linux-kernel - [GIT PULL] metag architecture fix

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Message-ID: <51DD38F5.2030101@imgtec.com>
Date:	Wed, 10 Jul 2013 11:35:33 +0100
From:	James Hogan <james.hogan@...tec.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
CC:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: [GIT PULL] metag architecture fix

Hi Linus,

Please pull this single arch/metag fix for a network checksum bug
(discovered after you merged the other metag changes).

Thanks
James

The following changes since commit 8bb495e3f02401ee6f76d1b1d77f3ac9f079e376:

  Linux 3.10 (2013-06-30 15:13:29 -0700)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag.git tags/metag-fixes-for-v3.11-1

for you to fetch changes up to d903bca9bc542bd6d60019f9f761be15ad79c956:

  metag: checksum.h: fix carry in csum_tcpudp_nofold (2013-07-09 11:09:17 +0100)

----------------------------------------------------------------
arch/metag fixes for v3.11

This is just a single fix to fix bad UDP checksums sometimes being
generated to IP addresses *.*.255.255.

----------------------------------------------------------------
James Hogan (1):
      metag: checksum.h: fix carry in csum_tcpudp_nofold

 arch/metag/include/asm/checksum.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/metag/include/asm/checksum.h b/arch/metag/include/asm/checksum.h
index 999bf76..08dd1cc 100644
--- a/arch/metag/include/asm/checksum.h
+++ b/arch/metag/include/asm/checksum.h
@@ -64,7 +64,8 @@ static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
 					__wsum sum)
 {
 	unsigned long len_proto = (proto + len) << 8;
-	asm ("ADD    %0, %0, %1\n"
+	asm ("ADDS   %0, %0, %1\n"
+	     "ADDCS  %0, %0, #1\n"
 	     "ADDS   %0, %0, %2\n"
 	     "ADDCS  %0, %0, #1\n"
 	     "ADDS   %0, %0, %3\n"

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