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net: stmmac: RX buffer size must be 16 byte aligned

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[ Upstream commit 8d558f0294fe92e04af192e221d0d0f6a180ee7b ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jose Abreu 2019-12-18 11:17:40 +01:00 committed by Greg Kroah-Hartman
parent 7bd525029b
commit 2fbdfb72b6
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
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@ -55,7 +55,7 @@
#include <linux/of_mdio.h>
#include "dwmac1000.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 */