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

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

net/appletalk/ddp.c

+2 −7
Original line number Diff line number Diff line
@@ -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;

}