Re: [PATCH 5.10] iwlwifi: mvm: retry init flow if failed

[Greg KH <gregkh@linuxfoundation.org>]

On Sat, Dec 04, 2021 at 01:02:02PM +0200, Luca Coelho wrote:
> From: Mordechay Goodstein <mordechay.goodstein@intel.com>
> 
> commit 5283dd677e52af9db6fe6ad11b2f12220d519d0c upstream.
> 
> In some very rare cases the init flow may fail.  In many cases, this is
> recoverable, so we can retry.  Implement a loop to retry two more times
> after the first attempt failed.
> 
> This can happen in two different situations, namely during probe and
> during mac80211 start.  For the first case, a simple loop is enough.
> For the second case, we need to add a flag to prevent mac80211 from
> trying to restart it as well, leaving full control with the driver.
> 
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
> Link: https://lore.kernel.org/r/iwlwifi.20211110150132.57514296ecab.I52a0411774b700bdc7dedb124d8b59bf99456eb2@changeid
> ---
>  drivers/net/wireless/intel/iwlwifi/iwl-drv.c  | 22 +++++++++++------
>  drivers/net/wireless/intel/iwlwifi/iwl-drv.h  |  3 +++
>  .../net/wireless/intel/iwlwifi/mvm/mac80211.c | 24 ++++++++++++++++++-
>  drivers/net/wireless/intel/iwlwifi/mvm/mvm.h  |  3 +++
>  drivers/net/wireless/intel/iwlwifi/mvm/ops.c  |  3 +++
>  5 files changed, 47 insertions(+), 8 deletions(-)

Both backports now queued up, thanks.

greg k-h