tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.x86/paravirt head: 269b8685f55e335b82b64f9858a751ba3d5ea8d8 commit: 124d6af5a5f559e516ed2c6ea857e889ed293b43 [7/8] x86/paravirt: Standardize 'insn_buff' variable names reproduce: # apt-get install sparse git checkout 124d6af5a5f559e516ed2c6ea857e889ed293b43 make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
If you fix the issue, kindly add following tag Reported-by: kbuild test robot <[email protected]> sparse warnings: (new ones prefixed by >>) >> arch/x86/events/intel/ds.c:359:17: sparse: sparse: incorrect type in >> initializer (different address spaces) @@ expected void const [noderef] >> <asn:3> *__vpp_verify @@ got sn:3> *__vpp_verify @@ >> arch/x86/events/intel/ds.c:359:17: sparse: expected void const [noderef] >> <asn:3> *__vpp_verify >> arch/x86/events/intel/ds.c:359:17: sparse: got void ** vim +359 arch/x86/events/intel/ds.c 333 334 static int alloc_pebs_buffer(int cpu) 335 { 336 struct cpu_hw_events *hwev = per_cpu_ptr(&cpu_hw_events, cpu); 337 struct debug_store *ds = hwev->ds; 338 size_t bsiz = x86_pmu.pebs_buffer_size; 339 int max, node = cpu_to_node(cpu); 340 void *buffer, *insn_buff, *cea; 341 342 if (!x86_pmu.pebs) 343 return 0; 344 345 buffer = dsalloc_pages(bsiz, GFP_KERNEL, cpu); 346 if (unlikely(!buffer)) 347 return -ENOMEM; 348 349 /* 350 * HSW+ already provides us the eventing ip; no need to allocate this 351 * buffer then. 352 */ 353 if (x86_pmu.intel_cap.pebs_format < 2) { 354 insn_buff = kzalloc_node(PEBS_FIXUP_SIZE, GFP_KERNEL, node); 355 if (!insn_buff) { 356 dsfree_pages(buffer, bsiz); 357 return -ENOMEM; 358 } > 359 per_cpu(insn_buff, cpu) = insn_buff; 360 } 361 hwev->ds_pebs_vaddr = buffer; 362 /* Update the cpu entry area mapping */ 363 cea = &get_cpu_entry_area(cpu)->cpu_debug_buffers.pebs_buffer; 364 ds->pebs_buffer_base = (unsigned long) cea; 365 ds_update_cea(cea, buffer, bsiz, PAGE_KERNEL); 366 ds->pebs_index = ds->pebs_buffer_base; 367 max = x86_pmu.pebs_record_size * (bsiz / x86_pmu.pebs_record_size); 368 ds->pebs_absolute_maximum = ds->pebs_buffer_base + max; 369 return 0; 370 } 371 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
