linux-kernel - Re: [PATCH v3 2/2] selftests/futex: Create test for robust list

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Message-ID: <Zwmut67RooOBFNI3@rli9-mobl>
Date: Sat, 12 Oct 2024 07:03:19 +0800
From: kernel test robot <lkp@...el.com>
To: André Almeida <andrealmeid@...lia.com>, Thomas Gleixner
	<tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, Peter Zijlstra
	<peterz@...radead.org>, Darren Hart <dvhart@...radead.org>, Davidlohr Bueso
	<dave@...olabs.net>, Shuah Khan <skhan@...uxfoundation.org>
CC: <oe-kbuild-all@...ts.linux.dev>, <linux-kernel@...r.kernel.org>,
	<linux-kselftest@...r.kernel.org>, <kernel-dev@...lia.com>,
	André Almeida <andrealmeid@...lia.com>
Subject: Re: [PATCH v3 2/2] selftests/futex: Create test for robust list

Hi André,

kernel test robot noticed the following build warnings:

[auto build test WARNING on tip/locking/core]
[also build test WARNING on linus/master v6.12-rc2 next-20241011]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Andr-Almeida/selftests-futex-Add-ASSERT_-macros/20241010-091311
base:   tip/locking/core
patch link:    https://lore.kernel.org/r/20241010011142.905297-3-andrealmeid%40igalia.com
patch subject: [PATCH v3 2/2] selftests/futex: Create test for robust list
:::::: branch date: 2 days ago
:::::: commit date: 2 days ago
compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241012/202410120549.1KpTVqTu-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@...el.com>
| Closes: https://lore.kernel.org/r/202410120549.1KpTVqTu-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> robust_list.c:121:44: warning: passing 'int *' to parameter of type 'unsigned int *' converts between pointers to integer types with different sign [-Wpointer-sign]
     121 |         if (atomic_compare_exchange_strong(futex, &zero, tid)) {
         |                                                   ^~~~~
   /opt/cross/clang-3b5b5c1ec4/lib/clang/18/include/stdatomic.h:144:112: note: expanded from macro 'atomic_compare_exchange_strong'
     144 | #define atomic_compare_exchange_strong(object, expected, desired) __c11_atomic_compare_exchange_strong(object, expected, desired, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)
         |                                                                                                                ^~~~~~~~
   1 warning generated.

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki