linux-kernel - Re: [PATCH 2/4] mm: shmem: change shmem_huge_global

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Message-ID: <202411082236.7mwWSsNe-lkp@intel.com>
Date: Fri, 8 Nov 2024 23:11:16 +0800
From: kernel test robot <lkp@...el.com>
To: Baolin Wang <baolin.wang@...ux.alibaba.com>, akpm@...ux-foundation.org,
	hughd@...gle.com
Cc: oe-kbuild-all@...ts.linux.dev, willy@...radead.org, david@...hat.com,
	wangkefeng.wang@...wei.com, 21cnbao@...il.com, ryan.roberts@....com,
	ioworker0@...il.com, da.gomez@...sung.com,
	baolin.wang@...ux.alibaba.com, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/4] mm: shmem: change shmem_huge_global_enabled() to
 return huge order bitmap

Hi Baolin,

kernel test robot noticed the following build warnings:

[auto build test WARNING on akpm-mm/mm-everything]
[also build test WARNING on next-20241108]
[cannot apply to linus/master v6.12-rc6]
[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/Baolin-Wang/mm-factor-out-the-order-calculation-into-a-new-helper/20241108-121545
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/a0d41cdc3491878260277e8c18a3e71deb2bc1fb.1731038280.git.baolin.wang%40linux.alibaba.com
patch subject: [PATCH 2/4] mm: shmem: change shmem_huge_global_enabled() to return huge order bitmap
config: arc-allnoconfig (https://download.01.org/0day-ci/archive/20241108/202411082236.7mwWSsNe-lkp@intel.com/config)
compiler: arc-elf-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241108/202411082236.7mwWSsNe-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/202411082236.7mwWSsNe-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> mm/shmem.c:777:21: warning: 'shmem_huge_global_enabled' defined but not used [-Wunused-function]
     777 | static unsigned int shmem_huge_global_enabled(struct inode *inode, pgoff_t index,
         |                     ^~~~~~~~~~~~~~~~~~~~~~~~~


vim +/shmem_huge_global_enabled +777 mm/shmem.c

   776	
 > 777	static unsigned int shmem_huge_global_enabled(struct inode *inode, pgoff_t index,
   778						      loff_t write_end, bool shmem_huge_force,
   779						      unsigned long vm_flags)
   780	{
   781		return 0;
   782	}
   783	#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
   784	

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