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Message-ID: <202409240556.LgM8vOIF-lkp@intel.com>
Date: Tue, 24 Sep 2024 05:30:35 +0800
From: kernel test robot <lkp@...el.com>
To: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc: oe-kbuild-all@...ts.linux.dev,
	Linux Memory Management List <linux-mm@...ck.org>,
	Vlastimil Babka <vbabka@...e.cz>,
	"Liam R . Howlett" <Liam.Howlett@...cle.com>,
	Suren Baghdasaryan <surenb@...gle.com>,
	Arnd Bergmann <arnd@...db.de>,
	Shakeel Butt <shakeel.butt@...ux.dev>, linux-api@...r.kernel.org,
	linux-kernel@...r.kernel.org, Minchan Kim <minchan@...nel.org>
Subject: Re: [PATCH 1/2] mm/madvise: introduce PR_MADV_SELF flag to
 process_madvise()

Hi Lorenzo,

kernel test robot noticed the following build errors:

[auto build test ERROR on akpm-mm/mm-everything]
[also build test ERROR on arnd-asm-generic/master soc/for-next linus/master v6.11 next-20240923]
[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/Lorenzo-Stoakes/mm-madvise-introduce-PR_MADV_SELF-flag-to-process_madvise/20240924-000845
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/077be0d59cb1047870a84c87c62e7b027af1c75d.1727106751.git.lorenzo.stoakes%40oracle.com
patch subject: [PATCH 1/2] mm/madvise: introduce PR_MADV_SELF flag to process_madvise()
config: parisc-allnoconfig (https://download.01.org/0day-ci/archive/20240924/202409240556.LgM8vOIF-lkp@intel.com/config)
compiler: hppa-linux-gcc (GCC) 14.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240924/202409240556.LgM8vOIF-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/202409240556.LgM8vOIF-lkp@intel.com/

All errors (new ones prefixed by >>):

   mm/madvise.c: In function '__do_sys_process_madvise':
>> mm/madvise.c:1514:22: error: 'PR_MADV_SELF' undeclared (first use in this function)
    1514 |         if (flags & ~PR_MADV_SELF) {
         |                      ^~~~~~~~~~~~
   mm/madvise.c:1514:22: note: each undeclared identifier is reported only once for each function it appears in


vim +/PR_MADV_SELF +1514 mm/madvise.c

  1502	
  1503	SYSCALL_DEFINE5(process_madvise, int, pidfd, const struct iovec __user *, vec,
  1504			size_t, vlen, int, behavior, unsigned int, flags)
  1505	{
  1506		ssize_t ret;
  1507		struct iovec iovstack[UIO_FASTIOV];
  1508		struct iovec *iov = iovstack;
  1509		struct iov_iter iter;
  1510		struct task_struct *task;
  1511		struct mm_struct *mm;
  1512		unsigned int f_flags;
  1513	
> 1514		if (flags & ~PR_MADV_SELF) {

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

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