[PATCH] scripts: kernel-doc: add warning for comment not following kernel-doc syntax

[kernel test robot]

Hi Aditya,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on lwn/docs-next]
[also build test WARNING on linus/master v5.12-rc5 next-20210329]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Aditya-Srivastava/scripts-kernel-doc-add-warning-for-comment-not-following-kernel-doc-syntax/20210329-173213
base:   git://git.lwn.net/linux-2.6 docs-next
config: i386-tinyconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/0day-ci/linux/commit/274a7b0af9aa2846ed0a5b2096e07fe76e47fe29
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Aditya-Srivastava/scripts-kernel-doc-add-warning-for-comment-not-following-kernel-doc-syntax/20210329-173213
        git checkout 274a7b0af9aa2846ed0a5b2096e07fe76e47fe29
        # save the attached .config to linux build tree
        make W=1 ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp at intel.com>

All warnings (new ones prefixed by >>):

>> arch/x86/kernel/i8259.c:234: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * ELCR registers (0x4d0, 0x4d1) control edge/level of IRQ
--
>> arch/x86/lib/cmdline.c:17: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Find a boolean option (like quiet,noapic,nosmp....)
--
   arch/x86/lib/msr.c:40: warning: expecting prototype for Read an MSR with error handling(). Prototype was for msr_read() instead
   arch/x86/lib/msr.c:58: warning: expecting prototype for Write an MSR with error handling(). Prototype was for msr_write() instead
>> arch/x86/lib/msr.c:91: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Set @bit in a MSR @msr.
   arch/x86/lib/msr.c:104: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Clear @bit in a MSR @msr.


vim +234 arch/x86/kernel/i8259.c

4305df947ca1fd Thomas Gleixner 2010-09-28  231  
21fd5132b223a1 Pavel Machek    2008-05-21  232  static char irq_trigger[2];
21fd5132b223a1 Pavel Machek    2008-05-21  233  /**
21fd5132b223a1 Pavel Machek    2008-05-21 @234   * ELCR registers (0x4d0, 0x4d1) control edge/level of IRQ
21fd5132b223a1 Pavel Machek    2008-05-21  235   */
21fd5132b223a1 Pavel Machek    2008-05-21  236  static void restore_ELCR(char *trigger)
21fd5132b223a1 Pavel Machek    2008-05-21  237  {
21fd5132b223a1 Pavel Machek    2008-05-21  238  	outb(trigger[0], 0x4d0);
21fd5132b223a1 Pavel Machek    2008-05-21  239  	outb(trigger[1], 0x4d1);
21fd5132b223a1 Pavel Machek    2008-05-21  240  }
21fd5132b223a1 Pavel Machek    2008-05-21  241  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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