[android-common:main-16k-gs-shusky-5.15 35/35] drivers/cma/mm/mem_phys_layout.c:239:48: error: use of undeclared identifier 'PFN_SECTION_SHIFT'
kernel test robot <[email protected]> Tue, 28 Jul 2026 17:26:40 +0800
| Newsgroups | dev.linux.lists.oe-kbuild-all |
|---|---|
| Message-ID | <[email protected]> |
Hi Juan, FYI, the error/warning still remains. tree: https://android.googlesource.com/kernel/common main-16k-gs-shusky-5.15 head: d0ed0375a65ca817f907805e163e103822348f02 commit: 90b05bcbb174b28bb0bc20f6d7f68c092a66a64f [35/35] ANDROID: mm: Get Physical memory model for the system config: i386-randconfig-001 (https://download.01.org/0day-ci/archive/20260728/[email protected]/config) compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project 890b11e09e45e9d8b29f2f94f22052be3934e757) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260728/[email protected]/reproduce) 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 <[email protected]> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ All errors (new ones prefixed by >>): drivers/cma/mm/mem_phys_layout.c:189:16: warning: mixing declarations and code is a C99 extension [-Wdeclaration-after-statement] 189 | struct page *page = pfn_to_page(pfn); | ^ drivers/cma/mm/mem_phys_layout.c:237:48: error: use of undeclared identifier 'MAX_PAGE_ORDER' 237 | pr_info("MAX_PAGE_ORDER = %d", MAX_PAGE_ORDER); | ^~~~~~~~~~~~~~ >> drivers/cma/mm/mem_phys_layout.c:239:48: error: use of undeclared identifier 'PFN_SECTION_SHIFT' 239 | pr_info("PFN_SECTION_SHIFT = %d", PFN_SECTION_SHIFT); | ^~~~~~~~~~~~~~~~~ drivers/cma/mm/mem_phys_layout.c:240:49: error: use of undeclared identifier 'MAX_PAGE_ORDER' 240 | pr_info("(MAX_PAGE_ORDER + PAGE_SHIFT) = %d", (MAX_PAGE_ORDER + PAGE_SHIFT)); | ^~~~~~~~~~~~~~ >> drivers/cma/mm/mem_phys_layout.c:241:48: error: use of undeclared identifier 'SECTION_SIZE_BITS' 241 | pr_info("SECTION_SIZE_BITS = %d", SECTION_SIZE_BITS); | ^~~~~~~~~~~~~~~~~ drivers/cma/mm/mem_phys_layout.c:242:54: error: use of undeclared identifier 'SECTION_SIZE_BITS' 242 | pr_info("2 ^ SECTION_SIZE_BITS = %d", (1 << SECTION_SIZE_BITS)); | ^~~~~~~~~~~~~~~~~ >> drivers/cma/mm/mem_phys_layout.c:243:49: error: use of undeclared identifier 'SUBSECTION_SIZE' 243 | pr_info("SUBSECTION_SIZE = %ld", SUBSECTION_SIZE); | ^~~~~~~~~~~~~~~ >> drivers/cma/mm/mem_phys_layout.c:244:49: error: use of undeclared identifier 'SUBSECTIONS_PER_SECTION' 244 | pr_info("SUBSECTIONS_PER_SECTION = %ld", SUBSECTIONS_PER_SECTION); | ^~~~~~~~~~~~~~~~~~~~~~~ drivers/cma/mm/mem_phys_layout.c:246:4: error: use of undeclared identifier 'SUBSECTION_SIZE' 246 | SUBSECTION_SIZE * SUBSECTIONS_PER_SECTION, | ^~~~~~~~~~~~~~~ drivers/cma/mm/mem_phys_layout.c:246:22: error: use of undeclared identifier 'SUBSECTIONS_PER_SECTION' 246 | SUBSECTION_SIZE * SUBSECTIONS_PER_SECTION, | ^~~~~~~~~~~~~~~~~~~~~~~ drivers/cma/mm/mem_phys_layout.c:247:4: error: use of undeclared identifier 'SUBSECTION_SIZE' 247 | SUBSECTION_SIZE * SUBSECTIONS_PER_SECTION / 1024 / 1024); | ^~~~~~~~~~~~~~~ drivers/cma/mm/mem_phys_layout.c:247:22: error: use of undeclared identifier 'SUBSECTIONS_PER_SECTION' 247 | SUBSECTION_SIZE * SUBSECTIONS_PER_SECTION / 1024 / 1024); | ^~~~~~~~~~~~~~~~~~~~~~~ >> drivers/cma/mm/mem_phys_layout.c:248:43: error: use of undeclared identifier 'PAGES_PER_SUBSECTION' 248 | pr_info("PAGES_PER_SUBSECTION = %ld", PAGES_PER_SUBSECTION); | ^~~~~~~~~~~~~~~~~~~~ >> drivers/cma/mm/mem_phys_layout.c:252:32: error: implicit declaration of function '__pfn_to_section' [-Werror,-Wimplicit-function-declaration] 252 | struct mem_section *section = __pfn_to_section(start_pfn); | ^ >> drivers/cma/mm/mem_phys_layout.c:252:22: error: incompatible integer to pointer conversion initializing 'struct mem_section *' with an expression of type 'int' [-Wint-conversion] 252 | struct mem_section *section = __pfn_to_section(start_pfn); | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> drivers/cma/mm/mem_phys_layout.c:253:22: error: implicit declaration of function '__section_mem_map_addr' [-Werror,-Wimplicit-function-declaration] 253 | struct page *page = __section_mem_map_addr(section); | ^ >> drivers/cma/mm/mem_phys_layout.c:253:15: error: incompatible integer to pointer conversion initializing 'struct page *' with an expression of type 'int' [-Wint-conversion] 253 | struct page *page = __section_mem_map_addr(section); | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/cma/mm/mem_phys_layout.c:250:14: warning: mixing declarations and code is a C99 extension [-Wdeclaration-after-statement] 250 | phys_addr_t start_addr = memblock_start_of_DRAM(); | ^ 2 warnings and 16 errors generated. vim +/PFN_SECTION_SHIFT +239 drivers/cma/mm/mem_phys_layout.c 234 235 static void print_phys_memory_model(void) 236 { 237 pr_info("MAX_PAGE_ORDER = %d", MAX_PAGE_ORDER); 238 pr_info("pageblock_order = %d", pageblock_order); > 239 pr_info("PFN_SECTION_SHIFT = %d", PFN_SECTION_SHIFT); 240 pr_info("(MAX_PAGE_ORDER + PAGE_SHIFT) = %d", (MAX_PAGE_ORDER + PAGE_SHIFT)); > 241 pr_info("SECTION_SIZE_BITS = %d", SECTION_SIZE_BITS); 242 pr_info("2 ^ SECTION_SIZE_BITS = %d", (1 << SECTION_SIZE_BITS)); > 243 pr_info("SUBSECTION_SIZE = %ld", SUBSECTION_SIZE); > 244 pr_info("SUBSECTIONS_PER_SECTION = %ld", SUBSECTIONS_PER_SECTION); 245 pr_info("SUBSECTION_SIZE * SUBSECTIONS_PER_SECTION = %ld = %ldMiB", 246 SUBSECTION_SIZE * SUBSECTIONS_PER_SECTION, 247 SUBSECTION_SIZE * SUBSECTIONS_PER_SECTION / 1024 / 1024); > 248 pr_info("PAGES_PER_SUBSECTION = %ld", PAGES_PER_SUBSECTION); 249 250 phys_addr_t start_addr = memblock_start_of_DRAM(); 251 unsigned long start_pfn = PHYS_PFN(start_addr); > 252 struct mem_section *section = __pfn_to_section(start_pfn); > 253 struct page *page = __section_mem_map_addr(section); 254 255 pr_info("Using struct mem_section"); 256 pr_info(" PFN: %10llu == %#010Lx struct page[mem %#010Lx], PHYS[mem %#010Lx]", 257 (u64)start_pfn, 258 (u64)start_pfn, 259 (u64) page, 260 (u64)PFN_PHYS(start_pfn)); 261 } 262 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki