[PATCH] fix warning in drivers/net/mlx4/mcg.c

[Ingo Molnar]

fix warning:

  drivers/net/mlx4/mcg.c: In function âmlx4_multicast_attachâ:
  drivers/net/mlx4/mcg.c:217: warning: integer overflow in expression

there was no real danger of overflow here though.

md5:
   db8eb55620f886c03854a2abb2ce6c3f  mcg.o.before.asm
   db8eb55620f886c03854a2abb2ce6c3f  mcg.o.after.asm

Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
 drivers/net/mlx4/mcg.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/net/mlx4/mcg.c b/drivers/net/mlx4/mcg.c
index c83f88c..d1230a8 100644
--- a/drivers/net/mlx4/mcg.c
+++ b/drivers/net/mlx4/mcg.c
@@ -215,7 +215,7 @@ int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
 
 	if (block_mcast_loopback)
 		mgm->qp[members_count++] = cpu_to_be32((qp->qpn & MGM_QPN_MASK) |
-						       (1 << MGM_BLCK_LB_BIT));
+						       (1U << MGM_BLCK_LB_BIT));
 	else
 		mgm->qp[members_count++] = cpu_to_be32(qp->qpn & MGM_QPN_MASK);
 
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