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Benjamin Berg 75575e2d25 wifi: mac80211: do not permit 40 MHz EHT operation on 5/6 GHz
The EHT PHY requirements state that 80 MHz must be supported on the 5
and 6 GHz bands unless the STA is 20 MHz only. So if the channel width
is limited to 40 MHz on a band other than 2.4 GHz, then disable EHT and
downgrade to HE.

The primary case where this can happen is if the hardware disables
puncturing using IEEE80211_HW_DISALLOW_PUNCTURING.

Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Cc: stable@vger.kernel.org
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250826202553.a6582f3abf57.Ic670429dc7127f68c818b4290d950ebfb5a0b9e1@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-08-28 13:39:16 +02:00
Documentation Including fixes from Bluetooth. 2025-08-21 13:51:15 -04:00
LICENSES
arch LoongArch: KVM: Add address alignment check in pch_pic register access 2025-08-20 22:51:15 +08:00
block block: restore default wbt enablement 2025-08-13 05:33:48 -06:00
certs
crypto Significant patch series in this pull request: 2025-08-03 16:23:09 -07:00
drivers wifi: brcmfmac: fix use-after-free when rescheduling brcmf_btcoex_info work 2025-08-26 13:46:18 +02:00
fs Three ksmbd smb3 server fixes 2025-08-21 04:48:41 -07:00
include Including fixes from Bluetooth. 2025-08-21 13:51:15 -04:00
init Significant patch series in this pull request: 2025-08-03 16:23:09 -07:00
io_uring io_uring/io-wq: add check free worker before create new worker 2025-08-13 06:31:10 -06:00
ipc
kernel Probes fixes for v6.17-rc2: 2025-08-20 16:29:30 -07:00
lib Crypto library fixes for v6.17-rc3 2025-08-21 04:54:01 -07:00
mm mm/mremap: avoid expensive folio lookup on mremap folio pte batch 2025-08-11 23:00:59 -07:00
net wifi: mac80211: do not permit 40 MHz EHT operation on 5/6 GHz 2025-08-28 13:39:16 +02:00
rust rust: kbuild: clean output before running `rustdoc` 2025-08-12 21:10:50 +02:00
samples Significant patch series in this pull request: 2025-08-03 16:23:09 -07:00
scripts Kbuild updates for v6.17 2025-08-06 07:32:52 +03:00
security + Features 2025-08-04 08:17:28 -07:00
sound ALSA: hda/tas2781: Normalize the volume kcontrol name 2025-08-14 11:17:12 +02:00
tools Including fixes from Bluetooth. 2025-08-21 13:51:15 -04:00
usr
virt
.clang-format
.clippy.toml
.cocciconfig
.editorconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap Significant patch series in this pull request: 2025-08-03 16:23:09 -07:00
.pylintrc
.rustfmt.toml
COPYING
CREDITS Kbuild updates for v6.17 2025-08-06 07:32:52 +03:00
Kbuild
Kconfig
MAINTAINERS MAINTAINERS: update s390/net 2025-08-14 17:36:15 -07:00
Makefile Linux 6.17-rc2 2025-08-17 15:22:10 -07:00
README

README

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.