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Message-Id: <1287727161-24671-5-git-send-email-vapier@gentoo.org> Date: Fri, 22 Oct 2010 01:59:21 -0400 From: Mike Frysinger <vapier@...too.org> To: netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net> Cc: uclinux-dist-devel@...ckfin.uclinux.org, Sonic Zhang <sonic.zhang@...log.com> Subject: [PATCH 5/5] netdev: bfin_mac: disable hardware checksum if writeback cache is enabled From: Sonic Zhang <sonic.zhang@...log.com> With writeback caches, corrupted RX packets will be sent up the stack without any error markings. Signed-off-by: Sonic Zhang <sonic.zhang@...log.com> Signed-off-by: Mike Frysinger <vapier@...too.org> --- drivers/net/bfin_mac.h | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/drivers/net/bfin_mac.h b/drivers/net/bfin_mac.h index 4827f6b..692187d 100644 --- a/drivers/net/bfin_mac.h +++ b/drivers/net/bfin_mac.h @@ -17,7 +17,14 @@ #include <linux/etherdevice.h> #include <linux/bfin_mac.h> +/* + * Disable hardware checksum for bug #5600 if writeback cache is + * enabled. Otherwize, corrupted RX packet will be sent up stack + * without error mark. + */ +#ifndef CONFIG_BFIN_EXTMEM_WRITEBACK #define BFIN_MAC_CSUM_OFFLOAD +#endif #define TX_RECLAIM_JIFFIES (HZ / 5) -- 1.7.3.1 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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