From: Maciej Fijalkowski Date: Fri, 8 Feb 2019 20:50:29 +0000 (-0800) Subject: ice: Fix the calculation of ICE_MAX_MTU X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=5ed5d316d90b1487c51b8973c2b845495f3558c0;p=openwrt%2Fstaging%2Fblogic.git ice: Fix the calculation of ICE_MAX_MTU Currently ICE_MAX_MTU subtracts only ETH_HLEN from max frame size and adds ETH_FCS_LEN and VLAN_HLEN, which is not what was intended. The ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN expression should be surrounded with parentheses. Wrap mentioned expression and take into account VLAN double tagging. Signed-off-by: Maciej Fijalkowski Signed-off-by: Anirudh Venkataramanan Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h index 55944e089558..89440775aea1 100644 --- a/drivers/net/ethernet/intel/ice/ice.h +++ b/drivers/net/ethernet/intel/ice/ice.h @@ -83,7 +83,7 @@ extern const char ice_drv_ver[]; #define ICE_DFLT_NETIF_M (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK) #define ICE_MAX_MTU (ICE_AQ_SET_MAC_FRAME_SIZE_MAX - \ - ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN) + (ETH_HLEN + ETH_FCS_LEN + (VLAN_HLEN * 2))) #define ICE_UP_TABLE_TRANSLATE(val, i) \ (((val) << ICE_AQ_VSI_UP_TABLE_UP##i##_S) & \