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path: root/drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h
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Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h')
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h b/drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h
index c067d2efab51..b9c2f67d3794 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h
@@ -86,7 +86,7 @@ void mlx5e_free_txqsq_descs(struct mlx5e_txqsq *sq);
static inline bool
mlx5e_skb_fifo_has_room(struct mlx5e_skb_fifo *fifo)
{
- return (*fifo->pc - *fifo->cc) < fifo->mask;
+ return (u16)(*fifo->pc - *fifo->cc) < fifo->mask;
}
static inline bool
@@ -302,6 +302,8 @@ void mlx5e_skb_fifo_push(struct mlx5e_skb_fifo *fifo, struct sk_buff *skb)
static inline
struct sk_buff *mlx5e_skb_fifo_pop(struct mlx5e_skb_fifo *fifo)
{
+ WARN_ON_ONCE(*fifo->pc == *fifo->cc);
+
return *mlx5e_skb_fifo_get(fifo, (*fifo->cc)++);
}