Re: [axboe:io_uring-user-acct.v2 2/2] io_uring/rsrc.c:52:46: warning: variable 'count' is uninitialized when used here

[Jens Axboe <axboe@kernel.dk>]

On 5/5/26 1:58 AM, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git io_uring-user-acct.v2
> head:   3db2fc5d524bb4877e39659d0180dfc0112893ac
> commit: 3db2fc5d524bb4877e39659d0180dfc0112893ac [2/2] io_uring/rsrc: add huge page accounting for registered buffers
> config: um-allnoconfig (https://download.01.org/0day-ci/archive/20260505/202605051516.EwH8GTl5-lkp@intel.com/config)
> compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 5bac06718f502014fade905512f1d26d578a18f3)
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260505/202605051516.EwH8GTl5-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/oe-kbuild-all/202605051516.EwH8GTl5-lkp@intel.com/
> 
> All warnings (new ones prefixed by >>):
> 
>>> io_uring/rsrc.c:52:46: warning: variable 'count' is uninitialized when used here [-Wuninitialized]
>       52 |         xa_store(&ctx->hpage_acct, key, xa_mk_value(count), GFP_KERNEL_ACCOUNT);
>          |                                                     ^~~~~
>    io_uring/rsrc.c:37:21: note: initialize the variable 'count' to silence this warning
>       37 |         unsigned long count;
>          |                            ^
>          |                             = 0
>    1 warning generated.

This one is already fixed in the current tree.

-- 
Jens Axboe