Commit b13120d2 authored by Bernd Schmidt's avatar Bernd Schmidt Committed by Bryan Wu
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Blackfin arch: fix bug - crashes in tcp_v4_send_reset 



Michael says that some bugs are crashes in tcp_v4_send_reset.
There's a missing clobber of "CC" in our checksum assembly
statement; fixing this makes the generated code look much saner.

Signed-off-by: default avatarBernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: default avatarBryan Wu <cooloney@kernel.org>
parent 7ad883a9

arch/blackfin/include/asm/checksum.h

+2 −1
Original line number Diff line number Diff line
@@ -78,7 +78,8 @@ csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len, 
                 "%0 = %0 + %4;\n\t"

                 "NOP;\n\t"

 		 : "=d" (sum)

		 : "d" (daddr), "d" (saddr), "d" ((ntohs(len)<<16)+proto*256), "d" (1), "0"(sum));

		 : "d" (daddr), "d" (saddr), "d" ((ntohs(len)<<16)+proto*256), "d" (1), "0"(sum)

		 : "CC");



	return (sum);

}