Re: [PATCH v2 wireless 0/3] wifi: replace open-coded IE searches with cfg80211_find_ie()

[Greg KH]

On Mon, Oct 26, 2026 at 10:31:52PM +0000, Tristan Madani wrote:
> Three wireless drivers (carl9170, rt2x00, p54) each hand-roll their own
> TIM IE search function.  Replace them with cfg80211_find_ie(), which
> already provides a correct and well-tested IE search.
> 
> Changes in v2:
>   - Replace the entire open-coded functions with cfg80211_find_ie()
>     instead of only tightening the loop condition, per Johannes Berg.
>   - Add pre-subtraction length guards in p54 to prevent unsigned
>     underflow on truncated beacon frames.
> 
> Tristan Madani (3):
>   wifi: carl9170: replace open-coded IE search with cfg80211_find_ie()
>   wifi: rt2x00: replace open-coded IE search with cfg80211_find_ie()
>   wifi: p54: replace open-coded IE search with cfg80211_find_ie()
> 
>  drivers/net/wireless/ath/carl9170/rx.c        | 27 ++++-------------
>  drivers/net/wireless/intersil/p54/lmac.h      |  3 --
>  drivers/net/wireless/intersil/p54/main.c      | 30 +++++--------------
>  drivers/net/wireless/intersil/p54/txrx.c      | 12 ++++++--
>  .../net/wireless/ralink/rt2x00/rt2x00dev.c    | 30 +++++--------------
>  5 files changed, 29 insertions(+), 73 deletions(-)
> 
> -- 
> 2.47.3
> 
> 

<formletter>

This is not the correct way to submit patches for inclusion in the
stable kernel tree.  Please read:
    https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.

</formletter>