From: Nathan Chancellor <nathan@kernel.org>
To: kernel test robot <lkp@intel.com>
Cc: Simon Trimmer <simont@opensource.cirrus.com>,
llvm@lists.linux.dev, kbuild-all@lists.01.org,
linux-kernel@vger.kernel.org, Mark Brown <broonie@kernel.org>
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
Date: Mon, 25 Jul 2022 15:34:15 -0700 [thread overview]
Message-ID: <Yt8aZ3OZ7lJBgf1V@dev-arch.thelio-3990X> (raw)
In-Reply-To: <202207260648.ERQjXCRB-lkp@intel.com>
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
Cheers,
Nathan
WARNING: multiple messages have this Message-ID (diff)
From: Nathan Chancellor <nathan@kernel.org>
To: kbuild-all@lists.01.org
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
Date: Mon, 25 Jul 2022 15:34:15 -0700 [thread overview]
Message-ID: <Yt8aZ3OZ7lJBgf1V@dev-arch.thelio-3990X> (raw)
In-Reply-To: <202207260648.ERQjXCRB-lkp@intel.com>
[-- Attachment #1: Type: text/plain, Size: 2222 bytes --]
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(a)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
Cheers,
Nathan
next prev parent reply other threads:[~2022-07-25 22:34 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-25 22:29 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 kernel test robot
2022-07-25 22:34 ` Nathan Chancellor [this message]
2022-07-25 22:34 ` Nathan Chancellor
2022-07-25 22:36 ` Nathan Chancellor
2022-07-25 22:36 ` Nathan Chancellor
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