tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: c02455c4cce8052f74fc11c09e9073c01c7f33a4 commit: 8eaba08b2d72718a40cafe3402ab4f26b0dc62eb [2195/2195] x86/cpu/zhaoxin: Encapsulate access to global variables within functions config: x86_64-randconfig-2005-20250501 (https://download.01.org/0day-ci/archive/20250626/202506260155.UP7h1X4B-lkp@i...) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250626/202506260155.UP7h1X4B-lkp@i...) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202506260155.UP7h1X4B-lkp@intel.com/ All warnings (new ones prefixed by >>):

...

arch/x86/kernel/early-quirks.c:722:6: warning: no previous prototype for 'is_zhaoxin_kh40000' [-Wmissing-prototypes] 722 | bool is_zhaoxin_kh40000(void) | ^~~~~~~~~~~~~~~~~~ arch/x86/kernel/early-quirks.c: In function 'quirk_zhaoxin_dma_patch': arch/x86/kernel/early-quirks.c:737:28: error: 'kh40000_dma_direct_ops' undeclared (first use in this function) 737 | dma_ops = &kh40000_dma_direct_ops; | ^~~~~~~~~~~~~~~~~~~~~~ arch/x86/kernel/early-quirks.c:737:28: note: each undeclared identifier is reported only once for each function it appears in -- kernel/dma/contiguous.c:209:13: warning: no previous prototype for 'is_zhaoxin_kh40000' [-Wmissing-prototypes] 209 | bool __weak is_zhaoxin_kh40000(void) | ^~~~~~~~~~~~~~~~~~

vim +/is_zhaoxin_kh40000 +722 arch/x86/kernel/early-quirks.c 721

722 bool is_zhaoxin_kh40000(void) 723 { 724 return zhaoxin_kh40000; 725 } 726

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