Hi Stafford, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: eb03e318135419b8b781f83cdfa7dbb9252afad6 commit: ded2ee36313c941f1a12b6f85cde295b575264ae openrisc: Add pci bus support date: 10 months ago config: openrisc-randconfig-s051-20230525 compiler: or1k-linux-gcc (GCC) 12.1.0 reproduce: mkdir -p ~/bin wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ded2ee36313c941f1a12b6f85cde295b575264ae git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout ded2ee36313c941f1a12b6f85cde295b575264ae # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 ~/bin/make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=openrisc olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 ~/bin/make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=openrisc SHELL=/bin/bash drivers/net/ethernet/neterion/ drivers/video/fbdev/ sound/usb/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202305260346.q1LwAvF3-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> drivers/video/fbdev/sstfb.c:337:23: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *s @@ got char [noderef] __iomem *screen_base @@ drivers/video/fbdev/sstfb.c:337:23: sparse: expected void *s drivers/video/fbdev/sstfb.c:337:23: sparse: got char [noderef] __iomem *screen_base -- drivers/net/ethernet/neterion/s2io.c:6965:41: sparse: sparse: cast to restricted __be32 drivers/net/ethernet/neterion/s2io.c: note: in included file: >> include/linux/io-64-nonatomic-lo-hi.h:21:16: sparse: sparse: cast truncates bits from constant value (4c0d000000000000 becomes 0) >> include/linux/io-64-nonatomic-lo-hi.h:21:16: sparse: sparse: cast truncates bits from constant value (4c0d000000000000 becomes 0) >> include/linux/io-64-nonatomic-lo-hi.h:21:16: sparse: sparse: cast truncates bits from constant value (f00000000000000 becomes 0) >> include/linux/io-64-nonatomic-lo-hi.h:21:16: sparse: sparse: cast truncates bits from constant value (ffbbffbbffbbffbb becomes ffbbffbb) >> include/linux/io-64-nonatomic-lo-hi.h:21:16: sparse: sparse: cast truncates bits from constant value (ffbbffbbffbbffbb becomes ffbbffbb) >> include/linux/io-64-nonatomic-lo-hi.h:21:16: sparse: sparse: cast truncates bits from constant value (4c0d000000000000 becomes 0) >> include/linux/io-64-nonatomic-lo-hi.h:21:16: sparse: sparse: cast truncates bits from constant value (4c0d000000000000 becomes 0) >> include/linux/io-64-nonatomic-lo-hi.h:21:16: sparse: sparse: cast truncates bits from constant value (4c0d000000000000 becomes 0) >> include/linux/io-64-nonatomic-lo-hi.h:21:16: sparse: sparse: cast truncates bits from constant value (4c0d000000000000 becomes 0) >> include/linux/io-64-nonatomic-lo-hi.h:21:16: sparse: sparse: cast truncates bits from constant value (7f00000001 becomes 1) include/linux/io-64-nonatomic-lo-hi.h:21:16: sparse: sparse: cast truncates bits from constant value (102030405060000 becomes 5060000) >> include/linux/io-64-nonatomic-lo-hi.h:21:16: sparse: sparse: cast truncates bits from constant value (feffffffffff0000 becomes ffff0000) >> include/linux/io-64-nonatomic-lo-hi.h:21:16: sparse: sparse: cast truncates bits from constant value (4c0d000000000000 becomes 0) >> include/linux/io-64-nonatomic-lo-hi.h:21:16: sparse: sparse: cast truncates bits from constant value (4c0d000000000000 becomes 0) >> include/linux/io-64-nonatomic-lo-hi.h:21:16: sparse: sparse: cast truncates bits from constant value (4c0d000000000000 becomes 0) >> include/linux/io-64-nonatomic-lo-hi.h:21:16: sparse: sparse: cast truncates bits from constant value (4c0d000000000000 becomes 0) -- >> drivers/video/fbdev/aty/mach64_cursor.c:156:23: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *s @@ got unsigned char [noderef] [usertype] __iomem *dst @@ drivers/video/fbdev/aty/mach64_cursor.c:156:23: sparse: expected void *s drivers/video/fbdev/aty/mach64_cursor.c:156:23: sparse: got unsigned char [noderef] [usertype] __iomem *dst drivers/video/fbdev/aty/mach64_cursor.c:187:25: sparse: sparse: cast removes address space '__iomem' of expression drivers/video/fbdev/aty/mach64_cursor.c:188:25: sparse: sparse: cast removes address space '__iomem' of expression drivers/video/fbdev/aty/mach64_cursor.c:209:30: sparse: sparse: cast removes address space '__iomem' of expression vim +337 drivers/video/fbdev/sstfb.c ^1da177e4c3f41 drivers/video/sstfb.c Linus Torvalds 2005-04-16 330 ^1da177e4c3f41 drivers/video/sstfb.c Linus Torvalds 2005-04-16 331 /* ^1da177e4c3f41 drivers/video/sstfb.c Linus Torvalds 2005-04-16 332 * clear lfb screen ^1da177e4c3f41 drivers/video/sstfb.c Linus Torvalds 2005-04-16 333 */ ^1da177e4c3f41 drivers/video/sstfb.c Linus Torvalds 2005-04-16 334 static void sstfb_clear_screen(struct fb_info *info) ^1da177e4c3f41 drivers/video/sstfb.c Linus Torvalds 2005-04-16 335 { ^1da177e4c3f41 drivers/video/sstfb.c Linus Torvalds 2005-04-16 336 /* clear screen */ ^1da177e4c3f41 drivers/video/sstfb.c Linus Torvalds 2005-04-16 @337 fb_memset(info->screen_base, 0, info->fix.smem_len); ^1da177e4c3f41 drivers/video/sstfb.c Linus Torvalds 2005-04-16 338 } ^1da177e4c3f41 drivers/video/sstfb.c Linus Torvalds 2005-04-16 339 :::::: The code at line 337 was first introduced by commit :::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2 :::::: TO: Linus Torvalds :::::: CC: Linus Torvalds -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki