[dpdk-dev] [PATCH] net/mlx5: fix location of assert function
Asaf Penso
asafp at mellanox.com
Thu Apr 16 19:15:09 CEST 2020
The asserts makes sure that 'i' doesn't exceed the exepcted value.
This to prevent an out of bound access to dbr_bitmap.
The current location of the assert protects the assignment of
dbr_bitmap, but not the access to it.
Moved the assert to the correct place, to protect both cases.
Also, used an existing define for the assert.
Fixes: 21cae858 ("net/mlx5: allocate door-bells via DevX")
Cc: stable at dpdk.org
Signed-off-by: Asaf Penso <asafp at mellanox.com>
Reviewed-by: Dekel Peled <dekelp at mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo at mellanox.com>
---
drivers/net/mlx5/mlx5.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index f8b134c..df12a3b 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -1989,8 +1989,8 @@ struct mlx5_flow_id_pool *
i++)
; /* Empty. */
/* Find the first clear bit. */
+ MLX5_ASSERT(i < MLX5_DBR_BITMAP_SIZE);
j = rte_bsf64(~page->dbr_bitmap[i]);
- MLX5_ASSERT(i < (MLX5_DBR_PER_PAGE / 64));
page->dbr_bitmap[i] |= (1 << j);
page->dbr_count++;
*dbr_page = page;
--
1.8.3.1
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