Re: [PATCH v2] tracing: fix CFI violation in probestub test
From: Google
Date: Tue Jun 02 2026 - 21:23:04 EST
On Tue, 2 Jun 2026 23:40:51 +0200
kernel test robot <lkp@xxxxxxxxx> wrote:
> Hi Eva,
>
> kernel test robot noticed the following build errors:
>
> [auto build test ERROR on trace/for-next]
> [also build test ERROR on linus/master v6.16-rc1 next-20260602]
> [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/Eva-Kurchatova/tracing-fix-CFI-violation-in-probestub-test/20260602-222302
> base: https://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace for-next
> patch link: https://lore.kernel.org/r/20260602135425.542073-1-eva.kurchatova%40virtuozzo.com
> patch subject: [PATCH v2] tracing: fix CFI violation in probestub test
> config: x86_64-rhel-9.4-kselftests (https://download.01.org/0day-ci/archive/20260602/202606022312.7cKiQBmg-lkp@xxxxxxxxx/config)
> compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260602/202606022312.7cKiQBmg-lkp@xxxxxxxxx/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@xxxxxxxxx>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202606022312.7cKiQBmg-lkp@xxxxxxxxx/
>
> All errors (new ones prefixed by >>):
>
> In file included from drivers/dma-buf/sync_trace.h:10,
> from drivers/dma-buf/sw_sync.c:18:
> include/linux/tracepoint.h:403:9: warning: data definition has no type or storage class
> 403 | CFI_NOSEAL(__probestub_##_name); \
> | ^~~~~~~~~~
Hmm, it seems that this macro is not defined in this build
configuration? Maybe we need:
#include <linux/cfi.h>
instead of asm/cfi.h?
Thanks,
> include/linux/tracepoint.h:424:9: note: in expansion of macro '__DEFINE_TRACE_EXT'
> 424 | __DEFINE_TRACE_EXT(_name, NULL, PARAMS(_proto), PARAMS(_args));
> | ^~~~~~~~~~~~~~~~~~
> include/trace/define_trace.h:28:9: note: in expansion of macro 'DEFINE_TRACE'
> 28 | DEFINE_TRACE(name, PARAMS(proto), PARAMS(args))
> | ^~~~~~~~~~~~
> include/trace/../../drivers/dma-buf/sync_trace.h:12:1: note: in expansion of macro 'TRACE_EVENT'
> 12 | TRACE_EVENT(sync_timeline,
> | ^~~~~~~~~~~
> include/linux/tracepoint.h:403:9: error: type defaults to 'int' in declaration of 'CFI_NOSEAL' [-Wimplicit-int]
> 403 | CFI_NOSEAL(__probestub_##_name); \
> | ^~~~~~~~~~
> include/linux/tracepoint.h:424:9: note: in expansion of macro '__DEFINE_TRACE_EXT'
> 424 | __DEFINE_TRACE_EXT(_name, NULL, PARAMS(_proto), PARAMS(_args));
> | ^~~~~~~~~~~~~~~~~~
> include/trace/define_trace.h:28:9: note: in expansion of macro 'DEFINE_TRACE'
> 28 | DEFINE_TRACE(name, PARAMS(proto), PARAMS(args))
> | ^~~~~~~~~~~~
> include/trace/../../drivers/dma-buf/sync_trace.h:12:1: note: in expansion of macro 'TRACE_EVENT'
> 12 | TRACE_EVENT(sync_timeline,
> | ^~~~~~~~~~~
> >> include/trace/../../drivers/dma-buf/sync_trace.h:13:25: error: parameter names (without types) in function declaration [-Wdeclaration-missing-parameter-type]
> 13 | TP_PROTO(struct sync_timeline *timeline),
> | ^~~~~~~~~~~~~
> include/linux/tracepoint.h:394:48: note: in definition of macro '__DEFINE_TRACE_EXT'
> 394 | void __probestub_##_name(void *__data, proto) \
> | ^~~~~
> include/linux/tracepoint.h:424:41: note: in expansion of macro 'PARAMS'
> 424 | __DEFINE_TRACE_EXT(_name, NULL, PARAMS(_proto), PARAMS(_args));
> | ^~~~~~
> include/trace/define_trace.h:28:9: note: in expansion of macro 'DEFINE_TRACE'
> 28 | DEFINE_TRACE(name, PARAMS(proto), PARAMS(args))
> | ^~~~~~~~~~~~
> include/trace/define_trace.h:28:28: note: in expansion of macro 'PARAMS'
> 28 | DEFINE_TRACE(name, PARAMS(proto), PARAMS(args))
> | ^~~~~~
> include/trace/../../drivers/dma-buf/sync_trace.h:12:1: note: in expansion of macro 'TRACE_EVENT'
> 12 | TRACE_EVENT(sync_timeline,
> | ^~~~~~~~~~~
> include/trace/../../drivers/dma-buf/sync_trace.h:13:9: note: in expansion of macro 'TP_PROTO'
> 13 | TP_PROTO(struct sync_timeline *timeline),
> | ^~~~~~~~
> --
> In file included from include/trace/events/lock.h:9,
> from kernel/locking/mutex.c:35:
> include/linux/tracepoint.h:403:9: warning: data definition has no type or storage class
> 403 | CFI_NOSEAL(__probestub_##_name); \
> | ^~~~~~~~~~
> include/linux/tracepoint.h:424:9: note: in expansion of macro '__DEFINE_TRACE_EXT'
> 424 | __DEFINE_TRACE_EXT(_name, NULL, PARAMS(_proto), PARAMS(_args));
> | ^~~~~~~~~~~~~~~~~~
> include/trace/define_trace.h:28:9: note: in expansion of macro 'DEFINE_TRACE'
> 28 | DEFINE_TRACE(name, PARAMS(proto), PARAMS(args))
> | ^~~~~~~~~~~~
> include/trace/events/lock.h:24:1: note: in expansion of macro 'TRACE_EVENT'
> 24 | TRACE_EVENT(lock_acquire,
> | ^~~~~~~~~~~
> include/linux/tracepoint.h:403:9: error: type defaults to 'int' in declaration of 'CFI_NOSEAL' [-Wimplicit-int]
> 403 | CFI_NOSEAL(__probestub_##_name); \
> | ^~~~~~~~~~
> include/linux/tracepoint.h:424:9: note: in expansion of macro '__DEFINE_TRACE_EXT'
> 424 | __DEFINE_TRACE_EXT(_name, NULL, PARAMS(_proto), PARAMS(_args));
> | ^~~~~~~~~~~~~~~~~~
> include/trace/define_trace.h:28:9: note: in expansion of macro 'DEFINE_TRACE'
> 28 | DEFINE_TRACE(name, PARAMS(proto), PARAMS(args))
> | ^~~~~~~~~~~~
> include/trace/events/lock.h:24:1: note: in expansion of macro 'TRACE_EVENT'
> 24 | TRACE_EVENT(lock_acquire,
> | ^~~~~~~~~~~
> >> include/trace/events/lock.h:28:24: error: parameter names (without types) in function declaration [-Wdeclaration-missing-parameter-type]
> 28 | struct lockdep_map *next_lock, unsigned long ip),
> | ^~~~~~~~~~~
> include/linux/tracepoint.h:394:48: note: in definition of macro '__DEFINE_TRACE_EXT'
> 394 | void __probestub_##_name(void *__data, proto) \
> | ^~~~~
> include/linux/tracepoint.h:424:41: note: in expansion of macro 'PARAMS'
> 424 | __DEFINE_TRACE_EXT(_name, NULL, PARAMS(_proto), PARAMS(_args));
> | ^~~~~~
> include/trace/define_trace.h:28:9: note: in expansion of macro 'DEFINE_TRACE'
> 28 | DEFINE_TRACE(name, PARAMS(proto), PARAMS(args))
> | ^~~~~~~~~~~~
> include/trace/define_trace.h:28:28: note: in expansion of macro 'PARAMS'
> 28 | DEFINE_TRACE(name, PARAMS(proto), PARAMS(args))
> | ^~~~~~
> include/trace/events/lock.h:24:1: note: in expansion of macro 'TRACE_EVENT'
> 24 | TRACE_EVENT(lock_acquire,
> | ^~~~~~~~~~~
> include/trace/events/lock.h:26:9: note: in expansion of macro 'TP_PROTO'
> 26 | TP_PROTO(struct lockdep_map *lock, unsigned int subclass,
> | ^~~~~~~~
> include/linux/tracepoint.h:403:9: warning: data definition has no type or storage class
> 403 | CFI_NOSEAL(__probestub_##_name); \
> | ^~~~~~~~~~
> include/linux/tracepoint.h:424:9: note: in expansion of macro '__DEFINE_TRACE_EXT'
> 424 | __DEFINE_TRACE_EXT(_name, NULL, PARAMS(_proto), PARAMS(_args));
> | ^~~~~~~~~~~~~~~~~~
> include/trace/define_trace.h:61:9: note: in expansion of macro 'DEFINE_TRACE'
> 61 | DEFINE_TRACE(name, PARAMS(proto), PARAMS(args))
> | ^~~~~~~~~~~~
> include/trace/events/lock.h:69:1: note: in expansion of macro 'DEFINE_EVENT'
> 69 | DEFINE_EVENT(lock, lock_release,
> | ^~~~~~~~~~~~
> include/linux/tracepoint.h:403:9: error: type defaults to 'int' in declaration of 'CFI_NOSEAL' [-Wimplicit-int]
> 403 | CFI_NOSEAL(__probestub_##_name); \
> | ^~~~~~~~~~
> include/linux/tracepoint.h:424:9: note: in expansion of macro '__DEFINE_TRACE_EXT'
> 424 | __DEFINE_TRACE_EXT(_name, NULL, PARAMS(_proto), PARAMS(_args));
> | ^~~~~~~~~~~~~~~~~~
> include/trace/define_trace.h:61:9: note: in expansion of macro 'DEFINE_TRACE'
> 61 | DEFINE_TRACE(name, PARAMS(proto), PARAMS(args))
> | ^~~~~~~~~~~~
> include/trace/events/lock.h:69:1: note: in expansion of macro 'DEFINE_EVENT'
> 69 | DEFINE_EVENT(lock, lock_release,
> | ^~~~~~~~~~~~
> include/trace/events/lock.h:71:25: error: parameter names (without types) in function declaration [-Wdeclaration-missing-parameter-type]
> 71 | TP_PROTO(struct lockdep_map *lock, unsigned long ip),
> | ^~~~~~~~~~~
> include/linux/tracepoint.h:394:48: note: in definition of macro '__DEFINE_TRACE_EXT'
> 394 | void __probestub_##_name(void *__data, proto) \
> | ^~~~~
> include/linux/tracepoint.h:424:41: note: in expansion of macro 'PARAMS'
> 424 | __DEFINE_TRACE_EXT(_name, NULL, PARAMS(_proto), PARAMS(_args));
> | ^~~~~~
> include/trace/define_trace.h:61:9: note: in expansion of macro 'DEFINE_TRACE'
> 61 | DEFINE_TRACE(name, PARAMS(proto), PARAMS(args))
> | ^~~~~~~~~~~~
> include/trace/define_trace.h:61:28: note: in expansion of macro 'PARAMS'
> 61 | DEFINE_TRACE(name, PARAMS(proto), PARAMS(args))
> | ^~~~~~
> include/trace/events/lock.h:69:1: note: in expansion of macro 'DEFINE_EVENT'
> 69 | DEFINE_EVENT(lock, lock_release,
> | ^~~~~~~~~~~~
> include/trace/events/lock.h:71:9: note: in expansion of macro 'TP_PROTO'
> 71 | TP_PROTO(struct lockdep_map *lock, unsigned long ip),
> | ^~~~~~~~
> include/linux/tracepoint.h:403:9: warning: data definition has no type or storage class
> 403 | CFI_NOSEAL(__probestub_##_name); \
> | ^~~~~~~~~~
> include/linux/tracepoint.h:424:9: note: in expansion of macro '__DEFINE_TRACE_EXT'
> 424 | __DEFINE_TRACE_EXT(_name, NULL, PARAMS(_proto), PARAMS(_args));
> | ^~~~~~~~~~~~~~~~~~
> include/trace/define_trace.h:28:9: note: in expansion of macro 'DEFINE_TRACE'
> 28 | DEFINE_TRACE(name, PARAMS(proto), PARAMS(args))
> | ^~~~~~~~~~~~
> include/trace/events/lock.h:95:1: note: in expansion of macro 'TRACE_EVENT'
> 95 | TRACE_EVENT(contention_begin,
> | ^~~~~~~~~~~
> include/linux/tracepoint.h:403:9: error: type defaults to 'int' in declaration of 'CFI_NOSEAL' [-Wimplicit-int]
> 403 | CFI_NOSEAL(__probestub_##_name); \
> | ^~~~~~~~~~
> include/linux/tracepoint.h:424:9: note: in expansion of macro '__DEFINE_TRACE_EXT'
> 424 | __DEFINE_TRACE_EXT(_name, NULL, PARAMS(_proto), PARAMS(_args));
> | ^~~~~~~~~~~~~~~~~~
> include/trace/define_trace.h:28:9: note: in expansion of macro 'DEFINE_TRACE'
> 28 | DEFINE_TRACE(name, PARAMS(proto), PARAMS(args))
> | ^~~~~~~~~~~~
> include/trace/events/lock.h:95:1: note: in expansion of macro 'TRACE_EVENT'
> 95 | TRACE_EVENT(contention_begin,
> | ^~~~~~~~~~~
> include/linux/tracepoint.h:380:24: error: parameter names (without types) in function declaration [-Wdeclaration-missing-parameter-type]
> 380 | struct tracepoint_func *it_func_ptr; \
> | ^~~~~~~~~~~~~~~
> include/linux/tracepoint.h:424:9: note: in expansion of macro '__DEFINE_TRACE_EXT'
> 424 | __DEFINE_TRACE_EXT(_name, NULL, PARAMS(_proto), PARAMS(_args));
> | ^~~~~~~~~~~~~~~~~~
> include/trace/define_trace.h:28:9: note: in expansion of macro 'DEFINE_TRACE'
> 28 | DEFINE_TRACE(name, PARAMS(proto), PARAMS(args))
> | ^~~~~~~~~~~~
> include/trace/events/lock.h:95:1: note: in expansion of macro 'TRACE_EVENT'
> 95 | TRACE_EVENT(contention_begin,
>
>
> vim +13 include/trace/../../drivers/dma-buf/sync_trace.h
>
> b699a644f82110e drivers/staging/android/trace/sync.h Erik Gilling 2013-02-28 11
> b699a644f82110e drivers/staging/android/trace/sync.h Erik Gilling 2013-02-28 12 TRACE_EVENT(sync_timeline,
> b699a644f82110e drivers/staging/android/trace/sync.h Erik Gilling 2013-02-28 @13 TP_PROTO(struct sync_timeline *timeline),
> b699a644f82110e drivers/staging/android/trace/sync.h Erik Gilling 2013-02-28 14
> b699a644f82110e drivers/staging/android/trace/sync.h Erik Gilling 2013-02-28 15 TP_ARGS(timeline),
> b699a644f82110e drivers/staging/android/trace/sync.h Erik Gilling 2013-02-28 16
> b699a644f82110e drivers/staging/android/trace/sync.h Erik Gilling 2013-02-28 17 TP_STRUCT__entry(
> b699a644f82110e drivers/staging/android/trace/sync.h Erik Gilling 2013-02-28 18 __string(name, timeline->name)
> 5c1401f83a16b7e drivers/staging/android/trace/sync.h Gustavo Padovan 2016-05-31 19 __field(u32, value)
> b699a644f82110e drivers/staging/android/trace/sync.h Erik Gilling 2013-02-28 20 ),
> b699a644f82110e drivers/staging/android/trace/sync.h Erik Gilling 2013-02-28 21
> b699a644f82110e drivers/staging/android/trace/sync.h Erik Gilling 2013-02-28 22 TP_fast_assign(
> 2c92ca849fcc6ee drivers/dma-buf/sync_trace.h Steven Rostedt (Google 2024-05-16 23) __assign_str(name);
> 5c1401f83a16b7e drivers/staging/android/trace/sync.h Gustavo Padovan 2016-05-31 24 __entry->value = timeline->value;
> b699a644f82110e drivers/staging/android/trace/sync.h Erik Gilling 2013-02-28 25 ),
> b699a644f82110e drivers/staging/android/trace/sync.h Erik Gilling 2013-02-28 26
> 5c1401f83a16b7e drivers/staging/android/trace/sync.h Gustavo Padovan 2016-05-31 27 TP_printk("name=%s value=%d", __get_str(name), __entry->value)
> b699a644f82110e drivers/staging/android/trace/sync.h Erik Gilling 2013-02-28 28 );
> b699a644f82110e drivers/staging/android/trace/sync.h Erik Gilling 2013-02-28 29
>
> --
> 0-DAY CI Kernel Test Service
> https://github.com/intel/lkp-tests/wiki
--
Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>