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net: mana: Add WARN_ON_ONCE in case of CQE read overflow

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This is not an expected case normally.
Add WARN_ON_ONCE in case of CQE read overflow, instead of failing
silently.

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Haiyang Zhang 2021-08-24 09:46:01 -07:00 committed by David S. Miller
parent 1e2d0824a9
commit c1a3e9f98d
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/microsoft/mana/gdma_main.c
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@ -1093,7 +1093,7 @@ static int mana_gd_read_cqe(struct gdma_queue *cq, struct gdma_comp *comp)
new_bits = (cq->head / num_cqe) & GDMA_CQE_OWNER_MASK;
/* Return -1 if overflow detected. */
if (owner_bits != new_bits)
if (WARN_ON_ONCE(owner_bits != new_bits))
return -1;
comp->wq_num = cqe->cqe_info.wq_num;