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authorJonathan Corbet <corbet@lwn.net>2018-04-27 17:13:20 -0600
committerJonathan Corbet <corbet@lwn.net>2018-04-27 17:13:20 -0600
commitccf2b067948a8f90fc3d7990c57283e7e404d004 (patch)
tree298e69b6f3e1eef45ac50ba68abe3dd175c4dc8c /drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
parente27a20f104673f8ada70c5d32430a7f4c577fe95 (diff)
parent6d08b06e67cd117f6992c46611dfb4ce267cd71e (diff)
Merge tag 'v4.17-rc2' into docs-next
Merge -rc2 to pick up the changes to Documentation/core-api/kernel-api.rst that hit mainline via the networking tree. In their absence, subsequent patches cannot be applied.
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/stmmac_main.c')
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/stmmac_main.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 9a16931ce39d..b65e2d144698 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -3495,8 +3495,13 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue)
/* ACS is set; GMAC core strips PAD/FCS for IEEE 802.3
* Type frames (LLC/LLC-SNAP)
+ *
+ * llc_snap is never checked in GMAC >= 4, so this ACS
+ * feature is always disabled and packets need to be
+ * stripped manually.
*/
- if (unlikely(status != llc_snap))
+ if (unlikely(priv->synopsys_id >= DWMAC_CORE_4_00) ||
+ unlikely(status != llc_snap))
frame_len -= ETH_FCS_LEN;
if (netif_msg_rx_status(priv)) {