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authorJose Abreu <Jose.Abreu@synopsys.com>2019-12-18 11:17:40 +0100
committerDavid S. Miller <davem@davemloft.net>2019-12-18 12:04:17 -0800
commit8d558f0294fe92e04af192e221d0d0f6a180ee7b (patch)
treec88f2f1b7c68129f62839fe7778dda8afc40858e /drivers/net
parent11d55fd9975f8e46a0e5e19c14899544e81e1e15 (diff)
downloadlinux-8d558f0294fe92e04af192e221d0d0f6a180ee7b.tar.gz
net: stmmac: RX buffer size must be 16 byte aligned
We need to align the RX buffer size to at least 16 byte so that IP
doesn't mis-behave. This is required by HW.

Changes from v2:
- Align UP and not DOWN (David)

Fixes: 7ac6653a085b ("stmmac: Move the STMicroelectronics driver")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/stmmac_main.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index acb14a96243e..f507a9bee15b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -46,7 +46,7 @@
 #include "dwxgmac2.h"
 #include "hwif.h"
 
-#define	STMMAC_ALIGN(x)		__ALIGN_KERNEL(x, SMP_CACHE_BYTES)
+#define	STMMAC_ALIGN(x)		ALIGN(ALIGN(x, SMP_CACHE_BYTES), 16)
 #define	TSO_MAX_BUFF_SIZE	(SZ_16K - 1)
 
 /* Module parameters */