Re: [PATCH] perf/core: introduced stub APIs for exported APIs

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* Re: [PATCH] perf/core: introduced stub APIs for exported APIs
       [not found] <20230305053934.9948-1-bhardwajmanish18@gmail.com>
@ 2023-03-05  7:36 ` kernel test robot
  2023-03-05  7:36 ` kernel test robot
  2023-03-05  7:57 ` kernel test robot
  2 siblings, 0 replies; 4+ messages in thread
From: kernel test robot @ 2023-03-05  7:36 UTC (permalink / raw)
  To: Manish Bhardwaj
  Cc: oe-kbuild-all, Manish Bhardwaj, Ingo Molnar,
	Arnaldo Carvalho de Melo, Mark Rutland, Alexander Shishkin,
	Jiri Olsa, Namhyung Kim, Ian Rogers, linux-perf-users,
	linux-kernel

Hi Manish,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on tip/perf/core]
[also build test ERROR on acme/perf/core tip/master tip/auto-latest linus/master v6.2 next-20230303]
[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/Manish-Bhardwaj/perf-core-introduced-stub-APIs-for-exported-APIs/20230305-134024
patch link:    https://lore.kernel.org/r/20230305053934.9948-1-bhardwajmanish18%40gmail.com
patch subject: [PATCH] perf/core: introduced stub APIs for exported APIs
config: powerpc-allnoconfig (https://download.01.org/0day-ci/archive/20230305/202303051529.2PHyXSBM-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/2636181e6d3f39c8485077cb15927f84f00a617c
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Manish-Bhardwaj/perf-core-introduced-stub-APIs-for-exported-APIs/20230305-134024
        git checkout 2636181e6d3f39c8485077cb15927f84f00a617c
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash arch/powerpc/kernel/ fs/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303051529.2PHyXSBM-lkp@intel.com/

All error/warnings (new ones prefixed by >>):

   In file included from include/linux/trace_events.h:10,
                    from include/trace/syscall.h:7,
                    from include/linux/syscalls.h:88,
                    from fs/open.c:27:
>> include/linux/perf_event.h:1702:13: warning: no previous prototype for 'perf_pmu_unregister' [-Wmissing-prototypes]
    1702 | extern void perf_pmu_unregister(struct pmu *pmu)                                        { }
         |             ^~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1713:16: warning: 'perf_event_sysfs_show' defined but not used [-Wunused-function]
    1713 | static ssize_t perf_event_sysfs_show(struct device *dev, struct device_attribute *attr,
         |                ^~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1712:13: warning: 'perf_pmu_migrate_context' defined but not used [-Wunused-function]
    1712 | static void perf_pmu_migrate_context(struct pmu *pmu, int src_cpu, int dst_cpu)         { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1704:1: warning: 'perf_event_create_kernel_counter' defined but not used [-Wunused-function]
    1704 | perf_event_create_kernel_counter(struct perf_event_attr *attr,
         | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1698:12: warning: 'perf_pmu_register' defined but not used [-Wunused-function]
    1698 | static int perf_pmu_register(struct pmu *pmu, const char *name, int type)
         |            ^~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1692:13: warning: 'perf_tp_event' defined but not used [-Wunused-function]
    1692 | static void perf_tp_event(u16 event_type, u64 count, void *record,
         |             ^~~~~~~~~~~~~
   include/linux/perf_event.h:1691:13: warning: 'perf_report_aux_output_id' defined but not used [-Wunused-function]
    1691 | static void perf_report_aux_output_id(struct perf_event *event, u64 hw_id)              { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1690:13: warning: 'perf_unregister_guest_info_callbacks' defined but not used [-Wunused-function]
    1690 | static void perf_unregister_guest_info_callbacks(struct perf_guest_info_callbacks *cbs) { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1689:13: warning: 'perf_register_guest_info_callbacks' defined but not used [-Wunused-function]
    1689 | static void perf_register_guest_info_callbacks(struct perf_guest_info_callbacks *cbs)   { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1688:13: warning: 'perf_event_update_userpage' defined but not used [-Wunused-function]
    1688 | static void perf_event_update_userpage(struct perf_event *event)                        { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1683:12: warning: 'perf_event_read_value' defined but not used [-Wunused-function]
    1683 | static u64 perf_event_read_value(struct perf_event *event,
         |            ^~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1682:13: warning: 'perf_event_addr_filters_sync' defined but not used [-Wunused-function]
    1682 | static void perf_event_addr_filters_sync(struct perf_event *event)              { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
--
   In file included from include/linux/trace_events.h:10,
                    from include/trace/syscall.h:7,
                    from include/linux/syscalls.h:88,
                    from fs/pipe.c:24:
>> include/linux/perf_event.h:1702:13: warning: no previous prototype for 'perf_pmu_unregister' [-Wmissing-prototypes]
    1702 | extern void perf_pmu_unregister(struct pmu *pmu)                                        { }
         |             ^~~~~~~~~~~~~~~~~~~
   fs/pipe.c:757:15: warning: no previous prototype for 'account_pipe_buffers' [-Wmissing-prototypes]
     757 | unsigned long account_pipe_buffers(struct user_struct *user,
         |               ^~~~~~~~~~~~~~~~~~~~
   fs/pipe.c:763:6: warning: no previous prototype for 'too_many_pipe_buffers_soft' [-Wmissing-prototypes]
     763 | bool too_many_pipe_buffers_soft(unsigned long user_bufs)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~
   fs/pipe.c:770:6: warning: no previous prototype for 'too_many_pipe_buffers_hard' [-Wmissing-prototypes]
     770 | bool too_many_pipe_buffers_hard(unsigned long user_bufs)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~
   fs/pipe.c:777:6: warning: no previous prototype for 'pipe_is_unprivileged_user' [-Wmissing-prototypes]
     777 | bool pipe_is_unprivileged_user(void)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~
   fs/pipe.c:1253:5: warning: no previous prototype for 'pipe_resize_ring' [-Wmissing-prototypes]
    1253 | int pipe_resize_ring(struct pipe_inode_info *pipe, unsigned int nr_slots)
         |     ^~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1713:16: warning: 'perf_event_sysfs_show' defined but not used [-Wunused-function]
    1713 | static ssize_t perf_event_sysfs_show(struct device *dev, struct device_attribute *attr,
         |                ^~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1712:13: warning: 'perf_pmu_migrate_context' defined but not used [-Wunused-function]
    1712 | static void perf_pmu_migrate_context(struct pmu *pmu, int src_cpu, int dst_cpu)         { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1704:1: warning: 'perf_event_create_kernel_counter' defined but not used [-Wunused-function]
    1704 | perf_event_create_kernel_counter(struct perf_event_attr *attr,
         | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1698:12: warning: 'perf_pmu_register' defined but not used [-Wunused-function]
    1698 | static int perf_pmu_register(struct pmu *pmu, const char *name, int type)
         |            ^~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1692:13: warning: 'perf_tp_event' defined but not used [-Wunused-function]
    1692 | static void perf_tp_event(u16 event_type, u64 count, void *record,
         |             ^~~~~~~~~~~~~
   include/linux/perf_event.h:1691:13: warning: 'perf_report_aux_output_id' defined but not used [-Wunused-function]
    1691 | static void perf_report_aux_output_id(struct perf_event *event, u64 hw_id)              { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1690:13: warning: 'perf_unregister_guest_info_callbacks' defined but not used [-Wunused-function]
    1690 | static void perf_unregister_guest_info_callbacks(struct perf_guest_info_callbacks *cbs) { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1689:13: warning: 'perf_register_guest_info_callbacks' defined but not used [-Wunused-function]
    1689 | static void perf_register_guest_info_callbacks(struct perf_guest_info_callbacks *cbs)   { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1688:13: warning: 'perf_event_update_userpage' defined but not used [-Wunused-function]
    1688 | static void perf_event_update_userpage(struct perf_event *event)                        { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1683:12: warning: 'perf_event_read_value' defined but not used [-Wunused-function]
    1683 | static u64 perf_event_read_value(struct perf_event *event,
         |            ^~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1682:13: warning: 'perf_event_addr_filters_sync' defined but not used [-Wunused-function]
    1682 | static void perf_event_addr_filters_sync(struct perf_event *event)              { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
--
   In file included from include/linux/trace_events.h:10,
                    from include/trace/syscall.h:7,
                    from include/linux/syscalls.h:88,
                    from fs/d_path.c:2:
>> include/linux/perf_event.h:1702:13: warning: no previous prototype for 'perf_pmu_unregister' [-Wmissing-prototypes]
    1702 | extern void perf_pmu_unregister(struct pmu *pmu)                                        { }
         |             ^~~~~~~~~~~~~~~~~~~
   fs/d_path.c:317:7: warning: no previous prototype for 'simple_dname' [-Wmissing-prototypes]
     317 | char *simple_dname(struct dentry *dentry, char *buffer, int buflen)
         |       ^~~~~~~~~~~~
   include/linux/perf_event.h:1713:16: warning: 'perf_event_sysfs_show' defined but not used [-Wunused-function]
    1713 | static ssize_t perf_event_sysfs_show(struct device *dev, struct device_attribute *attr,
         |                ^~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1712:13: warning: 'perf_pmu_migrate_context' defined but not used [-Wunused-function]
    1712 | static void perf_pmu_migrate_context(struct pmu *pmu, int src_cpu, int dst_cpu)         { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1704:1: warning: 'perf_event_create_kernel_counter' defined but not used [-Wunused-function]
    1704 | perf_event_create_kernel_counter(struct perf_event_attr *attr,
         | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1698:12: warning: 'perf_pmu_register' defined but not used [-Wunused-function]
    1698 | static int perf_pmu_register(struct pmu *pmu, const char *name, int type)
         |            ^~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1692:13: warning: 'perf_tp_event' defined but not used [-Wunused-function]
    1692 | static void perf_tp_event(u16 event_type, u64 count, void *record,
         |             ^~~~~~~~~~~~~
   include/linux/perf_event.h:1691:13: warning: 'perf_report_aux_output_id' defined but not used [-Wunused-function]
    1691 | static void perf_report_aux_output_id(struct perf_event *event, u64 hw_id)              { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1690:13: warning: 'perf_unregister_guest_info_callbacks' defined but not used [-Wunused-function]
    1690 | static void perf_unregister_guest_info_callbacks(struct perf_guest_info_callbacks *cbs) { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1689:13: warning: 'perf_register_guest_info_callbacks' defined but not used [-Wunused-function]
    1689 | static void perf_register_guest_info_callbacks(struct perf_guest_info_callbacks *cbs)   { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1688:13: warning: 'perf_event_update_userpage' defined but not used [-Wunused-function]
    1688 | static void perf_event_update_userpage(struct perf_event *event)                        { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1683:12: warning: 'perf_event_read_value' defined but not used [-Wunused-function]
    1683 | static u64 perf_event_read_value(struct perf_event *event,
         |            ^~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1682:13: warning: 'perf_event_addr_filters_sync' defined but not used [-Wunused-function]
    1682 | static void perf_event_addr_filters_sync(struct perf_event *event)              { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
--
   In file included from include/linux/trace_events.h:10,
                    from include/trace/syscall.h:7,
                    from include/linux/syscalls.h:88,
                    from arch/powerpc/kernel/syscalls.c:19:
>> include/linux/perf_event.h:1702:13: error: no previous prototype for 'perf_pmu_unregister' [-Werror=missing-prototypes]
    1702 | extern void perf_pmu_unregister(struct pmu *pmu)                                        { }
         |             ^~~~~~~~~~~~~~~~~~~
>> include/linux/perf_event.h:1713:16: error: 'perf_event_sysfs_show' defined but not used [-Werror=unused-function]
    1713 | static ssize_t perf_event_sysfs_show(struct device *dev, struct device_attribute *attr,
         |                ^~~~~~~~~~~~~~~~~~~~~
>> include/linux/perf_event.h:1712:13: error: 'perf_pmu_migrate_context' defined but not used [-Werror=unused-function]
    1712 | static void perf_pmu_migrate_context(struct pmu *pmu, int src_cpu, int dst_cpu)         { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~
>> include/linux/perf_event.h:1704:1: error: 'perf_event_create_kernel_counter' defined but not used [-Werror=unused-function]
    1704 | perf_event_create_kernel_counter(struct perf_event_attr *attr,
         | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> include/linux/perf_event.h:1698:12: error: 'perf_pmu_register' defined but not used [-Werror=unused-function]
    1698 | static int perf_pmu_register(struct pmu *pmu, const char *name, int type)
         |            ^~~~~~~~~~~~~~~~~
>> include/linux/perf_event.h:1692:13: error: 'perf_tp_event' defined but not used [-Werror=unused-function]
    1692 | static void perf_tp_event(u16 event_type, u64 count, void *record,
         |             ^~~~~~~~~~~~~
>> include/linux/perf_event.h:1691:13: error: 'perf_report_aux_output_id' defined but not used [-Werror=unused-function]
    1691 | static void perf_report_aux_output_id(struct perf_event *event, u64 hw_id)              { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~
>> include/linux/perf_event.h:1690:13: error: 'perf_unregister_guest_info_callbacks' defined but not used [-Werror=unused-function]
    1690 | static void perf_unregister_guest_info_callbacks(struct perf_guest_info_callbacks *cbs) { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> include/linux/perf_event.h:1689:13: error: 'perf_register_guest_info_callbacks' defined but not used [-Werror=unused-function]
    1689 | static void perf_register_guest_info_callbacks(struct perf_guest_info_callbacks *cbs)   { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> include/linux/perf_event.h:1688:13: error: 'perf_event_update_userpage' defined but not used [-Werror=unused-function]
    1688 | static void perf_event_update_userpage(struct perf_event *event)                        { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
>> include/linux/perf_event.h:1683:12: error: 'perf_event_read_value' defined but not used [-Werror=unused-function]
    1683 | static u64 perf_event_read_value(struct perf_event *event,
         |            ^~~~~~~~~~~~~~~~~~~~~
>> include/linux/perf_event.h:1682:13: error: 'perf_event_addr_filters_sync' defined but not used [-Werror=unused-function]
    1682 | static void perf_event_addr_filters_sync(struct perf_event *event)              { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors

vim +/perf_pmu_unregister +1702 include/linux/perf_event.h

  1649	
  1650	extern int perf_output_begin(struct perf_output_handle *handle,
  1651				     struct perf_sample_data *data,
  1652				     struct perf_event *event, unsigned int size);
  1653	extern int perf_output_begin_forward(struct perf_output_handle *handle,
  1654					     struct perf_sample_data *data,
  1655					     struct perf_event *event,
  1656					     unsigned int size);
  1657	extern int perf_output_begin_backward(struct perf_output_handle *handle,
  1658					      struct perf_sample_data *data,
  1659					      struct perf_event *event,
  1660					      unsigned int size);
  1661	
  1662	extern void perf_output_end(struct perf_output_handle *handle);
  1663	extern unsigned int perf_output_copy(struct perf_output_handle *handle,
  1664				     const void *buf, unsigned int len);
  1665	extern unsigned int perf_output_skip(struct perf_output_handle *handle,
  1666					     unsigned int len);
  1667	extern long perf_output_copy_aux(struct perf_output_handle *aux_handle,
  1668					 struct perf_output_handle *handle,
  1669					 unsigned long from, unsigned long to);
  1670	extern int perf_swevent_get_recursion_context(void);
  1671	extern void perf_swevent_put_recursion_context(int rctx);
  1672	extern u64 perf_swevent_set_period(struct perf_event *event);
  1673	extern void perf_event_enable(struct perf_event *event);
  1674	extern void perf_event_disable(struct perf_event *event);
  1675	extern void perf_event_disable_local(struct perf_event *event);
  1676	extern void perf_event_disable_inatomic(struct perf_event *event);
  1677	extern void perf_event_task_tick(void);
  1678	extern int perf_event_account_interrupt(struct perf_event *event);
  1679	extern int perf_event_period(struct perf_event *event, u64 value);
  1680	extern u64 perf_event_pause(struct perf_event *event, bool reset);
  1681	#else /* !CONFIG_PERF_EVENTS: */
> 1682	static void perf_event_addr_filters_sync(struct perf_event *event)		{ }
> 1683	static u64 perf_event_read_value(struct perf_event *event,
  1684					 u64 *enabled, u64 *running)
  1685	{
  1686		return 0;
  1687	}
> 1688	static void perf_event_update_userpage(struct perf_event *event)			{ }
> 1689	static void perf_register_guest_info_callbacks(struct perf_guest_info_callbacks *cbs)	{ }
> 1690	static void perf_unregister_guest_info_callbacks(struct perf_guest_info_callbacks *cbs)	{ }
> 1691	static void perf_report_aux_output_id(struct perf_event *event, u64 hw_id)		{ }
> 1692	static void perf_tp_event(u16 event_type, u64 count, void *record,
  1693				  int entry_size, struct pt_regs *regs,
  1694				  struct hlist_head *head, int rctx,
  1695				  struct task_struct *task)
  1696	{
  1697	}
> 1698	static int perf_pmu_register(struct pmu *pmu, const char *name, int type)
  1699	{
  1700		return -1;
  1701	}
> 1702	extern void perf_pmu_unregister(struct pmu *pmu)					{ }
  1703	static struct perf_event *
> 1704	perf_event_create_kernel_counter(struct perf_event_attr *attr,
  1705					int cpu,
  1706					struct task_struct *task,
  1707					perf_overflow_handler_t callback,
  1708					void *context)
  1709	{
  1710		return NULL;
  1711	}
> 1712	static void perf_pmu_migrate_context(struct pmu *pmu, int src_cpu, int dst_cpu)		{ }
> 1713	static ssize_t perf_event_sysfs_show(struct device *dev, struct device_attribute *attr,
  1714				      char *page)
  1715	{
  1716		return -1;
  1717	}
  1718	static inline void *
  1719	perf_aux_output_begin(struct perf_output_handle *handle,
  1720			      struct perf_event *event)				{ return NULL; }
  1721	static inline void
  1722	perf_aux_output_end(struct perf_output_handle *handle, unsigned long size)
  1723										{ }
  1724	static inline int
  1725	perf_aux_output_skip(struct perf_output_handle *handle,
  1726			     unsigned long size)				{ return -EINVAL; }
  1727	static inline void *
  1728	perf_get_aux(struct perf_output_handle *handle)				{ return NULL; }
  1729	static inline void
  1730	perf_event_task_migrate(struct task_struct *task)			{ }
  1731	static inline void
  1732	perf_event_task_sched_in(struct task_struct *prev,
  1733				 struct task_struct *task)			{ }
  1734	static inline void
  1735	perf_event_task_sched_out(struct task_struct *prev,
  1736				  struct task_struct *next)			{ }
  1737	static inline int perf_event_init_task(struct task_struct *child,
  1738					       u64 clone_flags)			{ return 0; }
  1739	static inline void perf_event_exit_task(struct task_struct *child)	{ }
  1740	static inline void perf_event_free_task(struct task_struct *task)	{ }
  1741	static inline void perf_event_delayed_put(struct task_struct *task)	{ }
  1742	static inline struct file *perf_event_get(unsigned int fd)	{ return ERR_PTR(-EINVAL); }
  1743	static inline const struct perf_event *perf_get_event(struct file *file)
  1744	{
  1745		return ERR_PTR(-EINVAL);
  1746	}
  1747	static inline const struct perf_event_attr *perf_event_attrs(struct perf_event *event)
  1748	{
  1749		return ERR_PTR(-EINVAL);
  1750	}
  1751	static inline int perf_event_read_local(struct perf_event *event, u64 *value,
  1752						u64 *enabled, u64 *running)
  1753	{
  1754		return -EINVAL;
  1755	}
  1756	static inline void perf_event_print_debug(void)				{ }
  1757	static inline int perf_event_task_disable(void)				{ return -EINVAL; }
  1758	static inline int perf_event_task_enable(void)				{ return -EINVAL; }
  1759	static inline int perf_event_refresh(struct perf_event *event, int refresh)
  1760	{
  1761		return -EINVAL;
  1762	}
  1763	

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

^ permalink raw reply	[flat|nested] 4+ messages in thread
* Re: [PATCH] perf/core: introduced stub APIs for exported APIs
       [not found] <20230305053934.9948-1-bhardwajmanish18@gmail.com>
  2023-03-05  7:36 ` [PATCH] perf/core: introduced stub APIs for exported APIs kernel test robot
@ 2023-03-05  7:36 ` kernel test robot
  2023-03-05  7:57 ` kernel test robot
  2 siblings, 0 replies; 4+ messages in thread
From: kernel test robot @ 2023-03-05  7:36 UTC (permalink / raw)
  To: Manish Bhardwaj
  Cc: oe-kbuild-all, Manish Bhardwaj, Peter Zijlstra, Ingo Molnar,
	Arnaldo Carvalho de Melo, Mark Rutland, Alexander Shishkin,
	Jiri Olsa, Namhyung Kim, Ian Rogers, linux-perf-users,
	linux-kernel

Hi Manish,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on tip/perf/core]
[also build test ERROR on acme/perf/core tip/master tip/auto-latest linus/master v6.2 next-20230303]
[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/Manish-Bhardwaj/perf-core-introduced-stub-APIs-for-exported-APIs/20230305-134024
patch link:    https://lore.kernel.org/r/20230305053934.9948-1-bhardwajmanish18%40gmail.com
patch subject: [PATCH] perf/core: introduced stub APIs for exported APIs
config: nios2-randconfig-r021-20230305 (https://download.01.org/0day-ci/archive/20230305/202303051558.FF5cjvLT-lkp@intel.com/config)
compiler: nios2-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/2636181e6d3f39c8485077cb15927f84f00a617c
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Manish-Bhardwaj/perf-core-introduced-stub-APIs-for-exported-APIs/20230305-134024
        git checkout 2636181e6d3f39c8485077cb15927f84f00a617c
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=nios2 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=nios2 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303051558.FF5cjvLT-lkp@intel.com/

All errors (new ones prefixed by >>):

   nios2-linux-ld: init/do_mounts.o: in function `perf_pmu_unregister':
>> do_mounts.c:(.text+0x184): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: init/do_mounts_initrd.o: in function `perf_pmu_unregister':
   do_mounts_initrd.c:(.text+0x0): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: init/initramfs.o: in function `perf_pmu_unregister':
   initramfs.c:(.text+0x48): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: arch/nios2/kernel/sys_nios2.o: in function `perf_pmu_unregister':
   sys_nios2.c:(.text+0x0): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: arch/nios2/kernel/syscall_table.o: in function `perf_pmu_unregister':
   syscall_table.c:(.text+0x0): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: arch/nios2/mm/fault.o: in function `perf_pmu_unregister':
   fault.c:(.text+0x0): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/fork.o: in function `perf_pmu_unregister':
   fork.c:(.text+0xa78): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/exec_domain.o: in function `perf_pmu_unregister':
   exec_domain.c:(.text+0x0): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/cpu.o: in function `perf_pmu_unregister':
   cpu.c:(.text+0x584): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/exit.o: in function `perf_pmu_unregister':
   exit.c:(.text+0xf58): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/sysctl.o: in function `perf_pmu_unregister':
   sysctl.c:(.text+0x60): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/capability.o: in function `perf_pmu_unregister':
   capability.c:(.text+0x5dc): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/ptrace.o: in function `perf_pmu_unregister':
   ptrace.c:(.text+0x600): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/signal.o: in function `perf_pmu_unregister':
   signal.c:(.text+0x16bc): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/sys.o: in function `perf_pmu_unregister':
   sys.c:(.text+0x1478): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/umh.o: in function `perf_pmu_unregister':
   umh.c:(.text+0xa08): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/pid.o: in function `perf_pmu_unregister':
   pid.c:(.text+0x5f8): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/nsproxy.o: in function `perf_pmu_unregister':
   nsproxy.c:(.text+0x26c): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/reboot.o: in function `perf_pmu_unregister':
   reboot.c:(.text+0xa74): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/kmod.o: in function `perf_pmu_unregister':
   kmod.c:(.text+0x358): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/groups.o: in function `perf_pmu_unregister':
   groups.c:(.text+0x270): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/sched/core.o: in function `perf_pmu_unregister':
   core.c:(.text+0xc04): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/sched/fair.o: in function `perf_pmu_unregister':
   fair.c:(.text+0x2184): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/sched/build_policy.o: in function `perf_pmu_unregister':
   build_policy.c:(.text+0x3318): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/sched/build_utility.o: in function `perf_pmu_unregister':
   build_utility.c:(.text+0x38a8): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/power/qos.o: in function `perf_pmu_unregister':
   qos.c:(.text+0xe0): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/printk/printk.o: in function `perf_pmu_unregister':
   printk.c:(.text+0xb5c): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/rcu/tree.o: in function `perf_pmu_unregister':
   tree.c:(.text+0x7a00): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/module/main.o: in function `perf_pmu_unregister':
   main.c:(.text+0xeb4): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/kcmp.o: in function `perf_pmu_unregister':
   kcmp.c:(.text+0x570): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/time/time.o: in function `perf_pmu_unregister':
   time.c:(.text+0xc98): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/time/timer.o: in function `perf_pmu_unregister':
   timer.c:(.text+0x1650): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/time/hrtimer.o: in function `perf_pmu_unregister':
   hrtimer.c:(.text+0x13c4): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/time/posix-stubs.o: in function `perf_pmu_unregister':
   posix-stubs.c:(.text+0x0): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/time/tick-common.o: in function `perf_pmu_unregister':
   tick-common.c:(.text+0x1a0): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: kernel/bpf/core.o: in function `perf_pmu_unregister':
   core.c:(.text+0x4c0): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: mm/oom_kill.o: in function `perf_pmu_unregister':
   oom_kill.c:(.text+0x748): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: mm/fadvise.o: in function `perf_pmu_unregister':
   fadvise.c:(.text+0x324): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: mm/page-writeback.o: in function `perf_pmu_unregister':
   page-writeback.c:(.text+0x287c): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: mm/readahead.o: in function `perf_pmu_unregister':
   readahead.c:(.text+0xb6c): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: mm/shmem.o: in function `perf_pmu_unregister':
   shmem.c:(.text+0x5968): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: mm/debug.o: in function `perf_pmu_unregister':
   debug.c:(.text+0x1a8): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: mm/mmap_lock.o: in function `perf_pmu_unregister':
   mmap_lock.c:(.text+0x0): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: mm/memory.o: in function `perf_pmu_unregister':
   memory.c:(.text+0x1130): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: mm/mincore.o: in function `perf_pmu_unregister':
   mincore.c:(.text+0x52c): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: mm/mlock.o: in function `perf_pmu_unregister':
   mlock.c:(.text+0x1c34): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: mm/mmap.o: in function `perf_pmu_unregister':
   mmap.c:(.text+0xa34): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: mm/mprotect.o: in function `perf_pmu_unregister':
   mprotect.c:(.text+0x0): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: mm/mremap.o: in function `perf_pmu_unregister':
   mremap.c:(.text+0x121c): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: mm/msync.o: in function `perf_pmu_unregister':
   msync.c:(.text+0x24c): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here
   nios2-linux-ld: mm/process_vm_access.o: in function `perf_pmu_unregister':
   process_vm_access.c:(.text+0x5b4): multiple definition of `perf_pmu_unregister'; init/main.o:main.c:(.text+0x18): first defined here

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

^ permalink raw reply	[flat|nested] 4+ messages in thread
* Re: [PATCH] perf/core: introduced stub APIs for exported APIs
       [not found] <20230305053934.9948-1-bhardwajmanish18@gmail.com>
  2023-03-05  7:36 ` [PATCH] perf/core: introduced stub APIs for exported APIs kernel test robot
  2023-03-05  7:36 ` kernel test robot
@ 2023-03-05  7:57 ` kernel test robot
  2 siblings, 0 replies; 4+ messages in thread
From: kernel test robot @ 2023-03-05  7:57 UTC (permalink / raw)
  To: Manish Bhardwaj
  Cc: llvm, oe-kbuild-all, Manish Bhardwaj, Ingo Molnar,
	Arnaldo Carvalho de Melo, Mark Rutland, Alexander Shishkin,
	Jiri Olsa, Namhyung Kim, Ian Rogers, linux-perf-users,
	linux-kernel

Hi Manish,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on tip/perf/core]
[also build test WARNING on acme/perf/core tip/master tip/auto-latest linus/master v6.2 next-20230303]
[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/Manish-Bhardwaj/perf-core-introduced-stub-APIs-for-exported-APIs/20230305-134024
patch link:    https://lore.kernel.org/r/20230305053934.9948-1-bhardwajmanish18%40gmail.com
patch subject: [PATCH] perf/core: introduced stub APIs for exported APIs
config: riscv-randconfig-r033-20230305 (https://download.01.org/0day-ci/archive/20230305/202303051534.Ni7GS2vf-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 67409911353323ca5edf2049ef0df54132fa1ca7)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install riscv cross compiling tool for clang build
        # apt-get install binutils-riscv-linux-gnu
        # https://github.com/intel-lab-lkp/linux/commit/2636181e6d3f39c8485077cb15927f84f00a617c
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Manish-Bhardwaj/perf-core-introduced-stub-APIs-for-exported-APIs/20230305-134024
        git checkout 2636181e6d3f39c8485077cb15927f84f00a617c
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash arch/riscv/kernel/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303051534.Ni7GS2vf-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from arch/riscv/kernel/ptrace.c:23:
   In file included from include/trace/events/syscalls.h:73:
   In file included from include/trace/define_trace.h:102:
   In file included from include/trace/trace_events.h:21:
   In file included from include/linux/trace_events.h:10:
>> include/linux/perf_event.h:1702:13: warning: no previous prototype for function 'perf_pmu_unregister' [-Wmissing-prototypes]
   extern void perf_pmu_unregister(struct pmu *pmu)                                        { }
               ^
   include/linux/perf_event.h:1702:8: note: declare 'static' if the function is not intended to be used outside of this translation unit
   extern void perf_pmu_unregister(struct pmu *pmu)                                        { }
          ^
   include/linux/perf_event.h:1682:13: warning: unused function 'perf_event_addr_filters_sync' [-Wunused-function]
   static void perf_event_addr_filters_sync(struct perf_event *event)              { }
               ^
   include/linux/perf_event.h:1683:12: warning: unused function 'perf_event_read_value' [-Wunused-function]
   static u64 perf_event_read_value(struct perf_event *event,
              ^
   include/linux/perf_event.h:1688:13: warning: unused function 'perf_event_update_userpage' [-Wunused-function]
   static void perf_event_update_userpage(struct perf_event *event)                        { }
               ^
   include/linux/perf_event.h:1689:13: warning: unused function 'perf_register_guest_info_callbacks' [-Wunused-function]
   static void perf_register_guest_info_callbacks(struct perf_guest_info_callbacks *cbs)   { }
               ^
   include/linux/perf_event.h:1690:13: warning: unused function 'perf_unregister_guest_info_callbacks' [-Wunused-function]
   static void perf_unregister_guest_info_callbacks(struct perf_guest_info_callbacks *cbs) { }
               ^
   include/linux/perf_event.h:1691:13: warning: unused function 'perf_report_aux_output_id' [-Wunused-function]
   static void perf_report_aux_output_id(struct perf_event *event, u64 hw_id)              { }
               ^
   include/linux/perf_event.h:1692:13: warning: unused function 'perf_tp_event' [-Wunused-function]
   static void perf_tp_event(u16 event_type, u64 count, void *record,
               ^
   include/linux/perf_event.h:1698:12: warning: unused function 'perf_pmu_register' [-Wunused-function]
   static int perf_pmu_register(struct pmu *pmu, const char *name, int type)
              ^
   include/linux/perf_event.h:1704:1: warning: unused function 'perf_event_create_kernel_counter' [-Wunused-function]
   perf_event_create_kernel_counter(struct perf_event_attr *attr,
   ^
   include/linux/perf_event.h:1712:13: warning: unused function 'perf_pmu_migrate_context' [-Wunused-function]
   static void perf_pmu_migrate_context(struct pmu *pmu, int src_cpu, int dst_cpu)         { }
               ^
   include/linux/perf_event.h:1713:16: warning: unused function 'perf_event_sysfs_show' [-Wunused-function]
   static ssize_t perf_event_sysfs_show(struct device *dev, struct device_attribute *attr,
                  ^
   12 warnings generated.
--
   In file included from arch/riscv/kernel/signal.c:12:
   In file included from include/linux/syscalls.h:88:
   In file included from include/trace/syscall.h:7:
   In file included from include/linux/trace_events.h:10:
>> include/linux/perf_event.h:1702:13: warning: no previous prototype for function 'perf_pmu_unregister' [-Wmissing-prototypes]
   extern void perf_pmu_unregister(struct pmu *pmu)                                        { }
               ^
   include/linux/perf_event.h:1702:8: note: declare 'static' if the function is not intended to be used outside of this translation unit
   extern void perf_pmu_unregister(struct pmu *pmu)                                        { }
          ^
   arch/riscv/kernel/signal.c:319:27: warning: no previous prototype for function 'do_work_pending' [-Wmissing-prototypes]
   asmlinkage __visible void do_work_pending(struct pt_regs *regs,
                             ^
   arch/riscv/kernel/signal.c:319:22: note: declare 'static' if the function is not intended to be used outside of this translation unit
   asmlinkage __visible void do_work_pending(struct pt_regs *regs,
                        ^
                        static 
   In file included from arch/riscv/kernel/signal.c:12:
   In file included from include/linux/syscalls.h:88:
   In file included from include/trace/syscall.h:7:
   In file included from include/linux/trace_events.h:10:
   include/linux/perf_event.h:1682:13: warning: unused function 'perf_event_addr_filters_sync' [-Wunused-function]
   static void perf_event_addr_filters_sync(struct perf_event *event)              { }
               ^
   include/linux/perf_event.h:1683:12: warning: unused function 'perf_event_read_value' [-Wunused-function]
   static u64 perf_event_read_value(struct perf_event *event,
              ^
   include/linux/perf_event.h:1688:13: warning: unused function 'perf_event_update_userpage' [-Wunused-function]
   static void perf_event_update_userpage(struct perf_event *event)                        { }
               ^
   include/linux/perf_event.h:1689:13: warning: unused function 'perf_register_guest_info_callbacks' [-Wunused-function]
   static void perf_register_guest_info_callbacks(struct perf_guest_info_callbacks *cbs)   { }
               ^
   include/linux/perf_event.h:1690:13: warning: unused function 'perf_unregister_guest_info_callbacks' [-Wunused-function]
   static void perf_unregister_guest_info_callbacks(struct perf_guest_info_callbacks *cbs) { }
               ^
   include/linux/perf_event.h:1691:13: warning: unused function 'perf_report_aux_output_id' [-Wunused-function]
   static void perf_report_aux_output_id(struct perf_event *event, u64 hw_id)              { }
               ^
   include/linux/perf_event.h:1692:13: warning: unused function 'perf_tp_event' [-Wunused-function]
   static void perf_tp_event(u16 event_type, u64 count, void *record,
               ^
   include/linux/perf_event.h:1698:12: warning: unused function 'perf_pmu_register' [-Wunused-function]
   static int perf_pmu_register(struct pmu *pmu, const char *name, int type)
              ^
   include/linux/perf_event.h:1704:1: warning: unused function 'perf_event_create_kernel_counter' [-Wunused-function]
   perf_event_create_kernel_counter(struct perf_event_attr *attr,
   ^
   include/linux/perf_event.h:1712:13: warning: unused function 'perf_pmu_migrate_context' [-Wunused-function]
   static void perf_pmu_migrate_context(struct pmu *pmu, int src_cpu, int dst_cpu)         { }
               ^
   include/linux/perf_event.h:1713:16: warning: unused function 'perf_event_sysfs_show' [-Wunused-function]
   static ssize_t perf_event_sysfs_show(struct device *dev, struct device_attribute *attr,
                  ^
   13 warnings generated.

vim +/perf_pmu_unregister +1702 include/linux/perf_event.h

  1649	
  1650	extern int perf_output_begin(struct perf_output_handle *handle,
  1651				     struct perf_sample_data *data,
  1652				     struct perf_event *event, unsigned int size);
  1653	extern int perf_output_begin_forward(struct perf_output_handle *handle,
  1654					     struct perf_sample_data *data,
  1655					     struct perf_event *event,
  1656					     unsigned int size);
  1657	extern int perf_output_begin_backward(struct perf_output_handle *handle,
  1658					      struct perf_sample_data *data,
  1659					      struct perf_event *event,
  1660					      unsigned int size);
  1661	
  1662	extern void perf_output_end(struct perf_output_handle *handle);
  1663	extern unsigned int perf_output_copy(struct perf_output_handle *handle,
  1664				     const void *buf, unsigned int len);
  1665	extern unsigned int perf_output_skip(struct perf_output_handle *handle,
  1666					     unsigned int len);
  1667	extern long perf_output_copy_aux(struct perf_output_handle *aux_handle,
  1668					 struct perf_output_handle *handle,
  1669					 unsigned long from, unsigned long to);
  1670	extern int perf_swevent_get_recursion_context(void);
  1671	extern void perf_swevent_put_recursion_context(int rctx);
  1672	extern u64 perf_swevent_set_period(struct perf_event *event);
  1673	extern void perf_event_enable(struct perf_event *event);
  1674	extern void perf_event_disable(struct perf_event *event);
  1675	extern void perf_event_disable_local(struct perf_event *event);
  1676	extern void perf_event_disable_inatomic(struct perf_event *event);
  1677	extern void perf_event_task_tick(void);
  1678	extern int perf_event_account_interrupt(struct perf_event *event);
  1679	extern int perf_event_period(struct perf_event *event, u64 value);
  1680	extern u64 perf_event_pause(struct perf_event *event, bool reset);
  1681	#else /* !CONFIG_PERF_EVENTS: */
  1682	static void perf_event_addr_filters_sync(struct perf_event *event)		{ }
  1683	static u64 perf_event_read_value(struct perf_event *event,
  1684					 u64 *enabled, u64 *running)
  1685	{
  1686		return 0;
  1687	}
  1688	static void perf_event_update_userpage(struct perf_event *event)			{ }
  1689	static void perf_register_guest_info_callbacks(struct perf_guest_info_callbacks *cbs)	{ }
  1690	static void perf_unregister_guest_info_callbacks(struct perf_guest_info_callbacks *cbs)	{ }
  1691	static void perf_report_aux_output_id(struct perf_event *event, u64 hw_id)		{ }
  1692	static void perf_tp_event(u16 event_type, u64 count, void *record,
  1693				  int entry_size, struct pt_regs *regs,
  1694				  struct hlist_head *head, int rctx,
  1695				  struct task_struct *task)
  1696	{
  1697	}
  1698	static int perf_pmu_register(struct pmu *pmu, const char *name, int type)
  1699	{
  1700		return -1;
  1701	}
> 1702	extern void perf_pmu_unregister(struct pmu *pmu)					{ }
  1703	static struct perf_event *
  1704	perf_event_create_kernel_counter(struct perf_event_attr *attr,
  1705					int cpu,
  1706					struct task_struct *task,
  1707					perf_overflow_handler_t callback,
  1708					void *context)
  1709	{
  1710		return NULL;
  1711	}
  1712	static void perf_pmu_migrate_context(struct pmu *pmu, int src_cpu, int dst_cpu)		{ }
  1713	static ssize_t perf_event_sysfs_show(struct device *dev, struct device_attribute *attr,
  1714				      char *page)
  1715	{
  1716		return -1;
  1717	}
  1718	static inline void *
  1719	perf_aux_output_begin(struct perf_output_handle *handle,
  1720			      struct perf_event *event)				{ return NULL; }
  1721	static inline void
  1722	perf_aux_output_end(struct perf_output_handle *handle, unsigned long size)
  1723										{ }
  1724	static inline int
  1725	perf_aux_output_skip(struct perf_output_handle *handle,
  1726			     unsigned long size)				{ return -EINVAL; }
  1727	static inline void *
  1728	perf_get_aux(struct perf_output_handle *handle)				{ return NULL; }
  1729	static inline void
  1730	perf_event_task_migrate(struct task_struct *task)			{ }
  1731	static inline void
  1732	perf_event_task_sched_in(struct task_struct *prev,
  1733				 struct task_struct *task)			{ }
  1734	static inline void
  1735	perf_event_task_sched_out(struct task_struct *prev,
  1736				  struct task_struct *next)			{ }
  1737	static inline int perf_event_init_task(struct task_struct *child,
  1738					       u64 clone_flags)			{ return 0; }
  1739	static inline void perf_event_exit_task(struct task_struct *child)	{ }
  1740	static inline void perf_event_free_task(struct task_struct *task)	{ }
  1741	static inline void perf_event_delayed_put(struct task_struct *task)	{ }
  1742	static inline struct file *perf_event_get(unsigned int fd)	{ return ERR_PTR(-EINVAL); }
  1743	static inline const struct perf_event *perf_get_event(struct file *file)
  1744	{
  1745		return ERR_PTR(-EINVAL);
  1746	}
  1747	static inline const struct perf_event_attr *perf_event_attrs(struct perf_event *event)
  1748	{
  1749		return ERR_PTR(-EINVAL);
  1750	}
  1751	static inline int perf_event_read_local(struct perf_event *event, u64 *value,
  1752						u64 *enabled, u64 *running)
  1753	{
  1754		return -EINVAL;
  1755	}
  1756	static inline void perf_event_print_debug(void)				{ }
  1757	static inline int perf_event_task_disable(void)				{ return -EINVAL; }
  1758	static inline int perf_event_task_enable(void)				{ return -EINVAL; }
  1759	static inline int perf_event_refresh(struct perf_event *event, int refresh)
  1760	{
  1761		return -EINVAL;
  1762	}
  1763	

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

^ permalink raw reply	[flat|nested] 4+ messages in thread
[parent not found: <20230305092759.10754-1-bhardwajmanish18@gmail.com>]
* Re: [PATCH] perf/core: introduced stub APIs for exported APIs
       [not found] <20230305092759.10754-1-bhardwajmanish18@gmail.com>
@ 2023-03-05 10:20 ` kernel test robot
  0 siblings, 0 replies; 4+ messages in thread
From: kernel test robot @ 2023-03-05 10:20 UTC (permalink / raw)
  To: Manish Bhardwaj
  Cc: oe-kbuild-all, acme, alexander.shishkin, irogers, jolsa,
	linux-kernel, linux-perf-users, mark.rutland, mingo, namhyung

Hi Manish,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on b01fe98d34f3bed944a93bd8119fed80c856fad8]

url:    https://github.com/intel-lab-lkp/linux/commits/Manish-Bhardwaj/perf-core-introduced-stub-APIs-for-exported-APIs/20230305-172840
base:   b01fe98d34f3bed944a93bd8119fed80c856fad8
patch link:    https://lore.kernel.org/r/20230305092759.10754-1-bhardwajmanish18%40gmail.com
patch subject: [PATCH] perf/core: introduced stub APIs for exported APIs
config: powerpc-allnoconfig (https://download.01.org/0day-ci/archive/20230305/202303051803.g6sS9VOE-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/abd3574667ce6899f498ffc1be32ade8ac01e4cb
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Manish-Bhardwaj/perf-core-introduced-stub-APIs-for-exported-APIs/20230305-172840
        git checkout abd3574667ce6899f498ffc1be32ade8ac01e4cb
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash arch/powerpc/kernel/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303051803.g6sS9VOE-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from include/linux/trace_events.h:10,
                    from include/trace/syscall.h:7,
                    from include/linux/syscalls.h:88,
                    from arch/powerpc/kernel/syscalls.c:19:
   include/linux/perf_event.h:1713:16: error: 'perf_event_sysfs_show' defined but not used [-Werror=unused-function]
    1713 | static ssize_t perf_event_sysfs_show(struct device *dev, struct device_attribute *attr,
         |                ^~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1712:13: error: 'perf_pmu_migrate_context' defined but not used [-Werror=unused-function]
    1712 | static void perf_pmu_migrate_context(struct pmu *pmu, int src_cpu, int dst_cpu)         { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1704:1: error: 'perf_event_create_kernel_counter' defined but not used [-Werror=unused-function]
    1704 | perf_event_create_kernel_counter(struct perf_event_attr *attr,
         | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> include/linux/perf_event.h:1702:13: error: 'perf_pmu_unregister' defined but not used [-Werror=unused-function]
    1702 | static void perf_pmu_unregister(struct pmu *pmu)                                        { }
         |             ^~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1698:12: error: 'perf_pmu_register' defined but not used [-Werror=unused-function]
    1698 | static int perf_pmu_register(struct pmu *pmu, const char *name, int type)
         |            ^~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1692:13: error: 'perf_tp_event' defined but not used [-Werror=unused-function]
    1692 | static void perf_tp_event(u16 event_type, u64 count, void *record,
         |             ^~~~~~~~~~~~~
   include/linux/perf_event.h:1691:13: error: 'perf_report_aux_output_id' defined but not used [-Werror=unused-function]
    1691 | static void perf_report_aux_output_id(struct perf_event *event, u64 hw_id)              { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1690:13: error: 'perf_unregister_guest_info_callbacks' defined but not used [-Werror=unused-function]
    1690 | static void perf_unregister_guest_info_callbacks(struct perf_guest_info_callbacks *cbs) { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1689:13: error: 'perf_register_guest_info_callbacks' defined but not used [-Werror=unused-function]
    1689 | static void perf_register_guest_info_callbacks(struct perf_guest_info_callbacks *cbs)   { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1688:13: error: 'perf_event_update_userpage' defined but not used [-Werror=unused-function]
    1688 | static void perf_event_update_userpage(struct perf_event *event)                        { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1683:12: error: 'perf_event_read_value' defined but not used [-Werror=unused-function]
    1683 | static u64 perf_event_read_value(struct perf_event *event,
         |            ^~~~~~~~~~~~~~~~~~~~~
   include/linux/perf_event.h:1682:13: error: 'perf_event_addr_filters_sync' defined but not used [-Werror=unused-function]
    1682 | static void perf_event_addr_filters_sync(struct perf_event *event)              { }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors

vim +/perf_pmu_unregister +1702 include/linux/perf_event.h

  1649	
  1650	extern int perf_output_begin(struct perf_output_handle *handle,
  1651				     struct perf_sample_data *data,
  1652				     struct perf_event *event, unsigned int size);
  1653	extern int perf_output_begin_forward(struct perf_output_handle *handle,
  1654					     struct perf_sample_data *data,
  1655					     struct perf_event *event,
  1656					     unsigned int size);
  1657	extern int perf_output_begin_backward(struct perf_output_handle *handle,
  1658					      struct perf_sample_data *data,
  1659					      struct perf_event *event,
  1660					      unsigned int size);
  1661	
  1662	extern void perf_output_end(struct perf_output_handle *handle);
  1663	extern unsigned int perf_output_copy(struct perf_output_handle *handle,
  1664				     const void *buf, unsigned int len);
  1665	extern unsigned int perf_output_skip(struct perf_output_handle *handle,
  1666					     unsigned int len);
  1667	extern long perf_output_copy_aux(struct perf_output_handle *aux_handle,
  1668					 struct perf_output_handle *handle,
  1669					 unsigned long from, unsigned long to);
  1670	extern int perf_swevent_get_recursion_context(void);
  1671	extern void perf_swevent_put_recursion_context(int rctx);
  1672	extern u64 perf_swevent_set_period(struct perf_event *event);
  1673	extern void perf_event_enable(struct perf_event *event);
  1674	extern void perf_event_disable(struct perf_event *event);
  1675	extern void perf_event_disable_local(struct perf_event *event);
  1676	extern void perf_event_disable_inatomic(struct perf_event *event);
  1677	extern void perf_event_task_tick(void);
  1678	extern int perf_event_account_interrupt(struct perf_event *event);
  1679	extern int perf_event_period(struct perf_event *event, u64 value);
  1680	extern u64 perf_event_pause(struct perf_event *event, bool reset);
  1681	#else /* !CONFIG_PERF_EVENTS: */
  1682	static void perf_event_addr_filters_sync(struct perf_event *event)		{ }
  1683	static u64 perf_event_read_value(struct perf_event *event,
  1684					 u64 *enabled, u64 *running)
  1685	{
  1686		return 0;
  1687	}
  1688	static void perf_event_update_userpage(struct perf_event *event)			{ }
  1689	static void perf_register_guest_info_callbacks(struct perf_guest_info_callbacks *cbs)	{ }
  1690	static void perf_unregister_guest_info_callbacks(struct perf_guest_info_callbacks *cbs)	{ }
  1691	static void perf_report_aux_output_id(struct perf_event *event, u64 hw_id)		{ }
  1692	static void perf_tp_event(u16 event_type, u64 count, void *record,
  1693				  int entry_size, struct pt_regs *regs,
  1694				  struct hlist_head *head, int rctx,
  1695				  struct task_struct *task)
  1696	{
  1697	}
  1698	static int perf_pmu_register(struct pmu *pmu, const char *name, int type)
  1699	{
  1700		return -1;
  1701	}
> 1702	static void perf_pmu_unregister(struct pmu *pmu)					{ }
  1703	static struct perf_event *
  1704	perf_event_create_kernel_counter(struct perf_event_attr *attr,
  1705					int cpu,
  1706					struct task_struct *task,
  1707					perf_overflow_handler_t callback,
  1708					void *context)
  1709	{
  1710		return NULL;
  1711	}
  1712	static void perf_pmu_migrate_context(struct pmu *pmu, int src_cpu, int dst_cpu)		{ }
  1713	static ssize_t perf_event_sysfs_show(struct device *dev, struct device_attribute *attr,
  1714				      char *page)
  1715	{
  1716		return -1;
  1717	}
  1718	static inline void *
  1719	perf_aux_output_begin(struct perf_output_handle *handle,
  1720			      struct perf_event *event)				{ return NULL; }
  1721	static inline void
  1722	perf_aux_output_end(struct perf_output_handle *handle, unsigned long size)
  1723										{ }
  1724	static inline int
  1725	perf_aux_output_skip(struct perf_output_handle *handle,
  1726			     unsigned long size)				{ return -EINVAL; }
  1727	static inline void *
  1728	perf_get_aux(struct perf_output_handle *handle)				{ return NULL; }
  1729	static inline void
  1730	perf_event_task_migrate(struct task_struct *task)			{ }
  1731	static inline void
  1732	perf_event_task_sched_in(struct task_struct *prev,
  1733				 struct task_struct *task)			{ }
  1734	static inline void
  1735	perf_event_task_sched_out(struct task_struct *prev,
  1736				  struct task_struct *next)			{ }
  1737	static inline int perf_event_init_task(struct task_struct *child,
  1738					       u64 clone_flags)			{ return 0; }
  1739	static inline void perf_event_exit_task(struct task_struct *child)	{ }
  1740	static inline void perf_event_free_task(struct task_struct *task)	{ }
  1741	static inline void perf_event_delayed_put(struct task_struct *task)	{ }
  1742	static inline struct file *perf_event_get(unsigned int fd)	{ return ERR_PTR(-EINVAL); }
  1743	static inline const struct perf_event *perf_get_event(struct file *file)
  1744	{
  1745		return ERR_PTR(-EINVAL);
  1746	}
  1747	static inline const struct perf_event_attr *perf_event_attrs(struct perf_event *event)
  1748	{
  1749		return ERR_PTR(-EINVAL);
  1750	}
  1751	static inline int perf_event_read_local(struct perf_event *event, u64 *value,
  1752						u64 *enabled, u64 *running)
  1753	{
  1754		return -EINVAL;
  1755	}
  1756	static inline void perf_event_print_debug(void)				{ }
  1757	static inline int perf_event_task_disable(void)				{ return -EINVAL; }
  1758	static inline int perf_event_task_enable(void)				{ return -EINVAL; }
  1759	static inline int perf_event_refresh(struct perf_event *event, int refresh)
  1760	{
  1761		return -EINVAL;
  1762	}
  1763	

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

^ permalink raw reply	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2023-03-05 10:21 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2023-03-05  7:36 ` [PATCH] perf/core: introduced stub APIs for exported APIs kernel test robot
2023-03-05  7:36 ` kernel test robot
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