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net/mlx5: Add missing likely/unlikely hints to cq events

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If a hardware event is targeting a CQ, that CQ should exist.
Add unlikely to error handling flows.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Reviewed-by: Gal Pressman <galp@mellanox.com>
This commit is contained in:
Saeed Mahameed 2018-02-07 20:48:43 -08:00
parent 02d92f7903
commit d2ff4fa575
1 changed files with 3 additions and 3 deletions
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6
drivers/net/ethernet/mellanox/mlx5/core/cq.c
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@ -97,7 +97,7 @@ void mlx5_cq_completion(struct mlx5_eq *eq, u32 cqn)
refcount_inc(&cq->refcount);
spin_unlock(&table->lock);
if (!cq) {
if (unlikely(!cq)) {
mlx5_core_warn(eq->dev, "Completion event for bogus CQ 0x%x\n", cqn);
return;
}
@ -118,12 +118,12 @@ void mlx5_cq_event(struct mlx5_eq *eq, u32 cqn, int event_type)
spin_lock(&table->lock);
cq = radix_tree_lookup(&table->tree, cqn);
if (cq)
if (likely(cq))
refcount_inc(&cq->refcount);
spin_unlock(&table->lock);
if (!cq) {
if (unlikely(!cq)) {
mlx5_core_warn(eq->dev, "Async event for bogus CQ 0x%x\n", cqn);
return;
}