Lines Matching +full:half +full:- +full:bit

1 /* SPDX-License-Identifier: GPL-2.0-or-later */
13  * and adds in "sum" (32-bit), while copying the block to dst.
14  * If an access exception occurs on src or dst, it stores -EFAULT
36  * turns a 32-bit partial checksum (e.g. from csum_partial) into a
37  * 1's complement 16-bit checksum.
43 	/* swap the two 16-bit halves of sum */  in csum_fold()
45 	/* if there is a carry from adding the two 16-bit halves,  in csum_fold()
46 	   it will carry from the lower half into the upper half,  in csum_fold()
47 	   giving us the correct sum in the upper half. */  in csum_fold()
84  * computes the checksum of the TCP/UDP pseudo-header
85  * returns a 16-bit checksum, already complemented
118  * of 32-bit words and is always >= 5.
127 	for (i = 0; i < ihl - 1; i++, ptr++)  in ip_fast_csum_nofold()
140 	    : "r" (ihl - 2), "r" (*(const u32 *)iph), "r" (*ptr)  in ip_fast_csum_nofold()
154  * and adds in "sum" (32-bit)
156  * returns a 32-bit number suitable for feeding into itself
162  * it's best to have buff aligned on a 32-bit boundary
200  * this routine is used for miscellaneous IP-like checksums, mainly