ceph/src/common/crc32c_intel_fast.h
Sage Weil 366b608f54 arch/intel: use intel probe instructions for x86_64 only
Not LP64, which includes ppc64 and clearly does not build.

Fixes: #6283
Signed-off-by: Sage Weil <sage@inktank.com>
Reviewed-by: Greg Farnum <greg@inktank.com>
2013-09-24 10:17:37 -07:00

29 lines
495 B
C

#ifndef CEPH_COMMON_CRC32C_INTEL_FAST_H
#define CEPH_COMMON_CRC32C_INTEL_FAST_H
#ifdef __cplusplus
extern "C" {
#endif
/* is the fast version compiled in */
extern int ceph_crc32c_intel_fast_exists(void);
#ifdef __x86_64__
extern uint32_t ceph_crc32c_intel_fast(uint32_t crc, unsigned char const *buffer, unsigned len);
#else
static inline uint32_t ceph_crc32c_intel_fast(uint32_t crc, unsigned char const *buffer, unsigned len)
{
return 0;
}
#endif
#ifdef __cplusplus
}
#endif
#endif