Re: [akpm-mm:mm-unstable 36/78] test_memcontrol.c:201:6: warning: variable 'fd4_closed' is used uninitialized whenever 'if' condition is true

[Andrew Morton <akpm@linux-foundation.org>]

On Sun, 28 Jul 2024 11:58:47 +0800 kernel test robot <lkp@intel.com> wrote:

> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable
> head:   b39b3892d20a337489c55806f91af581474f3943
> commit: f2db5cca8182337f4ad485ebfd532b1a2d1c223a [36/78] mm, memcg: cg2 memory{.swap,}.peak write tests
> :::::: branch date: 2 days ago
> :::::: commit date: 3 days ago
> compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240727/202407272301.bBC2CidR-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 <lkp@intel.com>
> | Closes: https://lore.kernel.org/r/202407272301.bBC2CidR-lkp@intel.com/
> 
> All warnings (new ones prefixed by >>):
> 
> >> test_memcontrol.c:201:6: warning: variable 'fd4_closed' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized]

um,

	bool fd2_closed = false, fd3_closed = false, fd4_closed = false;

fd4_closed cannot possibly be used uninitialized?