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charset=us-ascii Content-Disposition: inline tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 8f0b4cce4481fb22653697cced8d0d04027cb1e8 commit: 4708fba19adee9ba14ef28af6face4ab043d9cd6 powerpc/vpa_dtl: Add interface to expose vpa dtl counters via perf date: 3 months ago config: powerpc64-randconfig-r133-20251215 (https://download.01.org/0day-ci/archive/20251215/202512151425.cwUtLbPF-lkp@intel.com/config) compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251215/202512151425.cwUtLbPF-lkp@intel.com/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 | Closes: https://lore.kernel.org/oe-kbuild-all/202512151425.cwUtLbPF-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> arch/powerpc/perf/vpa-dtl.c:254:30: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] @@ got restricted __be32 [usertype] @@ arch/powerpc/perf/vpa-dtl.c:254:30: sparse: expected unsigned int [usertype] arch/powerpc/perf/vpa-dtl.c:254:30: sparse: got restricted __be32 [usertype] vim +254 arch/powerpc/perf/vpa-dtl.c 241 242 static int vpa_dtl_event_add(struct perf_event *event, int flags) 243 { 244 int ret, hwcpu; 245 unsigned long addr; 246 struct vpa_dtl *dtl = &per_cpu(vpa_dtl_cpu, event->cpu); 247 248 /* 249 * Register our dtl buffer with the hypervisor. The 250 * HV expects the buffer size to be passed in the second 251 * word of the buffer. Refer section '14.11.3.2. H_REGISTER_VPA' 252 * from PAPR for more information. 253 */ > 254 ((u32 *)dtl->buf)[1] = cpu_to_be32(DISPATCH_LOG_BYTES); 255 dtl->last_idx = 0; 256 257 hwcpu = get_hard_smp_processor_id(event->cpu); 258 addr = __pa(dtl->buf); 259 260 ret = register_dtl(hwcpu, addr); 261 if (ret) { 262 pr_warn("DTL registration for cpu %d (hw %d) failed with %d\n", 263 event->cpu, hwcpu, ret); 264 return ret; 265 } 266 267 /* set our initial buffer indices */ 268 lppaca_of(event->cpu).dtl_idx = 0; 269 270 /* 271 * Ensure that our updates to the lppaca fields have 272 * occurred before we actually enable the logging 273 */ 274 smp_wmb(); 275 276 /* enable event logging */ 277 lppaca_of(event->cpu).dtl_enable_mask = event->attr.config; 278 279 vpa_dtl_start_hrtimer(event); 280 281 return 0; 282 } 283 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki