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Currently fw_features is used to check if a specific feature is supported or not: if the feature bit is set the feature is believed to be supported, otherwise not supported. Since fw_features is populated only when using firmware API-2, and by default it is zero, in case of API-1 such as WCN7850 firmware it is possible that a feature is not enabled by host while actually firmware supports it. To avoid this, add a new flag indicating whether fw_features has been ever populated or not, and only when that flag is true we choose to believe fw_features. This benefits firmware MLO capability validation in an upcoming patch. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00284-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00209-QCAHKSWPL_SILICONZ-1 Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com> Link: https://patch.msgid.link/20250409-ath12k-wcn7850-mlo-support-v2-2-3801132ca2c3@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.