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 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
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-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From 4110e02eb45ea447ec6f5459c9934de0a273fb91 Mon Sep 17 00:00:00 2001
From: Benjamin Poirier bpoirier@suse.com Date: Mon, 11 Dec 2017 16:26:40 +0900 Subject: e1000e: Fix e1000_check_for_copper_link_ich8lan return value.
From: Benjamin Poirier bpoirier@suse.com
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.
Reported-by: Christian Hesse list@eworm.de Reported-by: Gabriel C nix.or.die@gmail.com Link: https://bugzilla.kernel.org/show_bug.cgi?id=198047 Fixes: 19110cfbb34d ("e1000e: Separate signaling for link check/link up") Signed-off-by: Benjamin Poirier bpoirier@suse.com Tested-by: Aaron Brown aaron.f.brown@intel.com Tested-by: Christian Hesse list@eworm.de Signed-off-by: Jeff Kirsher jeffrey.t.kirsher@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/net/ethernet/intel/e1000e/ich8lan.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-)
--- a/drivers/net/ethernet/intel/e1000e/ich8lan.c +++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c @@ -1364,6 +1364,9 @@ 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) { @@ -1379,7 +1382,7 @@ 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 @@ -1611,10 +1614,12 @@ 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 bpoirier@suse.com are
queue-4.9/e1000e-fix-e1000_check_for_copper_link_ich8lan-return-value.patch