batman-adv: ensure u16 aligned mac address arrays on stack

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An u8 array on the stack has a natural alignment of only 1 byte. An
u8[ETH_ALEN] array on the stack must therefore be assumed to only be 1 byte
aligned. But many etherdevices.h functions are requiring a 2 byte (u16)
alignment.

Annote all u8[ETH_ALEN] arrays on the stack as __aligned(2) to make sure
that the compiler takes care of aligning it correctly.

Reported-by: Sashiko <sashiko-bot@kernel.org>
Closes: https://sashiko.dev/#/patchset/20260821094813.201800-1-sw%40simonwunderlich.de?part=5
Signed-off-by: Sven Eckelmann <sven@narfation.org>

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Sven Eckelmann 2026-08-22 15:14:03 +02:00

parent 776c26254d

commit a5f7058bee

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4 changed files with 19 additions and 13 deletions

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6

net/batman-adv/bridge_loop_avoidance.c

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8

net/batman-adv/distributed-arp-table.c

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12

net/batman-adv/mesh-interface.c

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6

net/batman-adv/multicast.c

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