| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.4 114/165] net: stmmac: RX buffer size must be 16 byte aligned | Date | Sat, 11 Jan 2020 10:50:33 +0100 |
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From: Jose Abreu <Jose.Abreu@synopsys.com>
[ 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> --- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 1b4968e4a313..cfb60b20e625 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -45,7 +45,7 @@ #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 */ -- 2.20.1
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