The following error was reported when running gpt_ut which is related
to crc32_update().
"load of misaligned address 0x001ffeff78cc for type 'const uint64_t',
which requires 8 byte alignment".
This patch preprocesses the first several bytes to make the buf address
passed to __crc32_d or__crc32_cd is 8 byte aligned. And finally process
the trailing bytes.
For function spdk_crc32c_update in crc32c.c, memcpy was used to avoid
misaligned load problem. Update it with above solution to reduce extra
overhead.
Signed-off-by: Richael Zhuang <richael.zhuang@arm.com>
Change-Id: I7c7aaa41e1c042a96668158818b06729fb3ceec6
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16801
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
fed358a0e7