csum_partial_copy_to_user  143 include/asm-x86/checksum_64.h extern __wsum csum_partial_copy_to_user(const void *src, void __user *dst,
csum_partial_copy_to_user  149 include/asm-x86/checksum_64.h #define csum_and_copy_to_user csum_partial_copy_to_user