tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 2e0046650f0f192a84a1793f0dc2f0991ed9a3e4 commit: 08fdced60ca08e34e316a3ab945636fcdfcbc973 [2287/14009] ALSA: rawmidi: Add framing mode config: mips-buildonly-randconfig-r005-20210630 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 8d21d5472501460933e78aead04cf59579025ba4) 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 mips cross compiling tool for clang build # apt-get install binutils-mips-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=08fdced60ca08e34e316a3ab945636fcdfcbc973 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 08fdced60ca08e34e316a3ab945636fcdfcbc973 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=mips If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from sound/core/rawmidi.c:1608: sound/core/rawmidi_compat.c:26:31: warning: taking address of packed member 'stream' of class or structure 'snd_rawmidi_params32' may result in an unaligned pointer value [-Waddress-of-packed-member] if (get_user(params.stream, &src->stream) || ^~~~~~~~~~~ arch/mips/include/asm/uaccess.h:135:21: note: expanded from macro 'get_user' const __typeof__(*(ptr)) __user *__p = (ptr); \ ^~~ In file included from sound/core/rawmidi.c:1608: sound/core/rawmidi_compat.c:26:31: warning: taking address of packed member 'stream' of class or structure 'snd_rawmidi_params32' may result in an unaligned pointer value [-Waddress-of-packed-member] if (get_user(params.stream, &src->stream) || ^~~~~~~~~~~ arch/mips/include/asm/uaccess.h:135:42: note: expanded from macro 'get_user' const __typeof__(*(ptr)) __user *__p = (ptr); \ ^~~ In file included from sound/core/rawmidi.c:1608: sound/core/rawmidi_compat.c:27:36: warning: taking address of packed member 'buffer_size' of class or structure 'snd_rawmidi_params32' may result in an unaligned pointer value [-Waddress-of-packed-member] get_user(params.buffer_size, &src->buffer_size) || ^~~~~~~~~~~~~~~~ arch/mips/include/asm/uaccess.h:135:21: note: expanded from macro 'get_user' const __typeof__(*(ptr)) __user *__p = (ptr); \ ^~~ In file included from sound/core/rawmidi.c:1608: sound/core/rawmidi_compat.c:27:36: warning: taking address of packed member 'buffer_size' of class or structure 'snd_rawmidi_params32' may result in an unaligned pointer value [-Waddress-of-packed-member] get_user(params.buffer_size, &src->buffer_size) || ^~~~~~~~~~~~~~~~ arch/mips/include/asm/uaccess.h:135:42: note: expanded from macro 'get_user' const __typeof__(*(ptr)) __user *__p = (ptr); \ ^~~ In file included from sound/core/rawmidi.c:1608: sound/core/rawmidi_compat.c:28:34: warning: taking address of packed member 'avail_min' of class or structure 'snd_rawmidi_params32' may result in an unaligned pointer value [-Waddress-of-packed-member] get_user(params.avail_min, &src->avail_min) || ^~~~~~~~~~~~~~ arch/mips/include/asm/uaccess.h:135:21: note: expanded from macro 'get_user' const __typeof__(*(ptr)) __user *__p = (ptr); \ ^~~ In file included from sound/core/rawmidi.c:1608: sound/core/rawmidi_compat.c:28:34: warning: taking address of packed member 'avail_min' of class or structure 'snd_rawmidi_params32' may result in an unaligned pointer value [-Waddress-of-packed-member] get_user(params.avail_min, &src->avail_min) || ^~~~~~~~~~~~~~ arch/mips/include/asm/uaccess.h:135:42: note: expanded from macro 'get_user' const __typeof__(*(ptr)) __user *__p = (ptr); \ ^~~ In file included from sound/core/rawmidi.c:1608: >> sound/core/rawmidi_compat.c:29:29: warning: taking address of packed member 'mode' of class or structure 'snd_rawmidi_params32' may result in an unaligned pointer value [-Waddress-of-packed-member] get_user(params.mode, &src->mode) || ^~~~~~~~~ arch/mips/include/asm/uaccess.h:135:21: note: expanded from macro 'get_user' const __typeof__(*(ptr)) __user *__p = (ptr); \ ^~~ In file included from sound/core/rawmidi.c:1608: >> sound/core/rawmidi_compat.c:29:29: warning: taking address of packed member 'mode' of class or structure 'snd_rawmidi_params32' may result in an unaligned pointer value [-Waddress-of-packed-member] get_user(params.mode, &src->mode) || ^~~~~~~~~ arch/mips/include/asm/uaccess.h:135:42: note: expanded from macro 'get_user' const __typeof__(*(ptr)) __user *__p = (ptr); \ ^~~ In file included from sound/core/rawmidi.c:1608: sound/core/rawmidi_compat.c:30:21: warning: taking address of packed member 'no_active_sensing' of class or structure 'snd_rawmidi_params32' may result in an unaligned pointer value [-Waddress-of-packed-member] get_user(val, &src->no_active_sensing)) ^~~~~~~~~~~~~~~~~~~~~~ arch/mips/include/asm/uaccess.h:135:21: note: expanded from macro 'get_user' const __typeof__(*(ptr)) __user *__p = (ptr); \ ^~~ In file included from sound/core/rawmidi.c:1608: sound/core/rawmidi_compat.c:30:21: warning: taking address of packed member 'no_active_sensing' of class or structure 'snd_rawmidi_params32' may result in an unaligned pointer value [-Waddress-of-packed-member] get_user(val, &src->no_active_sensing)) ^~~~~~~~~~~~~~~~~~~~~~ arch/mips/include/asm/uaccess.h:135:42: note: expanded from macro 'get_user' const __typeof__(*(ptr)) __user *__p = (ptr); \ ^~~ In file included from sound/core/rawmidi.c:1608: sound/core/rawmidi_compat.c:63:31: warning: taking address of packed member 'stream' of class or structure 'compat_snd_rawmidi_status64' may result in an unaligned pointer value [-Waddress-of-packed-member] if (get_user(status.stream, &src->stream)) ^~~~~~~~~~~ arch/mips/include/asm/uaccess.h:135:21: note: expanded from macro 'get_user' const __typeof__(*(ptr)) __user *__p = (ptr); \ ^~~ In file included from sound/core/rawmidi.c:1608: sound/core/rawmidi_compat.c:63:31: warning: taking address of packed member 'stream' of class or structure 'compat_snd_rawmidi_status64' may result in an unaligned pointer value [-Waddress-of-packed-member] if (get_user(status.stream, &src->stream)) ^~~~~~~~~~~ arch/mips/include/asm/uaccess.h:135:42: note: expanded from macro 'get_user' const __typeof__(*(ptr)) __user *__p = (ptr); \ ^~~ 12 warnings generated. vim +29 sound/core/rawmidi_compat.c 19 20 static int snd_rawmidi_ioctl_params_compat(struct snd_rawmidi_file *rfile, 21 struct snd_rawmidi_params32 __user *src) 22 { 23 struct snd_rawmidi_params params; 24 unsigned int val; 25 26 if (get_user(params.stream, &src->stream) || 27 get_user(params.buffer_size, &src->buffer_size) || 28 get_user(params.avail_min, &src->avail_min) || > 29 get_user(params.mode, &src->mode) || 30 get_user(val, &src->no_active_sensing)) 31 return -EFAULT; 32 params.no_active_sensing = val; 33 switch (params.stream) { 34 case SNDRV_RAWMIDI_STREAM_OUTPUT: 35 if (!rfile->output) 36 return -EINVAL; 37 return snd_rawmidi_output_params(rfile->output, ¶ms); 38 case SNDRV_RAWMIDI_STREAM_INPUT: 39 if (!rfile->input) 40 return -EINVAL; 41 return snd_rawmidi_input_params(rfile->input, ¶ms); 42 } 43 return -EINVAL; 44 } 45 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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