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

bnxt_en: Don't print "Link speed -1 no longer supported" messages.

to the 4.15-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: bnxt_en-don-t-print-link-speed-1-no-longer-supported-messages.patch and it can be found in the queue-4.15 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 foo@baz Fri Mar 16 15:11:08 CET 2018

From: Michael Chan michael.chan@broadcom.com Date: Wed, 6 Dec 2017 17:31:22 -0500 Subject: bnxt_en: Don't print "Link speed -1 no longer supported" messages.

From: Michael Chan michael.chan@broadcom.com

[ Upstream commit a8168b6cee6e9334dfebb4b9108e8d73794f6088 ]

On some dual port NICs, the 2 ports have to be configured with compatible link speeds. Under some conditions, a port's configured speed may no longer be supported. The firmware will send a message to the driver when this happens.

Improve this logic that prints out the warning by only printing it if we can determine the link speed that is no longer supported. If the speed is unknown or it is in autoneg mode, skip the warning message.

Reported-by: Thomas Bogendoerfer tbogendoerfer@suse.de Signed-off-by: Michael Chan michael.chan@broadcom.com Tested-by: Thomas Bogendoerfer tbogendoerfer@suse.de Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-)

--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -1706,12 +1706,16 @@ static int bnxt_async_event_process(stru

if (BNXT_VF(bp)) goto async_event_process_exit; - if (data1 & 0x20000) { + + /* print unsupported speed warning in forced speed mode only */ + if (!(link_info->autoneg & BNXT_AUTONEG_SPEED) && + (data1 & 0x20000)) { u16 fw_speed = link_info->force_link_speed; u32 speed = bnxt_fw_to_ethtool_speed(fw_speed);

- netdev_warn(bp->dev, "Link speed %d no longer supported\n", - speed); + if (speed != SPEED_UNKNOWN) + netdev_warn(bp->dev, "Link speed %d no longer supported\n", + speed); } set_bit(BNXT_LINK_SPEED_CHNG_SP_EVENT, &bp->sp_event); /* fall thru */

Patches currently in stable-queue which might be from michael.chan@broadcom.com are

queue-4.15/bnxt_en-don-t-print-link-speed-1-no-longer-supported-messages.patch queue-4.15/bnxt_en-uninitialized-variable-in-bnxt_tc_parse_actions.patch