[linux-next:master 10352/10516] include/linux/mm.h:101:35: error: 'MAX_PHYSMEM_BITS' undeclared

[kernel test robot <lkp@intel.com>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   100cc857359b5d731407d1038f7e76cd0e871d94
commit: 5f445800cbdfc4b4185d496a43dfd78df63d2265 [10352/10516] Merge branch 'mm-everything' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
config: m68k-allmodconfig (https://download.01.org/0day-ci/archive/20240910/202409100913.RxkfrKU6-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 14.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240910/202409100913.RxkfrKU6-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202409100913.RxkfrKU6-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from include/linux/ioport.h:15,
                    from kernel/resource.c:15:
   kernel/resource.c: In function 'gfr_start':
>> include/linux/mm.h:101:35: error: 'MAX_PHYSMEM_BITS' undeclared (first use in this function)
     101 | # define PHYSMEM_END    ((1ULL << MAX_PHYSMEM_BITS) - 1)
         |                                   ^~~~~~~~~~~~~~~~
   include/linux/minmax.h:93:38: note: in definition of macro '__cmp_once_unique'
      93 |         ({ type ux = (x); type uy = (y); __cmp(op, ux, uy); })
         |                                      ^
   include/linux/minmax.h:213:27: note: in expansion of macro '__cmp_once'
     213 | #define min_t(type, x, y) __cmp_once(min, type, x, y)
         |                           ^~~~~~~~~~
   kernel/resource.c:1874:23: note: in expansion of macro 'min_t'
    1874 |                 end = min_t(resource_size_t, base->end, PHYSMEM_END);
         |                       ^~~~~
   kernel/resource.c:1874:57: note: in expansion of macro 'PHYSMEM_END'
    1874 |                 end = min_t(resource_size_t, base->end, PHYSMEM_END);
         |                                                         ^~~~~~~~~~~
   include/linux/mm.h:101:35: note: each undeclared identifier is reported only once for each function it appears in
     101 | # define PHYSMEM_END    ((1ULL << MAX_PHYSMEM_BITS) - 1)
         |                                   ^~~~~~~~~~~~~~~~
   include/linux/minmax.h:93:38: note: in definition of macro '__cmp_once_unique'
      93 |         ({ type ux = (x); type uy = (y); __cmp(op, ux, uy); })
         |                                      ^
   include/linux/minmax.h:213:27: note: in expansion of macro '__cmp_once'
     213 | #define min_t(type, x, y) __cmp_once(min, type, x, y)
         |                           ^~~~~~~~~~
   kernel/resource.c:1874:23: note: in expansion of macro 'min_t'
    1874 |                 end = min_t(resource_size_t, base->end, PHYSMEM_END);
         |                       ^~~~~
   kernel/resource.c:1874:57: note: in expansion of macro 'PHYSMEM_END'
    1874 |                 end = min_t(resource_size_t, base->end, PHYSMEM_END);
         |                                                         ^~~~~~~~~~~
   kernel/resource.c: In function 'gfr_continue':
>> include/linux/mm.h:101:35: error: 'MAX_PHYSMEM_BITS' undeclared (first use in this function)
     101 | # define PHYSMEM_END    ((1ULL << MAX_PHYSMEM_BITS) - 1)
         |                                   ^~~~~~~~~~~~~~~~
   include/linux/minmax.h:93:38: note: in definition of macro '__cmp_once_unique'
      93 |         ({ type ux = (x); type uy = (y); __cmp(op, ux, uy); })
         |                                      ^
   include/linux/minmax.h:213:27: note: in expansion of macro '__cmp_once'
     213 | #define min_t(type, x, y) __cmp_once(min, type, x, y)
         |                           ^~~~~~~~~~
   kernel/resource.c:1891:24: note: in expansion of macro 'min_t'
    1891 |                addr <= min_t(resource_size_t, base->end, PHYSMEM_END);
         |                        ^~~~~
   kernel/resource.c:1891:58: note: in expansion of macro 'PHYSMEM_END'
    1891 |                addr <= min_t(resource_size_t, base->end, PHYSMEM_END);
         |                                                          ^~~~~~~~~~~

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for GET_FREE_REGION
   Depends on [n]: SPARSEMEM [=n]
   Selected by [m]:
   - RESOURCE_KUNIT_TEST [=m] && RUNTIME_TESTING_MENU [=y] && KUNIT [=m]


vim +/MAX_PHYSMEM_BITS +101 include/linux/mm.h

d07e22597d1d35 Daniel Cashman  2016-01-14   99  
ea72ce5da22806 Thomas Gleixner 2024-08-14  100  #ifndef PHYSMEM_END
ea72ce5da22806 Thomas Gleixner 2024-08-14 @101  # define PHYSMEM_END	((1ULL << MAX_PHYSMEM_BITS) - 1)
ea72ce5da22806 Thomas Gleixner 2024-08-14  102  #endif
ea72ce5da22806 Thomas Gleixner 2024-08-14  103  

:::::: The code at line 101 was first introduced by commit
:::::: ea72ce5da22806d5713f3ffb39a6d5ae73841f93 x86/kaslr: Expose and use the end of the physical memory address space

:::::: TO: Thomas Gleixner <tglx@linutronix.de>
:::::: CC: Thomas Gleixner <tglx@linutronix.de>

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