Hi Dmitry, [auto build test WARNING on net-next/master] [also build test WARNING on v4.10-rc4 next-20170116] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Dmitry-Vyukov/net-irda-fix-lockdep-annotation/20170116-183405 config: x86_64-randconfig-s2-01161850 (attached as .config) compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): net/irda/irqueue.c: In function 'hashbin_delete': >> net/irda/irqueue.c:393: warning: unused variable 'depth' At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" vim +/depth +393 net/irda/irqueue.c 377 378 379 /* 380 * Function hashbin_delete (hashbin, free_func) 381 * 382 * Destroy hashbin, the free_func can be a user supplied special routine 383 * for deallocating this structure if it's complex. If not the user can 384 * just supply kfree, which should take care of the job. 385 */ 386 #ifdef CONFIG_LOCKDEP 387 static atomic_t hashbin_lock_depth = ATOMIC_INIT(0); 388 #endif 389 int hashbin_delete( hashbin_t* hashbin, FREE_FUNC free_func) 390 { 391 irda_queue_t* queue; 392 unsigned long flags = 0; > 393 int i, depth = 0; 394 395 IRDA_ASSERT(hashbin != NULL, return -1;); 396 IRDA_ASSERT(hashbin->magic == HB_MAGIC, return -1;); 397 398 /* Synchronize */ 399 if ( hashbin->hb_type & HB_LOCK ) { 400 #ifdef CONFIG_LOCKDEP 401 depth = atomic_inc_return(&hashbin_lock_depth) - 1; --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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