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Bitterblue Smith b4d46b4fb2 wifi: rtw88: Fix inadvertent sharing of struct ieee80211_supported_band data
[ Upstream commit fcac0f23d4 ]

Internally wiphy writes to individual channels in this structure,
so we must not share one static definition of channel list between
multiple device instances, because that causes hard to debug
breakage.

For example, with two rtw88 driven devices in the system, channel
information may get incoherent, preventing channel use.

Copied from commit 0ae36391c8 ("wifi: rtw89: Fix inadverent sharing
of struct ieee80211_supported_band data").

Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/e94ad653-2b6d-4284-a33c-8c694f88955b@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2026-03-04 07:21:11 -05:00
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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.