Commit e374d17c authored by Kyle McMartin's avatar Kyle McMartin

parisc: fix miscompilation of ip_fast_csum with gcc >= 4.3

ip_fast_csum needs an asm "memory" clobber, otherwise the aggressive
optimizations in gcc-4.3 cause it to be miscompiled.
Signed-off-by: default avatarKyle McMartin <>
parent f4441b62
......@@ -65,7 +65,7 @@ static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
: "=r" (sum), "=r" (iph), "=r" (ihl)
: "1" (iph), "2" (ihl)
: "r19", "r20", "r21" );
: "r19", "r20", "r21", "memory");
return (__force __sum16)sum;
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