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648ab4720c
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:
|
History
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|---|---|---|
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
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| 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.