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11b86e2ce9
Currently, the DFS CAC time and the usable state of the primary channel in the channel definition are used to set the CAC_RUNNING flag for the ath12k radio structure. However, this approach is flawed because there are channel definitions where the primary channel is not a DFS channel, but the secondary channel is. For example, in 5 GHz band, channel 36 with 160 MHz bandwidth. In such cases, the flag is not set correctly and hence places where this flag is tested will not operate as expected. For example, Rx packets will not be dropped. To fix this issue, use the cfg80211_chandef_dfs_usable() function from cfg80211, which returns true if at least one channel is in a usable state. This will ensure the CAC_RUNNING flag is set properly. Additionally, update the CAC running debug log message to include the CAC time in milliseconds and also print the center frequency segment 1. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com> Acked-by: Kalle Valo <kvalo@kernel.org> Link: https://patch.msgid.link/20241218-ath12k_mlo_dfs-v1-2-058e783bcfc7@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
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.