Commit 0a5549ed authored Jun 23, 2009 by Arnd Bergmann

lib/checksum: fix one more thinko



When do_csum gets unaligned data, we really need to treat
the first byte as an even byte, not an odd byte, because
we swap the two halves later.

Found by Mike's checksum-selftest module.

Reported-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

parent 20c1f641

lib/checksum.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -57,9 +57,9 @@ static unsigned int do_csum(const unsigned char *buff, int len)
		odd = 1 & (unsigned long) buff;
		if (odd) {
		#ifdef __LITTLE_ENDIAN
		result = *buff;
		#else
		result += (*buff << 8);
		#else
		result = *buff;
		#endif
		len--;
		buff++;