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#ifdef __powerpc__
#define VMX_ALIGN 16
#define VMX_ALIGN_MASK (VMX_ALIGN-1)
static unsigned int crc32_align(unsigned int crc, unsigned char *p,
unsigned long len)
{
while (len--)
crc = crc_table[(crc ^ *p++) & 0xff] ^ (crc >> 8);
return crc;
}
unsigned int __F(unsigned int crc, unsigned char *p,
unsigned long len);
unsigned int F(unsigned int crc, unsigned char *p,
unsigned long len)
{
unsigned int prealign;
unsigned int tail;
crc ^= 0xffffffff;
if (len < VMX_ALIGN + VMX_ALIGN_MASK) {
crc = crc32_align(crc, p, len);
goto out;
}
if ((unsigned long)p & VMX_ALIGN_MASK) {
prealign = VMX_ALIGN - ((unsigned long)p & VMX_ALIGN_MASK);
crc = crc32_align(crc, p, prealign);
len -= prealign;
p += prealign;
}
crc = __F(crc, p, len & ~VMX_ALIGN_MASK);
tail = len & VMX_ALIGN_MASK;
if (tail) {
p += len & ~VMX_ALIGN_MASK;
crc = crc32_align(crc, p, tail);
}
out:
crc ^= 0xffffffff;
return crc;
}
#endif /* __powerpc__ */
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