Re: [PATCH] x86: crypto: fix building crc32c with clang ias

[Sedat Dilek]

On Thu, Jul 23, 2020 at 9:57 AM Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> wrote:
>
> On Wed, May 27, 2020 at 04:17:40PM +0200, Arnd Bergmann wrote:
> > The clang integrated assembler complains about movzxw:
> >
> > arch/x86/crypto/crc32c-pcl-intel-asm_64.S:173:2: error: invalid instruction mnemonic 'movzxw'
> >
> > It seems that movzwq is the mnemonic that it expects instead,
> > and this is what objdump prints when disassembling the file.
> >
> > Fixes: 6a8ce1ef3940 ("crypto: crc32c - Optimize CRC32C calculation with PCLMULQDQ instruction")
> > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> > ---
> >  arch/x86/crypto/crc32c-pcl-intel-asm_64.S | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
>
> Patch applied.  Thanks.
>

Thanks you very much.

Now we have all x86/crypto patches to be able to use Clang's
Integrated Assembler (IAS) and build with `make LLVM_IAS=1`.

- Sedat -

[1] https://github.com/ClangBuiltLinux/linux/issues/1049#issuecomment-662609378