This is a note to let you know that I've just added the patch titled
powerpc/64: Fix checksum folding in csum_add()
to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: powerpc-64-fix-checksum-folding-in-csum_add.patch and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From foo@baz Tue Dec 12 13:26:17 CET 2017
From: Shile Zhang shile.zhang@nokia.com Date: Sat, 4 Feb 2017 17:03:40 +0800 Subject: powerpc/64: Fix checksum folding in csum_add()
From: Shile Zhang shile.zhang@nokia.com
[ Upstream commit 6ad966d7303b70165228dba1ee8da1a05c10eefe ]
Paul's patch to fix checksum folding, commit b492f7e4e07a ("powerpc/64: Fix checksum folding in csum_tcpudp_nofold and ip_fast_csum_nofold") missed a case in csum_add(). Fix it.
Signed-off-by: Shile Zhang shile.zhang@nokia.com Acked-by: Paul Mackerras paulus@ozlabs.org Signed-off-by: Michael Ellerman mpe@ellerman.id.au Signed-off-by: Sasha Levin alexander.levin@verizon.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/powerpc/include/asm/checksum.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/powerpc/include/asm/checksum.h +++ b/arch/powerpc/include/asm/checksum.h @@ -100,7 +100,7 @@ static inline __wsum csum_add(__wsum csu
#ifdef __powerpc64__ res += (__force u64)addend; - return (__force __wsum)((u32)res + (res >> 32)); + return (__force __wsum) from64to32(res); #else asm("addc %0,%0,%1;" "addze %0,%0;"
Patches currently in stable-queue which might be from shile.zhang@nokia.com are
queue-4.9/powerpc-64-fix-checksum-folding-in-csum_add.patch