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[ Upstream commit fa645e663165d69f05f95a0c3aa3b3d08f4fdeda ] Currently the soc_dp_stats debugfs file has the following permissions: # ls -l /sys/kernel/debug/ath11k/pci-0000:03:00.0/soc_dp_stats -rw------- 1 root root 0 Mar 4 15:04 /sys/kernel/debug/ath11k/pci-0000:03:00.0/soc_dp_stats However this file does not actually support write operations -- no .write() method is registered. Therefore use the correct permissions when creating the file. After the change: # ls -l /sys/kernel/debug/ath11k/pci-0000:03:00.0/soc_dp_stats -r-------- 1 root root 0 Mar 4 15:15 /sys/kernel/debug/ath11k/pci-0000:03:00.0/soc_dp_stats Tested-on: WCN6855 hw2.1 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.30 Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://msgid.link/20240305-fix-soc_dp_stats-permission-v1-1-2ec10b42f755@quicinc.com Stable-dep-of: 9f6e82d11bb9 ("wifi: ath11k: avoid burning CPU in ath11k_debugfs_fw_stats_request()") Signed-off-by: Sasha Levin <sashal@kernel.org>
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.