net: dsa: b53: properly bound ARL searches for < 4 ARL bin chips

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When iterating over the ARL table we stop at max ARL entries / 2, but
this is only valid if the chip actually returns 2 results at once. For
chips with only one result register we will stop before reaching the end
of the table if it is more than half full.

Fix this by only dividing the maximum results by two if we have a chip
with more than one result register (i.e. those with 4 ARL bins).

Fixes: cd169d799b ("net: dsa: b53: Bound check ARL searches")
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20251102100758.28352-4-jonas.gorski@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Jonas Gorski 2025-11-02 11:07:58 +01:00 • committed by Jakub Kicinski

parent 0be04b5fa6

commit e57723fe53

1 changed files with 6 additions and 3 deletions

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drivers/net/dsa/b53/b53_common.c

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