Commit f7a3a1d8 authored by Joe Perches's avatar Joe Perches Committed by David S. Miller

appletalk/ddp.c: Neaten checksum function

atalk_sum_partial can now use the rol16 function in bitops.h
Signed-off-by: default avatarJoe Perches <joe@perches.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent fd5c0027
......@@ -922,13 +922,8 @@ static unsigned long atalk_sum_partial(const unsigned char *data,
{
/* This ought to be unwrapped neatly. I'll trust gcc for now */
while (len--) {
sum += *data;
sum <<= 1;
if (sum & 0x10000) {
sum++;
sum &= 0xffff;
}
data++;
sum += *data++;
sum = rol16(sum, 1);
}
return sum;
}
......
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