From: Andy Shevchenko <andriy.shevchenko@linux.intel.com> To: kernel test robot <lkp@intel.com> Cc: Giovanni Cabiddu <giovanni.cabiddu@intel.com>, llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Herbert Xu <herbert@gondor.apana.org.au>, Fiona Trahe <fiona.trahe@intel.com>, Wojciech Ziemba <wojciech.ziemba@intel.com> Subject: Re: drivers/crypto/qat/qat_c62xvf/adf_c62xvf_hw_data.c:102:28: warning: taking address of packed member 'csr_ops' of class or structure 'adf_hw_device_data' may result in an unaligned pointer value Date: Wed, 1 Sep 2021 14:18:17 +0300 [thread overview] Message-ID: <YS9heetW+E+1Nr1w@smile.fi.intel.com> (raw) In-Reply-To: <202109010001.5r11IRSX-lkp@intel.com> On Wed, Sep 01, 2021 at 12:19:08AM +0800, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > head: b91db6a0b52e019b6bdabea3f1dbe36d85c7e52c > commit: f9c697c4bfc6002d92e8015b65fe2a79acadb416 crypto: qat - split transport CSR access logic > date: 10 months ago > config: i386-randconfig-r012-20210831 (attached as .config) > compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 4b1fde8a2b681dad2ce0c082a5d6422caa06b0bc) > 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=f9c697c4bfc6002d92e8015b65fe2a79acadb416 > git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > git fetch --no-tags linus master > git checkout f9c697c4bfc6002d92e8015b65fe2a79acadb416 > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=i386 > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@intel.com> > > All warnings (new ones prefixed by >>): > > clang-14: warning: optimization flag '-falign-jumps=0' is not supported [-Wignored-optimization-argument] > In file included from drivers/crypto/qat/qat_c62xvf/adf_c62xvf_hw_data.c:3: > In file included from drivers/crypto/qat/qat_c62xvf/../qat_common/adf_accel_devices.h:5: > In file included from include/linux/interrupt.h:11: > In file included from include/linux/hardirq.h:5: > In file included from include/linux/context_tracking_state.h:5: > In file included from include/linux/percpu.h:6: > In file included from include/linux/preempt.h:78: > In file included from arch/x86/include/asm/preempt.h:7: > In file included from include/linux/thread_info.h:38: > arch/x86/include/asm/thread_info.h:183:13: warning: calling '__builtin_frame_address' with a nonzero argument is unsafe [-Wframe-address] > oldframe = __builtin_frame_address(1); > ^~~~~~~~~~~~~~~~~~~~~~~~~~ > arch/x86/include/asm/thread_info.h:185:11: warning: calling '__builtin_frame_address' with a nonzero argument is unsafe [-Wframe-address] > frame = __builtin_frame_address(2); Funny, but it's not related to the reported issue. > ^~~~~~~~~~~~~~~~~~~~~~~~~~ > >> drivers/crypto/qat/qat_c62xvf/adf_c62xvf_hw_data.c:102:28: warning: taking address of packed member 'csr_ops' of class or structure 'adf_hw_device_data' may result in an unaligned pointer value [-Waddress-of-packed-member] > adf_gen2_init_hw_csr_ops(&hw_data->csr_ops); > ^~~~~~~~~~~~~~~~ > 3 warnings generated. Why on Earth the struct adf_hw_device_data, that contains a lot of pointers, marked as __packed?! That __packed has to be dropped. -- With Best Regards, Andy Shevchenko
WARNING: multiple messages have this Message-ID (diff)
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com> To: kbuild-all@lists.01.org Subject: Re: drivers/crypto/qat/qat_c62xvf/adf_c62xvf_hw_data.c:102:28: warning: taking address of packed member 'csr_ops' of class or structure 'adf_hw_device_data' may result in an unaligned pointer value Date: Wed, 01 Sep 2021 14:18:17 +0300 [thread overview] Message-ID: <YS9heetW+E+1Nr1w@smile.fi.intel.com> (raw) In-Reply-To: <202109010001.5r11IRSX-lkp@intel.com> [-- Attachment #1: Type: text/plain, Size: 3162 bytes --] On Wed, Sep 01, 2021 at 12:19:08AM +0800, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > head: b91db6a0b52e019b6bdabea3f1dbe36d85c7e52c > commit: f9c697c4bfc6002d92e8015b65fe2a79acadb416 crypto: qat - split transport CSR access logic > date: 10 months ago > config: i386-randconfig-r012-20210831 (attached as .config) > compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 4b1fde8a2b681dad2ce0c082a5d6422caa06b0bc) > 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=f9c697c4bfc6002d92e8015b65fe2a79acadb416 > git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > git fetch --no-tags linus master > git checkout f9c697c4bfc6002d92e8015b65fe2a79acadb416 > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=i386 > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@intel.com> > > All warnings (new ones prefixed by >>): > > clang-14: warning: optimization flag '-falign-jumps=0' is not supported [-Wignored-optimization-argument] > In file included from drivers/crypto/qat/qat_c62xvf/adf_c62xvf_hw_data.c:3: > In file included from drivers/crypto/qat/qat_c62xvf/../qat_common/adf_accel_devices.h:5: > In file included from include/linux/interrupt.h:11: > In file included from include/linux/hardirq.h:5: > In file included from include/linux/context_tracking_state.h:5: > In file included from include/linux/percpu.h:6: > In file included from include/linux/preempt.h:78: > In file included from arch/x86/include/asm/preempt.h:7: > In file included from include/linux/thread_info.h:38: > arch/x86/include/asm/thread_info.h:183:13: warning: calling '__builtin_frame_address' with a nonzero argument is unsafe [-Wframe-address] > oldframe = __builtin_frame_address(1); > ^~~~~~~~~~~~~~~~~~~~~~~~~~ > arch/x86/include/asm/thread_info.h:185:11: warning: calling '__builtin_frame_address' with a nonzero argument is unsafe [-Wframe-address] > frame = __builtin_frame_address(2); Funny, but it's not related to the reported issue. > ^~~~~~~~~~~~~~~~~~~~~~~~~~ > >> drivers/crypto/qat/qat_c62xvf/adf_c62xvf_hw_data.c:102:28: warning: taking address of packed member 'csr_ops' of class or structure 'adf_hw_device_data' may result in an unaligned pointer value [-Waddress-of-packed-member] > adf_gen2_init_hw_csr_ops(&hw_data->csr_ops); > ^~~~~~~~~~~~~~~~ > 3 warnings generated. Why on Earth the struct adf_hw_device_data, that contains a lot of pointers, marked as __packed?! That __packed has to be dropped. -- With Best Regards, Andy Shevchenko
next prev parent reply other threads:[~2021-09-01 11:18 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-08-31 16:19 drivers/crypto/qat/qat_c62xvf/adf_c62xvf_hw_data.c:102:28: warning: taking address of packed member 'csr_ops' of class or structure 'adf_hw_device_data' may result in an unaligned pointer value kernel test robot 2021-08-31 16:19 ` kernel test robot 2021-09-01 11:18 ` Andy Shevchenko [this message] 2021-09-01 11:18 ` Andy Shevchenko 2021-09-01 11:36 ` Giovanni Cabiddu 2021-09-01 11:36 ` Giovanni Cabiddu
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