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3 years agoplatform/x86: intel-vbtn: Stop reporting SW_DOCK events
Hans de Goede [Sun, 21 Mar 2021 16:35:13 +0000 (17:35 +0100)]
platform/x86: intel-vbtn: Stop reporting SW_DOCK events

BugLink: https://bugs.launchpad.net/bugs/1922601
commit 538d2dd0b9920334e6596977a664e9e7bac73703 upstream.

Stop reporting SW_DOCK events because this breaks suspend-on-lid-close.

SW_DOCK should only be reported for docking stations, but all the DSDTs in
my DSDT collection which use the intel-vbtn code, always seem to use this
for 2-in-1s / convertibles and set SW_DOCK=1 when in laptop-mode (in tandem
with setting SW_TABLET_MODE=0).

This causes userspace to think the laptop is docked to a port-replicator
and to disable suspend-on-lid-close, which is undesirable.

Map the dock events to KEY_IGNORE to avoid this broken SW_DOCK reporting.

Note this may theoretically cause us to stop reporting SW_DOCK on some
device where the 0xCA and 0xCB intel-vbtn events are actually used for
reporting docking to a classic docking-station / port-replicator but
I'm not aware of any such devices.

Also the most important thing is that we only report SW_DOCK when it
reliably reports being docked to a classic docking-station without any
false positives, which clearly is not the case here. If there is a
chance of reporting false positives then it is better to not report
SW_DOCK at all.

Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210321163513.72328-1-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonetsec: restore phy power state after controller reset
Mian Yousaf Kaukab [Thu, 18 Mar 2021 08:50:26 +0000 (09:50 +0100)]
netsec: restore phy power state after controller reset

BugLink: https://bugs.launchpad.net/bugs/1922601
commit 804741ac7b9f2fdebe3740cb0579cb8d94d49e60 upstream.

Since commit 8e850f25b581 ("net: socionext: Stop PHY before resetting
netsec") netsec_netdev_init() power downs phy before resetting the
controller. However, the state is not restored once the reset is
complete. As a result it is not possible to bring up network on a
platform with Broadcom BCM5482 phy.

Fix the issue by restoring phy power state after controller reset is
complete.

Fixes: 8e850f25b581 ("net: socionext: Stop PHY before resetting netsec")
Cc: stable@vger.kernel.org
Signed-off-by: Mian Yousaf Kaukab <ykaukab@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agoselinux: fix variable scope issue in live sidtab conversion
Ondrej Mosnacek [Thu, 18 Mar 2021 21:53:02 +0000 (22:53 +0100)]
selinux: fix variable scope issue in live sidtab conversion

BugLink: https://bugs.launchpad.net/bugs/1922601
commit 6406887a12ee5dcdaffff1a8508d91113d545559 upstream.

Commit 02a52c5c8c3b ("selinux: move policy commit after updating
selinuxfs") moved the selinux_policy_commit() call out of
security_load_policy() into sel_write_load(), which caused a subtle yet
rather serious bug.

The problem is that security_load_policy() passes a reference to the
convert_params local variable to sidtab_convert(), which stores it in
the sidtab, where it may be accessed until the policy is swapped over
and RCU synchronized. Before 02a52c5c8c3b, selinux_policy_commit() was
called directly from security_load_policy(), so the convert_params
pointer remained valid all the way until the old sidtab was destroyed,
but now that's no longer the case and calls to sidtab_context_to_sid()
on the old sidtab after security_load_policy() returns may cause invalid
memory accesses.

This can be easily triggered using the stress test from commit
ee1a84fdfeed ("selinux: overhaul sidtab to fix bug and improve
performance"):
```
function rand_cat() {
echo $(( $RANDOM % 1024 ))
}

function do_work() {
while true; do
echo -n "system_u:system_r:kernel_t:s0:c$(rand_cat),c$(rand_cat)" \
>/sys/fs/selinux/context 2>/dev/null || true
done
}

do_work >/dev/null &
do_work >/dev/null &
do_work >/dev/null &

while load_policy; do echo -n .; sleep 0.1; done

kill %1
kill %2
kill %3
```

Fix this by allocating the temporary sidtab convert structures
dynamically and passing them among the
selinux_policy_{load,cancel,commit} functions.

Fixes: 02a52c5c8c3b ("selinux: move policy commit after updating selinuxfs")
Cc: stable@vger.kernel.org
Tested-by: Tyler Hicks <tyhicks@linux.microsoft.com>
Reviewed-by: Tyler Hicks <tyhicks@linux.microsoft.com>
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
[PM: merge fuzz in security.h and services.c]
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agoselinux: don't log MAC_POLICY_LOAD record on failed policy load
Ondrej Mosnacek [Thu, 18 Mar 2021 21:53:01 +0000 (22:53 +0100)]
selinux: don't log MAC_POLICY_LOAD record on failed policy load

BugLink: https://bugs.launchpad.net/bugs/1922601
commit 519dad3bcd809dc1523bf80ab0310ddb3bf00ade upstream.

If sel_make_policy_nodes() fails, we should jump to 'out', not 'out1',
as the latter would incorrectly log an MAC_POLICY_LOAD audit record,
even though the policy hasn't actually been reloaded. The 'out1' jump
label now becomes unused and can be removed.

Fixes: 02a52c5c8c3b ("selinux: move policy commit after updating selinuxfs")
Cc: stable@vger.kernel.org
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agobtrfs: fix subvolume/snapshot deletion not triggered on mount
Filipe Manana [Tue, 16 Mar 2021 16:53:46 +0000 (16:53 +0000)]
btrfs: fix subvolume/snapshot deletion not triggered on mount

BugLink: https://bugs.launchpad.net/bugs/1922601
commit 8d488a8c7ba22d7112fbf6b0a82beb1cdea1c0d5 upstream.

During the mount procedure we are calling btrfs_orphan_cleanup() against
the root tree, which will find all orphans items in this tree. When an
orphan item corresponds to a deleted subvolume/snapshot (instead of an
inode space cache), it must not delete the orphan item, because that will
cause btrfs_find_orphan_roots() to not find the orphan item and therefore
not add the corresponding subvolume root to the list of dead roots, which
results in the subvolume's tree never being deleted by the cleanup thread.

The same applies to the remount from RO to RW path.

Fix this by making btrfs_find_orphan_roots() run before calling
btrfs_orphan_cleanup() against the root tree.

A test case for fstests will follow soon.

Reported-by: Robbie Ko <robbieko@synology.com>
Link: https://lore.kernel.org/linux-btrfs/b19f4310-35e0-606e-1eea-2dd84d28c5da@synology.com/
Fixes: 638331fa56caea ("btrfs: fix transaction leak and crash after cleaning up orphans on RO mount")
CC: stable@vger.kernel.org # 5.11+
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agobtrfs: fix sleep while in non-sleep context during qgroup removal
Filipe Manana [Thu, 18 Mar 2021 11:22:05 +0000 (11:22 +0000)]
btrfs: fix sleep while in non-sleep context during qgroup removal

BugLink: https://bugs.launchpad.net/bugs/1922601
commit 0bb788300990d3eb5582d3301a720f846c78925c upstream.

While removing a qgroup's sysfs entry we end up taking the kernfs_mutex,
through kobject_del(), while holding the fs_info->qgroup_lock spinlock,
producing the following trace:

  [821.843637] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:281
  [821.843641] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 28214, name: podman
  [821.843644] CPU: 3 PID: 28214 Comm: podman Tainted: G        W         5.11.6 #15
  [821.843646] Hardware name: Dell Inc. PowerEdge R330/084XW4, BIOS 2.11.0 12/08/2020
  [821.843647] Call Trace:
  [821.843650]  dump_stack+0xa1/0xfb
  [821.843656]  ___might_sleep+0x144/0x160
  [821.843659]  mutex_lock+0x17/0x40
  [821.843662]  kernfs_remove_by_name_ns+0x1f/0x80
  [821.843666]  sysfs_remove_group+0x7d/0xe0
  [821.843668]  sysfs_remove_groups+0x28/0x40
  [821.843670]  kobject_del+0x2a/0x80
  [821.843672]  btrfs_sysfs_del_one_qgroup+0x2b/0x40 [btrfs]
  [821.843685]  __del_qgroup_rb+0x12/0x150 [btrfs]
  [821.843696]  btrfs_remove_qgroup+0x288/0x2a0 [btrfs]
  [821.843707]  btrfs_ioctl+0x3129/0x36a0 [btrfs]
  [821.843717]  ? __mod_lruvec_page_state+0x5e/0xb0
  [821.843719]  ? page_add_new_anon_rmap+0xbc/0x150
  [821.843723]  ? kfree+0x1b4/0x300
  [821.843725]  ? mntput_no_expire+0x55/0x330
  [821.843728]  __x64_sys_ioctl+0x5a/0xa0
  [821.843731]  do_syscall_64+0x33/0x70
  [821.843733]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
  [821.843736] RIP: 0033:0x4cd3fb
  [821.843741] RSP: 002b:000000c000906b20 EFLAGS: 00000206 ORIG_RAX: 0000000000000010
  [821.843744] RAX: ffffffffffffffda RBX: 000000c000050000 RCX: 00000000004cd3fb
  [821.843745] RDX: 000000c000906b98 RSI: 000000004010942a RDI: 000000000000000f
  [821.843747] RBP: 000000c000907cd0 R08: 000000c000622901 R09: 0000000000000000
  [821.843748] R10: 000000c000d992c0 R11: 0000000000000206 R12: 000000000000012d
  [821.843749] R13: 000000000000012c R14: 0000000000000200 R15: 0000000000000049

Fix this by removing the qgroup sysfs entry while not holding the spinlock,
since the spinlock is only meant for protection of the qgroup rbtree.

Reported-by: Stuart Shelton <srcshelton@gmail.com>
Link: https://lore.kernel.org/linux-btrfs/7A5485BB-0628-419D-A4D3-27B1AF47E25A@gmail.com/
Fixes: 49e5fb46211de0 ("btrfs: qgroup: export qgroups in sysfs")
CC: stable@vger.kernel.org # 5.10+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agobtrfs: initialize device::fs_info always
Josef Bacik [Thu, 11 Mar 2021 16:23:14 +0000 (11:23 -0500)]
btrfs: initialize device::fs_info always

BugLink: https://bugs.launchpad.net/bugs/1922601
commit 820a49dafc3304de06f296c35c9ff1ebc1666343 upstream.

Neal reported a panic trying to use -o rescue=all

  BUG: kernel NULL pointer dereference, address: 0000000000000030
  PGD 0 P4D 0
  Oops: 0000 [#1] SMP NOPTI
  CPU: 0 PID: 696 Comm: mount Tainted: G        W         5.12.0-rc2+ #296
  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-2.fc32 04/01/2014
  RIP: 0010:btrfs_device_init_dev_stats+0x1d/0x200
  RSP: 0018:ffffafaec1483bb8 EFLAGS: 00010286
  RAX: 0000000000000000 RBX: ffff9a5715bcb298 RCX: 0000000000000070
  RDX: ffff9a5703248000 RSI: ffff9a57052ea150 RDI: ffff9a5715bca400
  RBP: ffff9a57052ea150 R08: 0000000000000070 R09: ffff9a57052ea150
  R10: 000130faf0741c10 R11: 0000000000000000 R12: ffff9a5703700000
  R13: 0000000000000000 R14: ffff9a5715bcb278 R15: ffff9a57052ea150
  FS:  00007f600d122c40(0000) GS:ffff9a577bc00000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 0000000000000030 CR3: 0000000112a46005 CR4: 0000000000370ef0
  Call Trace:
   ? btrfs_init_dev_stats+0x1f/0xf0
   ? kmem_cache_alloc+0xef/0x1f0
   btrfs_init_dev_stats+0x5f/0xf0
   open_ctree+0x10cb/0x1720
   btrfs_mount_root.cold+0x12/0xea
   legacy_get_tree+0x27/0x40
   vfs_get_tree+0x25/0xb0
   vfs_kern_mount.part.0+0x71/0xb0
   btrfs_mount+0x10d/0x380
   legacy_get_tree+0x27/0x40
   vfs_get_tree+0x25/0xb0
   path_mount+0x433/0xa00
   __x64_sys_mount+0xe3/0x120
   do_syscall_64+0x33/0x40
   entry_SYSCALL_64_after_hwframe+0x44/0xae

This happens because when we call btrfs_init_dev_stats we do
device->fs_info->dev_root.  However device->fs_info isn't initialized
because we were only calling btrfs_init_devices_late() if we properly
read the device root.  However we don't actually need the device root to
init the devices, this function simply assigns the devices their
->fs_info pointer properly, so this needs to be done unconditionally
always so that we can properly dereference device->fs_info in rescue
cases.

Reported-by: Neal Gompa <ngompa13@gmail.com>
CC: stable@vger.kernel.org # 5.11+
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agobtrfs: fix check_data_csum() error message for direct I/O
Omar Sandoval [Tue, 16 Mar 2021 19:43:00 +0000 (12:43 -0700)]
btrfs: fix check_data_csum() error message for direct I/O

BugLink: https://bugs.launchpad.net/bugs/1922601
commit c1d6abdac46ca8127274bea195d804e3f2cec7ee upstream.

Commit 1dae796aabf6 ("btrfs: inode: sink parameter start and len to
check_data_csum()") replaced the start parameter to check_data_csum()
with page_offset(), but page_offset() is not meaningful for direct I/O
pages. Bring back the start parameter.

Fixes: 265d4ac03fdf ("btrfs: sink parameter start and len to check_data_csum")
CC: stable@vger.kernel.org # 5.11+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agobtrfs: do not initialize dev replace for bad dev root
Josef Bacik [Thu, 11 Mar 2021 16:23:16 +0000 (11:23 -0500)]
btrfs: do not initialize dev replace for bad dev root

BugLink: https://bugs.launchpad.net/bugs/1922601
commit 3cb894972f1809aa8d087c42e5e8b26c64b7d508 upstream.

While helping Neal fix his broken file system I added a debug patch to
catch if we were calling btrfs_search_slot with a NULL root, and this
stack trace popped:

  we tried to search with a NULL root
  CPU: 0 PID: 1760 Comm: mount Not tainted 5.11.0-155.nealbtrfstest.1.fc34.x86_64 #1
  Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 07/22/2020
  Call Trace:
   dump_stack+0x6b/0x83
   btrfs_search_slot.cold+0x11/0x1b
   ? btrfs_init_dev_replace+0x36/0x450
   btrfs_init_dev_replace+0x71/0x450
   open_ctree+0x1054/0x1610
   btrfs_mount_root.cold+0x13/0xfa
   legacy_get_tree+0x27/0x40
   vfs_get_tree+0x25/0xb0
   vfs_kern_mount.part.0+0x71/0xb0
   btrfs_mount+0x131/0x3d0
   ? legacy_get_tree+0x27/0x40
   ? btrfs_show_options+0x640/0x640
   legacy_get_tree+0x27/0x40
   vfs_get_tree+0x25/0xb0
   path_mount+0x441/0xa80
   __x64_sys_mount+0xf4/0x130
   do_syscall_64+0x33/0x40
   entry_SYSCALL_64_after_hwframe+0x44/0xa9
  RIP: 0033:0x7f644730352e

Fix this by not starting the device replace stuff if we do not have a
NULL dev root.

Reported-by: Neal Gompa <ngompa13@gmail.com>
CC: stable@vger.kernel.org # 5.11+
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agobtrfs: do not initialize dev stats if we have no dev_root
Josef Bacik [Thu, 11 Mar 2021 16:23:15 +0000 (11:23 -0500)]
btrfs: do not initialize dev stats if we have no dev_root

BugLink: https://bugs.launchpad.net/bugs/1922601
commit 82d62d06db404d03836cdabbca41d38646d97cbb upstream.

Neal reported a panic trying to use -o rescue=all

  BUG: kernel NULL pointer dereference, address: 0000000000000030
  PGD 0 P4D 0
  Oops: 0000 [#1] SMP PTI
  CPU: 0 PID: 4095 Comm: mount Not tainted 5.11.0-0.rc7.149.fc34.x86_64 #1
  RIP: 0010:btrfs_device_init_dev_stats+0x4c/0x1f0
  RSP: 0018:ffffa60285fbfb68 EFLAGS: 00010246
  RAX: 0000000000000000 RBX: ffff88b88f806498 RCX: ffff88b82e7a2a10
  RDX: ffffa60285fbfb97 RSI: ffff88b82e7a2a10 RDI: 0000000000000000
  RBP: ffff88b88f806b3c R08: 0000000000000000 R09: 0000000000000000
  R10: ffff88b82e7a2a10 R11: 0000000000000000 R12: ffff88b88f806a00
  R13: ffff88b88f806478 R14: ffff88b88f806a00 R15: ffff88b82e7a2a10
  FS:  00007f698be1ec40(0000) GS:ffff88b937e00000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 0000000000000030 CR3: 0000000092c9c006 CR4: 00000000003706f0
  Call Trace:
  ? btrfs_init_dev_stats+0x1f/0xf0
  btrfs_init_dev_stats+0x62/0xf0
  open_ctree+0x1019/0x15ff
  btrfs_mount_root.cold+0x13/0xfa
  legacy_get_tree+0x27/0x40
  vfs_get_tree+0x25/0xb0
  vfs_kern_mount.part.0+0x71/0xb0
  btrfs_mount+0x131/0x3d0
  ? legacy_get_tree+0x27/0x40
  ? btrfs_show_options+0x640/0x640
  legacy_get_tree+0x27/0x40
  vfs_get_tree+0x25/0xb0
  path_mount+0x441/0xa80
  __x64_sys_mount+0xf4/0x130
  do_syscall_64+0x33/0x40
  entry_SYSCALL_64_after_hwframe+0x44/0xa9
  RIP: 0033:0x7f698c04e52e

This happens because we unconditionally attempt to initialize device
stats on mount, but we may not have been able to read the device root.
Fix this by skipping initializing the device stats if we do not have a
device root.

Reported-by: Neal Gompa <ngompa13@gmail.com>
CC: stable@vger.kernel.org # 5.11+
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agoKVM: x86: Protect userspace MSR filter with SRCU, and set atomically-ish
Sean Christopherson [Tue, 16 Mar 2021 18:44:33 +0000 (11:44 -0700)]
KVM: x86: Protect userspace MSR filter with SRCU, and set atomically-ish

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit b318e8decf6b9ef1bcf4ca06fae6d6a2cb5d5c5c ]

Fix a plethora of issues with MSR filtering by installing the resulting
filter as an atomic bundle instead of updating the live filter one range
at a time.  The KVM_X86_SET_MSR_FILTER ioctl() isn't truly atomic, as
the hardware MSR bitmaps won't be updated until the next VM-Enter, but
the relevant software struct is atomically updated, which is what KVM
really needs.

Similar to the approach used for modifying memslots, make arch.msr_filter
a SRCU-protected pointer, do all the work configuring the new filter
outside of kvm->lock, and then acquire kvm->lock only when the new filter
has been vetted and created.  That way vCPU readers either see the old
filter or the new filter in their entirety, not some half-baked state.

Yuan Yao pointed out a use-after-free in ksm_msr_allowed() due to a
TOCTOU bug, but that's just the tip of the iceberg...

  - Nothing is __rcu annotated, making it nigh impossible to audit the
    code for correctness.
  - kvm_add_msr_filter() has an unpaired smp_wmb().  Violation of kernel
    coding style aside, the lack of a smb_rmb() anywhere casts all code
    into doubt.
  - kvm_clear_msr_filter() has a double free TOCTOU bug, as it grabs
    count before taking the lock.
  - kvm_clear_msr_filter() also has memory leak due to the same TOCTOU bug.

The entire approach of updating the live filter is also flawed.  While
installing a new filter is inherently racy if vCPUs are running, fixing
the above issues also makes it trivial to ensure certain behavior is
deterministic, e.g. KVM can provide deterministic behavior for MSRs with
identical settings in the old and new filters.  An atomic update of the
filter also prevents KVM from getting into a half-baked state, e.g. if
installing a filter fails, the existing approach would leave the filter
in a half-baked state, having already committed whatever bits of the
filter were already processed.

[*] https://lkml.kernel.org/r/20210312083157.25403-1-yaoyuan0329os@gmail.com

Fixes: 1a155254ff93 ("KVM: x86: Introduce MSR filtering")
Cc: stable@vger.kernel.org
Cc: Alexander Graf <graf@amazon.com>
Reported-by: Yuan Yao <yaoyuan0329os@gmail.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210316184436.2544875-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agostatic_call: Fix static_call_set_init()
Peter Zijlstra [Thu, 18 Mar 2021 10:27:19 +0000 (11:27 +0100)]
static_call: Fix static_call_set_init()

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 68b1eddd421d2b16c6655eceb48918a1e896bbbc ]

It turns out that static_call_set_init() does not preserve the other
flags; IOW. it clears TAIL if it was set.

Fixes: 9183c3f9ed710 ("static_call: Add inline static call infrastructure")
Reported-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Jarkko Sakkinen <jarkko@kernel.org>
Tested-by: Sumit Garg <sumit.garg@linaro.org>
Link: https://lkml.kernel.org/r/20210318113610.519406371@infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agostatic_call: Fix the module key fixup
Peter Zijlstra [Thu, 25 Feb 2021 22:03:51 +0000 (23:03 +0100)]
static_call: Fix the module key fixup

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 50bf8080a94d171e843fc013abec19d8ab9f50ae ]

Provided the target address of a R_X86_64_PC32 relocation is aligned,
the low two bits should be invariant between the relative and absolute
value.

Turns out the address is not aligned and things go sideways, ensure we
transfer the bits in the absolute form when fixing up the key address.

Fixes: 73f44fe19d35 ("static_call: Allow module use without exposing static_call_key")
Reported-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Link: https://lkml.kernel.org/r/20210225220351.GE4746@worktop.programming.kicks-ass.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agostatic_call: Allow module use without exposing static_call_key
Josh Poimboeuf [Wed, 27 Jan 2021 23:18:37 +0000 (17:18 -0600)]
static_call: Allow module use without exposing static_call_key

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 73f44fe19d359635a607e8e8daa0da4001c1cfc2 ]

When exporting static_call_key; with EXPORT_STATIC_CALL*(), the module
can use static_call_update() to change the function called.  This is
not desirable in general.

Not exporting static_call_key however also disallows usage of
static_call(), since objtool needs the key to construct the
static_call_site.

Solve this by allowing objtool to create the static_call_site using
the trampoline address when it builds a module and cannot find the
static_call_key symbol. The module loader will then try and map the
trampole back to a key before it constructs the normal sites list.

Doing this requires a trampoline -> key associsation, so add another
magic section that keeps those.

Originally-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/20210127231837.ifddpn7rhwdaepiu@treble
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agostatic_call: Pull some static_call declarations to the type headers
Peter Zijlstra [Mon, 18 Jan 2021 14:12:18 +0000 (15:12 +0100)]
static_call: Pull some static_call declarations to the type headers

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 880cfed3a012d7863f42251791cea7fe78c39390 ]

Some static call declarations are going to be needed on low level header
files. Move the necessary material to the dedicated static call types
header to avoid inclusion dependency hell.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/20210118141223.123667-4-frederic@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agoia64: fix ptrace(PTRACE_SYSCALL_INFO_EXIT) sign
Sergei Trofimovich [Sat, 13 Mar 2021 05:08:27 +0000 (21:08 -0800)]
ia64: fix ptrace(PTRACE_SYSCALL_INFO_EXIT) sign

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 61bf318eac2c13356f7bd1c6a05421ef504ccc8a ]

In https://bugs.gentoo.org/769614 Dmitry noticed that
`ptrace(PTRACE_GET_SYSCALL_INFO)` does not return error sign properly.

The bug is in mismatch between get/set errors:

static inline long syscall_get_error(struct task_struct *task,
                                     struct pt_regs *regs)
{
        return regs->r10 == -1 ? regs->r8:0;
}

static inline long syscall_get_return_value(struct task_struct *task,
                                            struct pt_regs *regs)
{
        return regs->r8;
}

static inline void syscall_set_return_value(struct task_struct *task,
                                            struct pt_regs *regs,
                                            int error, long val)
{
        if (error) {
                /* error < 0, but ia64 uses > 0 return value */
                regs->r8 = -error;
                regs->r10 = -1;
        } else {
                regs->r8 = val;
                regs->r10 = 0;
        }
}

Tested on v5.10 on rx3600 machine (ia64 9040 CPU).

Link: https://lkml.kernel.org/r/20210221002554.333076-2-slyfox@gentoo.org
Link: https://bugs.gentoo.org/769614
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Reported-by: Dmitry V. Levin <ldv@altlinux.org>
Reviewed-by: Dmitry V. Levin <ldv@altlinux.org>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agoia64: fix ia64_syscall_get_set_arguments() for break-based syscalls
Sergei Trofimovich [Sat, 13 Mar 2021 05:08:23 +0000 (21:08 -0800)]
ia64: fix ia64_syscall_get_set_arguments() for break-based syscalls

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 0ceb1ace4a2778e34a5414e5349712ae4dc41d85 ]

In https://bugs.gentoo.org/769614 Dmitry noticed that
`ptrace(PTRACE_GET_SYSCALL_INFO)` does not work for syscalls called via
glibc's syscall() wrapper.

ia64 has two ways to call syscalls from userspace: via `break` and via
`eps` instructions.

The difference is in stack layout:

1. `eps` creates simple stack frame: no locals, in{0..7} == out{0..8}
2. `break` uses userspace stack frame: may be locals (glibc provides
   one), in{0..7} == out{0..8}.

Both work fine in syscall handling cde itself.

But `ptrace(PTRACE_GET_SYSCALL_INFO)` uses unwind mechanism to
re-extract syscall arguments but it does not account for locals.

The change always skips locals registers. It should not change `eps`
path as kernel's handler already enforces locals=0 and fixes `break`.

Tested on v5.10 on rx3600 machine (ia64 9040 CPU).

Link: https://lkml.kernel.org/r/20210221002554.333076-1-slyfox@gentoo.org
Link: https://bugs.gentoo.org/769614
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Reported-by: Dmitry V. Levin <ldv@altlinux.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agomm/fork: clear PASID for new mm
Fenghua Yu [Sat, 13 Mar 2021 05:07:15 +0000 (21:07 -0800)]
mm/fork: clear PASID for new mm

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 82e69a121be4b1597ce758534816a8ee04c8b761 ]

When a new mm is created, its PASID should be cleared, i.e.  the PASID is
initialized to its init state 0 on both ARM and X86.

This patch was part of the series introducing mm->pasid, but got lost
along the way [1].  It still makes sense to have it, because each address
space has a different PASID.  And the IOMMU code in
iommu_sva_alloc_pasid() expects the pasid field of a new mm struct to be
cleared.

[1] https://lore.kernel.org/linux-iommu/YDgh53AcQHT+T3L0@otcwcpicx3.sc.intel.com/

Link: https://lkml.kernel.org/r/20210302103837.2562625-1-jean-philippe@linaro.org
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Cc: Jacob Pan <jacob.jun.pan@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agoio_uring: cancel deferred requests in try_cancel
Pavel Begunkov [Thu, 11 Mar 2021 23:29:35 +0000 (23:29 +0000)]
io_uring: cancel deferred requests in try_cancel

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit e1915f76a8981f0a750cf56515df42582a37c4b0 ]

As io_uring_cancel_files() and others let SQO to run between
io_uring_try_cancel_requests(), SQO may generate new deferred requests,
so it's safer to try to cancel them in it.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agoblock: Suppress uevent for hidden device when removed
Daniel Wagner [Thu, 11 Mar 2021 15:19:17 +0000 (16:19 +0100)]
block: Suppress uevent for hidden device when removed

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 9ec491447b90ad6a4056a9656b13f0b3a1e83043 ]

register_disk() suppress uevents for devices with the GENHD_FL_HIDDEN
but enables uevents at the end again in order to announce disk after
possible partitions are created.

When the device is removed the uevents are still on and user land sees
'remove' messages for devices which were never 'add'ed to the system.

  KERNEL[95481.571887] remove   /devices/virtual/nvme-fabrics/ctl/nvme5/nvme0c5n1 (block)

Let's suppress the uevents for GENHD_FL_HIDDEN by not enabling the
uevents at all.

Signed-off-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin Wilck <mwilck@suse.com>
Link: https://lore.kernel.org/r/20210311151917.136091-1-dwagner@suse.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonfs: we don't support removing system.nfs4_acl
J. Bruce Fields [Thu, 28 Jan 2021 22:36:38 +0000 (17:36 -0500)]
nfs: we don't support removing system.nfs4_acl

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 4f8be1f53bf615102d103c0509ffa9596f65b718 ]

The NFSv4 protocol doesn't have any notion of reomoving an attribute, so
removexattr(path,"system.nfs4_acl") doesn't make sense.

There's no documented return value.  Arguably it could be EOPNOTSUPP but
I'm a little worried an application might take that to mean that we
don't support ACLs or xattrs.  How about EINVAL?

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonvme-pci: add the DISABLE_WRITE_ZEROES quirk for a Samsung PM1725a
Dmitry Monakhov [Wed, 10 Mar 2021 12:06:41 +0000 (12:06 +0000)]
nvme-pci: add the DISABLE_WRITE_ZEROES quirk for a Samsung PM1725a

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit abbb5f5929ec6c52574c430c5475c158a65c2a8c ]

This adds a quirk for Samsung PM1725a drive which fixes timeouts and
I/O errors due to the fact that the controller does not properly
handle the Write Zeroes command, dmesg log:

nvme nvme0: I/O 528 QID 10 timeout, aborting
nvme nvme0: I/O 529 QID 10 timeout, aborting
nvme nvme0: I/O 530 QID 10 timeout, aborting
nvme nvme0: I/O 531 QID 10 timeout, aborting
nvme nvme0: I/O 532 QID 10 timeout, aborting
nvme nvme0: I/O 533 QID 10 timeout, aborting
nvme nvme0: I/O 534 QID 10 timeout, aborting
nvme nvme0: I/O 535 QID 10 timeout, aborting
nvme nvme0: Abort status: 0x0
nvme nvme0: Abort status: 0x0
nvme nvme0: Abort status: 0x0
nvme nvme0: Abort status: 0x0
nvme nvme0: Abort status: 0x0
nvme nvme0: Abort status: 0x0
nvme nvme0: Abort status: 0x0
nvme nvme0: Abort status: 0x0
nvme nvme0: I/O 528 QID 10 timeout, reset controller
nvme nvme0: controller is down; will reset: CSTS=0x3, PCI_STATUS=0x10
nvme nvme0: Device not ready; aborting reset, CSTS=0x3
nvme nvme0: Device not ready; aborting reset, CSTS=0x3
nvme nvme0: Removing after probe failure status: -19
nvme0n1: detected capacity change from 6251233968 to 0
blk_update_request: I/O error, dev nvme0n1, sector 32776 op 0x1:(WRITE) flags 0x3000 phys_seg 6 prio class 0
blk_update_request: I/O error, dev nvme0n1, sector 113319936 op 0x9:(WRITE_ZEROES) flags 0x800 phys_seg 0 prio class 0
Buffer I/O error on dev nvme0n1p2, logical block 1, lost async page write
blk_update_request: I/O error, dev nvme0n1, sector 113319680 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0
Buffer I/O error on dev nvme0n1p2, logical block 2, lost async page write
blk_update_request: I/O error, dev nvme0n1, sector 113319424 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0
Buffer I/O error on dev nvme0n1p2, logical block 3, lost async page write
blk_update_request: I/O error, dev nvme0n1, sector 113319168 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0
Buffer I/O error on dev nvme0n1p2, logical block 4, lost async page write
blk_update_request: I/O error, dev nvme0n1, sector 113318912 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0
Buffer I/O error on dev nvme0n1p2, logical block 5, lost async page write
blk_update_request: I/O error, dev nvme0n1, sector 113318656 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0
Buffer I/O error on dev nvme0n1p2, logical block 6, lost async page write
blk_update_request: I/O error, dev nvme0n1, sector 113318400 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0
blk_update_request: I/O error, dev nvme0n1, sector 113318144 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0
blk_update_request: I/O error, dev nvme0n1, sector 113317888 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0

Signed-off-by: Dmitry Monakhov <dmtrmonakhov@yandex-team.ru>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonvme-rdma: Fix a use after free in nvmet_rdma_write_data_done
Lv Yunlong [Thu, 11 Mar 2021 05:44:13 +0000 (21:44 -0800)]
nvme-rdma: Fix a use after free in nvmet_rdma_write_data_done

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit abec6561fc4e0fbb19591a0b35676d8c783b5493 ]

In nvmet_rdma_write_data_done, rsp is recoverd by wc->wr_cqe and freed by
nvmet_rdma_release_rsp(). But after that, pr_info() used the freed
chunk's member object and could leak the freed chunk address with
wc->wr_cqe by computing the offset.

Signed-off-by: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonvme-core: check ctrl css before setting up zns
Chaitanya Kulkarni [Tue, 9 Mar 2021 04:58:21 +0000 (20:58 -0800)]
nvme-core: check ctrl css before setting up zns

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 0ec84df4953bd42c6583a555773f1d4996a061eb ]

Ensure multiple Command Sets are supported before starting to setup a
ZNS namespace.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
[hch: move the check around a bit]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonvme-fc: return NVME_SC_HOST_ABORTED_CMD when a command has been aborted
Hannes Reinecke [Fri, 26 Feb 2021 07:17:28 +0000 (08:17 +0100)]
nvme-fc: return NVME_SC_HOST_ABORTED_CMD when a command has been aborted

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit ae3afe6308b43bbf49953101d4ba2c1c481133a8 ]

When a command has been aborted we should return NVME_SC_HOST_ABORTED_CMD
to be consistent with the other transports.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonvme-fc: set NVME_REQ_CANCELLED in nvme_fc_terminate_exchange()
Hannes Reinecke [Fri, 26 Feb 2021 07:17:27 +0000 (08:17 +0100)]
nvme-fc: set NVME_REQ_CANCELLED in nvme_fc_terminate_exchange()

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 3c7aafbc8d3d4d90430dfa126847a796c3e4ecfc ]

nvme_fc_terminate_exchange() is being called when exchanges are
being deleted, and as such we should be setting the NVME_REQ_CANCELLED
flag to have identical behaviour on all transports.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonvme: add NVME_REQ_CANCELLED flag in nvme_cancel_request()
Hannes Reinecke [Fri, 26 Feb 2021 07:17:26 +0000 (08:17 +0100)]
nvme: add NVME_REQ_CANCELLED flag in nvme_cancel_request()

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit d3589381987ec879b03f8ce3039df57e87f05901 ]

NVME_REQ_CANCELLED is translated into -EINTR in nvme_submit_sync_cmd(),
so we should be setting this flags during nvme_cancel_request() to
ensure that the callers to nvme_submit_sync_cmd() will get the correct
error code when the controller is reset.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chao Leng <lengchao@huawei.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonvme: simplify error logic in nvme_validate_ns()
Hannes Reinecke [Fri, 26 Feb 2021 07:17:25 +0000 (08:17 +0100)]
nvme: simplify error logic in nvme_validate_ns()

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit d95c1f4179a7f3ea8aa728ed00252a8ed0f8158f ]

We only should remove namespaces when we get fatal error back from
the device or when the namespace IDs have changed.
So instead of painfully masking out error numbers which might indicate
that the error should be ignored we could use an NVME status code
to indicated when the namespace should be removed.
That simplifies the final logic and makes it less error-prone.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agodrm/radeon: fix AGP dependency
Christian König [Mon, 8 Mar 2021 18:22:13 +0000 (19:22 +0100)]
drm/radeon: fix AGP dependency

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit cba2afb65cb05c3d197d17323fee4e3c9edef9cd ]

When AGP is compiled as module radeon must be compiled as module as
well.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agodrm/amdgpu: fb BO should be ttm_bo_type_device
Nirmoy Das [Mon, 8 Mar 2021 14:22:22 +0000 (15:22 +0100)]
drm/amdgpu: fb BO should be ttm_bo_type_device

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 521f04f9e3ffc73ef96c776035f8a0a31b4cdd81 ]

FB BO should not be ttm_bo_type_kernel type and
amdgpufb_create_pinned_object() pins the FB BO anyway.

Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agodrm/amdgpu/display: Use wm_table.entries for dcn301 calculate_wm
Zhan Liu [Tue, 9 Mar 2021 01:28:22 +0000 (20:28 -0500)]
drm/amdgpu/display: Use wm_table.entries for dcn301 calculate_wm

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit eda29602f1a8b2b32d8c8c354232d9d1ee1c064d ]

[Why]
For DGPU Navi, the wm_table.nv_entries are used. These entires are not
populated for DCN301 Vangogh APU, but instead wm_table.entries are.

[How]
Use DCN21 Renoir style wm calculations.

Signed-off-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Zhan Liu <zhan.liu@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Zhan Liu <zhan.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agodrm/amd/display: Enabled pipe harvesting in dcn30
Dillon Varone [Fri, 19 Feb 2021 23:15:30 +0000 (18:15 -0500)]
drm/amd/display: Enabled pipe harvesting in dcn30

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit d2c91285958a3e77db99c352c136af4243f8f529 ]

[Why & How]
Ported logic from dcn21 for reading in pipe fusing to dcn30.
Supported configurations are 1 and 6 pipes. Invalid fusing
will revert to 1 pipe being enabled.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Dillon Varone <dillon.varone@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Eryk Brol <eryk.brol@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agodrm/amd/display: Revert dram_clock_change_latency for DCN2.1
Sung Lee [Fri, 26 Feb 2021 18:20:43 +0000 (13:20 -0500)]
drm/amd/display: Revert dram_clock_change_latency for DCN2.1

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit b0075d114c33580f5c9fa9cee8e13d06db41471b ]

[WHY & HOW]
Using values provided by DF for latency may cause hangs in
multi display configurations. Revert change to previous value.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Sung Lee <sung.lee@amd.com>
Reviewed-by: Haonan Wang <Haonan.Wang2@amd.com>
Acked-by: Eryk Brol <eryk.brol@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agodrm/amd/display: Enable pflip interrupt upon pipe enable
Qingqing Zhuo [Fri, 19 Feb 2021 22:17:50 +0000 (17:17 -0500)]
drm/amd/display: Enable pflip interrupt upon pipe enable

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 7afa0033d6f7fb8a84798ef99d1117661c4e696c ]

[Why]
pflip interrupt would not be enabled promptly if a pipe is disabled
and re-enabled, causing flip_done timeout error during DP
compliance tests

[How]
Enable pflip interrupt upon pipe enablement

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Eryk Brol <eryk.brol@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agoblock: Fix REQ_OP_ZONE_RESET_ALL handling
Damien Le Moal [Wed, 10 Mar 2021 09:09:19 +0000 (18:09 +0900)]
block: Fix REQ_OP_ZONE_RESET_ALL handling

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit faa44c69daf9ccbd5b8a1aee13e0e0d037c0be17 ]

Similarly to a single zone reset operation (REQ_OP_ZONE_RESET), execute
REQ_OP_ZONE_RESET_ALL operations with REQ_SYNC set.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agoregulator: qcom-rpmh: Use correct buck for S1C regulator
satya priya [Wed, 24 Feb 2021 08:33:11 +0000 (14:03 +0530)]
regulator: qcom-rpmh: Use correct buck for S1C regulator

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit dfe03bca8db4957d4b60614ff7df4d136ba90f37 ]

Use correct buck, that is, pmic5_hfsmps515 for S1C regulator
of PM8350C PMIC.

Signed-off-by: satya priya <skakit@codeaurora.org>
Link: https://lore.kernel.org/r/1614155592-14060-7-git-send-email-skakit@codeaurora.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agoregulator: qcom-rpmh: Correct the pmic5_hfsmps515 buck
satya priya [Wed, 24 Feb 2021 08:33:08 +0000 (14:03 +0530)]
regulator: qcom-rpmh: Correct the pmic5_hfsmps515 buck

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit e610e072c87a30658479a7b4c51e1801cb3f450c ]

Correct the REGULATOR_LINEAR_RANGE and n_voltges for
pmic5_hfsmps515 buck.

Signed-off-by: satya priya <skakit@codeaurora.org>
Link: https://lore.kernel.org/r/1614155592-14060-4-git-send-email-skakit@codeaurora.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agokselftest: arm64: Fix exit code of sve-ptrace
Mark Brown [Tue, 9 Mar 2021 19:03:04 +0000 (19:03 +0000)]
kselftest: arm64: Fix exit code of sve-ptrace

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 07e644885bf6727a48db109fad053cb43f3c9859 ]

We track if sve-ptrace encountered a failure in a variable but don't
actually use that value when we exit the program, do so.

Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20210309190304.39169-1-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agou64_stats,lockdep: Fix u64_stats_init() vs lockdep
Peter Zijlstra [Mon, 8 Mar 2021 08:38:12 +0000 (09:38 +0100)]
u64_stats,lockdep: Fix u64_stats_init() vs lockdep

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit d5b0e0677bfd5efd17c5bbb00156931f0d41cb85 ]

Jakub reported that:

    static struct net_device *rtl8139_init_board(struct pci_dev *pdev)
    {
    ...
    u64_stats_init(&tp->rx_stats.syncp);
    u64_stats_init(&tp->tx_stats.syncp);
    ...
    }

results in lockdep getting confused between the RX and TX stats lock.
This is because u64_stats_init() is an inline calling seqcount_init(),
which is a macro using a static variable to generate a lockdep class.

By wrapping that in an inline, we negate the effect of the macro and
fold the static key variable, hence the confusion.

Fix by also making u64_stats_init() a macro for the case where it
matters, leaving the other case an inline for argument validation
etc.

Reported-by: Jakub Kicinski <kuba@kernel.org>
Debugged-by: "Ahmed S. Darwish" <a.darwish@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: "Erhard F." <erhard_f@mailbox.org>
Link: https://lkml.kernel.org/r/YEXicy6+9MksdLZh@hirez.programming.kicks-ass.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agostaging: rtl8192e: fix kconfig dependency on CRYPTO
Julian Braha [Mon, 22 Feb 2021 18:06:07 +0000 (13:06 -0500)]
staging: rtl8192e: fix kconfig dependency on CRYPTO

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 7c36194558cf49a86a53b5f60db8046c5e3013ae ]

When RTLLIB_CRYPTO_TKIP is enabled and CRYPTO is disabled,
Kbuild gives the following warning:

WARNING: unmet direct dependencies detected for CRYPTO_MICHAEL_MIC
  Depends on [n]: CRYPTO [=n]
  Selected by [m]:
  - RTLLIB_CRYPTO_TKIP [=m] && STAGING [=y] && RTLLIB [=m]

WARNING: unmet direct dependencies detected for CRYPTO_LIB_ARC4
  Depends on [n]: CRYPTO [=n]
  Selected by [m]:
  - RTLLIB_CRYPTO_TKIP [=m] && STAGING [=y] && RTLLIB [=m]
  - RTLLIB_CRYPTO_WEP [=m] && STAGING [=y] && RTLLIB [=m]

This is because RTLLIB_CRYPTO_TKIP selects CRYPTO_MICHAEL_MIC and
CRYPTO_LIB_ARC4, without depending on or selecting CRYPTO,
despite those config options being subordinate to CRYPTO.

Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Julian Braha <julianbraha@gmail.com>
Link: https://lore.kernel.org/r/20210222180607.399753-1-julianbraha@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agohabanalabs: Disable file operations after device is removed
Tomer Tayar [Mon, 1 Feb 2021 17:44:34 +0000 (19:44 +0200)]
habanalabs: Disable file operations after device is removed

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit ffd123fe839700366ea79b19ac3683bf56817372 ]

A device can be removed from the PCI subsystem while a process holds the
file descriptor opened.
In such a case, the driver attempts to kill the process, but as it is
still possible that the process will be alive after this step, the
device removal will complete, and we will end up with a process object
that points to a device object which was already released.

To prevent the usage of this released device object, disable the
following file operations for this process object, and avoid the cleanup
steps when the file descriptor is eventually closed.
The latter is just a best effort, as memory leak will occur.

Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agohabanalabs: Call put_pid() when releasing control device
Tomer Tayar [Fri, 19 Feb 2021 12:05:33 +0000 (14:05 +0200)]
habanalabs: Call put_pid() when releasing control device

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 27ac5aada024e0821c86540ad18f37edadd77d5e ]

The refcount of the "hl_fpriv" structure is not used for the control
device, and thus hl_hpriv_put() is not called when releasing this
device.
This results with no call to put_pid(), so add it explicitly in
hl_device_release_ctrl().

Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agosparc64: Fix opcode filtering in handling of no fault loads
Rob Gardner [Mon, 1 Mar 2021 05:48:16 +0000 (22:48 -0700)]
sparc64: Fix opcode filtering in handling of no fault loads

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit e5e8b80d352ec999d2bba3ea584f541c83f4ca3f ]

is_no_fault_exception() has two bugs which were discovered via random
opcode testing with stress-ng. Both are caused by improper filtering
of opcodes.

The first bug can be triggered by a floating point store with a no-fault
ASI, for instance "sta %f0, [%g0] #ASI_PNF", opcode C1A01040.

The code first tests op3[5] (0x1000000), which denotes a floating
point instruction, and then tests op3[2] (0x200000), which denotes a
store instruction. But these bits are not mutually exclusive, and the
above mentioned opcode has both bits set. The intent is to filter out
stores, so the test for stores must be done first in order to have
any effect.

The second bug can be triggered by a floating point load with one of
the invalid ASI values 0x8e or 0x8f, which pass this check in
is_no_fault_exception():
     if ((asi & 0xf2) == ASI_PNF)

An example instruction is "ldqa [%l7 + %o7] #ASI 0x8f, %f38",
opcode CF95D1EF. Asi values greater than 0x8b (ASI_SNFL) are fatal
in handle_ldf_stq(), and is_no_fault_exception() must not allow these
invalid asi values to make it that far.

In both of these cases, handle_ldf_stq() reacts by calling
sun4v_data_access_exception() or spitfire_data_access_exception(),
which call is_no_fault_exception() and results in an infinite
recursion.

Signed-off-by: Rob Gardner <rob.gardner@oracle.com>
Tested-by: Anatoly Pugachev <matorola@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agoumem: fix error return code in mm_pci_probe()
Wei Yongjun [Mon, 8 Mar 2021 12:35:01 +0000 (12:35 +0000)]
umem: fix error return code in mm_pci_probe()

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit eeb05595d22c19c8f814ff893dcf88ec277a2365 ]

Fix to return negative error code -ENOMEM from the blk_alloc_queue()
and dma_alloc_coherent() error handling cases instead of 0, as done
elsewhere in this function.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20210308123501.2573816-1-weiyongjun1@huawei.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agokbuild: dummy-tools: fix inverted tests for gcc
Jiri Slaby [Wed, 3 Mar 2021 10:43:14 +0000 (11:43 +0100)]
kbuild: dummy-tools: fix inverted tests for gcc

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit b3d9fc1436808a4ef9927e558b3415e728e710c5 ]

There is a test in Kconfig which takes inverted value of a compiler
check:
* config CC_HAS_INT128
        def_bool !$(cc-option,$(m64-flag) -D__SIZEOF_INT128__=0)

This results in CC_HAS_INT128 not being in super-config generated by
dummy-tools. So take this into account in the gcc script.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agokbuild: add image_name to no-sync-config-targets
Masahiro Yamada [Sun, 28 Feb 2021 06:10:25 +0000 (15:10 +0900)]
kbuild: add image_name to no-sync-config-targets

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 993bdde94547887faaad4a97f0b0480a6da271c3 ]

'make image_name' needs include/config/auto.conf to show the correct
output because KBUILD_IMAGE depends on CONFIG options, but should not
attempt to resync the configuration.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agoirqchip/ingenic: Add support for the JZ4760
Paul Cercueil [Sun, 7 Mar 2021 17:20:14 +0000 (17:20 +0000)]
irqchip/ingenic: Add support for the JZ4760

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 5fbecd2389f48e1415799c63130d0cdce1cf3f60 ]

Add support for the interrupt controller found in the JZ4760 SoC, which
works exactly like the one in the JZ4770.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210307172014.73481-2-paul@crapouillou.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agocifs: change noisy error message to FYI
Paulo Alcantara [Mon, 8 Mar 2021 15:00:48 +0000 (12:00 -0300)]
cifs: change noisy error message to FYI

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit e3d100eae44b42f309c1366efb8397368f1cf8ed ]

A customer has reported that their dmesg were being flooded by

  CIFS: VFS: \\server Cancelling wait for mid xxx cmd: a
  CIFS: VFS: \\server Cancelling wait for mid yyy cmd: b
  CIFS: VFS: \\server Cancelling wait for mid zzz cmd: c

because some processes that were performing statfs(2) on the share had
been interrupted due to their automount setup when certain users
logged in and out.

Change it to FYI as they should be mostly informative rather than
error messages.

Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agoatm: idt77252: fix null-ptr-dereference
Tong Zhang [Mon, 8 Mar 2021 03:25:30 +0000 (22:25 -0500)]
atm: idt77252: fix null-ptr-dereference

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 4416e98594dc04590ebc498fc4e530009535c511 ]

this one is similar to the phy_data allocation fix in uPD98402, the
driver allocate the idt77105_priv and store to dev_data but later
dereference using dev->dev_data, which will cause null-ptr-dereference.

fix this issue by changing dev_data to phy_data so that PRIV(dev) can
work correctly.

Signed-off-by: Tong Zhang <ztong0001@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agoatm: uPD98402: fix incorrect allocation
Tong Zhang [Mon, 8 Mar 2021 03:25:29 +0000 (22:25 -0500)]
atm: uPD98402: fix incorrect allocation

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 3153724fc084d8ef640c611f269ddfb576d1dcb1 ]

dev->dev_data is set in zatm.c, calling zatm_start() will overwrite this
dev->dev_data in uPD98402_start() and a subsequent PRIV(dev)->lock
(i.e dev->phy_data->lock) will result in a null-ptr-dereference.

I believe this is a typo and what it actually want to do is to allocate
phy_data instead of dev_data.

Signed-off-by: Tong Zhang <ztong0001@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonet: enetc: set MAC RX FIFO to recommended value
Alex Marginean [Sun, 7 Mar 2021 13:23:38 +0000 (15:23 +0200)]
net: enetc: set MAC RX FIFO to recommended value

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 1b2395dfff5bb40228a187f21f577cd90673d344 ]

On LS1028A, the MAC RX FIFO defaults to the value 2, which is too high
and may lead to RX lock-up under traffic at a rate higher than 6 Gbps.
Set it to 1 instead, as recommended by the hardware design team and by
later versions of the ENETC block guide.

Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com>
Reviewed-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Reviewed-by: Jason Liu <jason.hui.liu@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonet: davicom: Use platform_get_irq_optional()
Paul Cercueil [Sun, 7 Mar 2021 13:17:49 +0000 (13:17 +0000)]
net: davicom: Use platform_get_irq_optional()

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 2e2696223676d56db1a93acfca722c1b96cd552d ]

The second IRQ line really is optional, so use
platform_get_irq_optional() to obtain it.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonet: wan: fix error return code of uhdlc_init()
Jia-Ju Bai [Sun, 7 Mar 2021 09:12:56 +0000 (01:12 -0800)]
net: wan: fix error return code of uhdlc_init()

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 62765d39553cfd1ad340124fe1e280450e8c89e2 ]

When priv->rx_skbuff or priv->tx_skbuff is NULL, no error return code of
uhdlc_init() is assigned.
To fix this bug, ret is assigned with -ENOMEM in these cases.

Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonet: hisilicon: hns: fix error return code of hns_nic_clear_all_rx_fetch()
Jia-Ju Bai [Sun, 7 Mar 2021 08:40:12 +0000 (00:40 -0800)]
net: hisilicon: hns: fix error return code of hns_nic_clear_all_rx_fetch()

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 143c253f42bad20357e7e4432087aca747c43384 ]

When hns_assemble_skb() returns NULL to skb, no error return code of
hns_nic_clear_all_rx_fetch() is assigned.
To fix this bug, ret is assigned with -ENOMEM in this case.

Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agoNFS: Correct size calculation for create reply length
Frank Sorenson [Mon, 8 Mar 2021 18:12:13 +0000 (12:12 -0600)]
NFS: Correct size calculation for create reply length

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit ad3dbe35c833c2d4d0bbf3f04c785d32f931e7c9 ]

CREATE requests return a post_op_fh3, rather than nfs_fh3. The
post_op_fh3 includes an extra word to indicate 'handle_follows'.

Without that additional word, create fails when full 64-byte
filehandles are in use.

Add NFS3_post_op_fh_sz, and correct the size calculation for
NFS3_createres_sz.

Signed-off-by: Frank Sorenson <sorenson@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonfs: fix PNFS_FLEXFILE_LAYOUT Kconfig default
Timo Rothenpieler [Tue, 23 Feb 2021 14:19:01 +0000 (15:19 +0100)]
nfs: fix PNFS_FLEXFILE_LAYOUT Kconfig default

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit a0590473c5e6c4ef17c3132ad08fbad170f72d55 ]

This follows what was done in 8c2fabc6542d9d0f8b16bd1045c2eda59bdcde13.
With the default being m, it's impossible to build the module into the
kernel.

Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agogpiolib: acpi: Add missing IRQF_ONESHOT
Yang Li [Tue, 23 Feb 2021 08:35:58 +0000 (16:35 +0800)]
gpiolib: acpi: Add missing IRQF_ONESHOT

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 6e5d5791730b55a1f987e1db84b078b91eb49e99 ]

fixed the following coccicheck:
./drivers/gpio/gpiolib-acpi.c:176:7-27: ERROR: Threaded IRQ with no
primary handler requested without IRQF_ONESHOT

Make sure threaded IRQs without a primary handler are always request
with IRQF_ONESHOT

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agocpufreq: blacklist Arm Vexpress platforms in cpufreq-dt-platdev
Sudeep Holla [Thu, 18 Feb 2021 22:23:26 +0000 (22:23 +0000)]
cpufreq: blacklist Arm Vexpress platforms in cpufreq-dt-platdev

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit fbb31cb805fd3574d3be7defc06a7fd2fd9af7d2 ]

Add "arm,vexpress" to cpufreq-dt-platdev blacklist since the actual
scaling is handled by the firmware cpufreq drivers(scpi, scmi and
vexpress-spc).

Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agogfs2: fix use-after-free in trans_drain
Bob Peterson [Thu, 25 Feb 2021 16:11:09 +0000 (11:11 -0500)]
gfs2: fix use-after-free in trans_drain

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 1a5a2cfd34c17db73c53ef127272c8c1ae220485 ]

This patch adds code to function trans_drain to remove drained
bd elements from the ail lists, if queued, before freeing the bd.
If we don't remove the bd from the ail, function ail_drain will
try to reference the bd after it has been freed by trans_drain.

Thanks to Andy Price for his analysis of the problem.

Reported-by: Andy Price <anprice@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agocifs: ask for more credit on async read/write code paths
Aurelien Aptel [Thu, 4 Mar 2021 17:51:48 +0000 (17:51 +0000)]
cifs: ask for more credit on async read/write code paths

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 88fd98a2306755b965e4f4567f84e73db3b6738c ]

When doing a large read or write workload we only
very gradually increase the number of credits
which can cause problems with parallelizing large i/o
(I/O ramps up more slowly than it should for large
read/write workloads) especially with multichannel
when the number of credits on the secondary channels
starts out low (e.g. less than about 130) or when
recovering after server throttled back the number
of credit.

Signed-off-by: Aurelien Aptel <aaptel@suse.com>
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agogianfar: fix jumbo packets+napi+rx overrun crash
Michael Braun [Thu, 4 Mar 2021 19:52:52 +0000 (20:52 +0100)]
gianfar: fix jumbo packets+napi+rx overrun crash

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit d8861bab48b6c1fc3cdbcab8ff9d1eaea43afe7f ]

When using jumbo packets and overrunning rx queue with napi enabled,
the following sequence is observed in gfar_add_rx_frag:

   | lstatus                              |       | skb                   |
t  | lstatus,  size, flags                | first | len, data_len, *ptr   |
---+--------------------------------------+-------+-----------------------+
13 | 18002348, 9032, INTERRUPT LAST       | 0     | 9600, 8000,  f554c12e |
12 | 10000640, 1600, INTERRUPT            | 0     | 8000, 6400,  f554c12e |
11 | 10000640, 1600, INTERRUPT            | 0     | 6400, 4800,  f554c12e |
10 | 10000640, 1600, INTERRUPT            | 0     | 4800, 3200,  f554c12e |
09 | 10000640, 1600, INTERRUPT            | 0     | 3200, 1600,  f554c12e |
08 | 14000640, 1600, INTERRUPT FIRST      | 0     | 1600, 0,     f554c12e |
07 | 14000640, 1600, INTERRUPT FIRST      | 1     | 0,    0,     f554c12e |
06 | 1c000080, 128,  INTERRUPT LAST FIRST | 1     | 0,    0,     abf3bd6e |
05 | 18002348, 9032, INTERRUPT LAST       | 0     | 8000, 6400,  c5a57780 |
04 | 10000640, 1600, INTERRUPT            | 0     | 6400, 4800,  c5a57780 |
03 | 10000640, 1600, INTERRUPT            | 0     | 4800, 3200,  c5a57780 |
02 | 10000640, 1600, INTERRUPT            | 0     | 3200, 1600,  c5a57780 |
01 | 10000640, 1600, INTERRUPT            | 0     | 1600, 0,     c5a57780 |
00 | 14000640, 1600, INTERRUPT FIRST      | 1     | 0,    0,     c5a57780 |

So at t=7 a new packets is started but not finished, probably due to rx
overrun - but rx overrun is not indicated in the flags. Instead a new
packets starts at t=8. This results in skb->len to exceed size for the LAST
fragment at t=13 and thus a negative fragment size added to the skb.

This then crashes:

kernel BUG at include/linux/skbuff.h:2277!
Oops: Exception in kernel mode, sig: 5 [#1]
...
NIP [c04689f4] skb_pull+0x2c/0x48
LR [c03f62ac] gfar_clean_rx_ring+0x2e4/0x844
Call Trace:
[ec4bfd38] [c06a84c4] _raw_spin_unlock_irqrestore+0x60/0x7c (unreliable)
[ec4bfda8] [c03f6a44] gfar_poll_rx_sq+0x48/0xe4
[ec4bfdc8] [c048d504] __napi_poll+0x54/0x26c
[ec4bfdf8] [c048d908] net_rx_action+0x138/0x2c0
[ec4bfe68] [c06a8f34] __do_softirq+0x3a4/0x4fc
[ec4bfed8] [c0040150] run_ksoftirqd+0x58/0x70
[ec4bfee8] [c0066ecc] smpboot_thread_fn+0x184/0x1cc
[ec4bff08] [c0062718] kthread+0x140/0x144
[ec4bff38] [c0012350] ret_from_kernel_thread+0x14/0x1c

This patch fixes this by checking for computed LAST fragment size, so a
negative sized fragment is never added.
In order to prevent the newer rx frame from getting corrupted, the FIRST
flag is checked to discard the incomplete older frame.

Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agosun/niu: fix wrong RXMAC_BC_FRM_CNT_COUNT count
Denis Efremov [Fri, 5 Mar 2021 17:02:12 +0000 (20:02 +0300)]
sun/niu: fix wrong RXMAC_BC_FRM_CNT_COUNT count

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 155b23e6e53475ca3b8c2a946299b4d4dd6a5a1e ]

RXMAC_BC_FRM_CNT_COUNT added to mp->rx_bcasts twice in a row
in niu_xmac_interrupt(). Remove the second addition.

Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonet: intel: iavf: fix error return code of iavf_init_get_resources()
Jia-Ju Bai [Fri, 5 Mar 2021 03:10:10 +0000 (19:10 -0800)]
net: intel: iavf: fix error return code of iavf_init_get_resources()

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 6650d31f21b8a0043613ae0a4a2e42e49dc20b2d ]

When iavf_process_config() fails, no error return code of
iavf_init_get_resources() is assigned.
To fix this bug, err is assigned with the return value of
iavf_process_config(), and then err is checked.

Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonet: tehuti: fix error return code in bdx_probe()
Jia-Ju Bai [Fri, 5 Mar 2021 02:06:48 +0000 (18:06 -0800)]
net: tehuti: fix error return code in bdx_probe()

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 38c26ff3048af50eee3fcd591921357ee5bfd9ee ]

When bdx_read_mac() fails, no error return code of bdx_probe()
is assigned.
To fix this bug, err is assigned with -EFAULT as error return code.

Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agoblk-cgroup: Fix the recursive blkg rwstat
Xunlei Pang [Fri, 5 Mar 2021 08:13:27 +0000 (16:13 +0800)]
blk-cgroup: Fix the recursive blkg rwstat

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 4f44657d74873735e93a50eb25014721a66aac19 ]

The current blkio.throttle.io_service_bytes_recursive doesn't
work correctly.

As an example, for the following blkcg hierarchy:
 (Made 1GB READ in test1, 512MB READ in test2)
     test
    /    \
 test1   test2

$ head -n 1 test/test1/blkio.throttle.io_service_bytes_recursive
8:0 Read 1073684480
$ head -n 1 test/test2/blkio.throttle.io_service_bytes_recursive
8:0 Read 537448448
$ head -n 1 test/blkio.throttle.io_service_bytes_recursive
8:0 Read 537448448

Clearly, above data of "test" reflects "test2" not "test1"+"test2".

Do the correct summary in blkg_rwstat_recursive_sum().

Signed-off-by: Xunlei Pang <xlpang@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agoscsi: ufs: ufs-qcom: Disable interrupt in reset path
Nitin Rawat [Wed, 24 Feb 2021 05:36:48 +0000 (21:36 -0800)]
scsi: ufs: ufs-qcom: Disable interrupt in reset path

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 4a791574a0ccf36eb3a0a46fbd71d2768df3eef9 ]

Disable interrupt in reset path to flush pending IRQ handler in order to
avoid possible NoC issues.

Link: https://lore.kernel.org/r/1614145010-36079-3-git-send-email-cang@codeaurora.org
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Nitin Rawat <nitirawa@codeaurora.org>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agoixgbe: Fix memleak in ixgbe_configure_clsu32
Dinghao Liu [Sun, 3 Jan 2021 08:08:42 +0000 (16:08 +0800)]
ixgbe: Fix memleak in ixgbe_configure_clsu32

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 7a766381634da19fc837619b0a34590498d9d29a ]

When ixgbe_fdir_write_perfect_filter_82599() fails,
input allocated by kzalloc() has not been freed,
which leads to memleak.

Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agoALSA: hda: ignore invalid NHLT table
Mark Pearson [Tue, 2 Mar 2021 14:10:03 +0000 (09:10 -0500)]
ALSA: hda: ignore invalid NHLT table

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit a14a6219996ee6f6e858d83b11affc7907633687 ]

On some Lenovo systems if the microphone is disabled in the BIOS
only the NHLT table header is created, with no data. This means
the endpoints field is not correctly set to zero - leading to an
unintialised variable and hence invalid descriptors are parsed
leading to page faults.

The Lenovo firmware team is addressing this, but adding a check
preventing invalid tables being parsed is worthwhile.

Tested on a Lenovo T14.

Tested-by: Philipp Leskovitz <philipp.leskovitz@secunet.com>
Reported-by: Philipp Leskovitz <philipp.leskovitz@secunet.com>
Signed-off-by: Mark Pearson <markpearson@lenovo.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210302141003.7342-1-markpearson@lenovo.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agoRevert "r8152: adjust the settings about MAC clock speed down for RTL8153"
Hayes Wang [Wed, 3 Mar 2021 08:39:47 +0000 (16:39 +0800)]
Revert "r8152: adjust the settings about MAC clock speed down for RTL8153"

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 4b5dc1a94d4f92b5845e98bd9ae344b26d933aad ]

This reverts commit 134f98bcf1b898fb9d6f2b91bc85dd2e5478b4b8.

The r8153_mac_clk_spd() is used for RTL8153A only, because the register
table of RTL8153B is different from RTL8153A. However, this function would
be called when RTL8153B calls r8153_first_init() and r8153_enter_oob().
That causes RTL8153B becomes unstable when suspending and resuming. The
worst case may let the device stop working.

Besides, revert this commit to disable MAC clock speed down for RTL8153A.
It would avoid the known issue when enabling U1. The data of the first
control transfer may be wrong when exiting U1.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agoatm: lanai: dont run lanai_dev_close if not open
Tong Zhang [Sun, 28 Feb 2021 03:55:50 +0000 (22:55 -0500)]
atm: lanai: dont run lanai_dev_close if not open

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit a2bd45834e83d6c5a04d397bde13d744a4812dfc ]

lanai_dev_open() can fail. When it fail, lanai->base is unmapped and the
pci device is disabled. The caller, lanai_init_one(), then tries to run
atm_dev_deregister(). This will subsequently call lanai_dev_close() and
use the already released MMIO area.

To fix this issue, set the lanai->base to NULL if open fail,
and test the flag in lanai_dev_close().

[    8.324153] lanai: lanai_start() failed, err=19
[    8.324819] lanai(itf 0): shutting down interface
[    8.325211] BUG: unable to handle page fault for address: ffffc90000180024
[    8.325781] #PF: supervisor write access in kernel mode
[    8.326215] #PF: error_code(0x0002) - not-present page
[    8.326641] PGD 100000067 P4D 100000067 PUD 100139067 PMD 10013a067 PTE 0
[    8.327206] Oops: 0002 [#1] SMP KASAN NOPTI
[    8.327557] CPU: 0 PID: 95 Comm: modprobe Not tainted 5.11.0-rc7-00090-gdcc0b49040c7 #12
[    8.328229] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-48-gd9c812dda519-4
[    8.329145] RIP: 0010:lanai_dev_close+0x4f/0xe5 [lanai]
[    8.329587] Code: 00 48 c7 c7 00 d3 01 c0 e8 49 4e 0a c2 48 8d bd 08 02 00 00 e8 6e 52 14 c1 48 80
[    8.330917] RSP: 0018:ffff8881029ef680 EFLAGS: 00010246
[    8.331196] RAX: 000000000003fffe RBX: ffff888102fb4800 RCX: ffffffffc001a98a
[    8.331572] RDX: ffffc90000180000 RSI: 0000000000000246 RDI: ffff888102fb4000
[    8.331948] RBP: ffff888102fb4000 R08: ffffffff8115da8a R09: ffffed102053deaa
[    8.332326] R10: 0000000000000003 R11: ffffed102053dea9 R12: ffff888102fb48a4
[    8.332701] R13: ffffffffc00123c0 R14: ffff888102fb4b90 R15: ffff888102fb4b88
[    8.333077] FS:  00007f08eb9056a0(0000) GS:ffff88815b400000(0000) knlGS:0000000000000000
[    8.333502] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.333806] CR2: ffffc90000180024 CR3: 0000000102a28000 CR4: 00000000000006f0
[    8.334182] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    8.334557] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    8.334932] Call Trace:
[    8.335066]  atm_dev_deregister+0x161/0x1a0 [atm]
[    8.335324]  lanai_init_one.cold+0x20c/0x96d [lanai]
[    8.335594]  ? lanai_send+0x2a0/0x2a0 [lanai]
[    8.335831]  local_pci_probe+0x6f/0xb0
[    8.336039]  pci_device_probe+0x171/0x240
[    8.336255]  ? pci_device_remove+0xe0/0xe0
[    8.336475]  ? kernfs_create_link+0xb6/0x110
[    8.336704]  ? sysfs_do_create_link_sd.isra.0+0x76/0xe0
[    8.336983]  really_probe+0x161/0x420
[    8.337181]  driver_probe_device+0x6d/0xd0
[    8.337401]  device_driver_attach+0x82/0x90
[    8.337626]  ? device_driver_attach+0x90/0x90
[    8.337859]  __driver_attach+0x60/0x100
[    8.338065]  ? device_driver_attach+0x90/0x90
[    8.338298]  bus_for_each_dev+0xe1/0x140
[    8.338511]  ? subsys_dev_iter_exit+0x10/0x10
[    8.338745]  ? klist_node_init+0x61/0x80
[    8.338956]  bus_add_driver+0x254/0x2a0
[    8.339164]  driver_register+0xd3/0x150
[    8.339370]  ? 0xffffffffc0028000
[    8.339550]  do_one_initcall+0x84/0x250
[    8.339755]  ? trace_event_raw_event_initcall_finish+0x150/0x150
[    8.340076]  ? free_vmap_area_noflush+0x1a5/0x5c0
[    8.340329]  ? unpoison_range+0xf/0x30
[    8.340532]  ? ____kasan_kmalloc.constprop.0+0x84/0xa0
[    8.340806]  ? unpoison_range+0xf/0x30
[    8.341014]  ? unpoison_range+0xf/0x30
[    8.341217]  do_init_module+0xf8/0x350
[    8.341419]  load_module+0x3fe6/0x4340
[    8.341621]  ? vm_unmap_ram+0x1d0/0x1d0
[    8.341826]  ? ____kasan_kmalloc.constprop.0+0x84/0xa0
[    8.342101]  ? module_frob_arch_sections+0x20/0x20
[    8.342358]  ? __do_sys_finit_module+0x108/0x170
[    8.342604]  __do_sys_finit_module+0x108/0x170
[    8.342841]  ? __ia32_sys_init_module+0x40/0x40
[    8.343083]  ? file_open_root+0x200/0x200
[    8.343298]  ? do_sys_open+0x85/0xe0
[    8.343491]  ? filp_open+0x50/0x50
[    8.343675]  ? exit_to_user_mode_prepare+0xfc/0x130
[    8.343935]  do_syscall_64+0x33/0x40
[    8.344132]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[    8.344401] RIP: 0033:0x7f08eb887cf7
[    8.344594] Code: 48 89 57 30 48 8b 04 24 48 89 47 38 e9 1d a0 02 00 48 89 f8 48 89 f7 48 89 d6 41
[    8.345565] RSP: 002b:00007ffcd5c98ad8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[    8.345962] RAX: ffffffffffffffda RBX: 00000000008fea70 RCX: 00007f08eb887cf7
[    8.346336] RDX: 0000000000000000 RSI: 00000000008fd9e0 RDI: 0000000000000003
[    8.346711] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000001
[    8.347085] R10: 00007f08eb8eb300 R11: 0000000000000246 R12: 00000000008fd9e0
[    8.347460] R13: 0000000000000000 R14: 00000000008fddd0 R15: 0000000000000001
[    8.347836] Modules linked in: lanai(+) atm
[    8.348065] CR2: ffffc90000180024
[    8.348244] ---[ end trace 7fdc1c668f2003e5 ]---
[    8.348490] RIP: 0010:lanai_dev_close+0x4f/0xe5 [lanai]
[    8.348772] Code: 00 48 c7 c7 00 d3 01 c0 e8 49 4e 0a c2 48 8d bd 08 02 00 00 e8 6e 52 14 c1 48 80
[    8.349745] RSP: 0018:ffff8881029ef680 EFLAGS: 00010246
[    8.350022] RAX: 000000000003fffe RBX: ffff888102fb4800 RCX: ffffffffc001a98a
[    8.350397] RDX: ffffc90000180000 RSI: 0000000000000246 RDI: ffff888102fb4000
[    8.350772] RBP: ffff888102fb4000 R08: ffffffff8115da8a R09: ffffed102053deaa
[    8.351151] R10: 0000000000000003 R11: ffffed102053dea9 R12: ffff888102fb48a4
[    8.351525] R13: ffffffffc00123c0 R14: ffff888102fb4b90 R15: ffff888102fb4b88
[    8.351918] FS:  00007f08eb9056a0(0000) GS:ffff88815b400000(0000) knlGS:0000000000000000
[    8.352343] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.352647] CR2: ffffc90000180024 CR3: 0000000102a28000 CR4: 00000000000006f0
[    8.353022] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    8.353397] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    8.353958] modprobe (95) used greatest stack depth: 26216 bytes left

Signed-off-by: Tong Zhang <ztong0001@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agoatm: eni: dont release is never initialized
Tong Zhang [Sat, 27 Feb 2021 21:15:06 +0000 (16:15 -0500)]
atm: eni: dont release is never initialized

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 4deb550bc3b698a1f03d0332cde3df154d1b6c1e ]

label err_eni_release is reachable when eni_start() fail.
In eni_start() it calls dev->phy->start() in the last step, if start()
fail we don't need to call phy->stop(), if start() is never called, we
neither need to call phy->stop(), otherwise null-ptr-deref will happen.

In order to fix this issue, don't call phy->stop() in label err_eni_release

[    4.875714] ==================================================================
[    4.876091] BUG: KASAN: null-ptr-deref in suni_stop+0x47/0x100 [suni]
[    4.876433] Read of size 8 at addr 0000000000000030 by task modprobe/95
[    4.876778]
[    4.876862] CPU: 0 PID: 95 Comm: modprobe Not tainted 5.11.0-rc7-00090-gdcc0b49040c7 #2
[    4.877290] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-48-gd94
[    4.877876] Call Trace:
[    4.878009]  dump_stack+0x7d/0xa3
[    4.878191]  kasan_report.cold+0x10c/0x10e
[    4.878410]  ? __slab_free+0x2f0/0x340
[    4.878612]  ? suni_stop+0x47/0x100 [suni]
[    4.878832]  suni_stop+0x47/0x100 [suni]
[    4.879043]  eni_do_release+0x3b/0x70 [eni]
[    4.879269]  eni_init_one.cold+0x1152/0x1747 [eni]
[    4.879528]  ? _raw_spin_lock_irqsave+0x7b/0xd0
[    4.879768]  ? eni_ioctl+0x270/0x270 [eni]
[    4.879990]  ? __mutex_lock_slowpath+0x10/0x10
[    4.880226]  ? eni_ioctl+0x270/0x270 [eni]
[    4.880448]  local_pci_probe+0x6f/0xb0
[    4.880650]  pci_device_probe+0x171/0x240
[    4.880864]  ? pci_device_remove+0xe0/0xe0
[    4.881086]  ? kernfs_create_link+0xb6/0x110
[    4.881315]  ? sysfs_do_create_link_sd.isra.0+0x76/0xe0
[    4.881594]  really_probe+0x161/0x420
[    4.881791]  driver_probe_device+0x6d/0xd0
[    4.882010]  device_driver_attach+0x82/0x90
[    4.882233]  ? device_driver_attach+0x90/0x90
[    4.882465]  __driver_attach+0x60/0x100
[    4.882671]  ? device_driver_attach+0x90/0x90
[    4.882903]  bus_for_each_dev+0xe1/0x140
[    4.883114]  ? subsys_dev_iter_exit+0x10/0x10
[    4.883346]  ? klist_node_init+0x61/0x80
[    4.883557]  bus_add_driver+0x254/0x2a0
[    4.883764]  driver_register+0xd3/0x150
[    4.883971]  ? 0xffffffffc0038000
[    4.884149]  do_one_initcall+0x84/0x250
[    4.884355]  ? trace_event_raw_event_initcall_finish+0x150/0x150
[    4.884674]  ? unpoison_range+0xf/0x30
[    4.884875]  ? ____kasan_kmalloc.constprop.0+0x84/0xa0
[    4.885150]  ? unpoison_range+0xf/0x30
[    4.885352]  ? unpoison_range+0xf/0x30
[    4.885557]  do_init_module+0xf8/0x350
[    4.885760]  load_module+0x3fe6/0x4340
[    4.885960]  ? vm_unmap_ram+0x1d0/0x1d0
[    4.886166]  ? ____kasan_kmalloc.constprop.0+0x84/0xa0
[    4.886441]  ? module_frob_arch_sections+0x20/0x20
[    4.886697]  ? __do_sys_finit_module+0x108/0x170
[    4.886941]  __do_sys_finit_module+0x108/0x170
[    4.887178]  ? __ia32_sys_init_module+0x40/0x40
[    4.887419]  ? file_open_root+0x200/0x200
[    4.887634]  ? do_sys_open+0x85/0xe0
[    4.887826]  ? filp_open+0x50/0x50
[    4.888009]  ? fpregs_assert_state_consistent+0x4d/0x60
[    4.888287]  ? exit_to_user_mode_prepare+0x2f/0x130
[    4.888547]  do_syscall_64+0x33/0x40
[    4.888739]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[    4.889010] RIP: 0033:0x7ff62fcf1cf7
[    4.889202] Code: 48 89 57 30 48 8b 04 24 48 89 47 38 e9 1d a0 02 00 48 89 f8 48 89 f71
[    4.890172] RSP: 002b:00007ffe6644ade8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[    4.890570] RAX: ffffffffffffffda RBX: 0000000000f2ca70 RCX: 00007ff62fcf1cf7
[    4.890944] RDX: 0000000000000000 RSI: 0000000000f2b9e0 RDI: 0000000000000003
[    4.891318] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000001
[    4.891691] R10: 00007ff62fd55300 R11: 0000000000000246 R12: 0000000000f2b9e0
[    4.892064] R13: 0000000000000000 R14: 0000000000f2bdd0 R15: 0000000000000001
[    4.892439] ==================================================================

Signed-off-by: Tong Zhang <ztong0001@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agopowerpc/4xx: Fix build errors from mfdcr()
Michael Ellerman [Thu, 18 Feb 2021 12:30:58 +0000 (23:30 +1100)]
powerpc/4xx: Fix build errors from mfdcr()

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit eead089311f4d935ab5d1d8fbb0c42ad44699ada ]

lkp reported a build error in fsp2.o:

  CC      arch/powerpc/platforms/44x/fsp2.o
  {standard input}:577: Error: unsupported relocation against base

Which comes from:

  pr_err("GESR0: 0x%08x\n", mfdcr(base + PLB4OPB_GESR0));

Where our mfdcr() macro is stringifying "base + PLB4OPB_GESR0", and
passing that to the assembler, which obviously doesn't work.

The mfdcr() macro already checks that the argument is constant using
__builtin_constant_p(), and if not calls the out-of-line version of
mfdcr(). But in this case GCC is smart enough to notice that "base +
PLB4OPB_GESR0" will be constant, even though it's not something we can
immediately stringify into a register number.

Segher pointed out that passing the register number to the inline asm
as a constant would be better, and in fact it fixes the build error,
presumably because it gives GCC a chance to resolve the value.

While we're at it, change mtdcr() similarly.

Reported-by: kernel test robot <lkp@intel.com>
Suggested-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Feng Tang <feng.tang@intel.com>
Link: https://lore.kernel.org/r/20210218123058.748882-1-mpe@ellerman.id.au
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonet: fec: ptp: avoid register access when ipg clock is disabled
Heiko Thiery [Thu, 25 Feb 2021 21:15:16 +0000 (22:15 +0100)]
net: fec: ptp: avoid register access when ipg clock is disabled

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 6a4d7234ae9a3bb31181f348ade9bbdb55aeb5c5 ]

When accessing the timecounter register on an i.MX8MQ the kernel hangs.
This is only the case when the interface is down. This can be reproduced
by reading with 'phc_ctrl eth0 get'.

Like described in the change in 91c0d987a9788dcc5fe26baafd73bf9242b68900
the igp clock is disabled when the interface is down and leads to a
system hang.

So we check if the ptp clock status before reading the timecounter
register.

Signed-off-by: Heiko Thiery <heiko.thiery@gmail.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Link: https://lore.kernel.org/r/20210225211514.9115-1-heiko.thiery@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonet: stmmac: fix dma physical address of descriptor when display ring
Joakim Zhang [Thu, 25 Feb 2021 09:01:12 +0000 (17:01 +0800)]
net: stmmac: fix dma physical address of descriptor when display ring

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit bfaf91ca848e758ed7be99b61fd936d03819fa56 ]

Driver uses dma_alloc_coherent to allocate dma memory for descriptors,
dma_alloc_coherent will return both the virtual address and physical
address. AFAIK, virt_to_phys could not convert virtual address to
physical address, for which memory is allocated by dma_alloc_coherent.

dwmac4_display_ring() function is broken for various descriptor, it only
support normal descriptor(struct dma_desc) now, this patch also extends to
support all descriptor types.

Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agomt76: mt7915: only modify tx buffer list after allocating tx token id
Felix Fietkau [Tue, 16 Feb 2021 13:51:19 +0000 (14:51 +0100)]
mt76: mt7915: only modify tx buffer list after allocating tx token id

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit 94f0e6256c2ab6803c935634aa1f653174c94879 ]

Modifying the tx buffer list too early can leak DMA mappings

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210216135119.23809-2-nbd@nbd.name
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agomt76: fix tx skb error handling in mt76_dma_tx_queue_skb
Felix Fietkau [Tue, 16 Feb 2021 13:51:18 +0000 (14:51 +0100)]
mt76: fix tx skb error handling in mt76_dma_tx_queue_skb

BugLink: https://bugs.launchpad.net/bugs/1922601
[ Upstream commit ae064fc0e32a4d28389086d9f4b260a0c157cfee ]

When running out of room in the tx queue after calling drv->tx_prepare_skb,
the buffer list will already have been modified on MT7615 and newer drivers.
This can leak a DMA mapping and will show up as swiotlb allocation failures
on x86.

Fix this by moving the queue length check further up. This is less accurate,
since it can overestimate the needed room in the queue on MT7615 and newer,
but the difference is small enough to not matter in practice.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210216135119.23809-1-nbd@nbd.name
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agoLinux 5.11.10
Greg Kroah-Hartman [Thu, 25 Mar 2021 09:13:34 +0000 (10:13 +0100)]
Linux 5.11.10

BugLink: https://bugs.launchpad.net/bugs/1922600
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agoRevert "drm/ttm: Warn on pinning without holding a reference"
Greg Kroah-Hartman [Thu, 25 Mar 2021 08:52:40 +0000 (09:52 +0100)]
Revert "drm/ttm: Warn on pinning without holding a reference"

BugLink: https://bugs.launchpad.net/bugs/1922600
This reverts commit 7d09e9725b5dcc8d14e101de931e4969d033a6ad which is
commit 57fcd550eb15bce14a7154736379dfd4ed60ae81 upstream.

It is causing too many warnings on 5.11.y, so should be dropped for now.

Cc: Huang Rui <ray.huang@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Christian Koenig <christian.koenig@amd.com>
Cc: Huang Rui <ray.huang@amd.com>
Cc: Sasha Levin <sashal@kernel.org>
Reported-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Link: https://lore.kernel.org/r/8c3da8bc-0bf3-496f-1fd6-4f65a07b2d13@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agoRevert "drm/ttm: make ttm_bo_unpin more defensive"
Greg Kroah-Hartman [Thu, 25 Mar 2021 08:51:30 +0000 (09:51 +0100)]
Revert "drm/ttm: make ttm_bo_unpin more defensive"

BugLink: https://bugs.launchpad.net/bugs/1922600
This reverts commit 0492006cc5ecb112d109a4b5cfa99798184a69e2 which is
commit 6c5403173a13a08ff61dbdafa4c0ed4a9dedbfe0 upstream.

It, and the following revert, are causing unneeded warnings to be sent
to the kernel log.  For 5.11 these are not needed at this point in time.

Cc: Christian König <christian.koenig@amd.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Sasha Levin <sashal@kernel.org>
Link: https://lore.kernel.org/r/8c3da8bc-0bf3-496f-1fd6-4f65a07b2d13@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonet/tls: Except bond interface from some TLS checks
Tariq Toukan [Sun, 17 Jan 2021 14:59:49 +0000 (16:59 +0200)]
net/tls: Except bond interface from some TLS checks

BugLink: https://bugs.launchpad.net/bugs/1915717
In the tls_dev_event handler, ignore tlsdev_ops requirement for bond
interfaces, they do not exist as the interaction is done directly with
the lower device.

Also, make the validate function pass when it's called with the upper
bond interface.

Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Boris Pismenny <borisp@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
(cherry picked from commit 4e5a73329051e5b24fb1d715a5417ef3f95b08a6)
Signed-off-by: Jeff Lane <jeffrey.lane@canonical.com>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonet/tls: Device offload to use lowest netdevice in chain
Tariq Toukan [Sun, 17 Jan 2021 14:59:48 +0000 (16:59 +0200)]
net/tls: Device offload to use lowest netdevice in chain

BugLink: https://bugs.launchpad.net/bugs/1915717
Do not call the tls_dev_ops of upper devices. Instead, ask them
for the proper lowest device and communicate with it directly.

Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Boris Pismenny <borisp@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
(cherry picked from commit 153cbd137f0ad9ee334fa805155b983e25a432e7)
Signed-off-by: Jeff Lane <jeffrey.lane@canonical.com>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonet/bonding: Declare TLS RX device offload support
Tariq Toukan [Sun, 17 Jan 2021 14:59:47 +0000 (16:59 +0200)]
net/bonding: Declare TLS RX device offload support

BugLink: https://bugs.launchpad.net/bugs/1915717
Following the description in previous patch (for TX):
As the bond interface is being bypassed by the TLS module, interacting
directly against the lower devs, there is no way for the bond interface
to disable its device offload capabilities, as long as the mode/policy
config allows it.
Hence, the feature flag is not directly controllable, but just reflects
the offload status based on the logic under bond_sk_check().

Here we just declare RX device offload support, and expose it via the
NETIF_F_HW_TLS_RX flag.

Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Boris Pismenny <borisp@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
(cherry picked from commit dc5809f9e2b674a489723bd8d0131c97e565ca8d)
Signed-off-by: Jeff Lane <jeffrey.lane@canonical.com>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonet/bonding: Implement TLS TX device offload
Tariq Toukan [Sun, 17 Jan 2021 14:59:46 +0000 (16:59 +0200)]
net/bonding: Implement TLS TX device offload

BugLink: https://bugs.launchpad.net/bugs/1915717
Implement TLS TX device offload for bonding interfaces.
This allows kTLS sockets running on a bond to benefit from the
device offload on capable lower devices.

To allow a simple and fast maintenance of the TLS context in SW and
lower devices, we bind the TLS socket to a specific lower dev.
To achieve a behavior similar to SW kTLS, we support only balance-xor
and 802.3ad modes, with xmit_hash_policy=layer3+4. This is enforced
in bond_sk_check(), done in a previous patch.

For the above configuration, the SW implementation keeps picking the
same exact lower dev for all the socket's SKBs. The device offload
behaves similarly, making the decision once at the connection creation.

Per socket, the TLS module should work directly with the lowest netdev
in chain, to call the tls_dev_ops operations.

As the bond interface is being bypassed by the TLS module, interacting
directly against the lower devs, there is no way for the bond interface
to disable its device offload capabilities, as long as the mode/policy
config allows it.
Hence, the feature flag is not directly controllable, but just reflects
the current offload status based on the logic under bond_sk_check().

Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Boris Pismenny <borisp@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
(cherry picked from commit 89df6a8104706f94800ed527ad73d07465ea4d12)
Signed-off-by: Jeff Lane <jeffrey.lane@canonical.com>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonet/bonding: Take update_features call out of XFRM funciton
Tariq Toukan [Sun, 17 Jan 2021 14:59:45 +0000 (16:59 +0200)]
net/bonding: Take update_features call out of XFRM funciton

BugLink: https://bugs.launchpad.net/bugs/1915717
In preparation for more cases that call netdev_update_features().

While here, move the features logic to the stage where struct bond
is already updated, and pass it as the only parameter to function
bond_set_xfrm_features().

Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Boris Pismenny <borisp@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
(cherry picked from commit f45583de361db2160fbca4a99c20a0c44b34f36a)
Signed-off-by: Jeff Lane <jeffrey.lane@canonical.com>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonet/bonding: Implement ndo_sk_get_lower_dev
Tariq Toukan [Sun, 17 Jan 2021 14:59:44 +0000 (16:59 +0200)]
net/bonding: Implement ndo_sk_get_lower_dev

BugLink: https://bugs.launchpad.net/bugs/1915717
Add ndo_sk_get_lower_dev() implementation for bond interfaces.

Support only for the cases where the socket's and SKBs' hash
yields identical value for the whole connection lifetime.

Here we restrict it to L3+4 sockets only, with
xmit_hash_policy==LAYER34 and bond modes xor/802.3ad.

Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Boris Pismenny <borisp@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
(cherry picked from commit 007feb87fb15933b5de7135e6bdf57c219b3fbec)
Signed-off-by: Jeff Lane <jeffrey.lane@canonical.com>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonet/bonding: Take IP hash logic into a helper
Tariq Toukan [Sun, 17 Jan 2021 14:59:43 +0000 (16:59 +0200)]
net/bonding: Take IP hash logic into a helper

BugLink: https://bugs.launchpad.net/bugs/1915717
Hash logic on L3 will be used in a downstream patch for one more use
case.
Take it to a function for a better code reuse.

Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Boris Pismenny <borisp@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
(cherry picked from commit 5b99854540e35c2c6a226bcdb4bafbae1bccad5a)
Signed-off-by: Jeff Lane <jeffrey.lane@canonical.com>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agonet: netdevice: Add operation ndo_sk_get_lower_dev
Tariq Toukan [Sun, 17 Jan 2021 14:59:42 +0000 (16:59 +0200)]
net: netdevice: Add operation ndo_sk_get_lower_dev

BugLink: https://bugs.launchpad.net/bugs/1915717
ndo_sk_get_lower_dev returns the lower netdev that corresponds to
a given socket.
Additionally, we implement a helper netdev_sk_get_lowest_dev() to get
the lowest one in chain.

Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Boris Pismenny <borisp@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
(cherry picked from commit 719a402cf60311b1cdff3f6320abaecdcc5e46b7)
Signed-off-by: Jeff Lane <jeffrey.lane@canonical.com>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agodrm/i915/vbt: update DP max link rate table
Lee Shawn C [Fri, 2 Apr 2021 14:00:51 +0000 (22:00 +0800)]
drm/i915/vbt: update DP max link rate table

BugLink: https://bugs.launchpad.net/bugs/1922372
According to Bspec #20124, max link rate table for DP was updated
at BDB version 230. Max link rate can support upto UHBR.

After migrate to BDB v230, the definition for LBR, HBR2 and HBR3
were changed. For backward compatibility. If BDB version was
from 216 to 229. Driver have to follow original rule to configure
DP max link rate value from VBT.

v2: split the mapping table to two for old and new BDB definition.
v3: return link rate instead of assigning it.
v4: remove the useless variable.

Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Cooper Chiou <cooper.chiou@intel.com>
Cc: William Tseng <william.tseng@intel.com>
Signed-off-by: Lee Shawn C <shawn.c.lee@intel.com>
[vsyrjala: Try to retain the comment that VBT version 216 added some of this]
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210218052333.16109-1-shawn.c.lee@intel.com
(cherry picked from commit b60e320bf35971e67b6afabd5614c6196b3be95d linux-next)
Signed-off-by: Jeremy Szu <jeremy.szu@canonical.com>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
3 years agodt-bindings: gpio: Update DT binding docs to support SiFive FU740 SoC
Yash Shah [Thu, 1 Apr 2021 11:54:57 +0000 (12:54 +0100)]
dt-bindings: gpio: Update DT binding docs to support SiFive FU740 SoC

BugLink: https://bugs.launchpad.net/bugs/1920916
Add new compatible strings to the DT binding documents to support SiFive
FU740-C000.

Signed-off-by: Yash Shah <yash.shah@sifive.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
(cherry picked from commit 42cf244c8f03cc8a801333fe2fa3b7efa760d119)
Signed-off-by: Dimitri John Ledkov <xnox@ubuntu.com>
Acked-by: Tim Gardner <tim.gardner@canonical.com>
Acked-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>
3 years agodt-bindings: pwm: Update DT binding docs to support SiFive FU740 SoC
Yash Shah [Thu, 1 Apr 2021 11:54:56 +0000 (12:54 +0100)]
dt-bindings: pwm: Update DT binding docs to support SiFive FU740 SoC

BugLink: https://bugs.launchpad.net/bugs/1920916
Add new compatible strings to the DT binding documents to support SiFive
FU740-C000.

Signed-off-by: Yash Shah <yash.shah@sifive.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
(cherry picked from commit b1f592d5c1e31dfa46a161c52740f3bff1b1e963)
Signed-off-by: Dimitri John Ledkov <xnox@ubuntu.com>
Acked-by: Tim Gardner <tim.gardner@canonical.com>
Acked-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>
3 years agodt-bindings: riscv: Update DT binding docs to support SiFive FU740 SoC
Yash Shah [Thu, 1 Apr 2021 11:54:55 +0000 (12:54 +0100)]
dt-bindings: riscv: Update DT binding docs to support SiFive FU740 SoC

BugLink: https://bugs.launchpad.net/bugs/1920916
Add new compatible strings in cpus.yaml to support the E71 and U74 CPU
cores ("harts") that are present on FU740-C000 SoC.

Signed-off-by: Yash Shah <yash.shah@sifive.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
(cherry picked from commit 75e6d7248efccc2b13d0f3811b29d3e5cb04bcad)
Signed-off-by: Dimitri John Ledkov <xnox@ubuntu.com>
Acked-by: Tim Gardner <tim.gardner@canonical.com>
Acked-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>
3 years agoRISC-V: sifive_l2_cache: Update L2 cache driver to support SiFive FU740
Yash Shah [Thu, 1 Apr 2021 11:54:54 +0000 (12:54 +0100)]
RISC-V: sifive_l2_cache: Update L2 cache driver to support SiFive FU740

BugLink: https://bugs.launchpad.net/bugs/1920916
SiFive FU740 has 4 ECC interrupt sources as compared to 3 in FU540.
Update the L2 cache controller driver to support this additional
interrupt in case of FU740-C000 chip.

Signed-off-by: Yash Shah <yash.shah@sifive.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
(cherry picked from commit 507308b8ccc90d37b07bfca8ffe130435d6b354f)
BugLink: https://bugs.launchpad.net/bugs/1920916
Signed-off-by: Dimitri John Ledkov <xnox@ubuntu.com>
Acked-by: Tim Gardner <tim.gardner@canonical.com>
Acked-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>
3 years agodt-bindings: riscv: Update l2 cache DT documentation to add support for SiFive FU740
Yash Shah [Thu, 1 Apr 2021 11:54:53 +0000 (12:54 +0100)]
dt-bindings: riscv: Update l2 cache DT documentation to add support for SiFive FU740

BugLink: https://bugs.launchpad.net/bugs/1920916
The L2 cache controller in SiFive FU740 has 4 ECC interrupt sources as
compared to 3 in FU540. Update the DT documentation accordingly with
"compatible" and "interrupt" property changes.

Signed-off-by: Yash Shah <yash.shah@sifive.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
(cherry picked from commit af951c3a113bc2cc0419e39f5752ca77f7ddf228)
Signed-off-by: Dimitri John Ledkov <xnox@ubuntu.com>
Acked-by: Tim Gardner <tim.gardner@canonical.com>
Acked-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>
3 years agoRevert "dt-bindings: riscv: Update DT binding docs to support SiFive FU740 SoC"
Dimitri John Ledkov [Thu, 1 Apr 2021 11:54:52 +0000 (12:54 +0100)]
Revert "dt-bindings: riscv: Update DT binding docs to support SiFive FU740 SoC"

BugLink: https://bugs.launchpad.net/bugs/1920916
This reverts commit dc2249586f1b9558f745e65d61a4b0e383ca1714.

Signed-off-by: Dimitri John Ledkov <xnox@ubuntu.com>
Acked-by: Tim Gardner <tim.gardner@canonical.com>
Acked-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>
3 years agoRevert "RISC-V: Update l2 cache DT documentation to add support for SiFive FU740"
Dimitri John Ledkov [Thu, 1 Apr 2021 11:54:51 +0000 (12:54 +0100)]
Revert "RISC-V: Update l2 cache DT documentation to add support for SiFive FU740"

BugLink: https://bugs.launchpad.net/bugs/1920916
This reverts commit e8a04dd6d642cf1d2f7c6de0589c69305fa32deb.

Signed-off-by: Dimitri John Ledkov <xnox@ubuntu.com>
Acked-by: Tim Gardner <tim.gardner@canonical.com>
Acked-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>
3 years agoRevert "RISC-V: sifive_l2_cache: Update L2 cache driver to support SiFive FU740"
Dimitri John Ledkov [Thu, 1 Apr 2021 11:54:50 +0000 (12:54 +0100)]
Revert "RISC-V: sifive_l2_cache: Update L2 cache driver to support SiFive FU740"

BugLink: https://bugs.launchpad.net/bugs/1920916
This reverts commit 5063de1bbb516d06347285ad2a65cd8a23c6e75a.

Signed-off-by: Dimitri John Ledkov <xnox@ubuntu.com>
Acked-by: Tim Gardner <tim.gardner@canonical.com>
Acked-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>
3 years agoALSA: hda/realtek: fix mute/micmute LEDs for HP 640 G8
Jeremy Szu [Thu, 1 Apr 2021 10:29:21 +0000 (18:29 +0800)]
ALSA: hda/realtek: fix mute/micmute LEDs for HP 640 G8

BugLink: https://bugs.launchpad.net/bugs/1922207
The HP EliteBook 640 G8 Notebook PC is using ALC236 codec which is
using 0x02 to control mute LED and 0x01 to control micmute LED.
Therefore, add a quirk to make it works.

Signed-off-by: Jeremy Szu <jeremy.szu@canonical.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210330114428.40490-1-jeremy.szu@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
(cherry picked from commit 417eadfdd9e25188465280edf3668ed163fda2d0 linux-next)
Signed-off-by: Jeremy Szu <jeremy.szu@canonical.com>
Acked-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>
3 years agoUBUNTU: [Config] enable ath11k debugfs/tracing
You-Sheng Yang [Thu, 1 Apr 2021 06:53:12 +0000 (14:53 +0800)]
UBUNTU: [Config] enable ath11k debugfs/tracing

BugLink: https://bugs.launchpad.net/bugs/1922033
Signed-off-by: You-Sheng Yang <vicamo.yang@canonical.com>
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>
3 years agoiwlwifi: mvm: handle CCA-EXT delay firmware notification
Johannes Berg [Thu, 1 Apr 2021 05:01:32 +0000 (13:01 +0800)]
iwlwifi: mvm: handle CCA-EXT delay firmware notification

BugLink: https://bugs.launchpad.net/bugs/1922171
If there are frequent CCA delays due to the extension channel
as detected by the firmware, and we're on 2.4 GHz, then handle
this by disconnecting (with a reconnect hint).

When we disconnect, we'll also update our capabilities to use
only 20 MHz on the next connection (if it's on 2.4 GHz) as to
avoid the use of the extension channel that has too much noise.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210117130510.4de9c363b0b5.I709b7e6f73a7537c53f22d7418927691259de8a8@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
(backported from commit f7d6ef33a779c866721eea2b980f51bda1994a04)
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>
3 years agoUBUNTU: [Packaging] convert to v4 autogen form -- pull back updated dkms-build family
Andy Whitcroft [Fri, 2 Apr 2021 03:04:52 +0000 (04:04 +0100)]
UBUNTU: [Packaging] convert to v4 autogen form -- pull back updated dkms-build family

Pull back dkms-build--nvidia-N changes applied as part of the LRMv4
conversion:

    - [Packaging] convert to v4 autogen form -- lrs dependency
    - [Packaging] convert to v4 autogen form -- end-user assembly checks

BugLink: https://bugs.launchpad.net/bugs/1918134
Signed-off-by: Andy Whitcroft <apw@canonical.com>