Patch "bnxt_en: Ignore 0 value in autoneg supported speed from firmware." has been added to the 4.9-stable tree

Patch "bnxt_en: Ignore 0 value in autoneg supported speed from firmware." has been added to the 4.9-stable tree

[gregkh]

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

    bnxt_en: Ignore 0 value in autoneg supported speed from firmware.

to the 4.9-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:
     bnxt_en-ignore-0-value-in-autoneg-supported-speed-from-firmware.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 foo@baz Mon Dec 18 14:12:34 CET 2017
From: Michael Chan <michael.chan@broadcom.com>
Date: Wed, 8 Mar 2017 18:44:35 -0500
Subject: bnxt_en: Ignore 0 value in autoneg supported speed from firmware.

From: Michael Chan <michael.chan@broadcom.com>


[ Upstream commit 520ad89a54edea84496695d528f73ddcf4a52ea4 ]

In some situations, the firmware will return 0 for autoneg supported
speed.  This may happen if the firmware detects no SFP module, for
example.  The driver should ignore this so that we don't end up with
an invalid autoneg setting with nothing advertised.  When SFP module
is inserted, we'll get the updated settings from firmware at that time.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -5132,8 +5132,9 @@ static int bnxt_hwrm_phy_qcaps(struct bn
 		bp->lpi_tmr_hi = le32_to_cpu(resp->valid_tx_lpi_timer_high) &
 				 PORT_PHY_QCAPS_RESP_TX_LPI_TIMER_HIGH_MASK;
 	}
-	link_info->support_auto_speeds =
-		le16_to_cpu(resp->supported_speeds_auto_mode);
+	if (resp->supported_speeds_auto_mode)
+		link_info->support_auto_speeds =
+			le16_to_cpu(resp->supported_speeds_auto_mode);
 
 hwrm_phy_qcaps_exit:
 	mutex_unlock(&bp->hwrm_cmd_lock);


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

queue-4.9/bnxt_en-ignore-0-value-in-autoneg-supported-speed-from-firmware.patch