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Date: Wed, 18 Dec 2019 11:17:40 +0100 From: Jose Abreu <Jose.Abreu@...opsys.com> To: netdev@...r.kernel.org Cc: Joao Pinto <Joao.Pinto@...opsys.com>, Jakub Kicinski <jakub.kicinski@...ronome.com>, Jose Abreu <Jose.Abreu@...opsys.com>, Giuseppe Cavallaro <peppe.cavallaro@...com>, Alexandre Torgue <alexandre.torgue@...com>, Jose Abreu <Jose.Abreu@...opsys.com>, "David S. Miller" <davem@...emloft.net>, Maxime Coquelin <mcoquelin.stm32@...il.com>, linux-stm32@...md-mailman.stormreply.com, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org Subject: [PATCH net v3 6/9] 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@...opsys.com> --- Cc: Giuseppe Cavallaro <peppe.cavallaro@...com> Cc: Alexandre Torgue <alexandre.torgue@...com> Cc: Jose Abreu <joabreu@...opsys.com> Cc: "David S. Miller" <davem@...emloft.net> Cc: Maxime Coquelin <mcoquelin.stm32@...il.com> Cc: netdev@...r.kernel.org Cc: linux-stm32@...md-mailman.stormreply.com Cc: linux-arm-kernel@...ts.infradead.org Cc: linux-kernel@...r.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 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 */ -- 2.7.4
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