bnx2x: Don't report link down if has been already down

Author: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c
index c4bc006..ee90835 100644 (file)
--- a/drivers/net/bnx2x_main.c
+++ b/drivers/net/bnx2x_main.c
@@ -2458,6 +2458,7 @@ static void bnx2x_init_vn_minmax(struct bnx2x *bp, int func)
 /* This function is called upon link interrupt */
 static void bnx2x_link_attn(struct bnx2x *bp)
 {
+       u32 prev_link_status = bp->link_vars.link_status;
        /* Make sure that we are synced with the current statistics */
        bnx2x_stats_handle(bp, STATS_EVENT_STOP);
 
@@ -2490,8 +2491,9 @@ static void bnx2x_link_attn(struct bnx2x *bp)
                        bnx2x_stats_handle(bp, STATS_EVENT_LINK_UP);
        }
 
-       /* indicate link status */
-       bnx2x_link_report(bp);
+       /* indicate link status only if link status actually changed */
+       if (prev_link_status != bp->link_vars.link_status)
+               bnx2x_link_report(bp);
 
        if (IS_E1HMF(bp)) {
                int port = BP_PORT(bp);