133 	const unsigned int *word = iph;  in ip_fast_csum()  local
134 	const unsigned int *stop = word + ihl;  in ip_fast_csum()
138 	csum = word[0];  in ip_fast_csum()
139 	csum += word[1];  in ip_fast_csum()
140 	carry = (csum < word[1]);  in ip_fast_csum()
143 	csum += word[2];  in ip_fast_csum()
144 	carry = (csum < word[2]);  in ip_fast_csum()
147 	csum += word[3];  in ip_fast_csum()
148 	carry = (csum < word[3]);  in ip_fast_csum()
151 	word += 4;  in ip_fast_csum()
153 		csum += *word;  in ip_fast_csum()
154 		carry = (csum < *word);  in ip_fast_csum()
156 		word++;  in ip_fast_csum()
157 	} while (word != stop);  in ip_fast_csum()