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336097d74c
Currently, an interface is created in the driver during channel assignment.
If mac80211 attempts to set a key for an interface before this assignment,
the driver caches the key. Once the interface is created, the driver
installs the cached key to the hardware. This sequence is exemplified in
mesh mode operation where the group key is set before channel assignment.
However, in ath12k_mac_update_key_cache(), after caching the key, due to
incorrect logic, it is deleted from the cache during the subsequent loop
iteration. As a result, after the interface is created, the driver does not
find any cached key, and the key is not installed to the hardware which is
wrong. This leads to issue in mesh, where broadcast traffic is not
encrypted over the air.
Fix this issue by adjusting the logic of ath12k_mac_update_key_cache()
properly.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3-03253.1-QCAHKSWPL_SILICONZ-29 # Nicolas Escande <nico.escande@gmail.com>
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 # Nicolas Escande <nico.escande@gmail.com>
Fixes:
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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.