net/mlx4_core: Fix cast warning in fw.c

Fix the following SPARSE warning, in MLX4_GET() macro:
drivers/net/ethernet/mellanox/mlx4/fw.c:233:9: warning: cast to restricted __be64

Fixes: 17d5ceb6e43e ("net/mlx4_core: Fix unaligned accesses")
Signed-off-by: Tariq Toukan <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c
index 16c09949afd5b86ebb25d6ea87d3ee49459eef6c..634f603f941c4d60cc86993e98f04194c652ec95 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx4/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.c
@@ -57,12 +57,12 @@ MODULE_PARM_DESC(enable_qos, "Enable Enhanced QoS support (default: off)");
 #define MLX4_GET(dest, source, offset)                               \
        do {                                                          \
                void *__p = (char *) (source) + (offset);             \
-               u64 val;                                              \
-               switch (sizeof(dest)) {                       \
+               __be64 val;                                           \
+               switch (sizeof(dest)) {                               \
                case 1: (dest) = *(u8 *) __p;       break;            \
                case 2: (dest) = be16_to_cpup(__p); break;            \
                case 4: (dest) = be32_to_cpup(__p); break;            \
-               case 8: val = get_unaligned((u64 *)__p);              \
+               case 8: val = get_unaligned((__be64 *)__p);           \
                        (dest) = be64_to_cpu(val);  break;            \
                default: __buggy_use_of_MLX4_GET();                   \
                }                                                     \