Lines Matching refs:buff
46 static unsigned int do_csum(const unsigned char *buff, int len) in do_csum() argument
53 odd = 1 & (unsigned long) buff; in do_csum()
56 result += (*buff << 8); in do_csum()
58 result = *buff; in do_csum()
61 buff++; in do_csum()
64 if (2 & (unsigned long) buff) { in do_csum()
65 result += *(unsigned short *) buff; in do_csum()
67 buff += 2; in do_csum()
70 const unsigned char *end = buff + ((unsigned)len & ~3); in do_csum()
73 unsigned int w = *(unsigned int *) buff; in do_csum()
74 buff += 4; in do_csum()
78 } while (buff < end); in do_csum()
83 result += *(unsigned short *) buff; in do_csum()
84 buff += 2; in do_csum()
89 result += *buff; in do_csum()
91 result += (*buff << 8); in do_csum()
125 __wsum csum_partial(const void *buff, int len, __wsum wsum) in csum_partial() argument
128 unsigned int result = do_csum(buff, len); in csum_partial()
142 __sum16 ip_compute_csum(const void *buff, int len) in ip_compute_csum() argument
144 return (__force __sum16)~do_csum(buff, len); in ip_compute_csum()