octeontx2-af: npc: cn20k: Initialize default-rule index outputs up front

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npc_cn20k_dft_rules_idx_get() wrote USHRT_MAX into individual outputs only
on some error paths (lbk promisc lookup, VF ucast lookup, and the PF rule
walk), which could leave other caller slots stale across retries.

Set every non-NULL bcast/mcast/promisc/ucast pointer to USHRT_MAX once at
entry, then drop the duplicate assignments on failure. Successful lookups
still overwrite the relevant slot before returning.

Fixes: 09d3b7a140 ("octeontx2-af: npc: cn20k: Allocate default MCAM indexes")
Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>
Link: https://patch.msgid.link/20260429022722.1110289-9-rkannoth@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Ratheesh Kannoth 2026-04-29 07:57:20 +05:30 • committed by Jakub Kicinski

parent f6803eb070

commit afb474bd4f

1 changed files with 7 additions and 3 deletions

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drivers/net/ethernet/marvell/octeontx2/af/cn20k/npc.c

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