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Date:   Sat, 4 Nov 2023 17:58:26 +0800
From:   kernel test robot <lkp@intel.com>
To:     Zhang Xiaoxu <zhangxiaoxu@huaweicloud.com>,
        zhangxiaoxu5@huawei.com, weiyongjun1@huawei.com,
        broonie@kernel.org, rostedt@goodmis.org, mingo@redhat.com,
        frowand.list@gmail.com, linux-spi@vger.kernel.org,
        linux-kernel@vger.kernel.org
Cc:     oe-kbuild-all@lists.linux.dev
Subject: Re: [PATCH v3 -next 2/5] spi: mockup: Add writeable tracepoint for
 spi transfer
Message-ID: <202311041721.m13CvbG0-lkp@intel.com>
References: <20231104064650.972687-3-zhangxiaoxu@huaweicloud.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20231104064650.972687-3-zhangxiaoxu@huaweicloud.com>
Precedence: bulk

Hi Zhang,

kernel test robot noticed the following build warnings:

[auto build test WARNING on next-20231103]

url:    https://github.com/intel-lab-lkp/linux/commits/Zhang-Xiaoxu/spi-mockup-Add-SPI-controller-testing-driver/20231104-144859
base:   next-20231103
patch link:    https://lore.kernel.org/r/20231104064650.972687-3-zhangxiaoxu%40huaweicloud.com
patch subject: [PATCH v3 -next 2/5] spi: mockup: Add writeable tracepoint for spi transfer
config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20231104/202311041721.m13CvbG0-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231104/202311041721.m13CvbG0-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311041721.m13CvbG0-lkp@intel.com/

All warnings (new ones prefixed by >>):

    2221 |                 rcu_assign_pointer(event->tp_event->prog_array, new_array);
         |                                         ^~
   include/asm-generic/rwonce.h:55:27: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                           ^
   include/asm-generic/barrier.h:198:9: note: in expansion of macro 'WRITE_ONCE'
     198 |         WRITE_ONCE(*p, v);                                              \
         |         ^~~~~~~~~~
   include/linux/rcupdate.h:500:17: note: in expansion of macro 'smp_store_release'
     500 |                 smp_store_release(&p, RCU_INITIALIZER((typeof(p))_r_a_p__v)); \
         |                 ^~~~~~~~~~~~~~~~~
   kernel/trace/bpf_trace.c:2221:17: note: in expansion of macro 'rcu_assign_pointer'
    2221 |                 rcu_assign_pointer(event->tp_event->prog_array, new_array);
         |                 ^~~~~~~~~~~~~~~~~~
   kernel/trace/bpf_trace.c:2221:41: error: 'struct perf_event' has no member named 'tp_event'
    2221 |                 rcu_assign_pointer(event->tp_event->prog_array, new_array);
         |                                         ^~
   include/asm-generic/rwonce.h:55:34: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                                  ^
   include/asm-generic/barrier.h:198:9: note: in expansion of macro 'WRITE_ONCE'
     198 |         WRITE_ONCE(*p, v);                                              \
         |         ^~~~~~~~~~
   include/linux/rcupdate.h:500:17: note: in expansion of macro 'smp_store_release'
     500 |                 smp_store_release(&p, RCU_INITIALIZER((typeof(p))_r_a_p__v)); \
         |                 ^~~~~~~~~~~~~~~~~
   kernel/trace/bpf_trace.c:2221:17: note: in expansion of macro 'rcu_assign_pointer'
    2221 |                 rcu_assign_pointer(event->tp_event->prog_array, new_array);
         |                 ^~~~~~~~~~~~~~~~~~
   kernel/trace/bpf_trace.c:2221:41: error: 'struct perf_event' has no member named 'tp_event'
    2221 |                 rcu_assign_pointer(event->tp_event->prog_array, new_array);
         |                                         ^~
   include/asm-generic/rwonce.h:55:40: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                                        ^~~
   include/asm-generic/barrier.h:198:9: note: in expansion of macro 'WRITE_ONCE'
     198 |         WRITE_ONCE(*p, v);                                              \
         |         ^~~~~~~~~~
   include/linux/rcupdate.h:500:17: note: in expansion of macro 'smp_store_release'
     500 |                 smp_store_release(&p, RCU_INITIALIZER((typeof(p))_r_a_p__v)); \
         |                 ^~~~~~~~~~~~~~~~~
   include/linux/rcupdate.h:500:39: note: in expansion of macro 'RCU_INITIALIZER'
     500 |                 smp_store_release(&p, RCU_INITIALIZER((typeof(p))_r_a_p__v)); \
         |                                       ^~~~~~~~~~~~~~~
   kernel/trace/bpf_trace.c:2221:17: note: in expansion of macro 'rcu_assign_pointer'
    2221 |                 rcu_assign_pointer(event->tp_event->prog_array, new_array);
         |                 ^~~~~~~~~~~~~~~~~~
   kernel/trace/bpf_trace.c:2221:41: error: 'struct perf_event' has no member named 'tp_event'
    2221 |                 rcu_assign_pointer(event->tp_event->prog_array, new_array);
         |                                         ^~
   include/asm-generic/rwonce.h:55:40: note: in definition of macro '__WRITE_ONCE'
      55 |         *(volatile typeof(x) *)&(x) = (val);                            \
         |                                        ^~~
   include/asm-generic/barrier.h:198:9: note: in expansion of macro 'WRITE_ONCE'
     198 |         WRITE_ONCE(*p, v);                                              \
         |         ^~~~~~~~~~
   include/linux/rcupdate.h:500:17: note: in expansion of macro 'smp_store_release'
     500 |                 smp_store_release(&p, RCU_INITIALIZER((typeof(p))_r_a_p__v)); \
         |                 ^~~~~~~~~~~~~~~~~
   include/linux/rcupdate.h:500:39: note: in expansion of macro 'RCU_INITIALIZER'
     500 |                 smp_store_release(&p, RCU_INITIALIZER((typeof(p))_r_a_p__v)); \
         |                                       ^~~~~~~~~~~~~~~
   kernel/trace/bpf_trace.c:2221:17: note: in expansion of macro 'rcu_assign_pointer'
    2221 |                 rcu_assign_pointer(event->tp_event->prog_array, new_array);
         |                 ^~~~~~~~~~~~~~~~~~
   kernel/trace/bpf_trace.c:2225:27: error: 'struct perf_event' has no member named 'prog'
    2225 |         bpf_prog_put(event->prog);
         |                           ^~
   kernel/trace/bpf_trace.c:2226:14: error: 'struct perf_event' has no member named 'prog'
    2226 |         event->prog = NULL;
         |              ^~
   kernel/trace/bpf_trace.c: In function 'perf_event_query_prog_array':
   kernel/trace/bpf_trace.c:2242:18: error: 'struct perf_event' has no member named 'attr'
    2242 |         if (event->attr.type != PERF_TYPE_TRACEPOINT)
         |                  ^~
   kernel/trace/bpf_trace.c:2261:48: error: 'struct perf_event' has no member named 'tp_event'
    2261 |         progs = bpf_event_rcu_dereference(event->tp_event->prog_array);
         |                                                ^~
   include/linux/rcupdate.h:445:19: note: in definition of macro '__rcu_dereference_protected'
     445 |         ((typeof(*p) __force __kernel *)(p)); \
         |                   ^
   kernel/trace/bpf_trace.c:42:9: note: in expansion of macro 'rcu_dereference_protected'
      42 |         rcu_dereference_protected(p, lockdep_is_held(&bpf_event_mutex))
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~
   kernel/trace/bpf_trace.c:2261:17: note: in expansion of macro 'bpf_event_rcu_dereference'
    2261 |         progs = bpf_event_rcu_dereference(event->tp_event->prog_array);
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~~
   kernel/trace/bpf_trace.c:2261:48: error: 'struct perf_event' has no member named 'tp_event'
    2261 |         progs = bpf_event_rcu_dereference(event->tp_event->prog_array);
         |                                                ^~
   include/linux/rcupdate.h:445:42: note: in definition of macro '__rcu_dereference_protected'
     445 |         ((typeof(*p) __force __kernel *)(p)); \
         |                                          ^
   kernel/trace/bpf_trace.c:42:9: note: in expansion of macro 'rcu_dereference_protected'
      42 |         rcu_dereference_protected(p, lockdep_is_held(&bpf_event_mutex))
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~
   kernel/trace/bpf_trace.c:2261:17: note: in expansion of macro 'bpf_event_rcu_dereference'
    2261 |         progs = bpf_event_rcu_dereference(event->tp_event->prog_array);
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~~
   kernel/trace/bpf_trace.c: At top level:
>> kernel/trace/bpf_trace.c:2337:14: warning: no previous prototype for 'bpf_trace_run1' [-Wmissing-prototypes]
    2337 |         void bpf_trace_run##x(struct bpf_prog *prog,                    \
         |              ^~~~~~~~~~~~~
   kernel/trace/bpf_trace.c:2345:1: note: in expansion of macro 'BPF_TRACE_DEFN_x'
    2345 | BPF_TRACE_DEFN_x(1);
         | ^~~~~~~~~~~~~~~~
>> kernel/trace/bpf_trace.c:2337:14: warning: no previous prototype for 'bpf_trace_run2' [-Wmissing-prototypes]
    2337 |         void bpf_trace_run##x(struct bpf_prog *prog,                    \
         |              ^~~~~~~~~~~~~
   kernel/trace/bpf_trace.c:2346:1: note: in expansion of macro 'BPF_TRACE_DEFN_x'
    2346 | BPF_TRACE_DEFN_x(2);
         | ^~~~~~~~~~~~~~~~
>> kernel/trace/bpf_trace.c:2337:14: warning: no previous prototype for 'bpf_trace_run3' [-Wmissing-prototypes]
    2337 |         void bpf_trace_run##x(struct bpf_prog *prog,                    \
         |              ^~~~~~~~~~~~~
   kernel/trace/bpf_trace.c:2347:1: note: in expansion of macro 'BPF_TRACE_DEFN_x'
    2347 | BPF_TRACE_DEFN_x(3);
         | ^~~~~~~~~~~~~~~~
>> kernel/trace/bpf_trace.c:2337:14: warning: no previous prototype for 'bpf_trace_run4' [-Wmissing-prototypes]
    2337 |         void bpf_trace_run##x(struct bpf_prog *prog,                    \
         |              ^~~~~~~~~~~~~
   kernel/trace/bpf_trace.c:2348:1: note: in expansion of macro 'BPF_TRACE_DEFN_x'
    2348 | BPF_TRACE_DEFN_x(4);
         | ^~~~~~~~~~~~~~~~
>> kernel/trace/bpf_trace.c:2337:14: warning: no previous prototype for 'bpf_trace_run5' [-Wmissing-prototypes]
    2337 |         void bpf_trace_run##x(struct bpf_prog *prog,                    \
         |              ^~~~~~~~~~~~~
   kernel/trace/bpf_trace.c:2349:1: note: in expansion of macro 'BPF_TRACE_DEFN_x'
    2349 | BPF_TRACE_DEFN_x(5);
         | ^~~~~~~~~~~~~~~~
>> kernel/trace/bpf_trace.c:2337:14: warning: no previous prototype for 'bpf_trace_run6' [-Wmissing-prototypes]
    2337 |         void bpf_trace_run##x(struct bpf_prog *prog,                    \
         |              ^~~~~~~~~~~~~
   kernel/trace/bpf_trace.c:2350:1: note: in expansion of macro 'BPF_TRACE_DEFN_x'
    2350 | BPF_TRACE_DEFN_x(6);
         | ^~~~~~~~~~~~~~~~
>> kernel/trace/bpf_trace.c:2337:14: warning: no previous prototype for 'bpf_trace_run7' [-Wmissing-prototypes]
    2337 |         void bpf_trace_run##x(struct bpf_prog *prog,                    \
         |              ^~~~~~~~~~~~~
   kernel/trace/bpf_trace.c:2351:1: note: in expansion of macro 'BPF_TRACE_DEFN_x'
    2351 | BPF_TRACE_DEFN_x(7);
         | ^~~~~~~~~~~~~~~~
>> kernel/trace/bpf_trace.c:2337:14: warning: no previous prototype for 'bpf_trace_run8' [-Wmissing-prototypes]
    2337 |         void bpf_trace_run##x(struct bpf_prog *prog,                    \
         |              ^~~~~~~~~~~~~
   kernel/trace/bpf_trace.c:2352:1: note: in expansion of macro 'BPF_TRACE_DEFN_x'
    2352 | BPF_TRACE_DEFN_x(8);
         | ^~~~~~~~~~~~~~~~
>> kernel/trace/bpf_trace.c:2337:14: warning: no previous prototype for 'bpf_trace_run9' [-Wmissing-prototypes]
    2337 |         void bpf_trace_run##x(struct bpf_prog *prog,                    \
         |              ^~~~~~~~~~~~~
   kernel/trace/bpf_trace.c:2353:1: note: in expansion of macro 'BPF_TRACE_DEFN_x'
    2353 | BPF_TRACE_DEFN_x(9);
         | ^~~~~~~~~~~~~~~~
>> kernel/trace/bpf_trace.c:2337:14: warning: no previous prototype for 'bpf_trace_run10' [-Wmissing-prototypes]
    2337 |         void bpf_trace_run##x(struct bpf_prog *prog,                    \
         |              ^~~~~~~~~~~~~
   kernel/trace/bpf_trace.c:2354:1: note: in expansion of macro 'BPF_TRACE_DEFN_x'
    2354 | BPF_TRACE_DEFN_x(10);
         | ^~~~~~~~~~~~~~~~
>> kernel/trace/bpf_trace.c:2337:14: warning: no previous prototype for 'bpf_trace_run11' [-Wmissing-prototypes]
    2337 |         void bpf_trace_run##x(struct bpf_prog *prog,                    \
         |              ^~~~~~~~~~~~~
   kernel/trace/bpf_trace.c:2355:1: note: in expansion of macro 'BPF_TRACE_DEFN_x'
    2355 | BPF_TRACE_DEFN_x(11);
         | ^~~~~~~~~~~~~~~~
>> kernel/trace/bpf_trace.c:2337:14: warning: no previous prototype for 'bpf_trace_run12' [-Wmissing-prototypes]
    2337 |         void bpf_trace_run##x(struct bpf_prog *prog,                    \
         |              ^~~~~~~~~~~~~
   kernel/trace/bpf_trace.c:2356:1: note: in expansion of macro 'BPF_TRACE_DEFN_x'
    2356 | BPF_TRACE_DEFN_x(12);
         | ^~~~~~~~~~~~~~~~
   kernel/trace/bpf_trace.c: In function 'bpf_get_perf_event_info':
   kernel/trace/bpf_trace.c:2395:21: error: 'const struct perf_event' has no member named 'prog'
    2395 |         prog = event->prog;
         |                     ^~
   kernel/trace/bpf_trace.c:2404:22: error: 'const struct perf_event' has no member named 'tp_event'
    2404 |         flags = event->tp_event->flags;
         |                      ^~
   kernel/trace/bpf_trace.c:2406:53: error: 'const struct perf_event' has no member named 'tp_event'
    2406 |         is_syscall_tp = is_syscall_trace_event(event->tp_event);
         |                                                     ^~
   kernel/trace/bpf_trace.c:2409:45: error: 'const struct perf_event' has no member named 'tp_event'
    2409 |                 *buf = is_tracepoint ? event->tp_event->tp->name
         |                                             ^~
   kernel/trace/bpf_trace.c:2410:45: error: 'const struct perf_event' has no member named 'tp_event'
    2410 |                                      : event->tp_event->name;
         |                                             ^~
   kernel/trace/bpf_trace.c: In function '____bpf_get_attach_cookie_pe':
>> kernel/trace/bpf_trace.c:1155:1: warning: control reaches end of non-void function [-Wreturn-type]
    1155 | }
         | ^
   cc1: some warnings being treated as errors

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for BPF_EVENTS
   Depends on [n]: FTRACE [=n] && BPF_SYSCALL [=y] && (KPROBE_EVENTS [=n] || UPROBE_EVENTS [=n]) && PERF_EVENTS [=n]
   Selected by [y]:
   - SPI_MOCKUP [=y] && SPI [=y] && SPI_MASTER [=y] && OF [=y]


vim +/bpf_trace_run1 +2337 kernel/trace/bpf_trace.c

c4f6699dfcb855 Alexei Starovoitov 2018-03-28  2335  
c4f6699dfcb855 Alexei Starovoitov 2018-03-28  2336  #define BPF_TRACE_DEFN_x(x)						\
c4f6699dfcb855 Alexei Starovoitov 2018-03-28 @2337  	void bpf_trace_run##x(struct bpf_prog *prog,			\
c4f6699dfcb855 Alexei Starovoitov 2018-03-28  2338  			      REPEAT(x, SARG, __DL_COM, __SEQ_0_11))	\
c4f6699dfcb855 Alexei Starovoitov 2018-03-28  2339  	{								\
c4f6699dfcb855 Alexei Starovoitov 2018-03-28  2340  		u64 args[x];						\
c4f6699dfcb855 Alexei Starovoitov 2018-03-28  2341  		REPEAT(x, COPY, __DL_SEM, __SEQ_0_11);			\
c4f6699dfcb855 Alexei Starovoitov 2018-03-28  2342  		__bpf_trace_run(prog, args);				\
c4f6699dfcb855 Alexei Starovoitov 2018-03-28  2343  	}								\
c4f6699dfcb855 Alexei Starovoitov 2018-03-28  2344  	EXPORT_SYMBOL_GPL(bpf_trace_run##x)
c4f6699dfcb855 Alexei Starovoitov 2018-03-28  2345  BPF_TRACE_DEFN_x(1);
c4f6699dfcb855 Alexei Starovoitov 2018-03-28  2346  BPF_TRACE_DEFN_x(2);
c4f6699dfcb855 Alexei Starovoitov 2018-03-28  2347  BPF_TRACE_DEFN_x(3);
c4f6699dfcb855 Alexei Starovoitov 2018-03-28  2348  BPF_TRACE_DEFN_x(4);
c4f6699dfcb855 Alexei Starovoitov 2018-03-28  2349  BPF_TRACE_DEFN_x(5);
c4f6699dfcb855 Alexei Starovoitov 2018-03-28  2350  BPF_TRACE_DEFN_x(6);
c4f6699dfcb855 Alexei Starovoitov 2018-03-28  2351  BPF_TRACE_DEFN_x(7);
c4f6699dfcb855 Alexei Starovoitov 2018-03-28  2352  BPF_TRACE_DEFN_x(8);
c4f6699dfcb855 Alexei Starovoitov 2018-03-28  2353  BPF_TRACE_DEFN_x(9);
c4f6699dfcb855 Alexei Starovoitov 2018-03-28  2354  BPF_TRACE_DEFN_x(10);
c4f6699dfcb855 Alexei Starovoitov 2018-03-28  2355  BPF_TRACE_DEFN_x(11);
c4f6699dfcb855 Alexei Starovoitov 2018-03-28  2356  BPF_TRACE_DEFN_x(12);
c4f6699dfcb855 Alexei Starovoitov 2018-03-28  2357  

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