linux-kernel - Re: [PATCH mm-new] mm/zblock: avoid failing the build

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Message-ID: <202504281654.Cj20Gqsl-lkp@intel.com>
Date: Mon, 28 Apr 2025 16:46:15 +0800
From: kernel test robot <lkp@...el.com>
To: Igor Belousov <igor.b@...dev.am>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Cc: oe-kbuild-all@...ts.linux.dev, akpm@...ux-foundation.org,
	hannes@...xchg.org, minchan@...nel.org, nphamcs@...il.com,
	senozhatsky@...omium.org, shakeel.butt@...ux.dev,
	yosry.ahmed@...ux.dev, Igor Belousov <igor.b@...dev.am>
Subject: Re: [PATCH mm-new] mm/zblock: avoid failing the build

Hi Igor,

kernel test robot noticed the following build errors:

[auto build test ERROR on akpm-mm/mm-everything]

url:    https://github.com/intel-lab-lkp/linux/commits/Igor-Belousov/mm-zblock-avoid-failing-the-build/20250428-150012
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20250428065727.57990-1-igor.b%40beldev.am
patch subject: [PATCH mm-new] mm/zblock: avoid failing the build
config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20250428/202504281654.Cj20Gqsl-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250428/202504281654.Cj20Gqsl-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/202504281654.Cj20Gqsl-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from mm/zblock.c:27:
>> mm/zblock.h:24:2: error: invalid preprocessing directive #warn; did you mean #warning?
      24 | #warn This PAGE_SIZE is not quite supported yet
         |  ^~~~
         |  warning


vim +24 mm/zblock.h

    16	
    17	#if PAGE_SIZE == 0x1000
    18	/* max 128 slots per block, max table size 32 */
    19	#define SLOT_BITS 7
    20	#elif PAGE_SIZE == 0x4000
    21	/* max 256 slots per block, max table size 64 */
    22	#define SLOT_BITS 8
    23	#else
  > 24	#warn This PAGE_SIZE is not quite supported yet
    25	#define SLOT_BITS 8
    26	#endif
    27	

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