From fc355e078a830c40f6245a55ecfff6481a4bcf57 Mon Sep 17 00:00:00 2001 From: Emil Tantilov Date: Thu, 9 Jun 2016 10:45:34 -0700 Subject: [PATCH] ixgbevf: fix NACK check in ixgbevf_set_uc_addr_vf() Fix the NACK check in ixgbevf_set_uc_addr_vf() for instances where index != 0. Signed-off-by: Emil Tantilov Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ixgbevf/vf.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgbevf/vf.c b/drivers/net/ethernet/intel/ixgbevf/vf.c index e670d3b19c3c..aa2b1e88f861 100644 --- a/drivers/net/ethernet/intel/ixgbevf/vf.c +++ b/drivers/net/ethernet/intel/ixgbevf/vf.c @@ -256,7 +256,7 @@ static s32 ixgbevf_get_mac_addr_vf(struct ixgbe_hw *hw, u8 *mac_addr) static s32 ixgbevf_set_uc_addr_vf(struct ixgbe_hw *hw, u32 index, u8 *addr) { struct ixgbe_mbx_info *mbx = &hw->mbx; - u32 msgbuf[3]; + u32 msgbuf[3], msgbuf_chk; u8 *msg_addr = (u8 *)(&msgbuf[1]); s32 ret_val; @@ -268,6 +268,8 @@ static s32 ixgbevf_set_uc_addr_vf(struct ixgbe_hw *hw, u32 index, u8 *addr) */ msgbuf[0] |= index << IXGBE_VT_MSGINFO_SHIFT; msgbuf[0] |= IXGBE_VF_SET_MACVLAN; + msgbuf_chk = msgbuf[0]; + if (addr) ether_addr_copy(msg_addr, addr); ret_val = mbx->ops.write_posted(hw, msgbuf, 3); @@ -275,12 +277,12 @@ static s32 ixgbevf_set_uc_addr_vf(struct ixgbe_hw *hw, u32 index, u8 *addr) if (!ret_val) ret_val = mbx->ops.read_posted(hw, msgbuf, 3); - msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS; + if (!ret_val) { + msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS; - if (!ret_val) - if (msgbuf[0] == - (IXGBE_VF_SET_MACVLAN | IXGBE_VT_MSGTYPE_NACK)) - ret_val = -ENOMEM; + if (msgbuf[0] == (msgbuf_chk | IXGBE_VT_MSGTYPE_NACK)) + return -ENOMEM; + } return ret_val; } -- 2.20.1