octeontx2-af: initialize lmac_bmap in rvu_mcs_set_lmac_bmap()

Browse source

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: ca7f49ff88 ("octeontx2-af: cn10k: Introduce driver for macsec block.")
Signed-off-by: Karl Mehltretter <kmehltretter@gmail.com>
Reviewed-by: Ratheesh Kannoth <rkannoth@marvell.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20260812060730.6181-1-kmehltretter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

...

This commit is contained in:

Karl Mehltretter 2026-08-12 08:07:30 +02:00 • committed by Jakub Kicinski

parent ad27ed7d23

commit 4b92a3710d

1 changed files with 1 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

drivers/net/ethernet/marvell/octeontx2/af/mcs_rvu_if.c

View file