[PATCH v11 1/6] drm: Add arch arm64 for drm_clflush_virt_range

[kernel test robot]

Hi Michael,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on drm-tip/drm-tip]
[also build test WARNING on drm/drm-next]
[cannot apply to drm-intel/for-linux-next v5.17-rc5 next-20220222]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Michael-Cheng/Use-drm_clflush-instead-of-clflush/20220223-140110
base:   git://anongit.freedesktop.org/drm/drm-tip drm-tip
config: h8300-randconfig-r014-20220221 (https://download.01.org/0day-ci/archive/20220223/202202231707.Syvm9oFu-lkp@intel.com/config)
compiler: h8300-linux-gcc (GCC) 11.2.0
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
        # https://github.com/0day-ci/linux/commit/f4c92ba1f52db578a26ac9944e2cbe52c548e8e9
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Michael-Cheng/Use-drm_clflush-instead-of-clflush/20220223-140110
        git checkout f4c92ba1f52db578a26ac9944e2cbe52c548e8e9
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=h8300 SHELL=/bin/bash drivers/gpu/drm/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp at intel.com>

All warnings (new ones prefixed by >>):

   In file included from drivers/gpu/drm/drm_cache.c:31:
>> include/linux/cacheflush.h:12:46: warning: 'struct folio' declared inside parameter list will not be visible outside of this definition or declaration
      12 | static inline void flush_dcache_folio(struct folio *folio)
         |                                              ^~~~~


vim +12 include/linux/cacheflush.h

522a0032af00550 Matthew Wilcox (Oracle  2021-11-06   6) 
522a0032af00550 Matthew Wilcox (Oracle  2021-11-06   7) #if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
522a0032af00550 Matthew Wilcox (Oracle  2021-11-06   8) #ifndef ARCH_IMPLEMENTS_FLUSH_DCACHE_FOLIO
522a0032af00550 Matthew Wilcox (Oracle  2021-11-06   9) void flush_dcache_folio(struct folio *folio);
522a0032af00550 Matthew Wilcox (Oracle  2021-11-06  10) #endif
522a0032af00550 Matthew Wilcox (Oracle  2021-11-06  11) #else
522a0032af00550 Matthew Wilcox (Oracle  2021-11-06 @12) static inline void flush_dcache_folio(struct folio *folio)
522a0032af00550 Matthew Wilcox (Oracle  2021-11-06  13) {
522a0032af00550 Matthew Wilcox (Oracle  2021-11-06  14) }
522a0032af00550 Matthew Wilcox (Oracle  2021-11-06  15) #define ARCH_IMPLEMENTS_FLUSH_DCACHE_FOLIO 0
522a0032af00550 Matthew Wilcox (Oracle  2021-11-06  16) #endif /* ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE */
522a0032af00550 Matthew Wilcox (Oracle  2021-11-06  17) 

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org