Messages in this thread | | | Date | Mon, 25 Jul 2022 15:36:55 -0700 | From | Nathan Chancellor <> | Subject | Re: sound/soc/codecs/wm_adsp.c:1490:32: warning: taking address of packed member 'name' of class or structure 'wm_adsp_host_buf_coeff_v1' may result in an unaligned pointer value |
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On Mon, Jul 25, 2022 at 03:34:15PM -0700, Nathan Chancellor wrote: > On Tue, Jul 26, 2022 at 06:29:46AM +0800, kernel test robot wrote: > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > > head: e0dccc3b76fb35bb257b4118367a883073d7390e > > commit: 353bb6a5f2ac495f289b7c7a528c7d134c9a8ec4 ASoC: wm_adsp: Compressed stream DSP memory structs should be __packed > > date: 5 months ago > > config: arm-randconfig-r013-20220724 (https://download.01.org/0day-ci/archive/20220726/202207260648.ERQjXCRB-lkp@intel.com/config) > > compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 9e88cbcc403bdf82f29259ad60ff60a8fc4434a1) > > 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 > > # install arm cross compiling tool for clang build > > # apt-get install binutils-arm-linux-gnueabi > > # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=353bb6a5f2ac495f289b7c7a528c7d134c9a8ec4 > > git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > > git fetch --no-tags linus master > > git checkout 353bb6a5f2ac495f289b7c7a528c7d134c9a8ec4 > > # 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=arm SHELL=/bin/bash sound/soc/codecs/ > > > > If you fix the issue, kindly add following tag where applicable > > Reported-by: kernel test robot <lkp@intel.com> > > > > All warnings (new ones prefixed by >>): > > > > >> sound/soc/codecs/wm_adsp.c:1490:32: warning: taking address of packed member 'name' of class or structure 'wm_adsp_host_buf_coeff_v1' may result in an unaligned pointer value [-Waddress-of-packed-member] > > cs_dsp_remove_padding((u32 *)&coeff_v1.name, ARRAY_SIZE(coeff_v1.name)); > > ^~~~~~~~~~~~~ > > 1 warning generated. > > This warning is disabled in the main Makefile but a recent change in > LLVM has caused that check to fail, sorry for the noise :( > > https://github.com/ClangBuiltLinux/linux/issues/1674
Ah nevermind, looks like Fangrui already worked around this, it should be resolved on the next LLVM uprev:
https://github.com/llvm/llvm-project/commit/1d23f6c5a4f6ebb101c282f8f506588fe4d9e92f
Cheers, Nathan
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