165 __wsum __csum_partial(const void *buff, int len, __wsum sum);
167 static inline __wsum csum_partial(const void *buff, int len, __wsum sum)  in csum_partial()  argument
171 			sum = csum_add(sum, (__force __wsum)*(const u16 *)buff);  in csum_partial()
173 			sum = csum_add(sum, (__force __wsum)*(const u32 *)buff);  in csum_partial()
176 					    *(const u16 *)(buff + 4));  in csum_partial()
179 					    *(const u32 *)(buff + 4));  in csum_partial()
182 					    *(const u16 *)(buff + 8));  in csum_partial()
185 					    *(const u32 *)(buff + 8));  in csum_partial()
188 					    *(const u16 *)(buff + 12));  in csum_partial()
191 					    *(const u32 *)(buff + 12));  in csum_partial()
193 		sum = csum_add(sum, ip_fast_csum_nofold(buff, len >> 2));  in csum_partial()
195 		sum = __csum_partial(buff, len, sum);  in csum_partial()
204 static inline __sum16 ip_compute_csum(const void *buff, int len)  in ip_compute_csum()  argument
206 	return csum_fold(csum_partial(buff, len, 0));  in ip_compute_csum()