From: Ido Shamay <i...@mellanox.com>
In mlx4_en_is_ring_empty we check if ring surpassed its size.
Since the prod and cons indicators are u32, there might be a state where
prod wrapped around and cons, making this assert false, although no
actual bug exists (other code segment can cope with this state).
Signed-off-by: Ido Shamay <i...@mellanox.com>
Signed-off-by: Eugenia Emantayev <euge...@mellanox.com>
Signed-off-by: Or Gerlitz <ogerl...@mellanox.com>
---
drivers/net/ethernet/mellanox/mlx4/en_rx.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
index 7a4f20b..9c145dd 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
@@ -246,7 +246,6 @@ static int mlx4_en_prepare_rx_desc(struct mlx4_en_priv
*priv,
static inline bool mlx4_en_is_ring_empty(struct mlx4_en_rx_ring *ring)
{
- BUG_ON((u32)(ring->prod - ring->cons) > ring->actual_size);
return ring->prod == ring->cons;
}
--
2.3.7
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