Hi Steven, kernel test robot noticed the following build warnings:
[auto build test WARNING on trace/for-next] [also build test WARNING on linus/master v7.2-rc6 next-20260804] [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/Steven-Rostedt/tracing-Cleanup-event_enable_trigger_parse-by-using-__free/20260805-073956 base: https://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace for-next patch link: https://lore.kernel.org/r/20260701174829.67ab8a33%40gandalf.local.home patch subject: [PATCH] tracing: Cleanup event_enable_trigger_parse() by using __free() config: s390-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20260805/[email protected]/config) compiler: s390x-linux-gnu-gcc (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260805/[email protected]/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 <[email protected]> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ All warnings (new ones prefixed by >>): In file included from ./include/linux/file.h:13, from ./include/linux/kernel_read_file.h:5, from ./include/linux/security.h:26, from kernel/trace/trace_events_trigger.c:8: kernel/trace/trace_events_trigger.c: In function 'event_enable_trigger_parse': >> ./include/linux/cleanup.h:228:22: warning: ignoring return value of >> '__must_check_fn' declared with attribute 'warn_unused_result' >> [-Wunused-result] 228 | ((typeof(p)) __must_check_fn((__force const volatile void *)__get_and_null(p, NULL))) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/trace/trace_events_trigger.c:1842:9: note: in expansion of macro 'no_free_ptr' 1842 | no_free_ptr(enable_data); | ^~~~~~~~~~~ vim +228 ./include/linux/cleanup.h 85be6d84244706 Peter Zijlstra 2023-08-15 226 54da6a0924311c Peter Zijlstra 2023-05-26 227 #define no_free_ptr(p) \ 366fef794bd2b7 Ilpo Järvinen 2025-03-10 @228 ((typeof(p)) __must_check_fn((__force const volatile void *)__get_and_null(p, NULL))) 54da6a0924311c Peter Zijlstra 2023-05-26 229 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
