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Linux kernel source tree
246eb353fb
Memory allocated for firmware pdev, vdev and beacon statistics
are not released during rmmod. Below kmemleak trace is seen for this
memory leak:
unreferenced object 0xffff8e76aebdfa00 (size 256):
comm "softirq", pid 0, jiffies 4299272453
hex dump (first 32 bytes):
28 19 71 c3 76 8e ff ff 28 19 71 c3 76 8e ff ff (.q.v...(.q.v...
9f ff ff ff f4 d4 03 00 aa 88 09 00 bd 40 23 00 .............@#.
backtrace (crc dfe1b440):
__kmalloc_cache_noprof+0x2b0/0x370
ath12k_wmi_tlv_fw_stats_data_parse.isra.0+0x44e/0x730 [ath12k]
ath12k_wmi_tlv_iter+0x5e/0x140 [ath12k]
ath12k_update_stats_event+0x85/0x300 [ath12k]
ath12k_wmi_op_rx+0x624/0xd70 [ath12k]
ath12k_htc_rx_completion_handler+0x1f4/0x330 [ath12k]
ath12k_ce_recv_process_cb+0x218/0x300 [ath12k]
ath12k_pci_ce_workqueue+0x1b/0x30 [ath12k]
process_one_work+0x219/0x680
bh_worker+0x198/0x1f0
tasklet_action+0x13/0x30
handle_softirqs+0xca/0x460
__irq_exit_rcu+0xbe/0x110
irq_exit_rcu+0x9/0x30
common_interrupt+0xa7/0xc0
asm_common_interrupt+0x26/0x40
Fix this by calling ath12k_fw_stats_reset() before hardware unregister.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1
Fixes:
|
||
|---|---|---|
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .clippy.toml | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| 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 reStructuredText 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.