tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 1f5c003694fab4b1ba6cbdcc417488b975c088d0 commit: 520f30b8bba1b0f078a382bd3859f176a2126a03 [3681/3829] Merge branch 'mm-everything' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm config: sparc-randconfig-002-20231129 (https://download.01.org/0day-ci/archive/20231129/202311292022.U9pg0esq-lkp@xxxxxxxxx/config) compiler: sparc64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231129/202311292022.U9pg0esq-lkp@xxxxxxxxx/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 <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202311292022.U9pg0esq-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): arch/sparc/mm/init_64.c: In function 'arch_hugetlb_valid_size': arch/sparc/mm/init_64.c:361:24: warning: variable 'hv_pgsz_idx' set but not used [-Wunused-but-set-variable] 361 | unsigned short hv_pgsz_idx; | ^~~~~~~~~~~ arch/sparc/mm/init_64.c: In function 'sun4v_linear_pte_xor_finalize': >> arch/sparc/mm/init_64.c:2220:23: warning: variable 'pagecv_flag' set but not used [-Wunused-but-set-variable] 2220 | unsigned long pagecv_flag; | ^~~~~~~~~~~ vim +/pagecv_flag +2220 arch/sparc/mm/init_64.c c69ad0a3f7d871 David S. Miller 2012-09-06 2217 c69ad0a3f7d871 David S. Miller 2012-09-06 2218 static void __init sun4v_linear_pte_xor_finalize(void) c69ad0a3f7d871 David S. Miller 2012-09-06 2219 { 494e5b6faeda1d Khalid Aziz 2015-05-27 @2220 unsigned long pagecv_flag; 494e5b6faeda1d Khalid Aziz 2015-05-27 2221 494e5b6faeda1d Khalid Aziz 2015-05-27 2222 /* Bit 9 of TTE is no longer CV bit on M7 processor and it instead 494e5b6faeda1d Khalid Aziz 2015-05-27 2223 * enables MCD error. Do not set bit 9 on M7 processor. 494e5b6faeda1d Khalid Aziz 2015-05-27 2224 */ 494e5b6faeda1d Khalid Aziz 2015-05-27 2225 switch (sun4v_chip_type) { 494e5b6faeda1d Khalid Aziz 2015-05-27 2226 case SUN4V_CHIP_SPARC_M7: 7d484acb2f9064 Allen Pais 2017-07-24 2227 case SUN4V_CHIP_SPARC_M8: c5b8b5beee1e2a Khalid Aziz 2016-04-19 2228 case SUN4V_CHIP_SPARC_SN: 494e5b6faeda1d Khalid Aziz 2015-05-27 2229 pagecv_flag = 0x00; 494e5b6faeda1d Khalid Aziz 2015-05-27 2230 break; 494e5b6faeda1d Khalid Aziz 2015-05-27 2231 default: 494e5b6faeda1d Khalid Aziz 2015-05-27 2232 pagecv_flag = _PAGE_CV_4V; 494e5b6faeda1d Khalid Aziz 2015-05-27 2233 break; 494e5b6faeda1d Khalid Aziz 2015-05-27 2234 } c69ad0a3f7d871 David S. Miller 2012-09-06 2235 #ifndef CONFIG_DEBUG_PAGEALLOC c69ad0a3f7d871 David S. Miller 2012-09-06 2236 if (cpu_pgsz_mask & HV_PGSZ_MASK_256MB) { c69ad0a3f7d871 David S. Miller 2012-09-06 2237 kern_linear_pte_xor[1] = (_PAGE_VALID | _PAGE_SZ256MB_4V) ^ 922631b988d8cb David S. Miller 2013-09-18 2238 PAGE_OFFSET; 494e5b6faeda1d Khalid Aziz 2015-05-27 2239 kern_linear_pte_xor[1] |= (_PAGE_CP_4V | pagecv_flag | c69ad0a3f7d871 David S. Miller 2012-09-06 2240 _PAGE_P_4V | _PAGE_W_4V); c69ad0a3f7d871 David S. Miller 2012-09-06 2241 } else { c69ad0a3f7d871 David S. Miller 2012-09-06 2242 kern_linear_pte_xor[1] = kern_linear_pte_xor[0]; c69ad0a3f7d871 David S. Miller 2012-09-06 2243 } c69ad0a3f7d871 David S. Miller 2012-09-06 2244 c69ad0a3f7d871 David S. Miller 2012-09-06 2245 if (cpu_pgsz_mask & HV_PGSZ_MASK_2GB) { c69ad0a3f7d871 David S. Miller 2012-09-06 2246 kern_linear_pte_xor[2] = (_PAGE_VALID | _PAGE_SZ2GB_4V) ^ 922631b988d8cb David S. Miller 2013-09-18 2247 PAGE_OFFSET; 494e5b6faeda1d Khalid Aziz 2015-05-27 2248 kern_linear_pte_xor[2] |= (_PAGE_CP_4V | pagecv_flag | c69ad0a3f7d871 David S. Miller 2012-09-06 2249 _PAGE_P_4V | _PAGE_W_4V); c69ad0a3f7d871 David S. Miller 2012-09-06 2250 } else { c69ad0a3f7d871 David S. Miller 2012-09-06 2251 kern_linear_pte_xor[2] = kern_linear_pte_xor[1]; c69ad0a3f7d871 David S. Miller 2012-09-06 2252 } c69ad0a3f7d871 David S. Miller 2012-09-06 2253 c69ad0a3f7d871 David S. Miller 2012-09-06 2254 if (cpu_pgsz_mask & HV_PGSZ_MASK_16GB) { c69ad0a3f7d871 David S. Miller 2012-09-06 2255 kern_linear_pte_xor[3] = (_PAGE_VALID | _PAGE_SZ16GB_4V) ^ 922631b988d8cb David S. Miller 2013-09-18 2256 PAGE_OFFSET; 494e5b6faeda1d Khalid Aziz 2015-05-27 2257 kern_linear_pte_xor[3] |= (_PAGE_CP_4V | pagecv_flag | c69ad0a3f7d871 David S. Miller 2012-09-06 2258 _PAGE_P_4V | _PAGE_W_4V); c69ad0a3f7d871 David S. Miller 2012-09-06 2259 } else { c69ad0a3f7d871 David S. Miller 2012-09-06 2260 kern_linear_pte_xor[3] = kern_linear_pte_xor[2]; c69ad0a3f7d871 David S. Miller 2012-09-06 2261 } c69ad0a3f7d871 David S. Miller 2012-09-06 2262 #endif c69ad0a3f7d871 David S. Miller 2012-09-06 2263 } c69ad0a3f7d871 David S. Miller 2012-09-06 2264 :::::: The code at line 2220 was first introduced by commit :::::: 494e5b6faeda1d1e830a13e10b3c7bc323f35d97 sparc: Resolve conflict between sparc v9 and M7 on usage of bit 9 of TTE :::::: TO: Khalid Aziz <khalid.aziz@xxxxxxxxxx> :::::: CC: David S. Miller <davem@xxxxxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
