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

Orabug: 26402533, 26325599, 26366387

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>
(cherry picked from commit 520ad89a54edea84496695d528f73ddcf4a52ea4)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
Signed-off-by: Somasundaram Krishnasamy <somasundaram.krishnasamy@oracle.com>

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 9b03abc4c6b6ecfb3920b0ff37c4bcfb683d5f0a..483f2739fde6a22edc8fe5500120ec04bb9ce755 100644 (file)
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -5541,8 +5541,9 @@ static int bnxt_hwrm_phy_qcaps(struct bnxt *bp)
                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);