Bharadwaj Yadavalli wrote:
> 
> Can somebody kindly explain me why the implementation of
> csum_partial_copy_from_user()
> in linux/arch/alpha/lib/csum_partial_copy.c returns a 16-bit
> checksum whereas its x86
> counterpart in linux/linux/arch/i386/lib/checksum.S returns
> 32-bit checksum?

it's only a partial checksum - the checksum can be computed
from multiples of 16 bits, which then have to be added together
to get the final value. see csum_fold() and rfc1071.



-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/