Hi Michael, I love your patch! Perhaps something to improve: [auto build test WARNING on linuxtv-media/master] [also build test WARNING on v5.0-rc4 next-20190213] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Michael-Tretter/Add-ZynqMP-VCU-Allegro-DVT-H-264-encoder-driver/20190214-090312 base: git://linuxtv.org/media_tree.git master config: sh-allmodconfig (attached as .config) compiler: sh4-linux-gnu-gcc (Debian 8.2.0-11) 8.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=8.2.0 make.cross ARCH=sh All warnings (new ones prefixed by >>): In file included from include/media/v4l2-subdev.h:24, from include/media/v4l2-device.h:25, from drivers/staging/media/allegro-dvt/allegro-core.c:22: drivers/staging/media/allegro-dvt/allegro-core.c: In function 'allegro_mbox_write': include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'size_t' {aka 'unsigned int'} [-Wformat=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^~~~~~ include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk' printk(level "%s: " fmt, (dev)->name , ## arg) ^~~~~ include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH' #define KERN_ERR KERN_SOH "3" /* error conditions */ ^~~~~~~~ include/media/v4l2-common.h:72:14: note: in expansion of macro 'KERN_ERR' v4l2_printk(KERN_ERR, dev, fmt , ## arg) ^~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:749:3: note: in expansion of macro 'v4l2_err' v4l2_err(&dev->v4l2_dev, ^~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:750:17: note: format string is defined here "message (%lu bytes) to large for mailbox (%lu bytes)\n", ~~^ %u In file included from include/media/v4l2-subdev.h:24, from include/media/v4l2-device.h:25, from drivers/staging/media/allegro-dvt/allegro-core.c:22: include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'size_t' {aka 'unsigned int'} [-Wformat=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^~~~~~ include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk' printk(level "%s: " fmt, (dev)->name , ## arg) ^~~~~ include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH' #define KERN_ERR KERN_SOH "3" /* error conditions */ ^~~~~~~~ include/media/v4l2-common.h:72:14: note: in expansion of macro 'KERN_ERR' v4l2_printk(KERN_ERR, dev, fmt , ## arg) ^~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:749:3: note: in expansion of macro 'v4l2_err' v4l2_err(&dev->v4l2_dev, ^~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:750:50: note: format string is defined here "message (%lu bytes) to large for mailbox (%lu bytes)\n", ~~^ %u In file included from include/media/v4l2-subdev.h:24, from include/media/v4l2-device.h:25, from drivers/staging/media/allegro-dvt/allegro-core.c:22: include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'size_t' {aka 'unsigned int'} [-Wformat=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^~~~~~ include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk' printk(level "%s: " fmt, (dev)->name , ## arg) ^~~~~ include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH' #define KERN_ERR KERN_SOH "3" /* error conditions */ ^~~~~~~~ include/media/v4l2-common.h:72:14: note: in expansion of macro 'KERN_ERR' v4l2_printk(KERN_ERR, dev, fmt , ## arg) ^~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:756:3: note: in expansion of macro 'v4l2_err' v4l2_err(&dev->v4l2_dev, ^~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:757:51: note: format string is defined here "invalid message length: %u bytes (expected %lu bytes)\n", ~~^ %u In file included from include/media/v4l2-subdev.h:24, from include/media/v4l2-device.h:25, from drivers/staging/media/allegro-dvt/allegro-core.c:22: >> include/linux/kern_levels.h:5:18: warning: format '%lx' expects argument of type 'long unsigned int', but argument 4 has type 'size_t' {aka 'unsigned int'} [-Wformat=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^~~~~~ include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk' printk(level "%s: " fmt, (dev)->name , ## arg) ^~~~~ include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH' #define KERN_ERR KERN_SOH "3" /* error conditions */ ^~~~~~~~ include/media/v4l2-common.h:72:14: note: in expansion of macro 'KERN_ERR' v4l2_printk(KERN_ERR, dev, fmt , ## arg) ^~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:769:3: note: in expansion of macro 'v4l2_err' v4l2_err(&dev->v4l2_dev, ^~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:770:66: note: format string is defined here "invalid tail (0x%x): must be smaller than mailbox size (0x%lx)\n", ~~^ %x In file included from include/media/v4l2-subdev.h:24, from include/media/v4l2-device.h:25, from drivers/staging/media/allegro-dvt/allegro-core.c:22: drivers/staging/media/allegro-dvt/allegro-core.c: In function 'allegro_mbox_read': >> include/linux/kern_levels.h:5:18: warning: format '%lx' expects argument of type 'long unsigned int', but argument 4 has type 'size_t' {aka 'unsigned int'} [-Wformat=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^~~~~~ include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk' printk(level "%s: " fmt, (dev)->name , ## arg) ^~~~~ include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH' #define KERN_ERR KERN_SOH "3" /* error conditions */ ^~~~~~~~ include/media/v4l2-common.h:72:14: note: in expansion of macro 'KERN_ERR' v4l2_printk(KERN_ERR, dev, fmt , ## arg) ^~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:798:3: note: in expansion of macro 'v4l2_err' v4l2_err(&dev->v4l2_dev, ^~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:799:66: note: format string is defined here "invalid head (0x%x): must be smaller than mailbox size (0x%lx)\n", ~~^ %x In file included from include/media/v4l2-subdev.h:24, from include/media/v4l2-device.h:25, from drivers/staging/media/allegro-dvt/allegro-core.c:22: >> include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'unsigned int' [-Wformat=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^~~~~~ include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk' printk(level "%s: " fmt, (dev)->name , ## arg) ^~~~~ include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH' #define KERN_ERR KERN_SOH "3" /* error conditions */ ^~~~~~~~ include/media/v4l2-common.h:72:14: note: in expansion of macro 'KERN_ERR' v4l2_printk(KERN_ERR, dev, fmt , ## arg) ^~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:810:3: note: in expansion of macro 'v4l2_err' v4l2_err(&dev->v4l2_dev, ^~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:811:32: note: format string is defined here "invalid message length: %lu bytes (maximum %lu bytes)\n", ~~^ %u In file included from include/media/v4l2-subdev.h:24, from include/media/v4l2-device.h:25, from drivers/staging/media/allegro-dvt/allegro-core.c:22: include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'size_t' {aka 'unsigned int'} [-Wformat=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^~~~~~ include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk' printk(level "%s: " fmt, (dev)->name , ## arg) ^~~~~ include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH' #define KERN_ERR KERN_SOH "3" /* error conditions */ ^~~~~~~~ include/media/v4l2-common.h:72:14: note: in expansion of macro 'KERN_ERR' v4l2_printk(KERN_ERR, dev, fmt , ## arg) ^~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:810:3: note: in expansion of macro 'v4l2_err' v4l2_err(&dev->v4l2_dev, ^~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:811:51: note: format string is defined here "invalid message length: %lu bytes (maximum %lu bytes)\n", ~~^ %u In file included from include/media/v4l2-subdev.h:24, from include/media/v4l2-device.h:25, from drivers/staging/media/allegro-dvt/allegro-core.c:22: include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'size_t' {aka 'unsigned int'} [-Wformat=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^~~~~~ include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk' printk(level "%s: " fmt, (dev)->name , ## arg) ^~~~~ include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH' #define KERN_ERR KERN_SOH "3" /* error conditions */ ^~~~~~~~ include/media/v4l2-common.h:72:14: note: in expansion of macro 'KERN_ERR' v4l2_printk(KERN_ERR, dev, fmt , ## arg) ^~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:816:3: note: in expansion of macro 'v4l2_err' v4l2_err(&dev->v4l2_dev, ^~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:817:38: note: format string is defined here "destination buffer too small: %lu bytes (need %lu bytes)\n", ~~^ %u In file included from include/media/v4l2-subdev.h:24, from include/media/v4l2-device.h:25, from drivers/staging/media/allegro-dvt/allegro-core.c:22: >> include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'ssize_t' {aka 'int'} [-Wformat=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^~~~~~ include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk' printk(level "%s: " fmt, (dev)->name , ## arg) ^~~~~ include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH' #define KERN_ERR KERN_SOH "3" /* error conditions */ ^~~~~~~~ include/media/v4l2-common.h:72:14: note: in expansion of macro 'KERN_ERR' v4l2_printk(KERN_ERR, dev, fmt , ## arg) ^~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:816:3: note: in expansion of macro 'v4l2_err' v4l2_err(&dev->v4l2_dev, ^~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:817:54: note: format string is defined here "destination buffer too small: %lu bytes (need %lu bytes)\n", ~~^ %u In file included from include/media/v4l2-subdev.h:24, from include/media/v4l2-device.h:25, from drivers/staging/media/allegro-dvt/allegro-core.c:22: drivers/staging/media/allegro-dvt/allegro-core.c: In function 'allegro_receive_message': >> include/linux/kern_levels.h:5:18: warning: format '%ld' expects argument of type 'long int', but argument 3 has type 'ssize_t' {aka 'int'} [-Wformat=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^~~~~~ include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk' printk(level "%s: " fmt, (dev)->name , ## arg) ^~~~~ include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH' #define KERN_ERR KERN_SOH "3" /* error conditions */ ^~~~~~~~ include/media/v4l2-common.h:72:14: note: in expansion of macro 'KERN_ERR' v4l2_printk(KERN_ERR, dev, fmt , ## arg) ^~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:1542:3: note: in expansion of macro 'v4l2_err' v4l2_err(&dev->v4l2_dev, ^~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:1543:30: note: format string is defined here "invalid mbox message (%ld): must be at least %lu\n", ~~^ %d In file included from include/media/v4l2-subdev.h:24, from include/media/v4l2-device.h:25, from drivers/staging/media/allegro-dvt/allegro-core.c:22: include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'unsigned int' [-Wformat=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^~~~~~ include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk' printk(level "%s: " fmt, (dev)->name , ## arg) ^~~~~ include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH' #define KERN_ERR KERN_SOH "3" /* error conditions */ ^~~~~~~~ include/media/v4l2-common.h:72:14: note: in expansion of macro 'KERN_ERR' v4l2_printk(KERN_ERR, dev, fmt , ## arg) ^~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:1542:3: note: in expansion of macro 'v4l2_err' v4l2_err(&dev->v4l2_dev, ^~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:1543:53: note: format string is defined here "invalid mbox message (%ld): must be at least %lu\n", ~~^ %u In file included from include/media/v4l2-subdev.h:24, from include/media/v4l2-device.h:25, from drivers/staging/media/allegro-dvt/allegro-core.c:22: drivers/staging/media/allegro-dvt/allegro-core.c: In function 'allegro_copy_firmware': include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'size_t' {aka 'unsigned int'} [-Wformat=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^~~~~~ include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk' printk(level "%s: " fmt, (dev)->name , ## arg) ^~~~~ include/linux/kern_levels.h:15:20: note: in expansion of macro 'KERN_SOH' #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */ ^~~~~~~~ include/media/v4l2-common.h:85:16: note: in expansion of macro 'KERN_DEBUG' v4l2_printk(KERN_DEBUG, dev, fmt , ## arg); \ ^~~~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:1618:2: note: in expansion of macro 'v4l2_dbg' v4l2_dbg(1, debug, &dev->v4l2_dev, ^~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:1619:25: note: format string is defined here "copy mcu firmware (%lu B) to SRAM\n", size); ~~^ %u In file included from include/media/v4l2-subdev.h:24, from include/media/v4l2-device.h:25, from drivers/staging/media/allegro-dvt/allegro-core.c:22: drivers/staging/media/allegro-dvt/allegro-core.c: In function 'allegro_copy_fw_codec': include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'size_t' {aka 'unsigned int'} [-Wformat=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^~~~~~ include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk' printk(level "%s: " fmt, (dev)->name , ## arg) ^~~~~ include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH' #define KERN_ERR KERN_SOH "3" /* error conditions */ ^~~~~~~~ include/media/v4l2-common.h:72:14: note: in expansion of macro 'KERN_ERR' v4l2_printk(KERN_ERR, dev, fmt , ## arg) ^~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:1640:3: note: in expansion of macro 'v4l2_err' v4l2_err(&dev->v4l2_dev, ^~~~~~~~ drivers/staging/media/allegro-dvt/allegro-core.c:1641:27: note: format string is defined here "failed to allocate %lu bytes for firmware\n", size); ~~^ %u In file included from include/media/v4l2-subdev.h:24, from include/media/v4l2-device.h:25, from drivers/staging/media/allegro-dvt/allegro-core.c:22: include/linux/kern_levels.h:5:18: warning: format '%ld' expects argument of type 'long int', but argument 3 has type 'size_t' {aka 'unsigned int'} [-Wformat=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^~~~~~ include/media/v4l2-common.h:69:9: note: in definition of macro 'v4l2_printk' printk(level "%s: " fmt, (dev)->name , ## arg) ^~~~~ include/linux/kern_levels.h:15:20: note: in expansion of macro 'KERN_SOH' #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */ ^~~~~~~~ include/media/v4l2-common.h:85:16: note: in expansion of macro 'KERN_DEBUG' v4l2_printk(KERN_DEBUG, dev, fmt , ## arg); \ .. vim +5 include/linux/kern_levels.h 314ba352 Joe Perches 2012-07-30 4 04d2c8c8 Joe Perches 2012-07-30 @5 #define KERN_SOH "\001" /* ASCII Start Of Header */ 04d2c8c8 Joe Perches 2012-07-30 6 #define KERN_SOH_ASCII '\001' 04d2c8c8 Joe Perches 2012-07-30 7 :::::: The code at line 5 was first introduced by commit :::::: 04d2c8c83d0e3ac5f78aeede51babb3236200112 printk: convert the format for KERN_<LEVEL> to a 2 byte pattern :::::: TO: Joe Perches <joe@xxxxxxxxxxx> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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