[hnaz-linux-mm:master 177/523] arch/arc/mm/init.c:80:6: warning: no previous prototype for 'arch_has_descending_max_zone_pfns'
6:32 p.m.
tree: https://github.com/hnaz/linux-mm master
head: 2bbf0589bfeb27800c730b76eacf34528eee5418
commit: 3ae9a28a04fa372644c181c9419b3312efe55d77 [177/523] mm: free_area_init: allow
defining max_zone_pfn in descending order
config: arc-defconfig (attached as .config)
compiler: arc-elf-gcc (GCC) 9.3.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout 3ae9a28a04fa372644c181c9419b3312efe55d77
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp(a)intel.com>
All warnings (new ones prefixed by >>, old ones prefixed by <<):
arch/arc/mm/init.c:39:13: warning: no previous prototype for 'arc_get_mem_sz'
[-Wmissing-prototypes]
39 | long __init arc_get_mem_sz(void)
| ^~~~~~~~~~~~~~
> arch/arc/mm/init.c:80:6: warning: no previous prototype for
'arch_has_descending_max_zone_pfns' [-Wmissing-prototypes]
80 | bool
arch_has_descending_max_zone_pfns(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arc/mm/init.c:91:13: warning: no previous prototype for 'setup_arch_memory'
[-Wmissing-prototypes]
91 | void __init setup_arch_memory(void)
| ^~~~~~~~~~~~~~~~~
vim +/arch_has_descending_max_zone_pfns +80 arch/arc/mm/init.c
79
80 bool arch_has_descending_max_zone_pfns(void)
81 {
82 return true;
83 }
84
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
3:45 a.m.
On Tue, May 19, 2020 at 04:32:29PM +0800, kbuild test robot wrote:
tree: https://github.com/hnaz/linux-mm master
head: 2bbf0589bfeb27800c730b76eacf34528eee5418
commit: 3ae9a28a04fa372644c181c9419b3312efe55d77 [177/523] mm: free_area_init: allow
defining max_zone_pfn in descending order
config: arc-defconfig (attached as .config)
compiler: arc-elf-gcc (GCC) 9.3.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout 3ae9a28a04fa372644c181c9419b3312efe55d77
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp(a)intel.com>
All warnings (new ones prefixed by >>, old ones prefixed by <<):
arch/arc/mm/init.c:39:13: warning: no previous prototype for 'arc_get_mem_sz'
[-Wmissing-prototypes]
39 | long __init arc_get_mem_sz(void)
| ^~~~~~~~~~~~~~
>> arch/arc/mm/init.c:80:6: warning: no previous prototype for
'arch_has_descending_max_zone_pfns' [-Wmissing-prototypes]
80 | bool arch_has_descending_max_zone_pfns(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arc/mm/init.c:91:13: warning: no previous prototype for 'setup_arch_memory'
[-Wmissing-prototypes]
91 | void __init setup_arch_memory(void)
| ^~~~~~~~~~~~~~~~~
vim +/arch_has_descending_max_zone_pfns +80 arch/arc/mm/init.c
79
> 80 bool arch_has_descending_max_zone_pfns(void)
81 {
82 return true;
83 }
84
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
Here is the fix.
From f1cfbc50f1eee57c6c648e08dccaf5f0eb699578 Mon Sep 17 00:00:00 2001
From: Mike Rapoport <rppt(a)linux.ibm.com>
Date: Tue, 19 May 2020 20:40:25 +0300
Subject: [PATCH] mm: add forward declaration of arch_has_descending_max_zone_pfns()
to silence gcc warning reported by kbuild test robot:
> arch/arc/mm/init.c:80:6: warning: no previous prototype for
'arch_has_descending_max_zone_pfns' [-Wmissing-prototypes]
80 | bool arch_has_descending_max_zone_pfns(void)
Reported-by: kbuild test robot <lkp(a)intel.com>
Signed-off-by: Mike Rapoport <rppt(a)linux.ibm.com>
---
include/linux/mm.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index d184c47079da..0c3d8187cff9 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2351,6 +2351,7 @@ static inline unsigned long get_num_physpages(void)
* sparse_memory_present_with_active_regions() calls memory_present() for
* each range when SPARSEMEM is enabled.
*/
+bool arch_has_descending_max_zone_pfns(void);
void free_area_init(unsigned long *max_zone_pfn);
unsigned long node_map_pfn_alignment(void);
unsigned long __absent_pages_in_range(int nid, unsigned long start_pfn,
--
2.26.2
--
Sincerely yours,
Mike.
12:09 p.m.
On Tue, 19 May 2020 20:45:01 +0300 Mike Rapoport <rppt(a)kernel.org> wrote:
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2351,6 +2351,7 @@ static inline unsigned long get_num_physpages(void)
* sparse_memory_present_with_active_regions() calls memory_present() for
* each range when SPARSEMEM is enabled.
*/
+bool arch_has_descending_max_zone_pfns(void);
void free_area_init(unsigned long *max_zone_pfn);
unsigned long node_map_pfn_alignment(void);
unsigned long __absent_pages_in_range(int nid, unsigned long start_pfn,
I kinda preferred my patch ;) There's a section of mm.h just for
page_alloc.c.
853
days inactive
854
days old
2 comments
3 participants
participants (3)
-
Andrew Morton -
kbuild test robot -
Mike Rapoport