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[11/21] qedf: Check if link is alraedy up when receiving a link up event from qed.

Message ID 20180425130905.6385-12-chad.dupuis@cavium.com (mailing list archive)
State Accepted
Headers show

Commit Message

Dupuis, Chad April 25, 2018, 1:08 p.m. UTC 
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
---
 drivers/scsi/qedf/qedf_main.c | 5 +++++
 1 file changed, 5 insertions(+)
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Patch

diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c
index 64491ae60059..866989ccd66e 100644
--- a/drivers/scsi/qedf/qedf_main.c
+++ b/drivers/scsi/qedf/qedf_main.c
@@ -485,6 +485,11 @@  static void qedf_link_update(void *dev, struct qed_link_output *link)
 	struct qedf_ctx *qedf = (struct qedf_ctx *)dev;
 
 	if (link->link_up) {
+		if (atomic_read(&qedf->link_state) == QEDF_LINK_UP) {
+			QEDF_INFO((&qedf->dbg_ctx), QEDF_LOG_DISC,
+			    "Ignoring link up event as link is already up.\n");
+			return;
+		}
 		QEDF_ERR(&(qedf->dbg_ctx), "LINK UP (%d GB/s).\n",
 		    link->speed / 1000);