Patch "e1000e: Fix e1000_check_for_copper_link_ich8lan return value." has been added to the 3.18-stable tree

This is a note to let you know that I've just added the patch titled

    e1000e: Fix e1000_check_for_copper_link_ich8lan return value.

to the 3.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:

     e1000e-fix-e1000_check_for_copper_link_ich8lan-return-value.patch

and it can be found in the queue-3.18 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Benjamin Poirier <[email protected]>
Date: Mon, 11 Dec 2017 16:26:40 +0900
Subject: e1000e: Fix e1000_check_for_copper_link_ich8lan return value.

From: Benjamin Poirier <[email protected]>

commit 4110e02eb45ea447ec6f5459c9934de0a273fb91 upstream.

e1000e_check_for_copper_link() and e1000_check_for_copper_link_ich8lan() are the two functions that may be assigned to mac.ops.check_for_link when phy.media_type == e1000_media_type_copper. Commit 19110cfbb34d ("e1000e:
Separate signaling for link check/link up") changed the meaning of the return value of check_for_link for copper media but only adjusted the first function. This patch adjusts the second function likewise.

---
 drivers/net/ethernet/intel/e1000e/ich8lan.c |   11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

@@ -1299,6 +1299,9 @@ out:
  *  Checks to see of the link status of the hardware has changed.  If a
  *  change in link status has been detected, then we read the PHY registers
  *  to get the current speed/duplex if link exists.
+ *
+ *  Returns a negative error code (-E1000_ERR_*) or 0 (link down) or 1 (link
+ *  up).
  **/
 static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
 {

@@ -1313,7 +1316,7 @@ static s32 e1000_check_for_copper_link_i
 	 * Change or Rx Sequence Error interrupt.
 	 */
 	if (!mac->get_link_status)
-		return 0;
+		return 1;
 
 	/* First we want to see if the MII Status Register reports
 	 * link.  If so, then we want to get the current speed/duplex

@@ -1452,10 +1455,12 @@ static s32 e1000_check_for_copper_link_i
 	 * different link partner.
 	 */
 	ret_val = e1000e_config_fc_after_link_up(hw);
-	if (ret_val)
+	if (ret_val) {
 		e_dbg("Error configuring flow control\n");
+		return ret_val;
+	}
 
-	return ret_val;
+	return 1;
 }
 
 static s32 e1000_get_variants_ich8lan(struct e1000_adapter *adapter)

Patches currently in stable-queue which might be from [email protected] are

queue-3.18/e1000e-fix-e1000_check_for_copper_link_ich8lan-return-value.patch