tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git device_h_splitup head: 965681d8272ce30aa68375c25c4c797731e18dd3 commit: 965681d8272ce30aa68375c25c4c797731e18dd3 [11/11] device.h: move dev_printk()-like functions to device_printk.h config: powerpc-mpc512x_defconfig (attached as .config) compiler: powerpc-linux-gcc (GCC) 7.4.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 965681d8272ce30aa68375c25c4c797731e18dd3 # save the attached .config to linux build tree GCC_VERSION=7.4.0 make.cross ARCH=powerpc If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from include/linux/device.h:15:0, from include/linux/acpi.h:15, from include/linux/i2c.h:13, from include/uapi/linux/fb.h:6, from include/linux/fb.h:6, from drivers/video/fbdev/fsl-diu-fb.c:20: drivers/video/fbdev/fsl-diu-fb.c: In function 'fsl_diu_ioctl': >> include/linux/device_printk.h:106:2: warning: this statement may fall through [-Wimplicit-fallthrough=] _dev_warn(dev, dev_fmt(fmt), ##__VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/video/fbdev/fsl-diu-fb.c:1287:3: note: in expansion of macro 'dev_warn' dev_warn(info->dev, ^~~~~~~~ drivers/video/fbdev/fsl-diu-fb.c:1290:2: note: here case MFB_SET_PIXFMT: ^~~~ In file included from include/linux/device.h:15:0, from include/linux/acpi.h:15, from include/linux/i2c.h:13, from include/uapi/linux/fb.h:6, from include/linux/fb.h:6, from drivers/video/fbdev/fsl-diu-fb.c:20: >> include/linux/device_printk.h:106:2: warning: this statement may fall through [-Wimplicit-fallthrough=] _dev_warn(dev, dev_fmt(fmt), ##__VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/video/fbdev/fsl-diu-fb.c:1296:3: note: in expansion of macro 'dev_warn' dev_warn(info->dev, ^~~~~~~~ drivers/video/fbdev/fsl-diu-fb.c:1299:2: note: here case MFB_GET_PIXFMT: ^~~~ -- In file included from include/linux/device.h:15:0, from include/linux/acpi.h:15, from include/linux/i2c.h:13, from include/uapi/linux/fb.h:6, from include/linux/fb.h:6, from drivers/video//fbdev/fsl-diu-fb.c:20: drivers/video//fbdev/fsl-diu-fb.c: In function 'fsl_diu_ioctl': >> include/linux/device_printk.h:106:2: warning: this statement may fall through [-Wimplicit-fallthrough=] _dev_warn(dev, dev_fmt(fmt), ##__VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/video//fbdev/fsl-diu-fb.c:1287:3: note: in expansion of macro 'dev_warn' dev_warn(info->dev, ^~~~~~~~ drivers/video//fbdev/fsl-diu-fb.c:1290:2: note: here case MFB_SET_PIXFMT: ^~~~ In file included from include/linux/device.h:15:0, from include/linux/acpi.h:15, from include/linux/i2c.h:13, from include/uapi/linux/fb.h:6, from include/linux/fb.h:6, from drivers/video//fbdev/fsl-diu-fb.c:20: >> include/linux/device_printk.h:106:2: warning: this statement may fall through [-Wimplicit-fallthrough=] _dev_warn(dev, dev_fmt(fmt), ##__VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/video//fbdev/fsl-diu-fb.c:1296:3: note: in expansion of macro 'dev_warn' dev_warn(info->dev, ^~~~~~~~ drivers/video//fbdev/fsl-diu-fb.c:1299:2: note: here case MFB_GET_PIXFMT: ^~~~ vim +106 include/linux/device_printk.h 91 92 /* 93 * #defines for all the dev_<level> macros to prefix with whatever 94 * possible use of #define dev_fmt(fmt) ... 95 */ 96 97 #define dev_emerg(dev, fmt, ...) \ 98 _dev_emerg(dev, dev_fmt(fmt), ##__VA_ARGS__) 99 #define dev_crit(dev, fmt, ...) \ 100 _dev_crit(dev, dev_fmt(fmt), ##__VA_ARGS__) 101 #define dev_alert(dev, fmt, ...) \ 102 _dev_alert(dev, dev_fmt(fmt), ##__VA_ARGS__) 103 #define dev_err(dev, fmt, ...) \ 104 _dev_err(dev, dev_fmt(fmt), ##__VA_ARGS__) 105 #define dev_warn(dev, fmt, ...) \ > 106 _dev_warn(dev, dev_fmt(fmt), ##__VA_ARGS__) 107 #define dev_notice(dev, fmt, ...) \ 108 _dev_notice(dev, dev_fmt(fmt), ##__VA_ARGS__) 109 #define dev_info(dev, fmt, ...) \ 110 _dev_info(dev, dev_fmt(fmt), ##__VA_ARGS__) 111 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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