From: kernel test robot <lkp@intel.com>
To: kbuild-all@lists.01.org
Subject: [rgushchin:pageblocks.rfc 1/1] mm/page_alloc.c:561:6: warning: no previous prototype for 'init_pageblock_migratetype'
Date: Fri, 26 Mar 2021 14:39:40 +0800 [thread overview]
Message-ID: <202103261436.fXYNqmsg-lkp@intel.com> (raw)
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tree: https://github.com/rgushchin/linux.git pageblocks.rfc
head: a8332c741ea7062e373883a72ce12daf8b951a8e
commit: a8332c741ea7062e373883a72ce12daf8b951a8e [1/1] mm: page_alloc: introduce pageblocks stats
config: m68k-allmodconfig (attached as .config)
compiler: m68k-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/rgushchin/linux/commit/a8332c741ea7062e373883a72ce12daf8b951a8e
git remote add rgushchin https://github.com/rgushchin/linux.git
git fetch --no-tags rgushchin pageblocks.rfc
git checkout a8332c741ea7062e373883a72ce12daf8b951a8e
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
In file included from include/asm-generic/bug.h:5,
from arch/m68k/include/asm/bug.h:32,
from include/linux/bug.h:5,
from include/linux/mmdebug.h:5,
from include/linux/mm.h:9,
from mm/page_alloc.c:19:
include/linux/scatterlist.h: In function 'sg_set_buf':
arch/m68k/include/asm/page_mm.h:174:49: warning: ordered comparison of pointer with null pointer [-Wextra]
174 | #define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void *)PAGE_OFFSET && (void *)(kaddr) < high_memory)
| ^~
include/linux/compiler.h:78:42: note: in definition of macro 'unlikely'
78 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
include/linux/scatterlist.h:137:2: note: in expansion of macro 'BUG_ON'
137 | BUG_ON(!virt_addr_valid(buf));
| ^~~~~~
include/linux/scatterlist.h:137:10: note: in expansion of macro 'virt_addr_valid'
137 | BUG_ON(!virt_addr_valid(buf));
| ^~~~~~~~~~~~~~~
In file included from arch/m68k/include/asm/page.h:60,
from arch/m68k/include/asm/thread_info.h:6,
from include/linux/thread_info.h:58,
from include/asm-generic/preempt.h:5,
from ./arch/m68k/include/generated/asm/preempt.h:1,
from include/linux/preempt.h:78,
from include/linux/spinlock.h:51,
from include/linux/mmzone.h:8,
from include/linux/gfp.h:6,
from include/linux/mm.h:10,
from mm/page_alloc.c:19:
mm/internal.h: In function 'mem_map_next':
arch/m68k/include/asm/page_mm.h:174:49: warning: ordered comparison of pointer with null pointer [-Wextra]
174 | #define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void *)PAGE_OFFSET && (void *)(kaddr) < high_memory)
| ^~
arch/m68k/include/asm/page_mm.h:175:25: note: in expansion of macro 'virt_addr_valid'
175 | #define pfn_valid(pfn) virt_addr_valid(pfn_to_virt(pfn))
| ^~~~~~~~~~~~~~~
mm/internal.h:459:8: note: in expansion of macro 'pfn_valid'
459 | if (!pfn_valid(pfn))
| ^~~~~~~~~
mm/page_alloc.c: At top level:
>> mm/page_alloc.c:561:6: warning: no previous prototype for 'init_pageblock_migratetype' [-Wmissing-prototypes]
561 | void init_pageblock_migratetype(struct page *page, int migratetype)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from arch/m68k/include/asm/page.h:60,
from arch/m68k/include/asm/thread_info.h:6,
from include/linux/thread_info.h:58,
from include/asm-generic/preempt.h:5,
from ./arch/m68k/include/generated/asm/preempt.h:1,
from include/linux/preempt.h:78,
from include/linux/spinlock.h:51,
from include/linux/mmzone.h:8,
from include/linux/gfp.h:6,
from include/linux/mm.h:10,
from mm/page_alloc.c:19:
mm/page_alloc.c: In function 'reserve_bootmem_region':
arch/m68k/include/asm/page_mm.h:174:49: warning: ordered comparison of pointer with null pointer [-Wextra]
174 | #define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void *)PAGE_OFFSET && (void *)(kaddr) < high_memory)
| ^~
arch/m68k/include/asm/page_mm.h:175:25: note: in expansion of macro 'virt_addr_valid'
175 | #define pfn_valid(pfn) virt_addr_valid(pfn_to_virt(pfn))
| ^~~~~~~~~~~~~~~
mm/page_alloc.c:1540:7: note: in expansion of macro 'pfn_valid'
1540 | if (pfn_valid(start_pfn)) {
| ^~~~~~~~~
mm/page_alloc.c: In function '__pageblock_pfn_to_page':
arch/m68k/include/asm/page_mm.h:174:49: warning: ordered comparison of pointer with null pointer [-Wextra]
174 | #define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void *)PAGE_OFFSET && (void *)(kaddr) < high_memory)
| ^~
arch/m68k/include/asm/page_mm.h:175:25: note: in expansion of macro 'virt_addr_valid'
175 | #define pfn_valid(pfn) virt_addr_valid(pfn_to_virt(pfn))
| ^~~~~~~~~~~~~~~
mm/page_alloc.c:1691:7: note: in expansion of macro 'pfn_valid'
1691 | if (!pfn_valid(start_pfn) || !pfn_valid(end_pfn))
| ^~~~~~~~~
arch/m68k/include/asm/page_mm.h:174:49: warning: ordered comparison of pointer with null pointer [-Wextra]
174 | #define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void *)PAGE_OFFSET && (void *)(kaddr) < high_memory)
| ^~
arch/m68k/include/asm/page_mm.h:175:25: note: in expansion of macro 'virt_addr_valid'
175 | #define pfn_valid(pfn) virt_addr_valid(pfn_to_virt(pfn))
| ^~~~~~~~~~~~~~~
mm/page_alloc.c:1691:32: note: in expansion of macro 'pfn_valid'
1691 | if (!pfn_valid(start_pfn) || !pfn_valid(end_pfn))
| ^~~~~~~~~
arch/m68k/include/asm/page_mm.h:174:49: warning: ordered comparison of pointer with null pointer [-Wextra]
174 | #define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void *)PAGE_OFFSET && (void *)(kaddr) < high_memory)
| ^~
arch/m68k/include/asm/page_mm.h:175:25: note: in expansion of macro 'virt_addr_valid'
175 | #define pfn_valid(pfn) virt_addr_valid(pfn_to_virt(pfn))
| ^~~~~~~~~~~~~~~
include/linux/memory_hotplug.h:246:6: note: in expansion of macro 'pfn_valid'
246 | if (pfn_valid(pfn)) \
| ^~~~~~~~~
mm/page_alloc.c:1694:15: note: in expansion of macro 'pfn_to_online_page'
1694 | start_page = pfn_to_online_page(start_pfn);
| ^~~~~~~~~~~~~~~~~~
mm/page_alloc.c: At top level:
mm/page_alloc.c:3628:15: warning: no previous prototype for 'should_fail_alloc_page' [-Wmissing-prototypes]
3628 | noinline bool should_fail_alloc_page(gfp_t gfp_mask, unsigned int order)
| ^~~~~~~~~~~~~~~~~~~~~~
In file included from include/asm-generic/bug.h:5,
from arch/m68k/include/asm/bug.h:32,
from include/linux/bug.h:5,
from include/linux/mmdebug.h:5,
from include/linux/mm.h:9,
from mm/page_alloc.c:19:
mm/page_alloc.c: In function 'free_pages':
arch/m68k/include/asm/page_mm.h:174:49: warning: ordered comparison of pointer with null pointer [-Wextra]
174 | #define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void *)PAGE_OFFSET && (void *)(kaddr) < high_memory)
| ^~
include/linux/compiler.h:78:42: note: in definition of macro 'unlikely'
78 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
include/linux/mmdebug.h:18:25: note: in expansion of macro 'BUG_ON'
18 | #define VM_BUG_ON(cond) BUG_ON(cond)
| ^~~~~~
mm/page_alloc.c:5121:3: note: in expansion of macro 'VM_BUG_ON'
5121 | VM_BUG_ON(!virt_addr_valid((void *)addr));
| ^~~~~~~~~
mm/page_alloc.c:5121:14: note: in expansion of macro 'virt_addr_valid'
5121 | VM_BUG_ON(!virt_addr_valid((void *)addr));
| ^~~~~~~~~~~~~~~
mm/page_alloc.c: At top level:
mm/page_alloc.c:6289:23: warning: no previous prototype for 'memmap_init' [-Wmissing-prototypes]
6289 | void __meminit __weak memmap_init(unsigned long size, int nid,
| ^~~~~~~~~~~
In file included from arch/m68k/include/asm/page.h:60,
from arch/m68k/include/asm/thread_info.h:6,
from include/linux/thread_info.h:58,
from include/asm-generic/preempt.h:5,
from ./arch/m68k/include/generated/asm/preempt.h:1,
from include/linux/preempt.h:78,
from include/linux/spinlock.h:51,
from include/linux/mmzone.h:8,
from include/linux/gfp.h:6,
from include/linux/mm.h:10,
from mm/page_alloc.c:19:
mm/page_alloc.c: In function 'pfn_range_valid_contig':
arch/m68k/include/asm/page_mm.h:174:49: warning: ordered comparison of pointer with null pointer [-Wextra]
174 | #define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void *)PAGE_OFFSET && (void *)(kaddr) < high_memory)
| ^~
arch/m68k/include/asm/page_mm.h:175:25: note: in expansion of macro 'virt_addr_valid'
vim +/init_pageblock_migratetype +561 mm/page_alloc.c
560
> 561 void init_pageblock_migratetype(struct page *page, int migratetype)
562 {
563 if (unlikely(page_group_by_mobility_disabled &&
564 migratetype < MIGRATE_PCPTYPES))
565 migratetype = MIGRATE_UNMOVABLE;
566
567 set_pfnblock_flags_mask(page, (unsigned long)migratetype,
568 page_to_pfn(page), MIGRATETYPE_MASK);
569 pageblock_stats[migratetype]++;
570 }
571
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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