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Message-ID: <202304211445.r8UQGW3F-lkp@intel.com>
Date:   Fri, 21 Apr 2023 15:06:29 +0800
From:   kernel test robot <lkp@...el.com>
To:     David Gow <davidgow@...gle.com>,
        Benjamin Berg <benjamin@...solutions.net>,
        Brendan Higgins <brendan.higgins@...ux.dev>,
        Shuah Khan <skhan@...uxfoundation.org>,
        Rae Moar <rmoar@...gle.com>,
        Daniel Latypov <dlatypov@...gle.com>
Cc:     oe-kbuild-all@...ts.linux.dev, David Gow <davidgow@...gle.com>,
        maxime@...no.tech, Stephen Boyd <sboyd@...nel.org>,
        kunit-dev@...glegroups.com, linux-kselftest@...r.kernel.org,
        linux-kernel@...r.kernel.org, Sadiya Kazi <sadiyakazi@...gle.com>
Subject: Re: [PATCH v3 1/4] kunit: Always run cleanup from a test kthread

Hi David,

kernel test robot noticed the following build warnings:

[auto build test WARNING on linus/master]
[also build test WARNING on v6.3-rc7 next-20230420]
[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/David-Gow/Documentation-kunit-Note-that-assertions-should-not-be-used-in-cleanup/20230421-120437
patch link:    https://lore.kernel.org/r/20230421040218.2156548-1-davidgow%40google.com
patch subject: [PATCH v3 1/4] kunit: Always run cleanup from a test kthread
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20230421/202304211445.r8UQGW3F-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/e6f2b343739c4656e2090449ad7eac10db57dde9
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review David-Gow/Documentation-kunit-Note-that-assertions-should-not-be-used-in-cleanup/20230421-120437
        git checkout e6f2b343739c4656e2090449ad7eac10db57dde9
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 olddefconfig
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash lib/kunit/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202304211445.r8UQGW3F-lkp@intel.com/

All warnings (new ones prefixed by >>):

   lib/kunit/test.c: In function 'kunit_catch_run_case':
>> lib/kunit/test.c:440:29: warning: unused variable 'suite' [-Wunused-variable]
     440 |         struct kunit_suite *suite = ctx->suite;
         |                             ^~~~~


vim +/suite +440 lib/kunit/test.c

e6f2b343739c46 David Gow       2023-04-21  434  
e6f2b343739c46 David Gow       2023-04-21  435  
5f3e06208920ee Brendan Higgins 2019-09-23  436  static void kunit_catch_run_case(void *data)
5f3e06208920ee Brendan Higgins 2019-09-23  437  {
5f3e06208920ee Brendan Higgins 2019-09-23  438  	struct kunit_try_catch_context *ctx = data;
5f3e06208920ee Brendan Higgins 2019-09-23  439  	struct kunit *test = ctx->test;
5f3e06208920ee Brendan Higgins 2019-09-23 @440  	struct kunit_suite *suite = ctx->suite;
5f3e06208920ee Brendan Higgins 2019-09-23  441  	int try_exit_code = kunit_try_catch_get_result(&test->try_catch);
5f3e06208920ee Brendan Higgins 2019-09-23  442  
5f3e06208920ee Brendan Higgins 2019-09-23  443  	if (try_exit_code) {
5f3e06208920ee Brendan Higgins 2019-09-23  444  		kunit_set_failure(test);
5f3e06208920ee Brendan Higgins 2019-09-23  445  		/*
5f3e06208920ee Brendan Higgins 2019-09-23  446  		 * Test case could not finish, we have no idea what state it is
5f3e06208920ee Brendan Higgins 2019-09-23  447  		 * in, so don't do clean up.
5f3e06208920ee Brendan Higgins 2019-09-23  448  		 */
5f3e06208920ee Brendan Higgins 2019-09-23  449  		if (try_exit_code == -ETIMEDOUT) {
5f3e06208920ee Brendan Higgins 2019-09-23  450  			kunit_err(test, "test case timed out\n");
5f3e06208920ee Brendan Higgins 2019-09-23  451  		/*
5f3e06208920ee Brendan Higgins 2019-09-23  452  		 * Unknown internal error occurred preventing test case from
5f3e06208920ee Brendan Higgins 2019-09-23  453  		 * running, so there is nothing to clean up.
5f3e06208920ee Brendan Higgins 2019-09-23  454  		 */
5f3e06208920ee Brendan Higgins 2019-09-23  455  		} else {
5f3e06208920ee Brendan Higgins 2019-09-23  456  			kunit_err(test, "internal error occurred preventing test case from running: %d\n",
5f3e06208920ee Brendan Higgins 2019-09-23  457  				  try_exit_code);
5f3e06208920ee Brendan Higgins 2019-09-23  458  		}
5f3e06208920ee Brendan Higgins 2019-09-23  459  		return;
5f3e06208920ee Brendan Higgins 2019-09-23  460  	}
5f3e06208920ee Brendan Higgins 2019-09-23  461  }
5f3e06208920ee Brendan Higgins 2019-09-23  462  

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

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