tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 9123e3a74ec7b934a4a099e98af6a61c2f80bbf5 commit: a19f228b8dd9a67e8de4ebd4eac8a4c94ec39d1a media: Kconfig: not all V4L2 platform drivers are for camera date: 4 months ago config: m68k-randconfig-r021-20200817 (attached as .config) compiler: m68k-linux-gcc (GCC) 9.3.0 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 git checkout a19f228b8dd9a67e8de4ebd4eac8a4c94ec39d1a # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k 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 arch/m68k/include/asm/io_mm.h:25, from arch/m68k/include/asm/io.h:8, from include/linux/io.h:13, from include/linux/irq.h:20, from include/asm-generic/hardirq.h:13, from ./arch/m68k/include/generated/asm/hardirq.h:1, from include/linux/hardirq.h:9, from include/linux/interrupt.h:11, from drivers/media/platform/fsl-viu.c:17: arch/m68k/include/asm/raw_io.h: In function 'raw_rom_outsb': arch/m68k/include/asm/raw_io.h:83:7: warning: variable '__w' set but not used [-Wunused-but-set-variable] 83 | ({u8 __w, __v = (b); u32 _addr = ((u32) (addr)); \ | ^~~ arch/m68k/include/asm/raw_io.h:430:3: note: in expansion of macro 'rom_out_8' 430 | rom_out_8(port, *buf++); | ^~~~~~~~~ arch/m68k/include/asm/raw_io.h: In function 'raw_rom_outsw': arch/m68k/include/asm/raw_io.h:86:8: warning: variable '__w' set but not used [-Wunused-but-set-variable] 86 | ({u16 __w, __v = (w); u32 _addr = ((u32) (addr)); \ | ^~~ arch/m68k/include/asm/raw_io.h:448:3: note: in expansion of macro 'rom_out_be16' 448 | rom_out_be16(port, *buf++); | ^~~~~~~~~~~~ arch/m68k/include/asm/raw_io.h: In function 'raw_rom_outsw_swapw': arch/m68k/include/asm/raw_io.h:90:8: warning: variable '__w' set but not used [-Wunused-but-set-variable] 90 | ({u16 __w, __v = (w); u32 _addr = ((u32) (addr)); \ | ^~~ arch/m68k/include/asm/raw_io.h:466:3: note: in expansion of macro 'rom_out_le16' 466 | rom_out_le16(port, *buf++); | ^~~~~~~~~~~~ In file included from include/linux/kernel.h:11, from include/linux/list.h:9, from include/linux/module.h:12, from drivers/media/platform/fsl-viu.c:12: include/linux/scatterlist.h: In function 'sg_set_buf': arch/m68k/include/asm/page_mm.h:169:49: warning: ordered comparison of pointer with null pointer [-Wextra] 169 | #define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void *)PAGE_OFFSET && (void *)(kaddr) < high_memory) | ^~ include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' 78 | # define unlikely(x) __builtin_expect(!!(x), 0) | ^ include/linux/scatterlist.h:143:2: note: in expansion of macro 'BUG_ON' 143 | BUG_ON(!virt_addr_valid(buf)); | ^~~~~~ include/linux/scatterlist.h:143:10: note: in expansion of macro 'virt_addr_valid' 143 | BUG_ON(!virt_addr_valid(buf)); | ^~~~~~~~~~~~~~~ In file included from arch/m68k/include/asm/bug.h:32, from include/linux/bug.h:5, from include/linux/thread_info.h:12, from include/asm-generic/preempt.h:5, from ./arch/m68k/include/generated/asm/preempt.h:1, from include/linux/preempt.h:78, from include/linux/spinlock.h:51, from include/linux/seqlock.h:36, from include/linux/time.h:6, from include/linux/stat.h:19, from include/linux/module.h:13, from drivers/media/platform/fsl-viu.c:12: include/linux/dma-mapping.h: In function 'dma_map_resource': arch/m68k/include/asm/page_mm.h:169:49: warning: ordered comparison of pointer with null pointer [-Wextra] 169 | #define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void *)PAGE_OFFSET && (void *)(kaddr) < high_memory) | ^~ include/asm-generic/bug.h:139:27: note: in definition of macro 'WARN_ON_ONCE' 139 | int __ret_warn_once = !!(condition); \ | ^~~~~~~~~ arch/m68k/include/asm/page_mm.h:170:25: note: in expansion of macro 'virt_addr_valid' 170 | #define pfn_valid(pfn) virt_addr_valid(pfn_to_virt(pfn)) | ^~~~~~~~~~~~~~~ include/linux/dma-mapping.h:352:19: note: in expansion of macro 'pfn_valid' 352 | if (WARN_ON_ONCE(pfn_valid(PHYS_PFN(phys_addr)))) | ^~~~~~~~~ drivers/media/platform/fsl-viu.c: At top level: >> drivers/media/platform/fsl-viu.c:36: warning: "out_be32" redefined 36 | #define out_be32(v, a) iowrite32be(a, (void __iomem *)v) | In file included from arch/m68k/include/asm/io_mm.h:25, from arch/m68k/include/asm/io.h:8, from include/linux/io.h:13, from include/linux/irq.h:20, from include/asm-generic/hardirq.h:13, from ./arch/m68k/include/generated/asm/hardirq.h:1, from include/linux/hardirq.h:9, from include/linux/interrupt.h:11, from drivers/media/platform/fsl-viu.c:17: arch/m68k/include/asm/raw_io.h:32: note: this is the location of the previous definition 32 | #define out_be32(addr,l) (void)((*(__force volatile u32 *) (addr)) = (l)) | >> drivers/media/platform/fsl-viu.c:37: warning: "in_be32" redefined 37 | #define in_be32(a) ioread32be((void __iomem *)a) | In file included from arch/m68k/include/asm/io_mm.h:25, from arch/m68k/include/asm/io.h:8, from include/linux/io.h:13, from include/linux/irq.h:20, from include/asm-generic/hardirq.h:13, from ./arch/m68k/include/generated/asm/hardirq.h:1, from include/linux/hardirq.h:9, from include/linux/interrupt.h:11, from drivers/media/platform/fsl-viu.c:17: arch/m68k/include/asm/raw_io.h:23: note: this is the location of the previous definition 23 | #define in_be32(addr) \ | # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a19f228b8dd9a67e8de4ebd4eac8a4c94ec39d1a git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout a19f228b8dd9a67e8de4ebd4eac8a4c94ec39d1a vim +/out_be32 +36 drivers/media/platform/fsl-viu.c 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 33 29d750686331a1a drivers/media/platform/fsl-viu.c Mauro Carvalho Chehab 2018-04-05 34 /* Allow building this driver with COMPILE_TEST */ 6898dd580a04534 drivers/media/platform/fsl-viu.c Randy Dunlap 2019-08-06 35 #if !defined(CONFIG_PPC) && !defined(CONFIG_MICROBLAZE) 29d750686331a1a drivers/media/platform/fsl-viu.c Mauro Carvalho Chehab 2018-04-05 @36 #define out_be32(v, a) iowrite32be(a, (void __iomem *)v) 29d750686331a1a drivers/media/platform/fsl-viu.c Mauro Carvalho Chehab 2018-04-05 @37 #define in_be32(a) ioread32be((void __iomem *)a) 29d750686331a1a drivers/media/platform/fsl-viu.c Mauro Carvalho Chehab 2018-04-05 38 #endif 29d750686331a1a drivers/media/platform/fsl-viu.c Mauro Carvalho Chehab 2018-04-05 39 :::::: The code at line 36 was first introduced by commit :::::: 29d750686331a1a9ceeb97e81d3770f57bed5f72 media: fsl-viu: allow building it with COMPILE_TEST :::::: TO: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx> :::::: CC: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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