31 				      int len, __wsum sum, int *err_ptr)  in csum_and_copy_from_user()  argument
34 		return csum_partial_copy_from_user(src, dst, len, sum, err_ptr);  in csum_and_copy_from_user()
39 	return sum;  in csum_and_copy_from_user()
45 (const void *src, void __user *dst, int len, __wsum sum, int *err_ptr)  in csum_and_copy_to_user()  argument
47 	sum = csum_partial(src, len, sum);  in csum_and_copy_to_user()
51 			return sum;  in csum_and_copy_to_user()
90 	u32 sum = (__force u32)csum2;  in csum_block_add()  local
92 		sum = ((sum&0xFF00FF)<<8)+((sum>>8)&0xFF00FF);  in csum_block_add()
93 	return csum_add(csum, (__force __wsum)sum);  in csum_block_add()
105 	u32 sum = (__force u32)csum2;  in csum_block_sub()  local
107 		sum = ((sum&0xFF00FF)<<8)+((sum>>8)&0xFF00FF);  in csum_block_sub()
108 	return csum_sub(csum, (__force __wsum)sum);  in csum_block_sub()
116 static inline __wsum csum_partial_ext(const void *buff, int len, __wsum sum)  in csum_partial_ext()  argument
118 	return csum_partial(buff, len, sum);  in csum_partial_ext()
123 static inline void csum_replace4(__sum16 *sum, __be32 from, __be32 to)  in csum_replace4()  argument
125 	*sum = csum_fold(csum_add(csum_sub(~csum_unfold(*sum), from), to));  in csum_replace4()
134 static inline void csum_replace2(__sum16 *sum, __be16 old, __be16 new)  in csum_replace2()  argument
136 	*sum = ~csum16_add(csum16_sub(~(*sum), old), new);  in csum_replace2()
140 void inet_proto_csum_replace4(__sum16 *sum, struct sk_buff *skb,
142 void inet_proto_csum_replace16(__sum16 *sum, struct sk_buff *skb,
146 static inline void inet_proto_csum_replace2(__sum16 *sum, struct sk_buff *skb,  in inet_proto_csum_replace2()  argument
150 	inet_proto_csum_replace4(sum, skb, (__force __be32)from,  in inet_proto_csum_replace2()