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bnxt_en: Return -EOPNOTSUPP for ETHTOOL_GREGS on VFs.

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Debug firmware commands are not supported on VFs to read registers.
This patch avoids logging unnecessary access_denied error on VFs
when user calls ETHTOOL_GREGS.

By returning error in get_regs_len() method on the VF, the get_regs()
method will not be called.

Fixes: b5d600b027eb ("bnxt_en: Add support for 'ethtool -d'")
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vasundhara Volam 2020-09-20 21:08:57 -04:00 committed by David S. Miller
parent a539069081
commit f0f47b2f8c
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
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@ -1322,6 +1322,9 @@ static int bnxt_get_regs_len(struct net_device *dev)
struct bnxt *bp = netdev_priv(dev);
int reg_len;
if (!BNXT_PF(bp))
return -EOPNOTSUPP;
reg_len = BNXT_PXP_REG_LEN;
if (bp->fw_cap & BNXT_FW_CAP_PCIE_STATS_SUPPORTED)