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Author SHA1 Message Date
Qu Wenruo 8b826e1cb7 btrfs-progs: crypto: declare SHA256 x86 optimized implementation 
The optimized implementation sha256_process_x86() is not declared
anywhere, this can be caught by -Wmissing-prototypes option.

Just declare it properly in sha.h.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2023-05-26 18:02:31 +02:00
David Sterba 6a7a0d8af8 btrfs-progs: crypto: add accelerated SHA256 implementation 
Copy sha256-x86.c from https://github.com/noloader/SHA-Intrinsics, that
uses the compiler intrinsics to implement the update step with the
native x86_64 instructions.

To avoid dependencies of the reference code and the x86 version, check
runtime support only if the compiler also supports -msha.

Signed-off-by: David Sterba <dsterba@suse.com>
 2023-02-28 19:49:30 +01:00