[melver:cap-analysis/dev 23/35] lib/test_capability-analysis.c:125 test_spinlock_trylock_extra() error: uninitialized symbol 'flags'.

[melver:cap-analysis/dev 23/35] lib/test_capability-analysis.c:125 test_spinlock_trylock_extra() error: uninitialized symbol 'flags'.

[kernel test robot]

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
TO: elver@google.com

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/melver/linux.git cap-analysis/dev
head:   b57fd8af63116c56536eb40f04dbe4f2206ec4ed
commit: 32b884d94862a5295719faf9e1c3b5eef162cca4 [23/35] compiler-capability-analysis: Remove __cond_lock() function-like helper
:::::: branch date: 6 days ago
:::::: commit date: 6 days ago
config: sparc64-randconfig-r072-20250922 (https://download.01.org/0day-ci/archive/20250924/202509241125.8lkyg6o7-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 12.5.0

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@intel.com>
| Reported-by: Dan Carpenter <error27@gmail.com>
| Closes: https://lore.kernel.org/r/202509241125.8lkyg6o7-lkp@intel.com/

New smatch warnings:
lib/test_capability-analysis.c:125 test_spinlock_trylock_extra() error: uninitialized symbol 'flags'.

Old smatch warnings:
lib/test_capability-analysis.c:101 test_raw_spinlock_trylock_extra() warn: mixing irq and irqsave
include/linux/spinlock.h:542 class_raw_spinlock_try_constructor() warn: passing zero to 'ERR_PTR'
lib/test_capability-analysis.c:125 test_spinlock_trylock_extra() warn: mixing irq and irqsave
include/linux/spinlock.h:581 class_spinlock_try_constructor() warn: passing zero to 'ERR_PTR'
include/linux/mutex.h:230 class_mutex_try_constructor() warn: passing zero to 'ERR_PTR'
include/linux/rwsem.h:262 class_rwsem_read_try_constructor() warn: passing zero to 'ERR_PTR'
include/linux/rwsem.h:270 class_rwsem_write_try_constructor() warn: passing zero to 'ERR_PTR'

vim +/flags +125 lib/test_capability-analysis.c

821a2ecb55c76ae Marco Elver 2025-01-23  107  
821a2ecb55c76ae Marco Elver 2025-01-23  108  TEST_SPINLOCK_COMMON(spinlock,
821a2ecb55c76ae Marco Elver 2025-01-23  109  		     spinlock_t,
821a2ecb55c76ae Marco Elver 2025-01-23  110  		     spin_lock_init,
821a2ecb55c76ae Marco Elver 2025-01-23  111  		     spin_lock,
821a2ecb55c76ae Marco Elver 2025-01-23  112  		     spin_unlock,
821a2ecb55c76ae Marco Elver 2025-01-23  113  		     spin_trylock,
821a2ecb55c76ae Marco Elver 2025-01-23  114  		     TEST_OP_RW);
821a2ecb55c76ae Marco Elver 2025-01-23  115  static void __used test_spinlock_trylock_extra(struct test_spinlock_data *d)
821a2ecb55c76ae Marco Elver 2025-01-23  116  {
821a2ecb55c76ae Marco Elver 2025-01-23  117  	unsigned long flags;
821a2ecb55c76ae Marco Elver 2025-01-23  118  
821a2ecb55c76ae Marco Elver 2025-01-23  119  	if (spin_trylock_irq(&d->lock)) {
821a2ecb55c76ae Marco Elver 2025-01-23  120  		d->counter++;
821a2ecb55c76ae Marco Elver 2025-01-23  121  		spin_unlock_irq(&d->lock);
821a2ecb55c76ae Marco Elver 2025-01-23  122  	}
821a2ecb55c76ae Marco Elver 2025-01-23  123  	if (spin_trylock_irqsave(&d->lock, flags)) {
821a2ecb55c76ae Marco Elver 2025-01-23  124  		d->counter++;
821a2ecb55c76ae Marco Elver 2025-01-23 @125  		spin_unlock_irqrestore(&d->lock, flags);
821a2ecb55c76ae Marco Elver 2025-01-23  126  	}
821a2ecb55c76ae Marco Elver 2025-01-23  127  	scoped_cond_guard(spinlock_try, return, &d->lock) {
821a2ecb55c76ae Marco Elver 2025-01-23  128  		d->counter++;
821a2ecb55c76ae Marco Elver 2025-01-23  129  	}
821a2ecb55c76ae Marco Elver 2025-01-23  130  }
821a2ecb55c76ae Marco Elver 2025-01-23  131  

:::::: The code at line 125 was first introduced by commit
:::::: 821a2ecb55c76aebb2a5fc53c7a49c2bc21a59af locking/rwlock, spinlock: Support Clang's capability analysis

:::::: TO: Marco Elver <elver@google.com>
:::::: CC: Marco Elver <elver@google.com>

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