61 	u32 res = (__force u32)csum;  in csum_add()
62 	res += (__force u32)addend;  in csum_add()
63 	return (__force __wsum)(res + (res < (__force u32)addend));  in csum_add()
74 	u16 res = (__force u16)csum;  in csum16_add()
76 	res += (__force u16)addend;  in csum16_add()
77 	return (__force __sum16)(res + (res < (__force u16)addend));  in csum16_add()
90 		return (__force __wsum)ror32((__force u32)sum, 8);  in csum_shift()
115 	return (__force __wsum)n;  in csum_unfold()
124 #define CSUM_MANGLED_0 ((__force __sum16)0xffff)
133 	__wsum tmp = csum_sub(~csum_unfold(*sum), (__force __wsum)from);  in csum_replace4()
135 	*sum = csum_fold(csum_add(tmp, (__force __wsum)to));  in csum_replace4()
167 	inet_proto_csum_replace4(sum, skb, (__force __be32)from,  in inet_proto_csum_replace2()
168 				 (__force __be32)to, pseudohdr);  in inet_proto_csum_replace2()
181 	delta = csum_sub((__force __wsum)csum_fold(csum),  in remcsum_adjust()
182 			 (__force __wsum)*psum);  in remcsum_adjust()
190 	*psum = csum_fold(csum_sub(delta, (__force __wsum)*psum));  in remcsum_unadjust()
195 	return (__force __wsum)-((__force u32)val);  in wsum_negate()