[kbuild-all] drivers/dma/sun6i-dma.c:244:45: sparse: sparse: incorrect type in argument 1 (different address spaces)

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: e28c0d7c92c89016c12a677616668957351e7542 commit: 005b73d0dd83c9cb9420a196bea8070cde30ecac m68knommu: __force type casts for raw IO access date: 4 months ago config: m68k-randconfig-s031-20201115 (attached as .config) compiler: m68k-linux-gcc (GCC) 9.3.0 reproduce: 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: v0.6.3-107-gaf3512a6-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 005b73d0dd83c9cb9420a196bea8070cde30ecac # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=m68k If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; "sparse warnings: (new ones prefixed by >>)" drivers/dma/sun6i-dma.c: note: in included file (through arch/m68k/include/asm/io.h, include/linux/scatterlist.h, include/linux/dmaengine.h): arch/m68k/include/asm/io_no.h:96:17: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int volatile [usertype] @@ got restricted __le32 [usertype] @@ arch/m68k/include/asm/io_no.h:96:17: sparse: expected unsigned int volatile [usertype] arch/m68k/include/asm/io_no.h:96:17: sparse: got restricted __le32 [usertype] arch/m68k/include/asm/io_no.h:96:17: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int volatile [usertype] @@ got restricted __le32 [usertype] @@ arch/m68k/include/asm/io_no.h:96:17: sparse: expected unsigned int volatile [usertype] arch/m68k/include/asm/io_no.h:96:17: sparse: got restricted __le32 [usertype] arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:96:17: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int volatile [usertype] @@ got restricted __le32 [usertype] @@ arch/m68k/include/asm/io_no.h:96:17: sparse: expected unsigned int volatile [usertype] arch/m68k/include/asm/io_no.h:96:17: sparse: got restricted __le32 [usertype] arch/m68k/include/asm/io_no.h:96:17: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int volatile [usertype] @@ got restricted __le32 [usertype] @@ arch/m68k/include/asm/io_no.h:96:17: sparse: expected unsigned int volatile [usertype] arch/m68k/include/asm/io_no.h:96:17: sparse: got restricted __le32 [usertype] arch/m68k/include/asm/io_no.h:96:17: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int volatile [usertype] @@ got restricted __le32 [usertype] @@ arch/m68k/include/asm/io_no.h:96:17: sparse: expected unsigned int volatile [usertype] arch/m68k/include/asm/io_no.h:96:17: sparse: got restricted __le32 [usertype] arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 drivers/dma/sun6i-dma.c:244:45: sparse: got void [noderef] __iomem *base arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: cast to restricted __le32 arch/m68k/include/asm/io_no.h:78:16: sparse: sparse: too many warnings vim +244 drivers/dma/sun6i-dma.c 555859308723d8 Maxime Ripard 2014-07-17 240 555859308723d8 Maxime Ripard 2014-07-17 241 static inline void sun6i_dma_dump_chan_regs(struct sun6i_dma_dev *sdev, 555859308723d8 Maxime Ripard 2014-07-17 242 struct sun6i_pchan *pchan) 555859308723d8 Maxime Ripard 2014-07-17 243 { 42c0d54e623695 Vinod Koul 2014-07-28 @244 phys_addr_t reg = virt_to_phys(pchan->base); 555859308723d8 Maxime Ripard 2014-07-17 245 555859308723d8 Maxime Ripard 2014-07-17 246 dev_dbg(sdev->slave.dev, "Chan %d reg: %pa\n" 555859308723d8 Maxime Ripard 2014-07-17 247 "\t___en(%04x): \t0x%08x\n" 555859308723d8 Maxime Ripard 2014-07-17 248 "\tpause(%04x): \t0x%08x\n" 555859308723d8 Maxime Ripard 2014-07-17 249 "\tstart(%04x): \t0x%08x\n" 555859308723d8 Maxime Ripard 2014-07-17 250 "\t__cfg(%04x): \t0x%08x\n" 555859308723d8 Maxime Ripard 2014-07-17 251 "\t__src(%04x): \t0x%08x\n" 555859308723d8 Maxime Ripard 2014-07-17 252 "\t__dst(%04x): \t0x%08x\n" 555859308723d8 Maxime Ripard 2014-07-17 253 "\tcount(%04x): \t0x%08x\n" 555859308723d8 Maxime Ripard 2014-07-17 254 "\t_para(%04x): \t0x%08x\n\n", 555859308723d8 Maxime Ripard 2014-07-17 255 pchan->idx, &reg, 555859308723d8 Maxime Ripard 2014-07-17 256 DMA_CHAN_ENABLE, 555859308723d8 Maxime Ripard 2014-07-17 257 readl(pchan->base + DMA_CHAN_ENABLE), 555859308723d8 Maxime Ripard 2014-07-17 258 DMA_CHAN_PAUSE, 555859308723d8 Maxime Ripard 2014-07-17 259 readl(pchan->base + DMA_CHAN_PAUSE), 555859308723d8 Maxime Ripard 2014-07-17 260 DMA_CHAN_LLI_ADDR, 555859308723d8 Maxime Ripard 2014-07-17 261 readl(pchan->base + DMA_CHAN_LLI_ADDR), 555859308723d8 Maxime Ripard 2014-07-17 262 DMA_CHAN_CUR_CFG, 555859308723d8 Maxime Ripard 2014-07-17 263 readl(pchan->base + DMA_CHAN_CUR_CFG), 555859308723d8 Maxime Ripard 2014-07-17 264 DMA_CHAN_CUR_SRC, 555859308723d8 Maxime Ripard 2014-07-17 265 readl(pchan->base + DMA_CHAN_CUR_SRC), 555859308723d8 Maxime Ripard 2014-07-17 266 DMA_CHAN_CUR_DST, 555859308723d8 Maxime Ripard 2014-07-17 267 readl(pchan->base + DMA_CHAN_CUR_DST), 555859308723d8 Maxime Ripard 2014-07-17 268 DMA_CHAN_CUR_CNT, 555859308723d8 Maxime Ripard 2014-07-17 269 readl(pchan->base + DMA_CHAN_CUR_CNT), 555859308723d8 Maxime Ripard 2014-07-17 270 DMA_CHAN_CUR_PARA, 555859308723d8 Maxime Ripard 2014-07-17 271 readl(pchan->base + DMA_CHAN_CUR_PARA)); 555859308723d8 Maxime Ripard 2014-07-17 272 } 555859308723d8 Maxime Ripard 2014-07-17 273 :::::: The code at line 244 was first introduced by commit :::::: 42c0d54e62369584f2491f072f405602ff504e0e dmaengine: sun6i: fix build failure on x86, xilinx targets :::::: TO: Vinod Koul <vinod.koul(a)intel.com&gt; :::::: CC: Vinod Koul <vinod.koul(a)intel.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org