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Subject[PATCH 04/18] IB/mlx5: Use ARRAY_SIZE
Date
Using the ARRAY_SIZE macro improves the readability of the code.

Found with Coccinelle with the following semantic patch:
@r depends on (org || report)@
type T;
T[] E;
position p;
@@
(
(sizeof(E)@p /sizeof(*E))
|
(sizeof(E)@p /sizeof(E[...]))
|
(sizeof(E)@p /sizeof(T))
)

Signed-off-by: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr>
---
drivers/infiniband/hw/mlx5/odp.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/infiniband/hw/mlx5/odp.c b/drivers/infiniband/hw/mlx5/odp.c
index 3d701c7a4c91..e2197bdda89c 100644
--- a/drivers/infiniband/hw/mlx5/odp.c
+++ b/drivers/infiniband/hw/mlx5/odp.c
@@ -32,6 +32,7 @@

#include <rdma/ib_umem.h>
#include <rdma/ib_umem_odp.h>
+#include <linux/kernel.h>

#include "mlx5_ib.h"
#include "cmd.h"
@@ -929,9 +930,8 @@ static int mlx5_ib_mr_initiator_pfault_handler(
return -EFAULT;
}

- if (unlikely(opcode >= sizeof(mlx5_ib_odp_opcode_cap) /
- sizeof(mlx5_ib_odp_opcode_cap[0]) ||
- !(transport_caps & mlx5_ib_odp_opcode_cap[opcode]))) {
+ if (unlikely(opcode >= ARRAY_SIZE(mlx5_ib_odp_opcode_cap) ||
+ !(transport_caps & mlx5_ib_odp_opcode_cap[opcode]))) {
mlx5_ib_err(dev, "ODP fault on QP of an unsupported opcode 0x%x\n",
opcode);
return -EFAULT;
--
2.14.1
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