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Baochen Qiang 648ab4720c ath11k: Fix missing rx_desc_get_ldpc_support in wcn6855_ops 
rx_desc_get_ldpc_support is missing in wcn6855_ops, resulting on WCN6855 a
kernel crash after connecting to an AP and waiting for few minutes. Fix it by
implementing WCN6855's version of this field and adding it to wcn6855_ops.

Crash stack:
[  184.862605] BUG: kernel NULL pointer dereference, address: 0000000000000000
[  184.862615] #PF: supervisor instruction fetch in kernel mode
[  184.862620] #PF: error_code(0x0010) - not-present page
[  184.862626] PGD 0 P4D 0
[  184.862634] Oops: 0010 [#1] PREEMPT SMP PTI
[  184.862642] CPU: 1 PID: 0 Comm: swapper/1 Kdump: loaded Not tainted 5.16.0-wt-ath+ #1
[  184.862651] Hardware name: Intel(R) Client Systems NUC8i7HVK/NUC8i7HVB, BIOS HNKBLi70.86A.0059.2019.1112.1124 11/12/2019
[  184.862656] RIP: 0010:0x0
[  184.862669] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
[  184.862673] RSP: 0018:ffff9eedc003cca8 EFLAGS: 00010202
[  184.862680] RAX: 0000000000000000 RBX: ffff9eedc003cd30 RCX: 0000000000000002
[  184.862686] RDX: 0000000000000002 RSI: ffffffffc1773458 RDI: ffff8eb5843de240
[  184.862692] RBP: ffff8eb59685a0e0 R08: 0000000000000001 R09: ffff8eb6fef2b000
[  184.862700] R10: ffff9eedc003cd70 R11: ffff8eb5880a9ff0 R12: ffff8eb5843de240
[  184.862707] R13: 0000000000000000 R14: 0000000000000008 R15: 0000000000000003
[  184.862714] FS:  0000000000000000(0000) GS:ffff8eb6f6c40000(0000) knlGS:0000000000000000
[  184.862723] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  184.862733] CR2: ffffffffffffffd6 CR3: 000000002f60a001 CR4: 00000000003706e0
[  184.862743] Call Trace:
[  184.862751]  <IRQ>
[  184.862759]  ath11k_dp_rx_h_ppdu+0x210/0x350 [ath11k]
[  184.862841]  ath11k_dp_rx_process_received_packets+0x1e6/0x6b0 [ath11k]
[  184.862891]  ath11k_dp_process_rx+0x32d/0x3e0 [ath11k]

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1

Fixes: b3febdccde ("ath11k: add LDPC FEC type in 802.11 radiotap header")
Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220126010144.2090-1-quic_bqiang@quicinc.com
2022-01-31 16:06:01 +02:00
arch ARM fixes for 5.17-rc: 2022-01-25 08:02:46 +02:00
block bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
certs certs: Fix build error when CONFIG_MODULE_SIG_KEY is empty 2022-01-23 00:08:44 +09:00
crypto lib/crypto: add prompts back to crypto libraries 2022-01-18 13:03:55 +01:00
Documentation Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-01-27 12:54:16 -08:00
drivers ath11k: Fix missing rx_desc_get_ldpc_support in wcn6855_ops 2022-01-31 16:06:01 +02:00
fs NFS Client Updates for Linux 5.17 2022-01-25 20:16:03 +02:00
include ipv6: partially inline ipv6_fixup_options 2022-01-27 19:46:11 -08:00
init lib/stackdepot: allow optional init and stack_table allocation by kvmalloc() 2022-01-22 08:33:37 +02:00
ipc proc: remove PDE_DATA() completely 2022-01-22 08:33:37 +02:00
kernel Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-01-27 12:54:16 -08:00
lib bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
net ipv6: partially inline ipv6_fixup_options 2022-01-27 19:46:11 -08:00
samples Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2022-01-24 15:42:29 -08:00
scripts Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-01-27 12:54:16 -08:00
security Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2022-01-24 15:42:29 -08:00
sound proc: remove PDE_DATA() completely 2022-01-22 08:33:37 +02:00
tools Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-01-27 12:54:16 -08:00
usr usr/include/Makefile: add linux/nfc.h to the compile-test coverage 2022-01-22 21:48:45 +09:00
virt Generic: 2022-01-22 09:40:01 +02:00
.clang-format genirq/msi: Make interrupt allocation less convoluted 2021-12-16 22:22:20 +01:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore .gitignore: ignore only top-level modules.builtin 2021-05-02 00:43:35 +09:00
.mailmap mailmap: update email address of Brian Silverman 2022-01-24 18:27:23 +01:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Removing Ohad from remoteproc/rpmsg maintenance 2021-12-08 10:09:40 -07:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS Networking fixes for 5.17-rc2, including fixes from netfilter and can. 2022-01-27 20:58:39 +02:00
Makefile Linux 5.17-rc1 2022-01-23 10:12:53 +02:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.