Hi Steven, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on rostedt-trace/for-next] [also build test WARNING on wireless-next/main wireless/main linus/master v5.19-rc5 next-20220705] [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] url: https://github.com/intel-lab-lkp/linux/commits/Steven-Rostedt/tracing-events-Add-__vstring-and-__assign_vstr-helpers/20220706-065125 base: https://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git for-next config: i386-allyesconfig compiler: gcc-11 (Debian 11.3.0-3) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/3c932e272fbef5f880bf07599554747106044b06 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Steven-Rostedt/tracing-events-Add-__vstring-and-__assign_vstr-helpers/20220706-065125 git checkout 3c932e272fbef5f880bf07599554747106044b06 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/net/wireless/broadcom/brcm80211/brcmfmac/ drivers/net/wireless/broadcom/brcm80211/brcmsmac/ drivers/net/wireless/intel/iwlwifi/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot All warnings (new ones prefixed by >>): In file included from include/trace/define_trace.h:102, from drivers/net/wireless/broadcom/brcm80211/brcmfmac/tracepoint.h:133, from drivers/net/wireless/broadcom/brcm80211/brcmfmac/tracepoint.c:12: drivers/net/wireless/broadcom/brcm80211/brcmfmac/./tracepoint.h: In function 'trace_event_get_offsets_brcmf_err': >> include/trace/trace_events.h:261:16: warning: function 'trace_event_get_offsets_brcmf_err' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 261 | struct trace_event_raw_##call __maybe_unused *entry; \ | ^~~~~~~~~~~~~~~~ include/trace/trace_events.h:40:9: note: in expansion of macro 'DECLARE_EVENT_CLASS' 40 | DECLARE_EVENT_CLASS(name, \ | ^~~~~~~~~~~~~~~~~~~ drivers/net/wireless/broadcom/brcm80211/brcmfmac/./tracepoint.h:31:1: note: in expansion of macro 'TRACE_EVENT' 31 | TRACE_EVENT(brcmf_err, | ^~~~~~~~~~~ drivers/net/wireless/broadcom/brcm80211/brcmfmac/./tracepoint.h: In function 'trace_event_get_offsets_brcmf_dbg': >> include/trace/trace_events.h:261:16: warning: function 'trace_event_get_offsets_brcmf_dbg' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 261 | struct trace_event_raw_##call __maybe_unused *entry; \ | ^~~~~~~~~~~~~~~~ include/trace/trace_events.h:40:9: note: in expansion of macro 'DECLARE_EVENT_CLASS' 40 | DECLARE_EVENT_CLASS(name, \ | ^~~~~~~~~~~~~~~~~~~ drivers/net/wireless/broadcom/brcm80211/brcmfmac/./tracepoint.h:45:1: note: in expansion of macro 'TRACE_EVENT' 45 | TRACE_EVENT(brcmf_dbg, | ^~~~~~~~~~~ In file included from include/trace/define_trace.h:102, from drivers/net/wireless/broadcom/brcm80211/brcmfmac/tracepoint.h:133, from drivers/net/wireless/broadcom/brcm80211/brcmfmac/tracepoint.c:12: drivers/net/wireless/broadcom/brcm80211/brcmfmac/./tracepoint.h: In function 'trace_event_raw_event_brcmf_err': include/trace/trace_events.h:386:16: warning: function 'trace_event_raw_event_brcmf_err' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 386 | struct trace_event_raw_##call *entry; \ | ^~~~~~~~~~~~~~~~ include/trace/trace_events.h:40:9: note: in expansion of macro 'DECLARE_EVENT_CLASS' 40 | DECLARE_EVENT_CLASS(name, \ | ^~~~~~~~~~~~~~~~~~~ drivers/net/wireless/broadcom/brcm80211/brcmfmac/./tracepoint.h:31:1: note: in expansion of macro 'TRACE_EVENT' 31 | TRACE_EVENT(brcmf_err, | ^~~~~~~~~~~ drivers/net/wireless/broadcom/brcm80211/brcmfmac/./tracepoint.h: In function 'trace_event_raw_event_brcmf_dbg': include/trace/trace_events.h:386:16: warning: function 'trace_event_raw_event_brcmf_dbg' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 386 | struct trace_event_raw_##call *entry; \ | ^~~~~~~~~~~~~~~~ include/trace/trace_events.h:40:9: note: in expansion of macro 'DECLARE_EVENT_CLASS' 40 | DECLARE_EVENT_CLASS(name, \ | ^~~~~~~~~~~~~~~~~~~ drivers/net/wireless/broadcom/brcm80211/brcmfmac/./tracepoint.h:45:1: note: in expansion of macro 'TRACE_EVENT' 45 | TRACE_EVENT(brcmf_dbg, | ^~~~~~~~~~~ In file included from include/trace/define_trace.h:103, from drivers/net/wireless/broadcom/brcm80211/brcmfmac/tracepoint.h:133, from drivers/net/wireless/broadcom/brcm80211/brcmfmac/tracepoint.c:12: drivers/net/wireless/broadcom/brcm80211/brcmfmac/./tracepoint.h: In function 'perf_trace_brcmf_err': include/trace/perf.h:64:16: warning: function 'perf_trace_brcmf_err' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 64 | struct hlist_head *head; \ | ^~~~~~~~~~ include/trace/trace_events.h:40:9: note: in expansion of macro 'DECLARE_EVENT_CLASS' 40 | DECLARE_EVENT_CLASS(name, \ | ^~~~~~~~~~~~~~~~~~~ drivers/net/wireless/broadcom/brcm80211/brcmfmac/./tracepoint.h:31:1: note: in expansion of macro 'TRACE_EVENT' 31 | TRACE_EVENT(brcmf_err, | ^~~~~~~~~~~ drivers/net/wireless/broadcom/brcm80211/brcmfmac/./tracepoint.h: In function 'perf_trace_brcmf_dbg': include/trace/perf.h:64:16: warning: function 'perf_trace_brcmf_dbg' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 64 | struct hlist_head *head; \ | ^~~~~~~~~~ include/trace/trace_events.h:40:9: note: in expansion of macro 'DECLARE_EVENT_CLASS' 40 | DECLARE_EVENT_CLASS(name, \ | ^~~~~~~~~~~~~~~~~~~ drivers/net/wireless/broadcom/brcm80211/brcmfmac/./tracepoint.h:45:1: note: in expansion of macro 'TRACE_EVENT' 45 | TRACE_EVENT(brcmf_dbg, | ^~~~~~~~~~~ -- In file included from include/trace/define_trace.h:102, from drivers/net/wireless/broadcom/brcm80211/brcmsmac/brcms_trace_brcmsmac_msg.h:82, from drivers/net/wireless/broadcom/brcm80211/brcmsmac/brcms_trace_events.h:38, from drivers/net/wireless/broadcom/brcm80211/brcmsmac/brcms_trace_events.c:22: drivers/net/wireless/broadcom/brcm80211/brcmsmac/./brcms_trace_brcmsmac_msg.h: In function 'trace_event_get_offsets_brcms_dbg': >> include/trace/trace_events.h:261:16: warning: function 'trace_event_get_offsets_brcms_dbg' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 261 | struct trace_event_raw_##call __maybe_unused *entry; \ | ^~~~~~~~~~~~~~~~ include/trace/trace_events.h:40:9: note: in expansion of macro 'DECLARE_EVENT_CLASS' 40 | DECLARE_EVENT_CLASS(name, \ | ^~~~~~~~~~~~~~~~~~~ drivers/net/wireless/broadcom/brcm80211/brcmsmac/./brcms_trace_brcmsmac_msg.h:59:1: note: in expansion of macro 'TRACE_EVENT' 59 | TRACE_EVENT(brcms_dbg, | ^~~~~~~~~~~ In file included from include/trace/define_trace.h:102, from drivers/net/wireless/broadcom/brcm80211/brcmsmac/brcms_trace_brcmsmac_msg.h:82, from drivers/net/wireless/broadcom/brcm80211/brcmsmac/brcms_trace_events.h:38, from drivers/net/wireless/broadcom/brcm80211/brcmsmac/brcms_trace_events.c:22: drivers/net/wireless/broadcom/brcm80211/brcmsmac/./brcms_trace_brcmsmac_msg.h: In function 'trace_event_raw_event_brcms_dbg': include/trace/trace_events.h:386:16: warning: function 'trace_event_raw_event_brcms_dbg' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 386 | struct trace_event_raw_##call *entry; \ | ^~~~~~~~~~~~~~~~ include/trace/trace_events.h:40:9: note: in expansion of macro 'DECLARE_EVENT_CLASS' 40 | DECLARE_EVENT_CLASS(name, \ | ^~~~~~~~~~~~~~~~~~~ drivers/net/wireless/broadcom/brcm80211/brcmsmac/./brcms_trace_brcmsmac_msg.h:59:1: note: in expansion of macro 'TRACE_EVENT' 59 | TRACE_EVENT(brcms_dbg, | ^~~~~~~~~~~ In file included from include/trace/define_trace.h:103, from drivers/net/wireless/broadcom/brcm80211/brcmsmac/brcms_trace_brcmsmac_msg.h:82, from drivers/net/wireless/broadcom/brcm80211/brcmsmac/brcms_trace_events.h:38, from drivers/net/wireless/broadcom/brcm80211/brcmsmac/brcms_trace_events.c:22: drivers/net/wireless/broadcom/brcm80211/brcmsmac/./brcms_trace_brcmsmac_msg.h: In function 'perf_trace_brcms_dbg': include/trace/perf.h:64:16: warning: function 'perf_trace_brcms_dbg' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 64 | struct hlist_head *head; \ | ^~~~~~~~~~ include/trace/trace_events.h:40:9: note: in expansion of macro 'DECLARE_EVENT_CLASS' 40 | DECLARE_EVENT_CLASS(name, \ | ^~~~~~~~~~~~~~~~~~~ drivers/net/wireless/broadcom/brcm80211/brcmsmac/./brcms_trace_brcmsmac_msg.h:59:1: note: in expansion of macro 'TRACE_EVENT' 59 | TRACE_EVENT(brcms_dbg, | ^~~~~~~~~~~ vim +261 include/trace/trace_events.h 55de2c0b5610cb include/trace/trace_events.h Masami Hiramatsu 2021-11-22 253 091ad3658e3c76 include/trace/ftrace.h Ingo Molnar 2009-11-26 254 #undef DECLARE_EVENT_CLASS 091ad3658e3c76 include/trace/ftrace.h Ingo Molnar 2009-11-26 255 #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \ d0ee8f4a1f5f3d include/trace/trace_events.h Steven Rostedt (Red Hat 2015-05-13 256) static inline notrace int trace_event_get_offsets_##call( \ 62323a148fbeb0 include/trace/trace_events.h Steven Rostedt (Red Hat 2015-05-13 257) struct trace_event_data_offsets_##call *__data_offsets, proto) \ 7fcb7c472f455d include/trace/ftrace.h Li Zefan 2009-06-01 258 { \ 7fcb7c472f455d include/trace/ftrace.h Li Zefan 2009-06-01 259 int __data_size = 0; \ 114e7b52dee69c include/trace/ftrace.h Filipe Brandenburger 2014-02-28 260 int __maybe_unused __item_length; \ a7237765730a10 include/trace/trace_events.h Steven Rostedt (Red Hat 2015-05-13 @261) struct trace_event_raw_##call __maybe_unused *entry; \ 7fcb7c472f455d include/trace/ftrace.h Li Zefan 2009-06-01 262 \ 7fcb7c472f455d include/trace/ftrace.h Li Zefan 2009-06-01 263 tstruct; \ 7fcb7c472f455d include/trace/ftrace.h Li Zefan 2009-06-01 264 \ 7fcb7c472f455d include/trace/ftrace.h Li Zefan 2009-06-01 265 return __data_size; \ 7fcb7c472f455d include/trace/ftrace.h Li Zefan 2009-06-01 266 } 7fcb7c472f455d include/trace/ftrace.h Li Zefan 2009-06-01 267 -- 0-DAY CI Kernel Test Service https://01.org/lkp