tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 37dfbfbdca66834bc0f64ec9b35e09ac6c8898da commit: 0a9e723f97367373133a4951f26a7b515223ca7b [2515/12022] csky: Coding convention del unnecessary definition config: csky-randconfig-s031-20210223 (attached as .config) compiler: csky-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: v0.6.3-229-g60c1f270-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=0a9e723f97367373133a4951f26a7b515223ca7b git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 0a9e723f97367373133a4951f26a7b515223ca7b # 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=csky If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/video/fbdev/udlfb.c: In function 'dlfb_ops_mmap': >> drivers/video/fbdev/udlfb.c:343:52: error: 'PAGE_SHARED' undeclared (first use in this function); did you mean 'VM_SHARED'? 343 | if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) | ^~~~~~~~~~~ | VM_SHARED drivers/video/fbdev/udlfb.c:343:52: note: each undeclared identifier is reported only once for each function it appears in -- drivers/video/fbdev/smscufx.c: In function 'ufx_ops_mmap': >> drivers/video/fbdev/smscufx.c:796:52: error: 'PAGE_SHARED' undeclared (first use in this function); did you mean 'VM_SHARED'? 796 | if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) | ^~~~~~~~~~~ | VM_SHARED drivers/video/fbdev/smscufx.c:796:52: note: each undeclared identifier is reported only once for each function it appears in vim +343 drivers/video/fbdev/udlfb.c 59277b679f8b5c drivers/staging/udlfb/udlfb.c Bernie Thompson 2009-11-24 321 4574203f45eb26 drivers/staging/udlfb/udlfb.c Bernie Thompson 2010-02-15 322 static int dlfb_ops_mmap(struct fb_info *info, struct vm_area_struct *vma) 88e58b1a42f8c1 drivers/staging/udlfb/udlfb.c Roberto De Ioris 2009-06-03 323 { 88e58b1a42f8c1 drivers/staging/udlfb/udlfb.c Roberto De Ioris 2009-06-03 324 unsigned long start = vma->vm_start; 88e58b1a42f8c1 drivers/staging/udlfb/udlfb.c Roberto De Ioris 2009-06-03 325 unsigned long size = vma->vm_end - vma->vm_start; 88e58b1a42f8c1 drivers/staging/udlfb/udlfb.c Roberto De Ioris 2009-06-03 326 unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; 88e58b1a42f8c1 drivers/staging/udlfb/udlfb.c Roberto De Ioris 2009-06-03 327 unsigned long page, pos; 88e58b1a42f8c1 drivers/staging/udlfb/udlfb.c Roberto De Ioris 2009-06-03 328 04f8afbec37f63 drivers/video/udlfb.c Tomi Valkeinen 2013-04-18 329 if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) 04f8afbec37f63 drivers/video/udlfb.c Tomi Valkeinen 2013-04-18 330 return -EINVAL; 04f8afbec37f63 drivers/video/udlfb.c Tomi Valkeinen 2013-04-18 331 if (size > info->fix.smem_len) 04f8afbec37f63 drivers/video/udlfb.c Tomi Valkeinen 2013-04-18 332 return -EINVAL; 04f8afbec37f63 drivers/video/udlfb.c Tomi Valkeinen 2013-04-18 333 if (offset > info->fix.smem_len - size) 88e58b1a42f8c1 drivers/staging/udlfb/udlfb.c Roberto De Ioris 2009-06-03 334 return -EINVAL; 88e58b1a42f8c1 drivers/staging/udlfb/udlfb.c Roberto De Ioris 2009-06-03 335 88e58b1a42f8c1 drivers/staging/udlfb/udlfb.c Roberto De Ioris 2009-06-03 336 pos = (unsigned long)info->fix.smem_start + offset; 88e58b1a42f8c1 drivers/staging/udlfb/udlfb.c Roberto De Ioris 2009-06-03 337 5865889fe43194 drivers/video/fbdev/udlfb.c Ladislav Michl 2018-01-16 338 dev_dbg(info->dev, "mmap() framebuffer addr:%lu size:%lu\n", 2685cffa9e7992 drivers/staging/udlfb/udlfb.c Bernie Thompson 2010-09-05 339 pos, size); 2685cffa9e7992 drivers/staging/udlfb/udlfb.c Bernie Thompson 2010-09-05 340 88e58b1a42f8c1 drivers/staging/udlfb/udlfb.c Roberto De Ioris 2009-06-03 341 while (size > 0) { 88e58b1a42f8c1 drivers/staging/udlfb/udlfb.c Roberto De Ioris 2009-06-03 342 page = vmalloc_to_pfn((void *)pos); f05e0575ed334a drivers/staging/udlfb/udlfb.c Greg Kroah-Hartman 2009-06-03 @343 if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) 88e58b1a42f8c1 drivers/staging/udlfb/udlfb.c Roberto De Ioris 2009-06-03 344 return -EAGAIN; f05e0575ed334a drivers/staging/udlfb/udlfb.c Greg Kroah-Hartman 2009-06-03 345 88e58b1a42f8c1 drivers/staging/udlfb/udlfb.c Roberto De Ioris 2009-06-03 346 start += PAGE_SIZE; 88e58b1a42f8c1 drivers/staging/udlfb/udlfb.c Roberto De Ioris 2009-06-03 347 pos += PAGE_SIZE; 88e58b1a42f8c1 drivers/staging/udlfb/udlfb.c Roberto De Ioris 2009-06-03 348 if (size > PAGE_SIZE) 88e58b1a42f8c1 drivers/staging/udlfb/udlfb.c Roberto De Ioris 2009-06-03 349 size -= PAGE_SIZE; 88e58b1a42f8c1 drivers/staging/udlfb/udlfb.c Roberto De Ioris 2009-06-03 350 else 88e58b1a42f8c1 drivers/staging/udlfb/udlfb.c Roberto De Ioris 2009-06-03 351 size = 0; 88e58b1a42f8c1 drivers/staging/udlfb/udlfb.c Roberto De Ioris 2009-06-03 352 } 88e58b1a42f8c1 drivers/staging/udlfb/udlfb.c Roberto De Ioris 2009-06-03 353 88e58b1a42f8c1 drivers/staging/udlfb/udlfb.c Roberto De Ioris 2009-06-03 354 return 0; 88e58b1a42f8c1 drivers/staging/udlfb/udlfb.c Roberto De Ioris 2009-06-03 355 } 88e58b1a42f8c1 drivers/staging/udlfb/udlfb.c Roberto De Ioris 2009-06-03 356 :::::: The code at line 343 was first introduced by commit :::::: f05e0575ed334a23dad91b8f6ed0ac42a3996b8d Staging: udlfb: clean up checkpatch warnings in udlfb.c :::::: TO: Greg Kroah-Hartman <gregkh@xxxxxxx> :::::: CC: Greg Kroah-Hartman <gregkh@xxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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