Messages in this thread | | | Date | Mon, 6 Feb 2023 09:51:42 -0700 | From | Nathan Chancellor <> | Subject | Re: arch/x86/crypto/curve25519-x86_64.c:609:3: error: inline assembly requires more registers than available |
| |
On Mon, Feb 06, 2023 at 11:52:01PM +0800, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > head: d2d11f342b179f1894a901f143ec7c008caba43e > commit: 07b586fe06625b0b610dc3d3a969c51913d143d4 crypto: x86/curve25519 - replace with formally verified implementation > date: 3 years ago > config: x86_64-buildonly-randconfig-r006-20230206 (https://download.01.org/0day-ci/archive/20230206/202302062324.HhzEZCF7-lkp@intel.com/config) > compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1) > reproduce (this is a W=1 build): > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=07b586fe06625b0b610dc3d3a969c51913d143d4 > git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > git fetch --no-tags linus master > git checkout 07b586fe06625b0b610dc3d3a969c51913d143d4 > # save the config file > mkdir build_dir && cp config build_dir/.config > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/crypto/ > > If you fix the issue, kindly add following tag where applicable > | Reported-by: kernel test robot <lkp@intel.com> > > All errors (new ones prefixed by >>): > > arch/x86/crypto/curve25519-x86_64.c:954:6: warning: variable 'carry' set but not used [-Wunused-but-set-variable] > u64 carry; > ^ > arch/x86/crypto/curve25519-x86_64.c:951:6: warning: variable 'carry0' set but not used [-Wunused-but-set-variable] > u64 carry0; > ^ > >> arch/x86/crypto/curve25519-x86_64.c:609:3: error: inline assembly requires more registers than available > " movq 0(%1), %%rdx;" /* f[0] */ > ^ > >> arch/x86/crypto/curve25519-x86_64.c:609:3: error: inline assembly requires more registers than available > 2 warnings and 2 errors generated.
https://github.com/ClangBuiltLinux/linux/issues/1589
Intel folks, this can probably just be sent to our list from now on.
Cheers, Nathan
| |