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Date:   Tue, 10 Oct 2023 03:25:25 +0800
From:   kernel test robot <lkp@...el.com>
To:     Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: arch/alpha/mm/init.c:265:1: error: no previous prototype for
 'srm_paging_stop'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   94f6f0550c625fab1f373bb86a6669b45e9748b3
commit: b1fbfcb4a20949df08dd995927cdc5ad220c128d kbuild: make single target builds even faster
date:   3 years, 11 months ago
config: alpha-allnoconfig (https://download.01.org/0day-ci/archive/20231010/202310100311.WYXC5S24-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231010/202310100311.WYXC5S24-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202310100311.WYXC5S24-lkp@intel.com/

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

>> init/main.c:494:20: warning: no previous prototype for 'arch_post_acpi_subsys_init' [-Wmissing-prototypes]
     494 | void __init __weak arch_post_acpi_subsys_init(void) { }
         |                    ^~~~~~~~~~~~~~~~~~~~~~~~~~
>> init/main.c:506:20: warning: no previous prototype for 'mem_encrypt_init' [-Wmissing-prototypes]
     506 | void __init __weak mem_encrypt_init(void) { }
         |                    ^~~~~~~~~~~~~~~~
>> init/main.c:508:20: warning: no previous prototype for 'poking_init' [-Wmissing-prototypes]
     508 | void __init __weak poking_init(void) { }
         |                    ^~~~~~~~~~~
--
>> init/calibrate.c:261:37: warning: no previous prototype for 'calibrate_delay_is_known' [-Wmissing-prototypes]
     261 | unsigned long __attribute__((weak)) calibrate_delay_is_known(void)
         |                                     ^~~~~~~~~~~~~~~~~~~~~~~~
--
>> arch/alpha/mm/init.c:265:1: error: no previous prototype for 'srm_paging_stop' [-Werror=missing-prototypes]
     265 | srm_paging_stop (void)
         | ^~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors
--
>> arch/alpha/mm/fault.c:84:1: error: no previous prototype for 'do_page_fault' [-Werror=missing-prototypes]
      84 | do_page_fault(unsigned long address, unsigned long mmcsr,
         | ^~~~~~~~~~~~~
   cc1: all warnings being treated as errors
--
>> kernel/fork.c:160:13: warning: no previous prototype for 'arch_release_task_struct' [-Wmissing-prototypes]
     160 | void __weak arch_release_task_struct(struct task_struct *tsk)
         |             ^~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/fork.c:752:20: warning: no previous prototype for 'arch_task_cache_init' [-Wmissing-prototypes]
     752 | void __init __weak arch_task_cache_init(void) { }
         |                    ^~~~~~~~~~~~~~~~~~~~
>> kernel/fork.c:841:12: warning: no previous prototype for 'arch_dup_task_struct' [-Wmissing-prototypes]
     841 | int __weak arch_dup_task_struct(struct task_struct *dst,
         |            ^~~~~~~~~~~~~~~~~~~~
--
>> kernel/exit.c:1732:13: warning: no previous prototype for 'abort' [-Wmissing-prototypes]
    1732 | __weak void abort(void)
         |             ^~~~~
   In file included from include/linux/preempt.h:11,
                    from include/linux/spinlock.h:51,
                    from include/linux/mmzone.h:8,
                    from include/linux/gfp.h:6,
                    from include/linux/mm.h:10,
                    from kernel/exit.c:8:
   In function '__list_add',
       inlined from 'list_add' at include/linux/list.h:79:2,
       inlined from 'exit_notify' at kernel/exit.c:677:3:
   include/linux/list.h:65:19: warning: storing the address of local variable 'dead' in '((struct list_head *)tsk)[44].prev' [-Wdangling-pointer=]
      65 |         new->prev = prev;
         |         ~~~~~~~~~~^~~~~~
   kernel/exit.c: In function 'exit_notify':
   kernel/exit.c:653:19: note: 'dead' declared here
     653 |         LIST_HEAD(dead);
         |                   ^~~~
   include/linux/list.h:24:26: note: in definition of macro 'LIST_HEAD'
      24 |         struct list_head name = LIST_HEAD_INIT(name)
         |                          ^~~~
   kernel/exit.c:649:45: note: 'tsk' declared here
     649 | static void exit_notify(struct task_struct *tsk, int group_dead)
         |                         ~~~~~~~~~~~~~~~~~~~~^~~
--
>> kernel/kallsyms.c:450:12: warning: no previous prototype for 'arch_get_kallsym' [-Wmissing-prototypes]
     450 | int __weak arch_get_kallsym(unsigned int symnum, unsigned long *value,
         |            ^~~~~~~~~~~~~~~~
--
>> kernel/iomem.c:9:22: warning: no previous prototype for 'ioremap_cache' [-Wmissing-prototypes]
       9 | __weak void __iomem *ioremap_cache(resource_size_t offset, unsigned long size)
         |                      ^~~~~~~~~~~~~
--
>> fs/open.c:870: warning: Excess function parameter 'opened' description in 'finish_open'
>> fs/open.c:912: warning: Excess function parameter 'cred' description in 'vfs_open'
--
>> fs/read_write.c:88: warning: Function parameter or member 'maxsize' not described in 'generic_file_llseek_size'
>> fs/read_write.c:88: warning: Excess function parameter 'size' description in 'generic_file_llseek_size'
--
>> fs/d_path.c:311:7: warning: no previous prototype for 'simple_dname' [-Wmissing-prototypes]
     311 | char *simple_dname(struct dentry *dentry, char *buffer, int buflen)
         |       ^~~~~~~~~~~~
..


vim +/srm_paging_stop +265 arch/alpha/mm/init.c

^1da177e4c3f4152 Linus Torvalds 2005-04-16  262  
^1da177e4c3f4152 Linus Torvalds 2005-04-16  263  #if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_SRM)
^1da177e4c3f4152 Linus Torvalds 2005-04-16  264  void
^1da177e4c3f4152 Linus Torvalds 2005-04-16 @265  srm_paging_stop (void)
^1da177e4c3f4152 Linus Torvalds 2005-04-16  266  {
^1da177e4c3f4152 Linus Torvalds 2005-04-16  267  	/* Move the vptb back to where the SRM console expects it.  */
^1da177e4c3f4152 Linus Torvalds 2005-04-16  268  	swapper_pg_dir[1] = swapper_pg_dir[1023];
^1da177e4c3f4152 Linus Torvalds 2005-04-16  269  	tbia();
^1da177e4c3f4152 Linus Torvalds 2005-04-16  270  	wrvptptr(0x200000000UL);
^1da177e4c3f4152 Linus Torvalds 2005-04-16  271  	hwrpb->vptb = 0x200000000UL;
^1da177e4c3f4152 Linus Torvalds 2005-04-16  272  	hwrpb_update_checksum(hwrpb);
^1da177e4c3f4152 Linus Torvalds 2005-04-16  273  
^1da177e4c3f4152 Linus Torvalds 2005-04-16  274  	/* Reload the page tables that the console had in use.  */
^1da177e4c3f4152 Linus Torvalds 2005-04-16  275  	load_PCB(&original_pcb);
^1da177e4c3f4152 Linus Torvalds 2005-04-16  276  	tbia();
^1da177e4c3f4152 Linus Torvalds 2005-04-16  277  }
^1da177e4c3f4152 Linus Torvalds 2005-04-16  278  #endif
^1da177e4c3f4152 Linus Torvalds 2005-04-16  279  

:::::: The code at line 265 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torvalds@...970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@...970.osdl.org>

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

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