Kees Cook [Wed, 1 Dec 2021 17:32:34 +0000 (09:32 -0800)]
libertas_tf: Add missing __packed annotations
The earlier __packed annotations added in commit d71038c05970 ("libertas:
Fix alignment issues in libertas core") were not duplicated when
libertas_af was added in commit 7670e62c7ed6 ("libertas_tf: header file"),
even though they share several structure definitions. Add the missing
annotations which commit 642a57475b30 ("libertas_tf: Use struct_group()
for memcpy() region") exposed. Quoting the prior libertas fix: "Data
structures that come over the wire from the WLAN firmware must be
packed."
Kees Cook [Wed, 1 Dec 2021 17:32:33 +0000 (09:32 -0800)]
libertas: Add missing __packed annotation with struct_group()
Build testing of the newly added struct_group() usage missed smaller
architecture width tests for changes to pahole output. Add the missed
__packed annotation with struct_group() usage in a __packed struct.
Brian Norris [Tue, 30 Nov 2021 00:47:34 +0000 (16:47 -0800)]
mwifiex: Fix possible ABBA deadlock
Quoting Jia-Ju Bai <baijiaju1990@gmail.com>:
mwifiex_dequeue_tx_packet()
spin_lock_bh(&priv->wmm.ra_list_spinlock); --> Line 1432 (Lock A)
mwifiex_send_addba()
spin_lock_bh(&priv->sta_list_spinlock); --> Line 608 (Lock B)
mwifiex_process_sta_tx_pause()
spin_lock_bh(&priv->sta_list_spinlock); --> Line 398 (Lock B)
mwifiex_update_ralist_tx_pause()
spin_lock_bh(&priv->wmm.ra_list_spinlock); --> Line 941 (Lock A)
Similar report for mwifiex_process_uap_tx_pause().
While the locking expectations in this driver are a bit unclear, the
Fixed commit only intended to protect the sta_ptr, so we can drop the
lock as soon as we're done with it.
IIUC, this deadlock cannot actually happen, because command event
processing (which calls mwifiex_process_sta_tx_pause()) is
sequentialized with TX packet processing (e.g.,
mwifiex_dequeue_tx_packet()) via the main loop (mwifiex_main_process()).
But it's good not to leave this potential issue lurking.
Ping-Ke Shih [Wed, 1 Dec 2021 09:38:16 +0000 (17:38 +0800)]
rtw89: don't kick off TX DMA if failed to write skb
This is found by Smatch static checker warning:
drivers/net/wireless/realtek/rtw89/mac80211.c:31 rtw89_ops_tx()
error: uninitialized symbol 'qsel'.
The warning is because 'qsel' isn't filled by rtw89_core_tx_write() due to
failed to write. The way to fix it is to avoid kicking off TX DMA, so add
'return' to the failure case.
Zong-Zhe Yang [Wed, 1 Dec 2021 08:09:01 +0000 (16:09 +0800)]
rtw89: remove cch_by_bw which is not used
Originally, cch_by_bw recorded center channels of each available
bandwidths under current bandwidth. And the plan was to iterate
cch_by_bw as parameters to query other configurations. However,
we have not used it for the time being. Keeping it will disturb
the follow-up things, such as bandwidth 160 MHz, so we remove it
for now. If it's really needed at some point, we will redesign it.
Ping-Ke Shih [Wed, 1 Dec 2021 08:06:06 +0000 (16:06 +0800)]
rtw89: fix sending wrong rtwsta->mac_id to firmware to fill address CAM
With wrong rtwsta->mac_id, it can't send out ack properly when we receive
assoc response occasionally. Then, it failed to connect an AP.
The cause is that we store 'sta' and use it somewhere. To correct this,
remove the variable and use mac_id in drv_priv of 'sta' or 'vif' passed
by mac80211.
Zong-Zhe Yang [Mon, 29 Nov 2021 02:06:26 +0000 (10:06 +0800)]
rtw88: refine tx_pwr_tbl debugfs to show channel and bandwidth
Show channel and bandwidth in debugfs tx_pwr_tbl to make it easier
to understand which tx power table is shown currently, and to reduce
additional checks through other ways.
Yan-Hsuan Chuang [Mon, 29 Nov 2021 02:05:06 +0000 (10:05 +0800)]
rtw88: add debugfs to fix tx rate
It is useful to fix the bit rate of TX packets. For example, if
someone is measuring the TX power, or debugging with the issues
of the TX throughput on the field.
To set the value of fixed rate, one should input corresponding
desc rate index (ex, 0x0b for DESC_RATE54M to fix at 54 Mbps).
Set a value larger than DESC_RATE_MAX will disable fix rate, so
the rate adaptive mechanism can resume to work.
Example,
To fix rate at MCS 1:
echo 0x0d > /sys/kernel/debug/ieee80211/phy0/rtw88/fix_rate
To not to fix rate:
echo 0xff > /sys/kernel/debug/ieee80211/phy0/rtw88/fix_rate
To know which rate was fixed at:
cat /sys/kernel/debug/ieee80211/phy0/rtw88/fix_rate
Po Hao Huang [Thu, 11 Nov 2021 02:37:06 +0000 (10:37 +0800)]
rtw89: fix incorrect channel info during scan
We used to fill in rx skbs' frequency field by mac80211's current
channel value. In some cases, mac80211 switches channel before all
rx packets have been processed. This results in incorrect bss info.
We fix this by filling in frequency field with channel index obtained
from hardware, then fix potential cck missing issue by skb's original
hw rate. After all fix is done, convert hw rate back to the supported
band rate index.
Julian Wiedmann [Tue, 7 Dec 2021 09:04:50 +0000 (10:04 +0100)]
s390/qeth: don't offer .ndo_bridge_* ops for OSA devices
qeth_l2_detect_dev2br_support() will only set brport_hw_features for IQD
devices. So qeth_l2_bridge_getlink() and qeth_l2_bridge_setlink() will
always return -EOPNOTSUPP on OSA devices. Just don't offer these
callbacks instead.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: Alexandra Winter <wintera@linux.ibm.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Julian Wiedmann [Tue, 7 Dec 2021 09:04:48 +0000 (10:04 +0100)]
s390/qeth: simplify qeth_receive_skb()
Now that the OSN code is gone, we don't need the second switch statement
in the RX path. And getting rid of its (unreachable) default case is a
nice simplification.
Also don't pass in the full HW header, all we still need is a flag to
indicate whether the skb can use CSO. This we can already obtain during
the first peek at the HW header.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Reviewed-by: Alexandra Winter <wintera@linux.ibm.com> Reviewed-by: Wenjia Zhang <wenjia@linux.ibm.com> Signed-off-by: Alexandra Winter <wintera@linux.ibm.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Kees Cook [Tue, 7 Dec 2021 06:32:17 +0000 (22:32 -0800)]
hv_sock: Extract hvs_send_data() helper that takes only header
When building under -Warray-bounds, the compiler is especially
conservative when faced with casts from a smaller object to a larger
object. While this has found many real bugs, there are some cases that
are currently false positives (like here). With this as one of the last
few instances of the warning in the kernel before -Warray-bounds can be
enabled globally, rearrange the functions so that there is a header-only
version of hvs_send_data(). Silences this warning:
net/vmw_vsock/hyperv_transport.c: In function 'hvs_shutdown_lock_held.constprop':
net/vmw_vsock/hyperv_transport.c:231:32: warning: array subscript 'struct hvs_send_buf[0]' is partly outside array bounds of 'struct vmpipe_proto_header[1]' [-Warray-bounds]
231 | send_buf->hdr.pkt_type = 1;
| ~~~~~~~~~~~~~~~~~~~~~~~^~~
net/vmw_vsock/hyperv_transport.c:465:36: note: while referencing 'hdr'
465 | struct vmpipe_proto_header hdr;
| ^~~
This change results in no executable instruction differences.
Yihao Han [Tue, 7 Dec 2021 06:44:18 +0000 (22:44 -0800)]
net: dsa: felix: use kmemdup() to replace kmalloc + memcpy
Fix following coccicheck warning:
/drivers/net/dsa/ocelot/felix_vsc9959.c:1627:13-20:
WARNING opportunity for kmemdup
/drivers/net/dsa/ocelot/felix_vsc9959.c:1506:16-23:
WARNING opportunity for kmemdup
====================
prepare ocelot for external interface control
This patch set is derived from an attempt to include external control
for a VSC751[1234] chip via SPI. That patch set has grown large and is
getting unwieldy for reviewers and the developers... me.
I'm breaking out the changes from that patch set. Some are trivial
net: dsa: ocelot: remove unnecessary pci_bar variables
net: dsa: ocelot: felix: Remove requirement for PCS in felix devices
some are required for SPI
net: dsa: ocelot: felix: add interface for custom regmaps
and some are just to expose code to be shared
net: mscc: ocelot: split register definitions to a separate file
The entirety of this patch set should have essentially no impact on the
system performance.
====================
Colin Foster [Tue, 7 Dec 2021 17:00:28 +0000 (09:00 -0800)]
net: dsa: ocelot: felix: Remove requirement for PCS in felix devices
Existing felix devices all have an initialized pcs array. Future devices
might not, so running a NULL check on the array before dereferencing it
will allow those future drivers to not crash at this point
Signed-off-by: Colin Foster <colin.foster@in-advantage.com> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The pci_bar variables for the switch and imdio don't make sense for the
generic felix driver. Moving them to felix_vsc9959 to limit scope and
simplify the felix_info struct.
Signed-off-by: Colin Foster <colin.foster@in-advantage.com> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Jakub Kicinski [Wed, 8 Dec 2021 05:01:16 +0000 (21:01 -0800)]
Merge tag 'wireless-drivers-next-2021-12-07' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next
Kalle Valo says:
====================
wireless-drivers-next patches for v5.17
First set of patches for v5.17. The biggest change is the iwlmei
driver for Intel's AMT devices. Also now WCN6855 support in ath11k
should be usable.
Major changes:
ath10k
* fetch (pre-)calibration data via nvmem subsystem
ath11k
* enable 802.11 power save mode in station mode for qca6390 and wcn6855
* trace log support
* proper board file detection for WCN6855 based on PCI ids
* BSS color change support
rtw88
* add debugfs file to force lowest basic rate
* add quirk to disable PCI ASPM on HP 250 G7 Notebook PC
mwifiex
* add quirk to disable deep sleep with certain hardware revision in
Surface Book 2 devices
iwlwifi
* add iwlmei driver for co-operating with Intel's Active Management
Technology (AMT) devices
* tag 'wireless-drivers-next-2021-12-07' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next: (87 commits)
iwlwifi: mei: fix linking when tracing is not enabled
rtlwifi: rtl8192de: Style clean-ups
mwl8k: Use named struct for memcpy() region
intersil: Use struct_group() for memcpy() region
libertas_tf: Use struct_group() for memcpy() region
libertas: Use struct_group() for memcpy() region
wlcore: no need to initialise statics to false
rsi: Fix out-of-bounds read in rsi_read_pkt()
rsi: Fix use-after-free in rsi_rx_done_handler()
brcmfmac: Configure keep-alive packet on suspend
wilc1000: remove '-Wunused-but-set-variable' warning in chip_wakeup()
iwlwifi: mvm: read the rfkill state and feed it to iwlmei
iwlwifi: mvm: add vendor commands needed for iwlmei
iwlwifi: integrate with iwlmei
iwlwifi: mei: add debugfs hooks
iwlwifi: mei: add the driver to allow cooperation with CSME
mei: bus: add client dma interface
mwifiex: Ignore BTCOEX events from the 88W8897 firmware
mwifiex: Ensure the version string from the firmware is 0-terminated
mwifiex: Add quirk to disable deep sleep with certain hardware revision
...
====================
====================
net: second round of netdevice refcount tracking
The most interesting part of this series is probably
("inet: add net device refcount tracker to struct fib_nh_common")
but only future reports will confirm this guess.
====================
====================
mptcp: New features for MPTCP sockets and netlink PM
This collection of patches adds MPTCP socket support for a few socket
options, ioctls, and one ancillary data type (specifics for each are
listed below). There's also a patch modifying the netlink MPTCP path
manager API to allow setting the backup flag on a configured interface
using the endpoint ID instead of the full IP address.
Patches 1 & 2: TCP_INQ cmsg and selftests.
Patches 2 & 3: SIOCINQ, OUTQ, and OUTQNSD ioctls and selftests.
Patch 5: Change backup flag using endpoint ID.
Patches 6 & 7: IP_TOS socket option and selftests.
Patches 8-10: TCP_CORK and TCP_NODELAY socket options. Includes a tcp
change to expose __tcp_sock_set_cork() and __tcp_sock_set_nodelay() for
use by MPTCP.
====================
Maxim Galaganov [Fri, 3 Dec 2021 22:35:41 +0000 (14:35 -0800)]
mptcp: support TCP_CORK and TCP_NODELAY
First, add cork and nodelay fields to the mptcp_sock structure
so they can be used in sync_socket_options(), and fill them on setsockopt
while holding the msk socket lock.
Then, on setsockopt set proper tcp_sk(ssk)->nonagle values for subflows
by calling __tcp_sock_set_cork() or __tcp_sock_set_nodelay() on the ssk
while holding the ssk socket lock.
tcp_push_pending_frames() will be invoked on the ssk if a cork was cleared
or nodelay was set. Also set MPTCP_PUSH_PENDING bit by calling
mptcp_check_and_set_pending(). This will lead to __mptcp_push_pending()
being called inside mptcp_release_cb() with new tcp_sk(ssk)->nonagle.
Also add getsockopt support for TCP_CORK and TCP_NODELAY.
Acked-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: Maxim Galaganov <max@internet.ru> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Maxim Galaganov [Fri, 3 Dec 2021 22:35:40 +0000 (14:35 -0800)]
mptcp: expose mptcp_check_and_set_pending
Expose the mptcp_check_and_set_pending() function for use inside MPTCP
sockopt code. The next patch will call it when TCP_CORK is cleared or
TCP_NODELAY is set on the MPTCP socket in order to push pending data
from mptcp_release_cb().
Acked-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: Maxim Galaganov <max@internet.ru> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Maxim Galaganov [Fri, 3 Dec 2021 22:35:39 +0000 (14:35 -0800)]
tcp: expose __tcp_sock_set_cork and __tcp_sock_set_nodelay
Expose __tcp_sock_set_cork() and __tcp_sock_set_nodelay() for use in
MPTCP setsockopt code -- namely for syncing MPTCP socket options with
subflows inside sync_socket_options() while already holding the subflow
socket lock.
Acked-by: Paolo Abeni <pabeni@redhat.com> Acked-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: Maxim Galaganov <max@internet.ru> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
client & server use a unix socket connection to communicate
outside of the mptcp connection.
This allows the consumer to know in advance how many bytes have been
(or will be) sent by the peer.
This allows stricter checks on the bytecounts reported by TCP_INQ cmsg.
Suggested-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Fail on:
1. Huge value (> 1 kbyte, test case files are 1 kb)
2. last hint larger than returned bytes when read was short
3. erronenous indication of EOF.
3) happens when a hint of X bytes reads X-1 on next call
but next recvmsg returns more data (instead of EOF).
Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If we do not transfer dst->dev_tracker to the new device,
we will get warnings from ref_tracker_dir_exit() when odev
is finally dismantled.
Fixes: 9038c320001d ("net: dst: add net device refcount tracking to dst_entry") Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/r/20211207055603.1926372-1-eric.dumazet@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Tony Lu [Fri, 3 Dec 2021 11:33:31 +0000 (12:33 +0100)]
net/smc: Clear memory when release and reuse buffer
Currently, buffers are cleared when smc connections are created and
buffers are reused. This slows down the speed of establishing new
connections. In most cases, the applications want to establish
connections as quickly as possible.
This patch moves memset() from connection creation path to release and
buffer unuse path, this trades off between speed of establishing and
release.
Test environments:
- CPU Intel Xeon Platinum 8 core, mem 32 GiB, nic Mellanox CX4
- socket sndbuf / rcvbuf: 16384 / 131072 bytes
- w/o first round, 5 rounds, avg, 100 conns batch per round
- smc_buf_create() use bpftrace kprobe, introduces extra latency
Latency benchmarks for smc_buf_create():
w/o patch : 19040.0 ns
w/ patch : 1932.6 ns
ratio : 10.2% (-89.8%)
Latency benchmarks for socket create and connect:
w/o patch : 143.3 us
w/ patch : 102.2 us
ratio : 71.3% (-28.7%)
The latency of establishing connections is reduced by 28.7%.
net: prestera: replace zero-length array with flexible-array member
One-element and zero-length arrays are deprecated and should be
replaced with flexible-array members:
https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays
Replace zero-length array with flexible-array member and make use
of the struct_size() helper.
Arnd Bergmann [Sat, 4 Dec 2021 17:40:25 +0000 (18:40 +0100)]
net: wwan: iosm: select CONFIG_RELAY
The iosm driver started using relayfs, but is missing the Kconfig
logic to ensure it's built into the kernel:
x86_64-linux-ld: drivers/net/wwan/iosm/iosm_ipc_trace.o: in function `ipc_trace_create_buf_file_handler':
iosm_ipc_trace.c:(.text+0x16): undefined reference to `relay_file_operations'
x86_64-linux-ld: drivers/net/wwan/iosm/iosm_ipc_trace.o: in function `ipc_trace_subbuf_start_handler':
iosm_ipc_trace.c:(.text+0x31): undefined reference to `relay_buf_full'
x86_64-linux-ld: drivers/net/wwan/iosm/iosm_ipc_trace.o: in function `ipc_trace_ctrl_file_write':
iosm_ipc_trace.c:(.text+0xd5): undefined reference to `relay_flush'
x86_64-linux-ld: drivers/net/wwan/iosm/iosm_ipc_trace.o: in function `ipc_trace_port_rx':
Fixes: 00ef32565b9b ("net: wwan: iosm: device trace collection using relayfs") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Sergey Ryazanov <ryazanov.s.a@gmail.com> Reviewed-by: M Chetan Kumar <m.chetan.kumar@linux.intel.com> Link: https://lore.kernel.org/r/20211204174033.950528-1-arnd@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Eric Dumazet [Sat, 4 Dec 2021 04:53:56 +0000 (20:53 -0800)]
net: fix recent csum changes
Vladimir reported csum issues after my recent change in skb_postpull_rcsum()
Issue here is the following:
initial skb->csum is the csum of
[part to be pulled][rest of packet]
Old code:
skb->csum = csum_sub(skb->csum, csum_partial(pull, pull_length, 0));
New code:
skb->csum = ~csum_partial(pull, pull_length, ~skb->csum);
This is broken if the csum of [pulled part]
happens to be equal to skb->csum, because end
result of skb->csum is 0 in new code, instead
of being 0xffffffff
Two first patches add a generic infrastructure, that will be used
to get tracking of refcount increments/decrements.
The general idea is to be able to precisely pair each decrement with
a corresponding prior increment. Both share a cookie, basically
a pointer to private data storing stack traces.
The third patch adds dev_hold_track() and dev_put_track() helpers
(CONFIG_NET_DEV_REFCNT_TRACKER)
Then a series of 20 patches converts some dev_hold()/dev_put()
pairs to new hepers : dev_hold_track() and dev_put_track().
Hopefully this will be used by developpers and syzbot to
root cause bugs that cause netdevice dismantles freezes.
With CONFIG_PCPU_DEV_REFCNT=n option, we were able to detect
some class of bugs, but too late (when too many dev_put()
were happening).
Another series will be sent after this one is merged.
v3: moved NET_DEV_REFCNT_TRACKER to net/Kconfig.debug
added "depends on DEBUG_KERNEL && STACKTRACE_SUPPORT"
to hopefully get rid of kbuild reports for ARCH=nios2
Reworded patch 3 changelog.
Added missing htmldocs (Jakub)
v2: added four additional patches,
added netdev_tracker_alloc() and netdev_tracker_free()
addressed build error (kernel bots),
use GFP_ATOMIC in test_ref_tracker_timer_func()
====================
Eric Dumazet [Sun, 5 Dec 2021 04:21:57 +0000 (20:21 -0800)]
net: add net device refcount tracker infrastructure
net device are refcounted. Over the years we had numerous bugs
caused by imbalanced dev_hold() and dev_put() calls.
The general idea is to be able to precisely pair each decrement with
a corresponding prior increment. Both share a cookie, basically
a pointer to private data storing stack traces.
This patch adds dev_hold_track() and dev_put_track().
To use these helpers, each data structure owning a refcount
should also use a "netdevice_tracker" to pair the hold and put.
It can be hard to track where references are taken and released.
In networking, we have annoying issues at device or netns dismantles,
and we had various proposals to ease root causing them.
This patch adds new infrastructure pairing refcount increases
and decreases. This will self document code, because programmers
will have to associate increments/decrements.
This is controled by CONFIG_REF_TRACKER which can be selected
by users of this feature.
This adds both cpu and memory costs, and thus should probably be
used with care.
Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Manish Chopra [Thu, 2 Dec 2021 21:01:57 +0000 (13:01 -0800)]
qed*: esl priv flag support through ethtool
ESL(Enhanced System Lockdown) was designed to lock PCI adapter firmware
images and prevent changes to critical non-volatile configuration data
so that uncontrolled, malicious or unintentional modification to the
adapters are avoided, ensuring it's operational state. Once this feature is
enabled, the device is locked, rejecting any modification to non-volatile
images. Once unlocked, the protection is off such that firmware and
non-volatile configurations may be altered.
Driver just reflects the capability and status of this through
the ethtool private flag.
Manish Chopra [Thu, 2 Dec 2021 21:01:56 +0000 (13:01 -0800)]
qed*: enhance tx timeout debug info
This patch add some new qed APIs to query status block
info and report various data to MFW on tx timeout event
Along with that it enhances qede to dump more debug logs
(not just specific to the queue which was reported by stack)
on tx timeout which includes various other basic metadata about
all tx queues and other info (like status block etc.)
Dan Carpenter [Fri, 3 Dec 2021 09:55:31 +0000 (12:55 +0300)]
net: lan966x: fix a IS_ERR() vs NULL check in lan966x_create_targets()
The devm_ioremap() function does not return error pointers. It returns
NULL.
Fixes: db8bcaad5393 ("net: lan966x: add the basic lan966x driver") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Yang Yingliang [Fri, 3 Dec 2021 07:04:18 +0000 (15:04 +0800)]
net: prestera: acl: fix return value check in prestera_acl_rule_entry_find()
rhashtable_lookup_fast() returns NULL pointer not ERR_PTR().
Return rhashtable_lookup_fast() directly to fix this.
Fixes: 47327e198d42 ("net: prestera: acl: migrate to new vTCAM api") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Andy Shevchenko [Thu, 2 Dec 2021 21:00:29 +0000 (23:00 +0200)]
net: dsa: vsc73xxx: Get rid of duplicate of_node assignment
GPIO library does copy the of_node from the parent device of
the GPIO chip, there is no need to repeat this in the individual
drivers. Remove assignment here.
For the details one may look into the of_gpio_dev_init() implementation.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Chris Mi [Wed, 1 Dec 2021 13:31:53 +0000 (15:31 +0200)]
net/sched: act_ct: Offload only ASSURED connections
Short-lived connections increase the insertion rate requirements,
fill the offload table and provide very limited offload value since
they process a very small amount of packets. The ct ASSURED flag is
designed to filter short-lived connections for early expiration.
Offload connections when they are ESTABLISHED and ASSURED.
Signed-off-by: Chris Mi <cmi@nvidia.com> Reviewed-by: Oz Shlomo <ozsh@nvidia.com> Reviewed-by: Roi Dayan <roid@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jie Wang [Fri, 3 Dec 2021 09:20:59 +0000 (17:20 +0800)]
net: hns3: fix hns3 driver header file not self-contained issue
The hns3 driver header file uses the structure of other files, but does
not include corresponding file, which causes a check warning that the
header file is not self-contained.
Therefore, the required header file is included in the header file, and
the structure declaration is added to the header file to avoid cyclic
dependency of the header file.
Signed-off-by: Jie Wang <wangjie125@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Hao Chen [Fri, 3 Dec 2021 09:20:58 +0000 (17:20 +0800)]
net: hns3: replace one tab with space in for statement
Replace one tab with space between symbol ')' and '{' in for statement of
function hclge_map_tqp().
Signed-off-by: Hao Chen <chenhao288@hisilicon.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Hao Chen [Fri, 3 Dec 2021 09:20:57 +0000 (17:20 +0800)]
net: hns3: remove rebundant line for hclge_dbg_dump_tm_pg()
Return value judgment should follow the function call, so remove line
between them.
Signed-off-by: Hao Chen <chenhao288@hisilicon.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Hao Chen [Fri, 3 Dec 2021 09:20:56 +0000 (17:20 +0800)]
net: hns3: add comments for hclge_dbg_fill_content()
When we use hclge_dbg_fill_content() to fill contents with
specific format according to struct hclge_dbg_item *items,
it may cause content cover due to unreasonable items.
So add comments to explain how to avoid it.
Signed-off-by: Hao Chen <chenhao288@hisilicon.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Hao Chen [Fri, 3 Dec 2021 09:20:55 +0000 (17:20 +0800)]
net: hns3: add void before function which don't receive ret
Add void before function which don't receive ret to improve code
readability.
Signed-off-by: Hao Chen <chenhao288@hisilicon.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Hao Chen [Fri, 3 Dec 2021 09:20:54 +0000 (17:20 +0800)]
net: hns3: align return value type of atomic_read() with its output
Change output value type of atomic_read() from %u to %d.
Signed-off-by: Hao Chen <chenhao288@hisilicon.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
projects / mirror_ubuntu-kernels.git / log