Messages in this thread | | | Date | Thu, 8 Oct 2020 02:53:40 +0800 | From | kernel test robot <> | Subject | drivers/video/fbdev/amba-clcd.c:819:28: sparse: sparse: incorrect type in assignment (different address spaces) |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: c85fb28b6f999db9928b841f63f1beeb3074eeca commit: 112c35237c726cb2c6eed32db660f285938fb666 Partially revert "video: fbdev: amba-clcd: Retire elder CLCD driver" date: 7 days ago config: arm64-randconfig-s031-20201008 (attached as .config) compiler: aarch64-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: v0.6.2-218-gc0e96d6d-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=112c35237c726cb2c6eed32db660f285938fb666 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 112c35237c726cb2c6eed32db660f285938fb666 # 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=arm64
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
echo echo "sparse warnings: (new ones prefixed by >>)" echo >> drivers/video/fbdev/amba-clcd.c:819:28: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected char [noderef] __iomem *screen_base @@ got void * @@ >> drivers/video/fbdev/amba-clcd.c:819:28: sparse: expected char [noderef] __iomem *screen_base drivers/video/fbdev/amba-clcd.c:819:28: sparse: got void * >> drivers/video/fbdev/amba-clcd.c:832:54: sparse: sparse: incorrect type in argument 3 (different address spaces) @@ expected void *cpu_addr @@ got char [noderef] __iomem *screen_base @@ drivers/video/fbdev/amba-clcd.c:832:54: sparse: expected void *cpu_addr >> drivers/video/fbdev/amba-clcd.c:832:54: sparse: got char [noderef] __iomem *screen_base drivers/video/fbdev/amba-clcd.c:839:31: sparse: sparse: incorrect type in argument 3 (different address spaces) @@ expected void *cpu_addr @@ got char [noderef] __iomem *screen_base @@ drivers/video/fbdev/amba-clcd.c:839:31: sparse: expected void *cpu_addr drivers/video/fbdev/amba-clcd.c:839:31: sparse: got char [noderef] __iomem *screen_base
vim +819 drivers/video/fbdev/amba-clcd.c
806 807 static int clcdfb_of_dma_setup(struct clcd_fb *fb) 808 { 809 unsigned long framesize; 810 dma_addr_t dma; 811 int err; 812 813 err = clcdfb_of_init_display(fb); 814 if (err) 815 return err; 816 817 framesize = PAGE_ALIGN(fb->panel->mode.xres * fb->panel->mode.yres * 818 fb->panel->bpp / 8); > 819 fb->fb.screen_base = dma_alloc_coherent(&fb->dev->dev, framesize, 820 &dma, GFP_KERNEL); 821 if (!fb->fb.screen_base) 822 return -ENOMEM; 823 824 fb->fb.fix.smem_start = dma; 825 fb->fb.fix.smem_len = framesize; 826 827 return 0; 828 } 829 830 static int clcdfb_of_dma_mmap(struct clcd_fb *fb, struct vm_area_struct *vma) 831 { > 832 return dma_mmap_wc(&fb->dev->dev, vma, fb->fb.screen_base, 833 fb->fb.fix.smem_start, fb->fb.fix.smem_len); 834 } 835
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