Re: [PATCH net] octeontx2-af: initialize lmac_bmap in rvu_mcs_set_lmac_bmap()

[Ratheesh Kannoth]

On 2026-08-12 at 11:37:30, Karl Mehltretter (kmehltretter@xxxxxxxxx) wrote:
> rvu_mcs_set_lmac_bmap() declares lmac_bmap without initializing it and
> only sets bits for valid lmacs with set_bit(), which ORs into the word
> without clearing it first. Bits for invalid or skipped ports keep
> whatever was on the stack, and the garbage is stored into
> mcs->hw->lmac_bmap.
>
> Initialize lmac_bmap to 0 so only valid lmacs are marked.
>
> Found with Clang's -Wconditional-uninitialized.
>
> Fixes: ca7f49ff8846 ("octeontx2-af: cn10k: Introduce driver for macsec block.")
> Assisted-by: Claude:claude-fable-5
> Signed-off-by: Karl Mehltretter <kmehltretter@xxxxxxxxx>

Thank you.

Reviewed-by: Ratheesh Kannoth <rkannoth@xxxxxxxxxxx>