Re: [PATCH 6.6] wifi: iwlwifi: support BIOS override for 5G9 in CA also in LARI version 8

["Grumbach, Emmanuel" <emmanuel.grumbach@intel.com>]

Hello stable kernel maintainers,

On Thu, 2025-03-20 at 15:22 +0200, Emmanuel Grumbach wrote:
> From: Miri Korenblit <miriam.rachel.korenblit@intel.com>
> 
> commit b1e8102a4048003097c7054cbc00bbda91a5ced7 upstream
> 
> Commit 6b3e87cc0ca5 ("iwlwifi: Add support for LARI_CONFIG_CHANGE_CMD
> cmd v9")
> added a few bits to
> iwl_lari_config_change_cmd::oem_unii4_allow_bitmap
> if the FW has LARI version >= 9.
> But we also need to send those bits for version 8 if the FW is
> capable
> of this feature (indicated with capability bits)
> Add the FW capability bit, and set the additional bits in the cmd
> when
> the version is 8 and the FW capability bit is set.
> 
> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
> Reviewed-by: Johannes Berg <johannes.berg@intel.com>
> Link:
> https://patch.msgid.link/20241226174257.dc5836f84514.I1e38f94465a36731034c94b9811de10cb6ee5921@changeid
> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
> ---
>  drivers/net/wireless/intel/iwlwifi/fw/file.h |  4 ++-
>  drivers/net/wireless/intel/iwlwifi/mvm/fw.c  | 37
> ++++++++++++++++++--
>  2 files changed, 38 insertions(+), 3 deletions(-)

I didn't want to alter the commit log of this patch, but this patch has
a bigger impact that just enabling a feature in the firmware. It checks
that the firmware actually supports that feature and this fixes crashes
that were reported on certain device / platform combinations that made
wifi unusable.