[PATCH] libmlx4: Fix a compiler warning

[Bart Van Assche <bvanassche-HInyCGIudOg@public.gmane.org>]

Avoid that link_local_gid() triggers the following compiler warning:
dereferencing type-punned pointer will break strict-aliasing rules

Signed-off-by: Bart Van Assche <bvanassche-HInyCGIudOg@public.gmane.org>

---
 src/verbs.c |    8 +++-----
 1 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/src/verbs.c b/src/verbs.c
index 199d107..28d8585 100644
--- a/src/verbs.c
+++ b/src/verbs.c
@@ -616,12 +616,10 @@ int mlx4_destroy_qp(struct ibv_qp *ibqp)
 
 static int link_local_gid(const union ibv_gid *gid)
 {
-	uint32_t hi = *(uint32_t *)(gid->raw);
-	uint32_t lo = *(uint32_t *)(gid->raw + 4);
-	if (hi == htonl(0xfe800000) && lo == 0)
-		return 1;
+	uint32_t hi = gid->u32[0];
+	uint32_t lo = gid->u32[1];
 
-	return 0;
+	return hi == htonl(0xfe800000) && lo == 0;
 }
 
 static uint16_t get_vlan_id(union ibv_gid *gid)
-- 
1.7.3.4

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