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7 years agoKEYS: sanitize key structs before freeing
Eric Biggers [Thu, 8 Jun 2017 13:49:26 +0000 (14:49 +0100)]
KEYS: sanitize key structs before freeing

While a 'struct key' itself normally does not contain sensitive
information, Documentation/security/keys.txt actually encourages this:

     "Having a payload is not required; and the payload can, in fact,
     just be a value stored in the struct key itself."

In case someone has taken this advice, or will take this advice in the
future, zero the key structure before freeing it.  We might as well, and
as a bonus this could make it a bit more difficult for an adversary to
determine which keys have recently been in use.

This is safe because the key_jar cache does not use a constructor.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
7 years agoKEYS: trusted: sanitize all key material
Eric Biggers [Thu, 8 Jun 2017 13:49:18 +0000 (14:49 +0100)]
KEYS: trusted: sanitize all key material

As the previous patch did for encrypted-keys, zero sensitive any
potentially sensitive data related to the "trusted" key type before it
is freed.  Notably, we were not zeroing the tpm_buf structures in which
the actual key is stored for TPM seal and unseal, nor were we zeroing
the trusted_key_payload in certain error paths.

Cc: Mimi Zohar <zohar@linux.vnet.ibm.com>
Cc: David Safford <safford@us.ibm.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
7 years agoKEYS: encrypted: sanitize all key material
Eric Biggers [Thu, 8 Jun 2017 13:49:11 +0000 (14:49 +0100)]
KEYS: encrypted: sanitize all key material

For keys of type "encrypted", consistently zero sensitive key material
before freeing it.  This was already being done for the decrypted
payloads of encrypted keys, but not for the master key and the keys
derived from the master key.

Out of an abundance of caution and because it is trivial to do so, also
zero buffers containing the key payload in encrypted form, although
depending on how the encrypted-keys feature is used such information
does not necessarily need to be kept secret.

Cc: Mimi Zohar <zohar@linux.vnet.ibm.com>
Cc: David Safford <safford@us.ibm.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
7 years agoKEYS: user_defined: sanitize key payloads
Eric Biggers [Thu, 8 Jun 2017 13:49:04 +0000 (14:49 +0100)]
KEYS: user_defined: sanitize key payloads

Zero the payloads of user and logon keys before freeing them.  This
prevents sensitive key material from being kept around in the slab
caches after a key is released.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
7 years agoKEYS: sanitize add_key() and keyctl() key payloads
Eric Biggers [Thu, 8 Jun 2017 13:48:57 +0000 (14:48 +0100)]
KEYS: sanitize add_key() and keyctl() key payloads

Before returning from add_key() or one of the keyctl() commands that
takes in a key payload, zero the temporary buffer that was allocated to
hold the key payload copied from userspace.  This may contain sensitive
key material that should not be kept around in the slab caches.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
7 years agoKEYS: fix freeing uninitialized memory in key_update()
Eric Biggers [Thu, 8 Jun 2017 13:48:47 +0000 (14:48 +0100)]
KEYS: fix freeing uninitialized memory in key_update()

key_update() freed the key_preparsed_payload even if it was not
initialized first.  This would cause a crash if userspace called
keyctl_update() on a key with type like "asymmetric" that has a
->preparse() method but not an ->update() method.  Possibly it could
even be triggered for other key types by racing with keyctl_setperm() to
make the KEY_NEED_WRITE check fail (the permission was already checked,
so normally it wouldn't fail there).

Reproducer with key type "asymmetric", given a valid cert.der:

keyctl new_session
keyid=$(keyctl padd asymmetric desc @s < cert.der)
keyctl setperm $keyid 0x3f000000
keyctl update $keyid data

[  150.686666] BUG: unable to handle kernel NULL pointer dereference at 0000000000000001
[  150.687601] IP: asymmetric_key_free_kids+0x12/0x30
[  150.688139] PGD 38a3d067
[  150.688141] PUD 3b3de067
[  150.688447] PMD 0
[  150.688745]
[  150.689160] Oops: 0000 [#1] SMP
[  150.689455] Modules linked in:
[  150.689769] CPU: 1 PID: 2478 Comm: keyctl Not tainted 4.11.0-rc4-xfstests-00187-ga9f6b6b8cd2f #742
[  150.690916] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-20170228_101828-anatol 04/01/2014
[  150.692199] task: ffff88003b30c480 task.stack: ffffc90000350000
[  150.692952] RIP: 0010:asymmetric_key_free_kids+0x12/0x30
[  150.693556] RSP: 0018:ffffc90000353e58 EFLAGS: 00010202
[  150.694142] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000004
[  150.694845] RDX: ffffffff81ee3920 RSI: ffff88003d4b0700 RDI: 0000000000000001
[  150.697569] RBP: ffffc90000353e60 R08: ffff88003d5d2140 R09: 0000000000000000
[  150.702483] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
[  150.707393] R13: 0000000000000004 R14: ffff880038a4d2d8 R15: 000000000040411f
[  150.709720] FS:  00007fcbcee35700(0000) GS:ffff88003fd00000(0000) knlGS:0000000000000000
[  150.711504] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  150.712733] CR2: 0000000000000001 CR3: 0000000039eab000 CR4: 00000000003406e0
[  150.714487] Call Trace:
[  150.714975]  asymmetric_key_free_preparse+0x2f/0x40
[  150.715907]  key_update+0xf7/0x140
[  150.716560]  ? key_default_cmp+0x20/0x20
[  150.717319]  keyctl_update_key+0xb0/0xe0
[  150.718066]  SyS_keyctl+0x109/0x130
[  150.718663]  entry_SYSCALL_64_fastpath+0x1f/0xc2
[  150.719440] RIP: 0033:0x7fcbce75ff19
[  150.719926] RSP: 002b:00007ffd5d167088 EFLAGS: 00000206 ORIG_RAX: 00000000000000fa
[  150.720918] RAX: ffffffffffffffda RBX: 0000000000404d80 RCX: 00007fcbce75ff19
[  150.721874] RDX: 00007ffd5d16785e RSI: 000000002866cd36 RDI: 0000000000000002
[  150.722827] RBP: 0000000000000006 R08: 000000002866cd36 R09: 00007ffd5d16785e
[  150.723781] R10: 0000000000000004 R11: 0000000000000206 R12: 0000000000404d80
[  150.724650] R13: 00007ffd5d16784d R14: 00007ffd5d167238 R15: 000000000040411f
[  150.725447] Code: 83 c4 08 31 c0 5b 41 5c 41 5d 41 5e 41 5f 5d c3 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 85 ff 74 23 55 48 89 e5 53 48 89 fb <48> 8b 3f e8 06 21 c5 ff 48 8b 7b 08 e8 fd 20 c5 ff 48 89 df e8
[  150.727489] RIP: asymmetric_key_free_kids+0x12/0x30 RSP: ffffc90000353e58
[  150.728117] CR2: 0000000000000001
[  150.728430] ---[ end trace f7f8fe1da2d5ae8d ]---

Fixes: 4d8c0250b841 ("KEYS: Call ->free_preparse() even after ->preparse() returns an error")
Cc: stable@vger.kernel.org # 3.17+
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
7 years agoKEYS: fix dereferencing NULL payload with nonzero length
Eric Biggers [Thu, 8 Jun 2017 13:48:40 +0000 (14:48 +0100)]
KEYS: fix dereferencing NULL payload with nonzero length

sys_add_key() and the KEYCTL_UPDATE operation of sys_keyctl() allowed a
NULL payload with nonzero length to be passed to the key type's
->preparse(), ->instantiate(), and/or ->update() methods.  Various key
types including asymmetric, cifs.idmap, cifs.spnego, and pkcs7_test did
not handle this case, allowing an unprivileged user to trivially cause a
NULL pointer dereference (kernel oops) if one of these key types was
present.  Fix it by doing the copy_from_user() when 'plen' is nonzero
rather than when '_payload' is non-NULL, causing the syscall to fail
with EFAULT as expected when an invalid buffer is specified.

Cc: stable@vger.kernel.org # 2.6.10+
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
7 years agoKEYS: encrypted: use constant-time HMAC comparison
Eric Biggers [Thu, 8 Jun 2017 13:48:32 +0000 (14:48 +0100)]
KEYS: encrypted: use constant-time HMAC comparison

MACs should, in general, be compared using crypto_memneq() to prevent
timing attacks.

Cc: Mimi Zohar <zohar@linux.vnet.ibm.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
7 years agoKEYS: encrypted: fix race causing incorrect HMAC calculations
Eric Biggers [Thu, 8 Jun 2017 13:48:25 +0000 (14:48 +0100)]
KEYS: encrypted: fix race causing incorrect HMAC calculations

The encrypted-keys module was using a single global HMAC transform,
which could be rekeyed by multiple threads concurrently operating on
different keys, causing incorrect HMAC values to be calculated.  Fix
this by allocating a new HMAC transform whenever we need to calculate a
HMAC.  Also simplify things a bit by allocating the shash_desc's using
SHASH_DESC_ON_STACK() for both the HMAC and unkeyed hashes.

The following script reproduces the bug:

    keyctl new_session
    keyctl add user master "abcdefghijklmnop" @s
    for i in $(seq 2); do
        (
            set -e
            for j in $(seq 1000); do
                keyid=$(keyctl add encrypted desc$i "new user:master 25" @s)
                datablob="$(keyctl pipe $keyid)"
                keyctl unlink $keyid > /dev/null
                keyid=$(keyctl add encrypted desc$i "load $datablob" @s)
                keyctl unlink $keyid > /dev/null
            done
        ) &
    done

Output with bug:

    [  439.691094] encrypted_key: bad hmac (-22)
    add_key: Invalid argument
    add_key: Invalid argument

Cc: Mimi Zohar <zohar@linux.vnet.ibm.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
7 years agoKEYS: encrypted: fix buffer overread in valid_master_desc()
Eric Biggers [Thu, 8 Jun 2017 13:48:18 +0000 (14:48 +0100)]
KEYS: encrypted: fix buffer overread in valid_master_desc()

With the 'encrypted' key type it was possible for userspace to provide a
data blob ending with a master key description shorter than expected,
e.g. 'keyctl add encrypted desc "new x" @s'.  When validating such a
master key description, validate_master_desc() could read beyond the end
of the buffer.  Fix this by using strncmp() instead of memcmp().  [Also
clean up the code to deduplicate some logic.]

Cc: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
7 years agoKEYS: encrypted: avoid encrypting/decrypting stack buffers
Eric Biggers [Thu, 8 Jun 2017 13:48:10 +0000 (14:48 +0100)]
KEYS: encrypted: avoid encrypting/decrypting stack buffers

Since v4.9, the crypto API cannot (normally) be used to encrypt/decrypt
stack buffers because the stack may be virtually mapped.  Fix this for
the padding buffers in encrypted-keys by using ZERO_PAGE for the
encryption padding and by allocating a temporary heap buffer for the
decryption padding.

Tested with CONFIG_DEBUG_SG=y:
keyctl new_session
keyctl add user master "abcdefghijklmnop" @s
keyid=$(keyctl add encrypted desc "new user:master 25" @s)
datablob="$(keyctl pipe $keyid)"
keyctl unlink $keyid
keyid=$(keyctl add encrypted desc "load $datablob" @s)
datablob2="$(keyctl pipe $keyid)"
[ "$datablob" = "$datablob2" ] && echo "Success!"

Cc: Andy Lutomirski <luto@kernel.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Mimi Zohar <zohar@linux.vnet.ibm.com>
Cc: stable@vger.kernel.org # 4.9+
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
7 years agoKEYS: put keyring if install_session_keyring_to_cred() fails
Eric Biggers [Thu, 8 Jun 2017 13:48:03 +0000 (14:48 +0100)]
KEYS: put keyring if install_session_keyring_to_cred() fails

In join_session_keyring(), if install_session_keyring_to_cred() were to
fail, we would leak the keyring reference, just like in the bug fixed by
commit 23567fd052a9 ("KEYS: Fix keyring ref leak in
join_session_keyring()").  Fortunately this cannot happen currently, but
we really should be more careful.  Do this by adding and using a new
error label at which the keyring reference is dropped.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
7 years agoKEYS: Delete an error message for a failed memory allocation in get_derived_key()
Markus Elfring [Thu, 8 Jun 2017 13:47:56 +0000 (14:47 +0100)]
KEYS: Delete an error message for a failed memory allocation in get_derived_key()

Omit an extra message for a memory allocation failure in this function.

This issue was detected by using the Coccinelle software.

Link: http://events.linuxfoundation.org/sites/events/files/slides/LCJ16-Refactor_Strings-WSang_0.pdf
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
7 years agoX.509: Fix error code in x509_cert_parse()
Dan Carpenter [Thu, 8 Jun 2017 13:47:49 +0000 (14:47 +0100)]
X.509: Fix error code in x509_cert_parse()

We forgot to set the error code on this path so it could result in
returning NULL which leads to a NULL dereference.

Fixes: db6c43bd2132 ("crypto: KEYS: convert public key and digsig asym to the akcipher api")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
7 years agosecurity: use READ_ONCE instead of deprecated ACCESS_ONCE
Davidlohr Bueso [Thu, 8 Jun 2017 13:47:34 +0000 (14:47 +0100)]
security: use READ_ONCE instead of deprecated ACCESS_ONCE

With the new standardized functions, we can replace all ACCESS_ONCE()
calls across relevant security/keyrings/.

ACCESS_ONCE() does not work reliably on non-scalar types. For example
gcc 4.6 and 4.7 might remove the volatile tag for such accesses during
the SRA (scalar replacement of aggregates) step:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145

Update the new calls regardless of if it is a scalar type, this is
cleaner than having three alternatives.

Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
7 years agosecurity/keys: add CONFIG_KEYS_COMPAT to Kconfig
Bilal Amarni [Thu, 8 Jun 2017 13:47:26 +0000 (14:47 +0100)]
security/keys: add CONFIG_KEYS_COMPAT to Kconfig

CONFIG_KEYS_COMPAT is defined in arch-specific Kconfigs and is missing for
several 64-bit architectures : mips, parisc, tile.

At the moment and for those architectures, calling in 32-bit userspace the
keyctl syscall would return an ENOSYS error.

This patch moves the CONFIG_KEYS_COMPAT option to security/keys/Kconfig, to
make sure the compatibility wrapper is registered by default for any 64-bit
architecture as long as it is configured with CONFIG_COMPAT.

[DH: Modified to remove arm64 compat enablement also as requested by Eric
 Biggers]

Signed-off-by: Bilal Amarni <bilal.amarni@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
cc: Eric Biggers <ebiggers3@gmail.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
7 years agoMerge tag 'modules-for-v4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Thu, 8 Jun 2017 23:28:49 +0000 (16:28 -0700)]
Merge tag 'modules-for-v4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux

Pull module maintainer address change from Jessica Yu:
 "A single patch that advertises my email address change"

* tag 'modules-for-v4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
  MAINTAINERS: update email address for Jessica Yu

7 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek...
Linus Torvalds [Thu, 8 Jun 2017 17:50:04 +0000 (10:50 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk

Pull printk fix from Petr Mladek:
 "This reverts a fix added into 4.12-rc1. It caused the kernel log to be
  printed on another console when two consoles of the same type were
  defined, e.g. console=ttyS0 console=ttyS1.

  This configuration was never supported by kernel itself, but it
  started to make sense with systemd. In other words, the commit broke
  userspace"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk:
  Revert "printk: fix double printing with earlycon"

7 years agoMerge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Linus Torvalds [Thu, 8 Jun 2017 17:02:58 +0000 (10:02 -0700)]
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto fixes from Herbert Xu:
 "This fixes a couple of places in the crypto code that were doing
  interruptible sleeps dangerously. They have been converted to use
  non-interruptible sleeps.

  This also fixes a bug in asymmetric_keys where it would trigger a
  use-after-free if a request returned EBUSY due to a full device queue"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: gcm - wait for crypto op not signal safe
  crypto: drbg - wait for crypto op not signal safe
  crypto: asymmetric_keys - handle EBUSY due to backlog correctly

7 years agoRevert "printk: fix double printing with earlycon"
Petr Mladek [Thu, 8 Jun 2017 10:01:30 +0000 (12:01 +0200)]
Revert "printk: fix double printing with earlycon"

This reverts commit cf39bf58afdaabc0b86f141630fb3fd18190294e.

The commit regression to users that define both console=ttyS1
and console=ttyS0 on the command line, see
https://lkml.kernel.org/r/20170509082915.GA13236@bistromath.localdomain

The kernel log messages always appeared only on one serial port. It is
even documented in Documentation/admin-guide/serial-console.rst:

"Note that you can only define one console per device type (serial,
video)."

The above mentioned commit changed the order in which the command line
parameters are searched. As a result, the kernel log messages go to
the last mentioned ttyS* instead of the first one.

We long thought that using two console=ttyS* on the command line
did not make sense. But then we realized that console= parameters
were handled also by systemd, see
http://0pointer.de/blog/projects/serial-console.html

"By default systemd will instantiate one serial-getty@.service on
the main kernel console, if it is not a virtual terminal."

where

"[4] If multiple kernel consoles are used simultaneously, the main
console is the one listed first in /sys/class/tty/console/active,
which is the last one listed on the kernel command line."

This puts the original report into another light. The system is running
in qemu. The first serial port is used to store the messages into a file.
The second one is used to login to the system via a socket. It depends
on systemd and the historic kernel behavior.

By other words, systemd causes that it makes sense to define both
console=ttyS1 console=ttyS0 on the command line. The kernel fix
caused regression related to userspace (systemd) and need to be
reverted.

In addition, it went out that the fix helped only partially.
The messages still were duplicated when the boot console was
removed early by late_initcall(printk_late_init). Then the entire
log was replayed when the same console was registered as a normal one.

Link: 20170606160339.GC7604@pathway.suse.cz
Cc: Aleksey Makarov <aleksey.makarov@linaro.org>
Cc: Sabrina Dubroca <sd@queasysnail.net>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Peter Hurley <peter@hurleysoftware.com>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: Robin Murphy <robin.murphy@arm.com>,
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: "Nair, Jayachandran" <Jayachandran.Nair@cavium.com>
Cc: linux-serial@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Reported-by: Sabrina Dubroca <sd@queasysnail.net>
Acked-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
7 years agoMAINTAINERS: update email address for Jessica Yu
Jessica Yu [Thu, 8 Jun 2017 06:52:36 +0000 (23:52 -0700)]
MAINTAINERS: update email address for Jessica Yu

I will be traveling in the upcoming months and it'll be much easier for me
to access my kernel.org email rather than my work one. Change my email
address in the MAINTAINERS file from jeyu@redhat.com to jeyu@kernel.org.

Signed-off-by: Jessica Yu <jeyu@redhat.com>
7 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Tue, 6 Jun 2017 21:30:17 +0000 (14:30 -0700)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Pull networking fixes from David Miller:

 1) Made TCP congestion control documentation match current reality,
    from Anmol Sarma.

 2) Various build warning and failure fixes from Arnd Bergmann.

 3) Fix SKB list leak in ipv6_gso_segment().

 4) Use after free in ravb driver, from Eugeniu Rosca.

 5) Don't use udp_poll() in ping protocol driver, from Eric Dumazet.

 6) Don't crash in PCI error recovery of cxgb4 driver, from Guilherme
    Piccoli.

 7) _SRC_NAT_DONE_BIT needs to be cleared using atomics, from Liping
    Zhang.

 8) Use after free in vxlan deletion, from Mark Bloch.

 9) Fix ordering of NAPI poll enabled in ethoc driver, from Max
    Filippov.

10) Fix stmmac hangs with TSO, from Niklas Cassel.

11) Fix crash in CALIPSO ipv6, from Richard Haines.

12) Clear nh_flags properly on mpls link up. From Roopa Prabhu.

13) Fix regression in sk_err socket error queue handling, noticed by
    ping applications. From Soheil Hassas Yeganeh.

14) Update mlx4/mlx5 MAINTAINERS information.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (78 commits)
  net: stmmac: fix a broken u32 less than zero check
  net: stmmac: fix completely hung TX when using TSO
  net: ethoc: enable NAPI before poll may be scheduled
  net: bridge: fix a null pointer dereference in br_afspec
  ravb: Fix use-after-free on `ifconfig eth0 down`
  net/ipv6: Fix CALIPSO causing GPF with datagram support
  net: stmmac: ensure jumbo_frm error return is correctly checked for -ve value
  Revert "sit: reload iphdr in ipip6_rcv"
  i40e/i40evf: proper update of the page_offset field
  i40e: Fix state flags for bit set and clean operations of PF
  iwlwifi: fix host command memory leaks
  iwlwifi: fix min API version for 7265D, 3168, 8000 and 8265
  iwlwifi: mvm: clear new beacon command template struct
  iwlwifi: mvm: don't fail when removing a key from an inexisting sta
  iwlwifi: pcie: only use d0i3 in suspend/resume if system_pm is set to d0i3
  iwlwifi: mvm: fix firmware debug restart recording
  iwlwifi: tt: move ucode_loaded check under mutex
  iwlwifi: mvm: support ibss in dqa mode
  iwlwifi: mvm: Fix command queue number on d0i3 flow
  iwlwifi: mvm: rs: start using LQ command color
  ...

7 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Linus Torvalds [Tue, 6 Jun 2017 21:28:18 +0000 (14:28 -0700)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc

Pull sparc fixes from David Miller:

 1) Fix TLB context wrap races, from Pavel Tatashin.

 2) Cure some gcc-7 build issues.

 3) Handle invalid setup_hugepagesz command line values properly, from
    Liam R Howlett.

 4) Copy TSB using the correct address shift for the huge TSB, from Mike
    Kravetz.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc64: delete old wrap code
  sparc64: new context wrap
  sparc64: add per-cpu mm of secondary contexts
  sparc64: redefine first version
  sparc64: combine activate_mm and switch_mm
  sparc64: reset mm cpumask after wrap
  sparc/mm/hugepages: Fix setup_hugepagesz for invalid values.
  sparc: Machine description indices can vary
  sparc64: mm: fix copy_tsb to correctly copy huge page TSBs
  arch/sparc: support NR_CPUS = 4096
  sparc64: Add __multi3 for gcc 7.x and later.
  sparc64: Fix build warnings with gcc 7.
  arch/sparc: increase CONFIG_NODES_SHIFT on SPARC64 to 5

7 years agocompiler, clang: suppress warning for unused static inline functions
David Rientjes [Tue, 6 Jun 2017 20:36:24 +0000 (13:36 -0700)]
compiler, clang: suppress warning for unused static inline functions

GCC explicitly does not warn for unused static inline functions for
-Wunused-function.  The manual states:

Warn whenever a static function is declared but not defined or
a non-inline static function is unused.

Clang does warn for static inline functions that are unused.

It turns out that suppressing the warnings avoids potentially complex
#ifdef directives, which also reduces LOC.

Suppress the warning for clang.

Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
7 years agoMerge branch 'sparc64-context-wrap-fixes'
David S. Miller [Tue, 6 Jun 2017 20:45:48 +0000 (13:45 -0700)]
Merge branch 'sparc64-context-wrap-fixes'

Pavel Tatashin says:

====================
sparc64: context wrap fixes

This patch series contains fixes for context wrap: when we are out of
context ids, and need to get a new version.

It fixes memory corruption issues which happen when more than number of
context ids (currently set to 8K) number of processes are started
simultaneously, and processes can get a wrong context.

sparc64: new context wrap:
- contains explanation of new wrap method, and also explanation of races
  that it solves
sparc64: reset mm cpumask after wrap
- explains issue of not reseting cpu mask on a wrap
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosparc64: delete old wrap code
Pavel Tatashin [Wed, 31 May 2017 15:25:25 +0000 (11:25 -0400)]
sparc64: delete old wrap code

The old method that is using xcall and softint to get new context id is
deleted, as it is replaced by a method of using per_cpu_secondary_mm
without xcall to perform the context wrap.

Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
Reviewed-by: Bob Picco <bob.picco@oracle.com>
Reviewed-by: Steven Sistare <steven.sistare@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosparc64: new context wrap
Pavel Tatashin [Wed, 31 May 2017 15:25:24 +0000 (11:25 -0400)]
sparc64: new context wrap

The current wrap implementation has a race issue: it is called outside of
the ctx_alloc_lock, and also does not wait for all CPUs to complete the
wrap.  This means that a thread can get a new context with a new version
and another thread might still be running with the same context. The
problem is especially severe on CPUs with shared TLBs, like sun4v. I used
the following test to very quickly reproduce the problem:
- start over 8K processes (must be more than context IDs)
- write and read values at a  memory location in every process.

Very quickly memory corruptions start happening, and what we read back
does not equal what we wrote.

Several approaches were explored before settling on this one:

Approach 1:
Move smp_new_mmu_context_version() inside ctx_alloc_lock, and wait for
every process to complete the wrap. (Note: every CPU must WAIT before
leaving smp_new_mmu_context_version_client() until every one arrives).

This approach ends up with deadlocks, as some threads own locks which other
threads are waiting for, and they never receive softint until these threads
exit smp_new_mmu_context_version_client(). Since we do not allow the exit,
deadlock happens.

Approach 2:
Handle wrap right during mondo interrupt. Use etrap/rtrap to enter into
into C code, and issue new versions to every CPU.
This approach adds some overhead to runtime: in switch_mm() we must add
some checks to make sure that versions have not changed due to wrap while
we were loading the new secondary context. (could be protected by PSTATE_IE
but that degrades performance as on M7 and older CPUs as it takes 50 cycles
for each access). Also, we still need a global per-cpu array of MMs to know
where we need to load new contexts, otherwise we can change context to a
thread that is going way (if we received mondo between switch_mm() and
switch_to() time). Finally, there are some issues with window registers in
rtrap() when context IDs are changed during CPU mondo time.

The approach in this patch is the simplest and has almost no impact on
runtime.  We use the array with mm's where last secondary contexts were
loaded onto CPUs and bump their versions to the new generation without
changing context IDs. If a new process comes in to get a context ID, it
will go through get_new_mmu_context() because of version mismatch. But the
running processes do not need to be interrupted. And wrap is quicker as we
do not need to xcall and wait for everyone to receive and complete wrap.

Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
Reviewed-by: Bob Picco <bob.picco@oracle.com>
Reviewed-by: Steven Sistare <steven.sistare@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosparc64: add per-cpu mm of secondary contexts
Pavel Tatashin [Wed, 31 May 2017 15:25:23 +0000 (11:25 -0400)]
sparc64: add per-cpu mm of secondary contexts

The new wrap is going to use information from this array to figure out
mm's that currently have valid secondary contexts setup.

Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
Reviewed-by: Bob Picco <bob.picco@oracle.com>
Reviewed-by: Steven Sistare <steven.sistare@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosparc64: redefine first version
Pavel Tatashin [Wed, 31 May 2017 15:25:22 +0000 (11:25 -0400)]
sparc64: redefine first version

CTX_FIRST_VERSION defines the first context version, but also it defines
first context. This patch redefines it to only include the first context
version.

Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
Reviewed-by: Bob Picco <bob.picco@oracle.com>
Reviewed-by: Steven Sistare <steven.sistare@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosparc64: combine activate_mm and switch_mm
Pavel Tatashin [Wed, 31 May 2017 15:25:21 +0000 (11:25 -0400)]
sparc64: combine activate_mm and switch_mm

The only difference between these two functions is that in activate_mm we
unconditionally flush context. However, there is no need to keep this
difference after fixing a bug where cpumask was not reset on a wrap. So, in
this patch we combine these.

Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
Reviewed-by: Bob Picco <bob.picco@oracle.com>
Reviewed-by: Steven Sistare <steven.sistare@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosparc64: reset mm cpumask after wrap
Pavel Tatashin [Wed, 31 May 2017 15:25:20 +0000 (11:25 -0400)]
sparc64: reset mm cpumask after wrap

After a wrap (getting a new context version) a process must get a new
context id, which means that we would need to flush the context id from
the TLB before running for the first time with this ID on every CPU. But,
we use mm_cpumask to determine if this process has been running on this CPU
before, and this mask is not reset after a wrap. So, there are two possible
fixes for this issue:

1. Clear mm cpumask whenever mm gets a new context id
2. Unconditionally flush context every time process is running on a CPU

This patch implements the first solution

Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
Reviewed-by: Bob Picco <bob.picco@oracle.com>
Reviewed-by: Steven Sistare <steven.sistare@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosparc/mm/hugepages: Fix setup_hugepagesz for invalid values.
Liam R. Howlett [Tue, 30 May 2017 19:45:00 +0000 (15:45 -0400)]
sparc/mm/hugepages: Fix setup_hugepagesz for invalid values.

hugetlb_bad_size needs to be called on invalid values.  Also change the
pr_warn to a pr_err to better align with other platforms.

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosparc: Machine description indices can vary
James Clarke [Mon, 29 May 2017 19:17:56 +0000 (20:17 +0100)]
sparc: Machine description indices can vary

VIO devices were being looked up by their index in the machine
description node block, but this often varies over time as devices are
added and removed. Instead, store the ID and look up using the type,
config handle and ID.

Signed-off-by: James Clarke <jrtc27@jrtc27.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=112541
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosparc64: mm: fix copy_tsb to correctly copy huge page TSBs
Mike Kravetz [Fri, 2 Jun 2017 21:51:12 +0000 (14:51 -0700)]
sparc64: mm: fix copy_tsb to correctly copy huge page TSBs

When a TSB grows beyond its current capacity, a new TSB is allocated
and copy_tsb is called to copy entries from the old TSB to the new.
A hash shift based on page size is used to calculate the index of an
entry in the TSB.  copy_tsb has hard coded PAGE_SHIFT in these
calculations.  However, for huge page TSBs the value REAL_HPAGE_SHIFT
should be used.  As a result, when copy_tsb is called for a huge page
TSB the entries are placed at the incorrect index in the newly
allocated TSB.  When doing hardware table walk, the MMU does not
match these entries and we end up in the TSB miss handling code.
This code will then create and write an entry to the correct index
in the TSB.  We take a performance hit for the table walk miss and
recreation of these entries.

Pass a new parameter to copy_tsb that is the page size shift to be
used when copying the TSB.

Suggested-by: Anthony Yznaga <anthony.yznaga@oracle.com>
Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoarch/sparc: support NR_CPUS = 4096
Jane Chu [Tue, 6 Jun 2017 20:32:29 +0000 (14:32 -0600)]
arch/sparc: support NR_CPUS = 4096

Linux SPARC64 limits NR_CPUS to 4064 because init_cpu_send_mondo_info()
only allocates a single page for NR_CPUS mondo entries. Thus we cannot
use all 4096 CPUs on some SPARC platforms.

To fix, allocate (2^order) pages where order is set according to the size
of cpu_list for possible cpus. Since cpu_list_pa and cpu_mondo_block_pa
are not used in asm code, there are no imm13 offsets from the base PA
that will break because they can only reach one page.

Orabug: 25505750

Signed-off-by: Jane Chu <jane.chu@oracle.com>
Reviewed-by: Bob Picco <bob.picco@oracle.com>
Reviewed-by: Atish Patra <atish.patra@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: stmmac: fix a broken u32 less than zero check
Colin Ian King [Tue, 6 Jun 2017 13:10:49 +0000 (14:10 +0100)]
net: stmmac: fix a broken u32 less than zero check

The check that queue is less or equal to zero is always true
because queue is a u32; queue is decremented and will wrap around
and never go -ve. Fix this by making queue an int.

Detected by CoverityScan, CID#1428988 ("Unsigned compared against 0")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: stmmac: fix completely hung TX when using TSO
Niklas Cassel [Tue, 6 Jun 2017 07:25:00 +0000 (09:25 +0200)]
net: stmmac: fix completely hung TX when using TSO

stmmac_tso_allocator can fail to set the Last Descriptor bit
on a descriptor that actually was the last descriptor.

This happens when the buffer of the last descriptor ends
up having a size of exactly TSO_MAX_BUFF_SIZE.

When the IP eventually reaches the next last descriptor,
which actually has the bit set, the DMA will hang.

When the DMA hangs, we get a tx timeout, however,
since stmmac does not do a complete reset of the IP
in stmmac_tx_timeout, we end up in a state with
completely hung TX.

Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Acked-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: ethoc: enable NAPI before poll may be scheduled
Max Filippov [Tue, 6 Jun 2017 01:31:16 +0000 (18:31 -0700)]
net: ethoc: enable NAPI before poll may be scheduled

ethoc_reset enables device interrupts, ethoc_interrupt may schedule a
NAPI poll before NAPI is enabled in the ethoc_open, which results in
device being unable to send or receive anything until it's closed and
reopened. In case the device is flooded with ingress packets it may be
unable to recover at all.
Move napi_enable above ethoc_reset in the ethoc_open to fix that.

Fixes: a1702857724f ("net: Add support for the OpenCores 10/100 Mbps Ethernet MAC.")
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Tobias Klauser <tklauser@distanz.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: bridge: fix a null pointer dereference in br_afspec
Nikolay Aleksandrov [Mon, 5 Jun 2017 22:26:24 +0000 (01:26 +0300)]
net: bridge: fix a null pointer dereference in br_afspec

We might call br_afspec() with p == NULL which is a valid use case if
the action is on the bridge device itself, but the bridge tunnel code
dereferences the p pointer without checking, so check if p is null
first.

Reported-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Fixes: efa5356b0d97 ("bridge: per vlan dst_metadata netlink support")
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoravb: Fix use-after-free on `ifconfig eth0 down`
Eugeniu Rosca [Mon, 5 Jun 2017 22:08:10 +0000 (00:08 +0200)]
ravb: Fix use-after-free on `ifconfig eth0 down`

Commit a47b70ea86bd ("ravb: unmap descriptors when freeing rings") has
introduced the issue seen in [1] reproduced on H3ULCB board.

Fix this by relocating the RX skb ringbuffer free operation, so that
swiotlb page unmapping can be done first. Freeing of aligned TX buffers
is not relevant to the issue seen in [1]. Still, reposition TX free
calls as well, to have all kfree() operations performed consistently
_after_ dma_unmap_*()/dma_free_*().

[1] Console screenshot with the problem reproduced:

salvator-x login: root
root@salvator-x:~# ifconfig eth0 up
Micrel KSZ9031 Gigabit PHY e6800000.ethernet-ffffffff:00: \
       attached PHY driver [Micrel KSZ9031 Gigabit PHY]   \
       (mii_bus:phy_addr=e6800000.ethernet-ffffffff:00, irq=235)
IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
root@salvator-x:~#
root@salvator-x:~# ifconfig eth0 down

==================================================================
BUG: KASAN: use-after-free in swiotlb_tbl_unmap_single+0xc4/0x35c
Write of size 1538 at addr ffff8006d884f780 by task ifconfig/1649

CPU: 0 PID: 1649 Comm: ifconfig Not tainted 4.12.0-rc4-00004-g112eb07287d1 #32
Hardware name: Renesas H3ULCB board based on r8a7795 (DT)
Call trace:
[<ffff20000808f11c>] dump_backtrace+0x0/0x3a4
[<ffff20000808f4d4>] show_stack+0x14/0x1c
[<ffff20000865970c>] dump_stack+0xf8/0x150
[<ffff20000831f8b0>] print_address_description+0x7c/0x330
[<ffff200008320010>] kasan_report+0x2e0/0x2f4
[<ffff20000831eac0>] check_memory_region+0x20/0x14c
[<ffff20000831f054>] memcpy+0x48/0x68
[<ffff20000869ed50>] swiotlb_tbl_unmap_single+0xc4/0x35c
[<ffff20000869fcf4>] unmap_single+0x90/0xa4
[<ffff20000869fd14>] swiotlb_unmap_page+0xc/0x14
[<ffff2000080a2974>] __swiotlb_unmap_page+0xcc/0xe4
[<ffff2000088acdb8>] ravb_ring_free+0x514/0x870
[<ffff2000088b25dc>] ravb_close+0x288/0x36c
[<ffff200008aaf8c4>] __dev_close_many+0x14c/0x174
[<ffff200008aaf9b4>] __dev_close+0xc8/0x144
[<ffff200008ac2100>] __dev_change_flags+0xd8/0x194
[<ffff200008ac221c>] dev_change_flags+0x60/0xb0
[<ffff200008ba2dec>] devinet_ioctl+0x484/0x9d4
[<ffff200008ba7b78>] inet_ioctl+0x190/0x194
[<ffff200008a78c44>] sock_do_ioctl+0x78/0xa8
[<ffff200008a7a128>] sock_ioctl+0x110/0x3c4
[<ffff200008365a70>] vfs_ioctl+0x90/0xa0
[<ffff200008365dbc>] do_vfs_ioctl+0x148/0xc38
[<ffff2000083668f0>] SyS_ioctl+0x44/0x74
[<ffff200008083770>] el0_svc_naked+0x24/0x28

The buggy address belongs to the page:
page:ffff7e001b6213c0 count:0 mapcount:0 mapping:          (null) index:0x0
flags: 0x4000000000000000()
raw: 4000000000000000 0000000000000000 0000000000000000 00000000ffffffff
raw: 0000000000000000 ffff7e001b6213e0 0000000000000000 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8006d884f680: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff8006d884f700: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff8006d884f780: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                   ^
 ffff8006d884f800: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff8006d884f880: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================
Disabling lock debugging due to kernel taint
root@salvator-x:~#

Fixes: a47b70ea86bd ("ravb: unmap descriptors when freeing rings")
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet/ipv6: Fix CALIPSO causing GPF with datagram support
Richard Haines [Mon, 5 Jun 2017 15:44:40 +0000 (16:44 +0100)]
net/ipv6: Fix CALIPSO causing GPF with datagram support

When using CALIPSO with IPPROTO_UDP it is possible to trigger a GPF as the
IP header may have moved.

Also update the payload length after adding the CALIPSO option.

Signed-off-by: Richard Haines <richard_c_haines@btinternet.com>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: stmmac: ensure jumbo_frm error return is correctly checked for -ve value
Colin Ian King [Mon, 5 Jun 2017 09:04:52 +0000 (10:04 +0100)]
net: stmmac: ensure jumbo_frm error return is correctly checked for -ve value

The current comparison of entry < 0 will never be true since entry is an
unsigned integer. Make entry an int to ensure -ve error return values
from the call to jumbo_frm are correctly being caught.

Detected by CoverityScan, CID#1238760 ("Macro compares unsigned to 0")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge tag 'wireless-drivers-for-davem-2017-06-06' of git://git.kernel.org/pub/scm...
David S. Miller [Tue, 6 Jun 2017 16:53:20 +0000 (12:53 -0400)]
Merge tag 'wireless-drivers-for-davem-2017-06-06' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers

Kalle Valo says:

====================
wireless-drivers fixes for 4.12

It has been a slow start of cycle and this the first set of fixes for
4.12. Nothing really major here.

wcn36xx

* fix an issue with module reload

brcmfmac

* fix aligment regression on 64 bit systems

iwlwifi

* fixes for memory leaks, runtime PM, memory initialisation and other
  smaller problems

* fix IBSS on devices using DQA mode (7260 and up)

* fix the minimum firmware API requirement for 7265D, 3168, 8000 and
  8265
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge tag 'media/v4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...
Linus Torvalds [Tue, 6 Jun 2017 16:37:44 +0000 (09:37 -0700)]
Merge tag 'media/v4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:
 "Some bug fixes:

   - Don't fail build if atomisp has warnings

   - Some CEC Kconfig changes to allow it to be used by DRM without
     media dependencies

   - A race fix at RC initialization code

   - A driver fix at rainshadow-cec

  IMHO, the one that affects most people in this series is a build fix:
  if you try to build the Kernel with W=1 or using gcc7 and
  all[yes|mod]config, build will fail due to -Werror at atomisp
  makefiles"

* tag 'media/v4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] rc-core: race condition during ir_raw_event_register()
  [media] cec: drop MEDIA_CEC_DEBUG
  [media] cec: rename MEDIA_CEC_NOTIFIER to CEC_NOTIFIER
  [media] cec: select CEC_CORE instead of depend on it
  [media] rainshadow-cec: ensure exit_loop is intialized
  [media] atomisp: don't treat warnings as errors

7 years agoMerge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net...
David S. Miller [Tue, 6 Jun 2017 16:12:57 +0000 (12:12 -0400)]
Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue

Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2017-06-06

This series contains fixes to i40e and i40evf only.

Mauro S. M. Rodrigues fixes a flood in the kernel log which was introduced
in a previous commit because of a mistaken substitution of __I40E_VSI_DOWN
instead of __I40E_DOWN when testing the state of the PF.

Björn Töpel fixes an issue introduced in a previous commit where the
offset was incorrect and could lead to data corruption for architectures
using PAGE_SIZE larger than 8191.  Fixed the issue by updating the
page_offset correctly using the proper setting for truesize.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoRevert "sit: reload iphdr in ipip6_rcv"
David S. Miller [Tue, 6 Jun 2017 15:34:06 +0000 (11:34 -0400)]
Revert "sit: reload iphdr in ipip6_rcv"

This reverts commit b699d0035836f6712917a41e7ae58d84359b8ff9.

As per Eric Dumazet, the pskb_may_pull() is a NOP in this
particular case, so the 'iph' reload is unnecessary.

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoi40e/i40evf: proper update of the page_offset field
Björn Töpel [Mon, 15 May 2017 04:52:00 +0000 (06:52 +0200)]
i40e/i40evf: proper update of the page_offset field

In f8b45b74cc62 ("i40e/i40evf: Use build_skb to build frames")
i40e_build_skb updates the page_offset field with an incorrect offset,
which can lead to data corruption. This patch updates page_offset
correctly, by properly setting truesize.

Note that the bug only appears on architectures where PAGE_SIZE is
8192 or larger.

Fixes: f8b45b74cc62 ("i40e/i40evf: Use build_skb to build frames")
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Acked-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoi40e: Fix state flags for bit set and clean operations of PF
Mauro S. M. Rodrigues [Sat, 13 May 2017 02:26:56 +0000 (23:26 -0300)]
i40e: Fix state flags for bit set and clean operations of PF

Commit 0da36b9774cc ("i40e: use DECLARE_BITMAP for state fields")
introduced changes in the way i40e works with state flags converting
them to bitmaps using kernel bitmap API. This change introduced a
regression due to a mistaken substitution using __I40E_VSI_DOWN instead
of __I40E_DOWN when testing state of a PF at i40e_reset_subtask()
function. This caused a flood in the kernel log with the follow message:

[49.013] i40e 0002:01:00.0: bad reset request 0x00000020

Commit d19cb64b9222 ("i40e: separate PF and VSI state flags")
also introduced some misuse of the VSI and PF flags, so both could be
considered as the offenders.

This patch simply fixes the flags where it makes sense by changing
__I40E_VSI_DOWN to __I40E_DOWN.

Fixes: 0da36b9774cc ("i40e: use DECLARE_BITMAP for state fields")
Fixes: d19cb64b9222 ("i40e: separate PF and VSI state flags")
Reviewed-by: "Guilherme G. Piccoli" <gpiccoli@linux.vnet.ibm.com>
Signed-off-by: "Mauro S. M. Rodrigues" <maurosr@linux.vnet.ibm.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoMerge branch 'for-4.12-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj...
Linus Torvalds [Mon, 5 Jun 2017 22:37:03 +0000 (15:37 -0700)]
Merge branch 'for-4.12-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

Pull cgroup fixes from Tejun Heo:
 "Two cgroup fixes. One to address RCU delay of cpuset removal affecting
  userland visible behaviors. The other fixes a race condition between
  controller disable and cgroup removal"

* 'for-4.12-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cpuset: consider dying css as offline
  cgroup: Prevent kill_css() from being called more than once

7 years agoMerge branch 'for-4.12-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj...
Linus Torvalds [Mon, 5 Jun 2017 22:31:14 +0000 (15:31 -0700)]
Merge branch 'for-4.12-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata

Pull libata fixes from Tejun Heo:

 - Revert of sata_mv devm_ioremap_resource() conversion. It made init
   fail if there are overlapping resources which led to detection
   failures on some setups.

 - A workaround for an Acer laptop which sometimes reports corrupt port
   map.

 - Other non-critical fixes.

* 'for-4.12-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
  libata: fix error checking in in ata_parse_force_one()
  Revert "ata: sata_mv: Convert to devm_ioremap_resource()"
  ata: libahci: properly propagate return value of platform_get_irq()
  ata: sata_rcar: Handle return value of clk_prepare_enable
  ahci: Acer SA5-271 SSD Not Detected Fix

7 years agoMerge tag 'iwlwifi-for-kalle-2017-06-05' of git://git.kernel.org/pub/scm/linux/kernel...
Kalle Valo [Mon, 5 Jun 2017 19:21:25 +0000 (22:21 +0300)]
Merge tag 'iwlwifi-for-kalle-2017-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes

Fixes for 4.12:

* Some memory leaks;
* IBSS support;
* Some bugzilla bugs;
* Some runtime PM fixes;
* Rate-scaling issues;
* Some locking problems;

7 years agoiwlwifi: fix host command memory leaks
Shahar S Matityahu [Thu, 6 Apr 2017 10:35:38 +0000 (13:35 +0300)]
iwlwifi: fix host command memory leaks

Sending host command with CMD_WANT_SKB flag demands the release of the
response buffer with iwl_free_resp function.
The patch adds the memory release in all the relevant places

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
7 years agoiwlwifi: fix min API version for 7265D, 3168, 8000 and 8265
Luca Coelho [Tue, 25 Apr 2017 07:18:10 +0000 (10:18 +0300)]
iwlwifi: fix min API version for 7265D, 3168, 8000 and 8265

In a previous commit, we removed support for API versions earlier than
22 for these NICs.  By mistake, the *_UCODE_API_MIN definitions were
set to 17.  Fix that.

Fixes: 4b87e5af638b ("iwlwifi: remove support for fw older than -17 and -22")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
7 years agoiwlwifi: mvm: clear new beacon command template struct
Johannes Berg [Fri, 31 Mar 2017 08:47:35 +0000 (10:47 +0200)]
iwlwifi: mvm: clear new beacon command template struct

Clear the struct so that all reserved fields are zero when we
send the struct down to the device.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
7 years agoiwlwifi: mvm: don't fail when removing a key from an inexisting sta
Luca Coelho [Thu, 30 Mar 2017 09:04:47 +0000 (12:04 +0300)]
iwlwifi: mvm: don't fail when removing a key from an inexisting sta

The iwl_mvm_remove_sta_key() function handles removing a key when the
sta doesn't exist anymore.  Mistakenly, this was changed to return an
error while fixing another bug.

If the mvm_sta doesn't exist, we continue normally, but just don't try
to remove the igtk key.

Fixes: cd4d23c1ea9b ("iwlwifi: mvm: Fix removal of IGTK")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
7 years agoiwlwifi: pcie: only use d0i3 in suspend/resume if system_pm is set to d0i3
Luca Coelho [Fri, 24 Mar 2017 09:01:45 +0000 (11:01 +0200)]
iwlwifi: pcie: only use d0i3 in suspend/resume if system_pm is set to d0i3

We only need to handle d0i3 entry and exit during suspend resume if
system_pm is set to IWL_PLAT_PM_MODE_D0I3, otherwise d0i3 entry
failures will cause suspend to fail.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=194791

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
7 years agoiwlwifi: mvm: fix firmware debug restart recording
Emmanuel Grumbach [Wed, 29 Mar 2017 07:21:09 +0000 (10:21 +0300)]
iwlwifi: mvm: fix firmware debug restart recording

When we want to stop the recording of the firmware debug
and restart it later without reloading the firmware we
don't need to resend the configuration that comes with
host commands.
Sending those commands confused the hardware and led to
an NMI 0x66.

Change the flow as following:
* read the relevant registers (DBGC_IN_SAMPLE, DBGC_OUT_CTRL)
* clear those registers
* wait for the hardware to complete its write to the buffer
* get the data
* restore the value of those registers (to restart the
  recording)

For early start (where the configuration is already
compiled in the firmware), we don't need to set those
registers after the firmware has been loaded, but only
when we want to restart the recording without having
restarted the firmware.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
7 years agoiwlwifi: tt: move ucode_loaded check under mutex
Johannes Berg [Wed, 22 Mar 2017 21:00:10 +0000 (22:00 +0100)]
iwlwifi: tt: move ucode_loaded check under mutex

The ucode_loaded check should be under the mutex, since it can
otherwise change state after we looked at it and before we got
the mutex. Fix that.

Fixes: 5c89e7bc557e ("iwlwifi: mvm: add registration to cooling device")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
7 years agoiwlwifi: mvm: support ibss in dqa mode
Liad Kaufman [Tue, 21 Mar 2017 15:13:16 +0000 (17:13 +0200)]
iwlwifi: mvm: support ibss in dqa mode

Allow working IBSS also when working in DQA mode.
This is done by setting it to treat the queues the
same as a BSS AP treats the queues.

Fixes: 7948b87308a4 ("iwlwifi: mvm: enable dynamic queue allocation mode")
Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
7 years agoiwlwifi: mvm: Fix command queue number on d0i3 flow
Haim Dreyfuss [Thu, 16 Mar 2017 15:26:03 +0000 (17:26 +0200)]
iwlwifi: mvm: Fix command queue number on d0i3 flow

During d0i3 flow we flush all the queue except from the command queue.
Currently, in this flow the command queue is hard coded to 9.
In DQA the command queue number has changed from 9 to 0.
Fix that.

This fixes a problem in runtime PM resume flow.

Fixes: 097129c9e625 ("iwlwifi: mvm: move cmd queue to be #0 in dqa mode")
Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
7 years agoiwlwifi: mvm: rs: start using LQ command color
Gregory Greenman [Mon, 6 Mar 2017 09:15:41 +0000 (11:15 +0200)]
iwlwifi: mvm: rs: start using LQ command color

Up until now, the driver was comparing the rate reported by the FW and
the rate of the latest LQ command to avoid processing data belonging
to the old LQ command. Recently, FW changed the meaning of the initial
rate field in tx response and it holds the actual rate (which is not
necessarily the initial rate of LQ's rate table). Use instead LQ cmd
color to be able to filter out tx responses/BA notifications which
where sent during earlier LQ commands' time frame.

This fixes some throughput degradation in noisy environments.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
7 years agosparc64: Add __multi3 for gcc 7.x and later.
David S. Miller [Mon, 5 Jun 2017 18:28:57 +0000 (11:28 -0700)]
sparc64: Add __multi3 for gcc 7.x and later.

Reported-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm
Linus Torvalds [Mon, 5 Jun 2017 18:19:40 +0000 (11:19 -0700)]
Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm

Pull ARM fixes from Russell King:
 "Three fixes this time around:

   - Two fixes for noMMU, fixing the decompressor header layout, and
     preventing a build error with some configurations.

   - Fixing the hyp-stub updates that went in during the merge window
     for platforms that use MCPM"

* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: 8677/1: boot/compressed: fix decompressor header layout for v7-M
  ARM: 8676/1: NOMMU: provide pgprot_device() macro
  ARM: 8675/1: MCPM: ensure not to enter __hyp_soft_restart from loopback and cpu_power_down

7 years agonet/mlx4: Check if Granular QoS per VF has been enabled before updating QP qos_vport
Ido Shamay [Mon, 5 Jun 2017 07:44:56 +0000 (10:44 +0300)]
net/mlx4: Check if Granular QoS per VF has been enabled before updating QP qos_vport

The Granular QoS per VF feature must be enabled in FW before it can be
used.

Thus, the driver cannot modify a QP's qos_vport value (via the UPDATE_QP FW
command) if the feature has not been enabled -- the FW returns an error if
this is attempted.

Fixes: 08068cd5683f ("net/mlx4: Added qos_vport QP configuration in VST mode")
Signed-off-by: Ido Shamay <idos@mellanox.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: phy: fix kernel-doc warnings
Randy Dunlap [Mon, 5 Jun 2017 02:46:53 +0000 (19:46 -0700)]
net: phy: fix kernel-doc warnings

Fix kernel-doc warnings (typo) in drivers/net/phy/phy.c:

..//drivers/net/phy/phy.c:259: warning: No description found for parameter 'features'
..//drivers/net/phy/phy.c:259: warning: Excess function parameter 'feature' description in 'phy_lookup_setting'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agodevlink: fix potential memort leak
Haishuang Yan [Mon, 5 Jun 2017 00:57:21 +0000 (08:57 +0800)]
devlink: fix potential memort leak

We must free allocated skb when genlmsg_put() return fails.

Fixes: 1555d204e743 ("devlink: Support for pipeline debug (dpipe)")
Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: Update TCP congestion control documentation
Anmol Sarma [Sat, 3 Jun 2017 12:10:54 +0000 (17:40 +0530)]
net: Update TCP congestion control documentation

Update tcp.txt to fix mandatory congestion control ops and default
CCA selection. Also, fix comment in tcp.h for undo_cwnd.

Signed-off-by: Anmol Sarma <me@anmolsarma.in>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoARM: 8677/1: boot/compressed: fix decompressor header layout for v7-M
Ard Biesheuvel [Wed, 24 May 2017 14:31:57 +0000 (15:31 +0100)]
ARM: 8677/1: boot/compressed: fix decompressor header layout for v7-M

As reported by Patrice, the header layout of the decompressor is
incorrect when building for v7-M. In this case, the __nop macro
resolves to 'mov r0, r0', which is emitted as a narrow encoding,
resulting in the header data fields to end up at lower offsets than
required.

Given the variety of targets we need to support with the same code,
the startup sequence is a bit of a jumble, and uses instructions
and macros whose encoding widths cannot be specified (badr), or only
exist in a narrow encoding (bx)

So force the use of a wide encoding in __nop, and replace the start
sequence with a simple jump to the label marking the start of code,
preceded by a Thumb2 mode switch if required (using explicit wide
encodings where appropriate). The label itself can be moved to the
start of code [where it belongs] due to the larger range of branch
instructions as compared to adr instructions.

Reported-by: Patrice CHOTARD <patrice.chotard@st.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
7 years agoARM: 8676/1: NOMMU: provide pgprot_device() macro
Vladimir Murzin [Wed, 24 May 2017 09:30:18 +0000 (10:30 +0100)]
ARM: 8676/1: NOMMU: provide pgprot_device() macro

NOMMU build leads to the following error:

  CC      drivers/pci/mmap.o
drivers/pci/mmap.c: In function 'pci_mmap_resource_range':
drivers/pci/mmap.c:60:3: error: implicit declaration of function 'pgprot_device' [-Werror=implicit-function-declaration]
   vma->vm_page_prot = pgprot_device(vma->vm_page_prot);
   ^

cc1: some warnings being treated as errors
scripts/Makefile.build:302: recipe for target 'drivers/pci/mmap.o' failed
make[2]: *** [drivers/pci/mmap.o] Error 1
scripts/Makefile.build:561: recipe for target 'drivers/pci' failed
make[1]: *** [drivers/pci] Error 2
Makefile:1016: recipe for target 'drivers' failed
make: *** [drivers] Error 2

Fix it with support of pgprot_device() macro for NOMMU.

Fixes: 00d2904ffeac ("ARM/PCI: Use generic pci_mmap_resource_range()")
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
7 years agonet/mlx4: Fix the check in attaching steering rules
Talat Batheesh [Sun, 4 Jun 2017 11:30:07 +0000 (14:30 +0300)]
net/mlx4: Fix the check in attaching steering rules

Our previous patch (cited below) introduced a regression
for RAW Eth QPs.

Fix it by checking if the QP number provided by user-space
exists, hence allowing steering rules to be added for valid
QPs only.

Fixes: 89c557687a32 ("net/mlx4_en: Avoid adding steering rules with invalid ring")
Reported-by: Or Gerlitz <gerlitz.or@gmail.com>
Signed-off-by: Talat Batheesh <talatb@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Acked-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosit: reload iphdr in ipip6_rcv
Haishuang Yan [Sun, 4 Jun 2017 06:43:43 +0000 (14:43 +0800)]
sit: reload iphdr in ipip6_rcv

Since iptunnel_pull_header() can call pskb_may_pull(),
we must reload any pointer that was related to skb->head.

Fixes: a09a4c8dd1ec ("tunnels: Remove encapsulation offloads on decap")
Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: ping: do not abuse udp_poll()
Eric Dumazet [Sat, 3 Jun 2017 16:29:25 +0000 (09:29 -0700)]
net: ping: do not abuse udp_poll()

Alexander reported various KASAN messages triggered in recent kernels

The problem is that ping sockets should not use udp_poll() in the first
place, and recent changes in UDP stack finally exposed this old bug.

Fixes: c319b4d76b9e ("net: ipv4: add IPPROTO_ICMP socket kind")
Fixes: 6d0bfe226116 ("net: ipv6: Add IPv6 support to the ping socket.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Sasha Levin <alexander.levin@verizon.com>
Cc: Solar Designer <solar@openwall.com>
Cc: Vasiliy Kulikov <segoon@openwall.com>
Cc: Lorenzo Colitti <lorenzo@google.com>
Acked-By: Lorenzo Colitti <lorenzo@google.com>
Tested-By: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: Fix stale cpu_switch reference after unbind then bind
Florian Fainelli [Sat, 3 Jun 2017 05:05:23 +0000 (22:05 -0700)]
net: dsa: Fix stale cpu_switch reference after unbind then bind

Commit 9520ed8fb841 ("net: dsa: use cpu_switch instead of ds[0]")
replaced the use of dst->ds[0] with dst->cpu_switch since that is
functionally equivalent, however, we can now run into an use after free
scenario after unbinding then rebinding the switch driver.

The use after free happens because we do correctly initialize
dst->cpu_switch the first time we probe in dsa_cpu_parse(), then we
unbind the driver: dsa_dst_unapply() is called, and we rebind again.
dst->cpu_switch now points to a freed "ds" structure, and so when we
finally dereference it in dsa_cpu_port_ethtool_setup(), we oops.

To fix this, simply set dst->cpu_switch to NULL in dsa_dst_unapply()
which guarantees that we always correctly re-assign dst->cpu_switch in
dsa_cpu_parse().

Fixes: 9520ed8fb841 ("net: dsa: use cpu_switch instead of ds[0]")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoipv6: Fix leak in ipv6_gso_segment().
David S. Miller [Mon, 5 Jun 2017 01:41:10 +0000 (21:41 -0400)]
ipv6: Fix leak in ipv6_gso_segment().

If ip6_find_1stfragopt() fails and we return an error we have to free
up 'segs' because nobody else is going to.

Fixes: 2423496af35d ("ipv6: Prevent overrun when parsing v6 header options")
Reported-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agogeneve: fix needed_headroom and max_mtu for collect_metadata
Eric Garver [Fri, 2 Jun 2017 18:54:10 +0000 (14:54 -0400)]
geneve: fix needed_headroom and max_mtu for collect_metadata

Since commit 9b4437a5b870 ("geneve: Unify LWT and netdev handling.")
when using COLLECT_METADATA geneve devices are created with too small of
a needed_headroom and too large of a max_mtu. This is because
ip_tunnel_info_af() is not valid with the device level info when using
COLLECT_METADATA and we mistakenly fall into the IPv4 case.

For COLLECT_METADATA, always use the worst case of ipv6 since both
sockets are created.

Fixes: 9b4437a5b870 ("geneve: Unify LWT and netdev handling.")
Signed-off-by: Eric Garver <e@erig.me>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosock: reset sk_err when the error queue is empty
Soheil Hassas Yeganeh [Fri, 2 Jun 2017 16:38:22 +0000 (12:38 -0400)]
sock: reset sk_err when the error queue is empty

Prior to f5f99309fa74 (sock: do not set sk_err in
sock_dequeue_err_skb), sk_err was reset to the error of
the skb on the head of the error queue.

Applications, most notably ping, are relying on this
behavior to reset sk_err for ICMP packets.

Set sk_err to the ICMP error when there is an ICMP packet
at the head of the error queue.

Fixes: f5f99309fa74 (sock: do not set sk_err in sock_dequeue_err_skb)
Reported-by: Cyril Hrubis <chrubis@suse.cz>
Tested-by: Cyril Hrubis <chrubis@suse.cz>
Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoamd-xgbe: use PAGE_ALLOC_COSTLY_ORDER in xgbe_map_rx_buffer
Michal Hocko [Fri, 2 Jun 2017 15:54:08 +0000 (17:54 +0200)]
amd-xgbe: use PAGE_ALLOC_COSTLY_ORDER in xgbe_map_rx_buffer

xgbe_map_rx_buffer is rather confused about what PAGE_ALLOC_COSTLY_ORDER
means. It uses PAGE_ALLOC_COSTLY_ORDER-1 assuming that
PAGE_ALLOC_COSTLY_ORDER is the first costly order which is not the case
actually because orders larger than that are costly. And even that
applies only to sleeping allocations which is not the case here. We
simply do not perform any costly operations like reclaim or compaction
for those. Simplify the code by dropping the order calculation and use
PAGE_ALLOC_COSTLY_ORDER directly.

Signed-off-by: Michal Hocko <mhocko@suse.com>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoip6_tunnel: fix traffic class routing for tunnels
Liam McBirnie [Thu, 1 Jun 2017 05:36:01 +0000 (15:36 +1000)]
ip6_tunnel: fix traffic class routing for tunnels

ip6_route_output() requires that the flowlabel contains the traffic
class for policy routing.

Commit 0e9a709560db ("ip6_tunnel, ip6_gre: fix setting of DSCP on
encapsulated packets") removed the code which previously added the
traffic class to the flowlabel.

The traffic class is added here because only route lookup needs the
flowlabel to contain the traffic class.

Fixes: 0e9a709560db ("ip6_tunnel, ip6_gre: fix setting of DSCP on encapsulated packets")
Signed-off-by: Liam McBirnie <liam.mcbirnie@boeing.com>
Acked-by: Peter Dawson <peter.a.dawson@boeing.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoLinux 4.12-rc4
Linus Torvalds [Sun, 4 Jun 2017 23:47:43 +0000 (16:47 -0700)]
Linux 4.12-rc4

7 years agofs/ufs: Set UFS default maximum bytes per file
Richard Narron [Sun, 4 Jun 2017 23:23:18 +0000 (16:23 -0700)]
fs/ufs: Set UFS default maximum bytes per file

This fixes a problem with reading files larger than 2GB from a UFS-2
file system:

    https://bugzilla.kernel.org/show_bug.cgi?id=195721

The incorrect UFS s_maxsize limit became a problem as of commit
c2a9737f45e2 ("vfs,mm: fix a dead loop in truncate_inode_pages_range()")
which started using s_maxbytes to avoid a page index overflow in
do_generic_file_read().

That caused files to be truncated on UFS-2 file systems because the
default maximum file size is 2GB (MAX_NON_LFS) and UFS didn't update it.

Here I simply increase the default to a common value used by other file
systems.

Signed-off-by: Richard Narron <comet.berkeley@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Will B <will.brokenbourgh2877@gmail.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: <stable@vger.kernel.org> # v4.9 and backports of c2a9737f45e2
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
7 years agonet: qcom/emac: do not use hardware mdio automatic polling
Timur Tabi [Thu, 1 Jun 2017 21:08:13 +0000 (16:08 -0500)]
net: qcom/emac: do not use hardware mdio automatic polling

Use software polling (PHY_POLL) to check for link state changes instead
of relying on the EMAC's hardware polling feature.  Some PHY drivers
are unable to get a functioning link because the HW polling is not
robust enough.

The EMAC is able to poll the PHY on the MDIO bus looking for link state
changes (via the Link Status bit in the Status Register at address 0x1).
When the link state changes, the EMAC triggers an interrupt and tells the
driver what the new state is.  The feature eliminates the need for
software to poll the MDIO bus.

Unfortunately, this feature is incompatible with phylib, because it
ignores everything that the PHY core and PHY drivers are trying to do.
In particular:

1. It assumes a compatible register set, so PHYs with different registers
   may not work.

2. It doesn't allow for hardware errata that have work-arounds implemented
   in the PHY driver.

3. It doesn't support multiple register pages. If the PHY core switches
   the register set to another page, the EMAC won't know the page has
   changed and will still attempt to read the same PHY register.

4. It only checks the copper side of the link, not the SGMII side.  Some
   PHY drivers (e.g. at803x) may also check the SGMII side, and
   report the link as not ready during autonegotiation if the SGMII link
   is still down.  Phylib then waits for another interrupt to query
   the PHY again, but the EMAC won't send another interrupt because it
   thinks the link is up.

Cc: stable@vger.kernel.org # 4.11.x
Tested-by: Manoj Iyer <manoj.iyer@canonical.com>
Signed-off-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge tag 'nfs-for-4.12-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Linus Torvalds [Sun, 4 Jun 2017 18:56:53 +0000 (11:56 -0700)]
Merge tag 'nfs-for-4.12-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client bugfixes from Trond Myklebust:
 "Bugfixes include:

   - Fix a typo in commit e092693443b ("NFS append COMMIT after
     synchronous COPY") that breaks copy offload

   - Fix the connect error propagation in xs_tcp_setup_socket()

   - Fix a lock leak in nfs40_walk_client_list

   - Verify that pNFS requests lie within the offset range of the layout
     segment"

* tag 'nfs-for-4.12-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  nfs: Mark unnecessarily extern functions as static
  SUNRPC: ensure correct error is reported by xs_tcp_setup_socket()
  NFSv4.0: Fix a lock leak in nfs40_walk_client_list
  pnfs: Fix the check for requests in range of layout segment
  xprtrdma: Delete an error message for a failed memory allocation in xprt_rdma_bc_setup()
  pNFS/flexfiles: missing error code in ff_layout_alloc_lseg()
  NFS fix COMMIT after COPY

7 years agoMerge tag 'tty-4.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Linus Torvalds [Sun, 4 Jun 2017 18:41:41 +0000 (11:41 -0700)]
Merge tag 'tty-4.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty fix from Greg KH:
 "Here is a single tty core fix for 4.12-rc4. It reverts a patch that a
  lot of people reported as causing lockdep and other warnings.

  Right after I reverted this in my tree, it seems like another
  "correct" fix might have shown up, but it's too late in the release
  cycle to be messing with tty core locking, so let's just revert this
  for now to go back how things always have been and try it again for
  4.13.

  This has not been in linux-next as I only reverted it a few hours ago"

* tag 'tty-4.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  Revert "tty: fix port buffer locking"

7 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Linus Torvalds [Sun, 4 Jun 2017 18:37:42 +0000 (11:37 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

Pull input subsystem fixes from Dmitry Torokhov:

 - a couple of regression fixes in synaptics and axp20x-pek drivers

 - try to ease transition from PS/2 to RMI for Synaptics touchpad users
   by ensuring we do not try to activate RMI mode when RMI SMBus support
   is not enabled, and nag users a bit to enable it

 - plus a couple of other changes that seemed worthwhile for this
   release

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: axp20x-pek - switch to acpi_dev_present and check for ACPI0011 too
  Input: axp20x-pek - only check for "INTCFD9" ACPI device on Cherry Trail
  Input: tm2-touchkey - use LEN_ON as boolean value instead of LED_FULL
  Input: synaptics - tell users to report when they should be using rmi-smbus
  Input: synaptics - warn the users when there is a better mode
  Input: synaptics - keep PS/2 around when RMI4_SMB is not enabled
  Input: synaptics - clear device info before filling in
  Input: silead - disable interrupt during suspend

7 years agoMerge tag 'rtc-4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni...
Linus Torvalds [Sun, 4 Jun 2017 18:29:32 +0000 (11:29 -0700)]
Merge tag 'rtc-4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC fixlet from Alexandre Belloni:
 "A single patch, not really a fix but I don't think there is any reason
  to delay it.

  Change the mailing list address"

* tag 'rtc-4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  MAINTAINERS: update RTC mailing list

7 years ago[media] rc-core: race condition during ir_raw_event_register()
Sean Young [Wed, 24 May 2017 09:24:51 +0000 (06:24 -0300)]
[media] rc-core: race condition during ir_raw_event_register()

A rc device can call ir_raw_event_handle() after rc_allocate_device(),
but before rc_register_device() has completed. This is racey because
rcdev->raw is set before rcdev->raw->thread has a valid value.

Cc: stable@kernel.org
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cec: drop MEDIA_CEC_DEBUG
Hans Verkuil [Sun, 28 May 2017 08:52:16 +0000 (05:52 -0300)]
[media] cec: drop MEDIA_CEC_DEBUG

Just depend on DEBUG_FS, no need to invent a new kernel config.
Especially since CEC can be enabled by drm without enabling
MEDIA_SUPPORT.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cec: rename MEDIA_CEC_NOTIFIER to CEC_NOTIFIER
Hans Verkuil [Sun, 28 May 2017 08:58:04 +0000 (05:58 -0300)]
[media] cec: rename MEDIA_CEC_NOTIFIER to CEC_NOTIFIER

This config option is strictly speaking independent of the
media subsystem since it can be used by drm as well.

Besides, it looks odd when drivers select CEC_CORE and
MEDIA_CEC_NOTIFIER, that's inconsistent naming.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cec: select CEC_CORE instead of depend on it
Hans Verkuil [Sun, 28 May 2017 08:48:37 +0000 (05:48 -0300)]
[media] cec: select CEC_CORE instead of depend on it

The CEC framework is used by both drm and media. That makes it tricky
to get the dependencies right.

This patch moves the CEC_CORE and MEDIA_CEC_NOTIFIER config options
out of the media menu and instead drivers that want to use CEC should
select CEC_CORE and MEDIA_CEC_NOTIFIER (if needed).

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] rainshadow-cec: ensure exit_loop is intialized
Colin Ian King [Fri, 19 May 2017 17:45:15 +0000 (14:45 -0300)]
[media] rainshadow-cec: ensure exit_loop is intialized

exit_loop is not being initialized, so it contains garbage. Ensure it is
initialized to false.

Detected by CoverityScan, CID#1436409 ("Uninitialized scalar variable")

Fixes: ea6a69defd3311 ("[media] rainshadow-cec: avoid -Wmaybe-uninitialized warning")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] atomisp: don't treat warnings as errors
Mauro Carvalho Chehab [Thu, 18 May 2017 08:40:18 +0000 (05:40 -0300)]
[media] atomisp: don't treat warnings as errors

Several atomisp files use:
 ccflags-y += -Werror

As, on media, our usual procedure is to use W=1, and atomisp
has *a lot* of warnings with such flag enabled,like:

./drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/system_local.h:62:26: warning: 'DDR_BASE' defined but not used [-Wunused-const-variable=]

At the end, it causes our build to fail, impacting our workflow.

So, remove this crap. If one wants to force -Werror, he
can still build with it enabled by passing a parameter to
make.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Sun, 4 Jun 2017 18:15:43 +0000 (11:15 -0700)]
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is nine fixes, seven of which are for the qedi driver (new as of
  4.10) the other two are a use after free in the cxgbi drivers and a
  potential NULL dereference in the rdac device handler"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: libcxgbi: fix skb use after free
  scsi: qedi: Fix endpoint NULL panic during recovery.
  scsi: qedi: set max_fin_rt default value
  scsi: qedi: Set firmware tcp msl timer value.
  scsi: qedi: Fix endpoint NULL panic in qedi_set_path.
  scsi: qedi: Set dma_boundary to 0xfff.
  scsi: qedi: Correctly set firmware max supported BDs.
  scsi: qedi: Fix bad pte call trace when iscsiuio is stopped.
  scsi: scsi_dh_rdac: Use ctlr directly in rdac_failover_get()

7 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Linus Torvalds [Sun, 4 Jun 2017 17:41:32 +0000 (10:41 -0700)]
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

Pull rdma fixes from Doug Ledford:
 "For the most part this is just a minor -rc cycle for the rdma
  subsystem. Even given that this is all of the -rc patches since the
  merge window closed, it's still only about 25 patches:

   - Multiple i40iw, nes, iw_cxgb4, hfi1, qib, mlx4, mlx5 fixes

   - A few upper layer protocol fixes (IPoIB, iSER, SRP)

   - A modest number of core fixes"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (26 commits)
  RDMA/SA: Fix kernel panic in CMA request handler flow
  RDMA/umem: Fix missing mmap_sem in get umem ODP call
  RDMA/core: not to set page dirty bit if it's already set.
  RDMA/uverbs: Declare local function static and add brackets to sizeof
  RDMA/netlink: Reduce exposure of RDMA netlink functions
  RDMA/srp: Fix NULL deref at srp_destroy_qp()
  RDMA/IPoIB: Limit the ipoib_dev_uninit_default scope
  RDMA/IPoIB: Replace netdev_priv with ipoib_priv for ipoib_get_link_ksettings
  RDMA/qedr: add null check before pointer dereference
  RDMA/mlx5: set UMR wqe fence according to HCA cap
  net/mlx5: Define interface bits for fencing UMR wqe
  RDMA/mlx4: Fix MAD tunneling when SRIOV is enabled
  RDMA/qib,hfi1: Fix MR reference count leak on write with immediate
  RDMA/hfi1: Defer setting VL15 credits to link-up interrupt
  RDMA/hfi1: change PCI bar addr assignments to Linux API functions
  RDMA/hfi1: fix array termination by appending NULL to attr array
  RDMA/iw_cxgb4: fix the calculation of ipv6 header size
  RDMA/iw_cxgb4: calculate t4_eq_status_entries properly
  RDMA/iw_cxgb4: Avoid touch after free error in ARP failure handlers
  RDMA/nes: ACK MPA Reply frame
  ...

7 years agoRevert "tty: fix port buffer locking"
Greg Kroah-Hartman [Sun, 4 Jun 2017 08:23:25 +0000 (10:23 +0200)]
Revert "tty: fix port buffer locking"

This reverts commit 925bb1ce47f429f69aad35876df7ecd8c53deb7e.

It causes lots of warnings and problems so for now, let's just revert
it.

Reported-by: <valdis.kletnieks@vt.edu>
Reported-by: Russell King <linux@armlinux.org.uk>
Reported-by: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reported-by: Jiri Slaby <jslaby@suse.cz>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agonfs: Mark unnecessarily extern functions as static
Jan Kara [Tue, 16 May 2017 10:18:11 +0000 (12:18 +0200)]
nfs: Mark unnecessarily extern functions as static

nfs_initialise_sb() and nfs_clone_super() are declared as extern even
though they are used only in fs/nfs/super.c. Mark them as static.

Also remove explicit 'inline' directive from nfs_initialise_sb() and
leave it upto compiler to decide whether inlining is worth it.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
7 years agoMerge tag 'hwmon-for-linus-v4.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 3 Jun 2017 15:45:03 +0000 (08:45 -0700)]
Merge tag 'hwmon-for-linus-v4.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:
 "A couple of patches for the aspeed pwm fan driver"

* tag 'hwmon-for-linus-v4.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (aspeed-pwm-tacho) make fan/pwm names start with index 1
  hwmon: (aspeed-pwm-tacho) Call of_node_put() on a node not claimed
  hwmon: (aspeed-pwm-tacho) On read failure return -ETIMEDOUT
  hwmon: (aspeed-pwm-tacho) Select REGMAP

7 years agoMerge tag 'for-linus-20170602' of git://git.infradead.org/linux-mtd
Linus Torvalds [Sat, 3 Jun 2017 15:42:30 +0000 (08:42 -0700)]
Merge tag 'for-linus-20170602' of git://git.infradead.org/linux-mtd

Pull MTD fixes from Brian Norris:
 "NAND updates from Boris:

  tango fixes:
   - Add missing MODULE_DEVICE_TABLE() in tango_nand.c
   - Update the number of corrected bitflips

  core fixes:
   - Fix a long standing memory leak in nand_scan_tail()
   - Fix several bugs introduced by the per-vendor init/detection
     infrastructure (introduced in 4.12)
   - Add a static specifier to nand_ooblayout_lp_hamming_ops definition"

* tag 'for-linus-20170602' of git://git.infradead.org/linux-mtd:
  mtd: nand: make nand_ooblayout_lp_hamming_ops static
  mtd: nand: tango: Update ecc_stats.corrected
  mtd: nand: tango: Export OF device ID table as module aliases
  mtd: nand: samsung: warn about un-parseable ECC info
  mtd: nand: free vendor-specific resources in init failure paths
  mtd: nand: drop unneeded module.h include
  mtd: nand: don't leak buffers when ->scan_bbt() fails

7 years agohwmon: (aspeed-pwm-tacho) make fan/pwm names start with index 1
Stefan Schaeckeler [Fri, 2 Jun 2017 19:43:28 +0000 (12:43 -0700)]
hwmon: (aspeed-pwm-tacho) make fan/pwm names start with index 1

Make fan and pwm names in sysfs start with index 1 in accordance to
Documentation/hwmon/sysfs-interface conventions.

Current implementation starts with index 0, making tools such as
sensors(1) skip the first fan.

Signed-off-by: Stefan Schaeckeler <sschaeck@cisco.com>
Fixes: 2d7a548a3eff ("drivers: hwmon: Support for ASPEED PWM/Fan tach")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
7 years agohwmon: (aspeed-pwm-tacho) Call of_node_put() on a node not claimed
Stefan Schaeckeler [Fri, 2 Jun 2017 19:42:08 +0000 (12:42 -0700)]
hwmon: (aspeed-pwm-tacho) Call of_node_put() on a node not claimed

Call of_node_put() on a node claimed with of_node_get() or by any other
means such as for_each_child_of_node().

Signed-off-by: Stefan Schaeckeler <sschaeck@cisco.com>
Fixes: 2d7a548a3eff ("drivers: hwmon: Support for ASPEED PWM/Fan tach")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
7 years agoInput: axp20x-pek - switch to acpi_dev_present and check for ACPI0011 too
Hans de Goede [Sat, 3 Jun 2017 00:50:22 +0000 (17:50 -0700)]
Input: axp20x-pek - switch to acpi_dev_present and check for ACPI0011 too

acpi_dev_found checks that there is a matching ACPI node, but it
may be disabled (_STA method returns 0) in which case the
soc_button_array driver will not bind to it and axp20x-pek should
handle the power-button.

This commit switches from acpi_dev_found to acpi_dev_present to
avoid not registering an input-dev for the powerbutton when there
is a disabled PNP0C40 device.

The ACPI-6.0 standard defines a standard gpio button device using
the ACPI0011 HID replacing the custom PNP0C40 gpio device, many
newer devices define both PNP0C40 and ACPI0011 devices enabling one
or the other depending on whether the BIOS thinks it is going to boot
Android or Windows.

This commit adds a check for the ACPI0011 device, so that if
either device is present *and* enabled we don't register an input-dev
for the powerbutton.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>