[tip:tmp.tmp2 299/364] include/asm-generic/memory_model.h:34:55: error: 'mem_map' undeclared; did you mean 'memcmp'?

From: kernel test robot
Date: Sun Jun 13 2021 - 19:06:20 EST

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git tmp.tmp2
head: adcceb5eb7aee38e4a9c15bdf599655f0e1b1324
commit: 4392e2ebf7f46654e0f80914a847a293fbbb3e11 [299/364] sched/headers, fs: Simplify <linux/fs.h> dependencies
config: i386-defconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=4392e2ebf7f46654e0f80914a847a293fbbb3e11
git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
git fetch --no-tags tip tmp.tmp2
git checkout 4392e2ebf7f46654e0f80914a847a293fbbb3e11
# save the attached .config to linux build tree
make W=1 ARCH=i386

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

In file included from arch/x86/include/asm/page.h:76,
from arch/x86/include/asm/processor.h:23,
from include/linux/mutex.h:21,
from include/linux/notifier.h:14,
from include/linux/reboot.h:6,
from arch/x86/kernel/crash.c:19:
include/linux/kexec.h: In function 'page_to_boot_pfn':
>> include/asm-generic/memory_model.h:34:55: error: 'mem_map' undeclared (first use in this function); did you mean 'memcmp'?
34 | #define __page_to_pfn(page) ((unsigned long)((page) - mem_map) + \
| ^~~~~~~
include/asm-generic/memory_model.h:81:21: note: in expansion of macro '__page_to_pfn'
81 | #define page_to_pfn __page_to_pfn
| ^~~~~~~~~~~~~
include/linux/kexec.h:373:9: note: in expansion of macro 'page_to_pfn'
373 | return page_to_pfn(page);
| ^~~~~~~~~~~
include/asm-generic/memory_model.h:34:55: note: each undeclared identifier is reported only once for each function it appears in
34 | #define __page_to_pfn(page) ((unsigned long)((page) - mem_map) + \
| ^~~~~~~
include/asm-generic/memory_model.h:81:21: note: in expansion of macro '__page_to_pfn'
81 | #define page_to_pfn __page_to_pfn
| ^~~~~~~~~~~~~
include/linux/kexec.h:373:9: note: in expansion of macro 'page_to_pfn'
373 | return page_to_pfn(page);
| ^~~~~~~~~~~
include/linux/kexec.h: In function 'boot_pfn_to_page':
include/asm-generic/memory_model.h:33:29: error: 'mem_map' undeclared (first use in this function); did you mean 'memcmp'?
33 | #define __pfn_to_page(pfn) (mem_map + ((pfn) - ARCH_PFN_OFFSET))
| ^~~~~~~
include/asm-generic/memory_model.h:82:21: note: in expansion of macro '__pfn_to_page'
82 | #define pfn_to_page __pfn_to_page
| ^~~~~~~~~~~~~
include/linux/kexec.h:380:9: note: in expansion of macro 'pfn_to_page'
380 | return pfn_to_page(boot_pfn);
| ^~~~~~~~~~~
In file included from include/linux/uaccess.h:11,
from include/linux/compat.h:19,
from include/linux/kexec.h:25,
from arch/x86/kernel/crash.c:20:
arch/x86/kernel/crash.c: At top level:
arch/x86/include/asm/uaccess.h:46:20: warning: 'pagefault_disabled' used but never defined
46 | static inline bool pagefault_disabled(void);
| ^~~~~~~~~~~~~~~~~~
--
In file included from arch/x86/include/asm/page.h:76,
from arch/x86/include/asm/user_32.h:5,
from arch/x86/include/asm/user.h:6,
from include/linux/user.h:1,
from include/linux/elfcore.h:5,
from include/linux/crash_core.h:6,
from include/linux/kexec.h:18,
from include/linux/crash_dump.h:5,
from arch/x86/kernel/e820.c:12:
include/linux/kexec.h: In function 'page_to_boot_pfn':
>> include/asm-generic/memory_model.h:34:55: error: 'mem_map' undeclared (first use in this function); did you mean 'memcmp'?
34 | #define __page_to_pfn(page) ((unsigned long)((page) - mem_map) + \
| ^~~~~~~
include/asm-generic/memory_model.h:81:21: note: in expansion of macro '__page_to_pfn'
81 | #define page_to_pfn __page_to_pfn
| ^~~~~~~~~~~~~
include/linux/kexec.h:373:9: note: in expansion of macro 'page_to_pfn'
373 | return page_to_pfn(page);
| ^~~~~~~~~~~
include/asm-generic/memory_model.h:34:55: note: each undeclared identifier is reported only once for each function it appears in
34 | #define __page_to_pfn(page) ((unsigned long)((page) - mem_map) + \
| ^~~~~~~
include/asm-generic/memory_model.h:81:21: note: in expansion of macro '__page_to_pfn'
81 | #define page_to_pfn __page_to_pfn
| ^~~~~~~~~~~~~
include/linux/kexec.h:373:9: note: in expansion of macro 'page_to_pfn'
373 | return page_to_pfn(page);
| ^~~~~~~~~~~
include/linux/kexec.h: In function 'boot_pfn_to_page':
include/asm-generic/memory_model.h:33:29: error: 'mem_map' undeclared (first use in this function); did you mean 'memcmp'?
33 | #define __pfn_to_page(pfn) (mem_map + ((pfn) - ARCH_PFN_OFFSET))
| ^~~~~~~
include/asm-generic/memory_model.h:82:21: note: in expansion of macro '__pfn_to_page'
82 | #define pfn_to_page __pfn_to_page
| ^~~~~~~~~~~~~
include/linux/kexec.h:380:9: note: in expansion of macro 'pfn_to_page'
380 | return pfn_to_page(boot_pfn);
| ^~~~~~~~~~~
In file included from include/linux/uaccess.h:11,
from include/linux/compat.h:19,
from include/linux/kexec.h:25,
from include/linux/crash_dump.h:5,
from arch/x86/kernel/e820.c:12:
arch/x86/kernel/e820.c: At top level:
arch/x86/include/asm/uaccess.h:46:20: warning: 'pagefault_disabled' used but never defined
46 | static inline bool pagefault_disabled(void);
| ^~~~~~~~~~~~~~~~~~
--
In file included from arch/x86/include/asm/page.h:76,
from arch/x86/include/asm/user_32.h:5,
from arch/x86/include/asm/user.h:6,
from include/linux/user.h:1,
from include/linux/elfcore.h:5,
from include/linux/crash_core.h:6,
from include/linux/kexec.h:18,
from include/linux/crash_dump.h:5,
from arch/x86/kernel/setup.c:9:
include/linux/kexec.h: In function 'page_to_boot_pfn':
>> include/asm-generic/memory_model.h:34:55: error: 'mem_map' undeclared (first use in this function); did you mean 'memcmp'?
34 | #define __page_to_pfn(page) ((unsigned long)((page) - mem_map) + \
| ^~~~~~~
include/asm-generic/memory_model.h:81:21: note: in expansion of macro '__page_to_pfn'
81 | #define page_to_pfn __page_to_pfn
| ^~~~~~~~~~~~~
include/linux/kexec.h:373:9: note: in expansion of macro 'page_to_pfn'
373 | return page_to_pfn(page);
| ^~~~~~~~~~~
include/asm-generic/memory_model.h:34:55: note: each undeclared identifier is reported only once for each function it appears in
34 | #define __page_to_pfn(page) ((unsigned long)((page) - mem_map) + \
| ^~~~~~~
include/asm-generic/memory_model.h:81:21: note: in expansion of macro '__page_to_pfn'
81 | #define page_to_pfn __page_to_pfn
| ^~~~~~~~~~~~~
include/linux/kexec.h:373:9: note: in expansion of macro 'page_to_pfn'
373 | return page_to_pfn(page);
| ^~~~~~~~~~~
include/linux/kexec.h: In function 'boot_pfn_to_page':
include/asm-generic/memory_model.h:33:29: error: 'mem_map' undeclared (first use in this function); did you mean 'memcmp'?
33 | #define __pfn_to_page(pfn) (mem_map + ((pfn) - ARCH_PFN_OFFSET))
| ^~~~~~~
include/asm-generic/memory_model.h:82:21: note: in expansion of macro '__pfn_to_page'
82 | #define pfn_to_page __pfn_to_page
| ^~~~~~~~~~~~~
include/linux/kexec.h:380:9: note: in expansion of macro 'pfn_to_page'
380 | return pfn_to_page(boot_pfn);
| ^~~~~~~~~~~
In file included from include/linux/uaccess.h:11,
from include/linux/compat.h:19,
from include/linux/kexec.h:25,
from include/linux/crash_dump.h:5,
from arch/x86/kernel/setup.c:9:
arch/x86/kernel/setup.c: At top level:
arch/x86/include/asm/uaccess.h:46:20: warning: 'pagefault_disabled' used but never defined
46 | static inline bool pagefault_disabled(void);
| ^~~~~~~~~~~~~~~~~~
--
In file included from arch/x86/include/asm/page.h:76,
from arch/x86/include/asm/user_32.h:5,
from arch/x86/include/asm/user.h:6,
from include/linux/user.h:1,
from include/linux/elfcore.h:5,
from include/linux/crash_core.h:6,
from include/linux/kexec.h:18,
from kernel/reboot.c:12:
include/linux/kexec.h: In function 'page_to_boot_pfn':
>> include/asm-generic/memory_model.h:34:55: error: 'mem_map' undeclared (first use in this function); did you mean 'memcmp'?
34 | #define __page_to_pfn(page) ((unsigned long)((page) - mem_map) + \
| ^~~~~~~
include/asm-generic/memory_model.h:81:21: note: in expansion of macro '__page_to_pfn'
81 | #define page_to_pfn __page_to_pfn
| ^~~~~~~~~~~~~
include/linux/kexec.h:373:9: note: in expansion of macro 'page_to_pfn'
373 | return page_to_pfn(page);
| ^~~~~~~~~~~
include/asm-generic/memory_model.h:34:55: note: each undeclared identifier is reported only once for each function it appears in
34 | #define __page_to_pfn(page) ((unsigned long)((page) - mem_map) + \
| ^~~~~~~
include/asm-generic/memory_model.h:81:21: note: in expansion of macro '__page_to_pfn'
81 | #define page_to_pfn __page_to_pfn
| ^~~~~~~~~~~~~
include/linux/kexec.h:373:9: note: in expansion of macro 'page_to_pfn'
373 | return page_to_pfn(page);
| ^~~~~~~~~~~
include/linux/kexec.h: In function 'boot_pfn_to_page':
include/asm-generic/memory_model.h:33:29: error: 'mem_map' undeclared (first use in this function); did you mean 'memcmp'?
33 | #define __pfn_to_page(pfn) (mem_map + ((pfn) - ARCH_PFN_OFFSET))
| ^~~~~~~
include/asm-generic/memory_model.h:82:21: note: in expansion of macro '__pfn_to_page'
82 | #define pfn_to_page __pfn_to_page
| ^~~~~~~~~~~~~
include/linux/kexec.h:380:9: note: in expansion of macro 'pfn_to_page'
380 | return pfn_to_page(boot_pfn);
| ^~~~~~~~~~~
In file included from include/linux/uaccess.h:11,
from include/linux/compat.h:19,
from include/linux/kexec.h:25,
from kernel/reboot.c:12:
kernel/reboot.c: At top level:
arch/x86/include/asm/uaccess.h:46:20: warning: 'pagefault_disabled' used but never defined
46 | static inline bool pagefault_disabled(void);
| ^~~~~~~~~~~~~~~~~~
--
In file included from arch/x86/include/asm/page.h:76,
from arch/x86/include/asm/user_32.h:5,
from arch/x86/include/asm/user.h:6,
from include/linux/user.h:1,
from include/linux/elfcore.h:5,
from include/linux/crash_core.h:6,
from include/linux/kexec.h:18,
from include/linux/crash_dump.h:5,
from kernel/crash_dump.c:3:
include/linux/kexec.h: In function 'page_to_boot_pfn':
>> include/asm-generic/memory_model.h:34:55: error: 'mem_map' undeclared (first use in this function); did you mean 'memcmp'?
34 | #define __page_to_pfn(page) ((unsigned long)((page) - mem_map) + \
| ^~~~~~~
include/asm-generic/memory_model.h:81:21: note: in expansion of macro '__page_to_pfn'
81 | #define page_to_pfn __page_to_pfn
| ^~~~~~~~~~~~~
include/linux/kexec.h:373:9: note: in expansion of macro 'page_to_pfn'
373 | return page_to_pfn(page);
| ^~~~~~~~~~~
include/asm-generic/memory_model.h:34:55: note: each undeclared identifier is reported only once for each function it appears in
34 | #define __page_to_pfn(page) ((unsigned long)((page) - mem_map) + \
| ^~~~~~~
include/asm-generic/memory_model.h:81:21: note: in expansion of macro '__page_to_pfn'
81 | #define page_to_pfn __page_to_pfn
| ^~~~~~~~~~~~~
include/linux/kexec.h:373:9: note: in expansion of macro 'page_to_pfn'
373 | return page_to_pfn(page);
| ^~~~~~~~~~~
include/linux/kexec.h: In function 'boot_pfn_to_page':
include/asm-generic/memory_model.h:33:29: error: 'mem_map' undeclared (first use in this function); did you mean 'memcmp'?
33 | #define __pfn_to_page(pfn) (mem_map + ((pfn) - ARCH_PFN_OFFSET))
| ^~~~~~~
include/asm-generic/memory_model.h:82:21: note: in expansion of macro '__pfn_to_page'
82 | #define pfn_to_page __pfn_to_page
| ^~~~~~~~~~~~~
include/linux/kexec.h:380:9: note: in expansion of macro 'pfn_to_page'
380 | return pfn_to_page(boot_pfn);
| ^~~~~~~~~~~
In file included from include/linux/uaccess.h:11,
from include/linux/compat.h:19,
from include/linux/kexec.h:25,
from include/linux/crash_dump.h:5,
from kernel/crash_dump.c:3:
kernel/crash_dump.c: At top level:
arch/x86/include/asm/uaccess.h:46:20: warning: 'pagefault_disabled' used but never defined
46 | static inline bool pagefault_disabled(void);
| ^~~~~~~~~~~~~~~~~~
--
In file included from arch/x86/include/asm/page.h:76,
from arch/x86/include/asm/user_32.h:5,
from arch/x86/include/asm/user.h:6,
from include/linux/user.h:1,
from include/linux/elfcore.h:5,
from include/linux/crash_core.h:6,
from include/linux/kexec.h:18,
from lib/dump_stack.c:13:
include/linux/kexec.h: In function 'page_to_boot_pfn':
>> include/asm-generic/memory_model.h:34:55: error: 'mem_map' undeclared (first use in this function); did you mean 'memcmp'?
34 | #define __page_to_pfn(page) ((unsigned long)((page) - mem_map) + \
| ^~~~~~~
include/asm-generic/memory_model.h:81:21: note: in expansion of macro '__page_to_pfn'
81 | #define page_to_pfn __page_to_pfn
| ^~~~~~~~~~~~~
include/linux/kexec.h:373:9: note: in expansion of macro 'page_to_pfn'
373 | return page_to_pfn(page);
| ^~~~~~~~~~~
include/asm-generic/memory_model.h:34:55: note: each undeclared identifier is reported only once for each function it appears in
34 | #define __page_to_pfn(page) ((unsigned long)((page) - mem_map) + \
| ^~~~~~~
include/asm-generic/memory_model.h:81:21: note: in expansion of macro '__page_to_pfn'
81 | #define page_to_pfn __page_to_pfn
| ^~~~~~~~~~~~~
include/linux/kexec.h:373:9: note: in expansion of macro 'page_to_pfn'
373 | return page_to_pfn(page);
| ^~~~~~~~~~~
include/linux/kexec.h: In function 'boot_pfn_to_page':
include/asm-generic/memory_model.h:33:29: error: 'mem_map' undeclared (first use in this function); did you mean 'memcmp'?
33 | #define __pfn_to_page(pfn) (mem_map + ((pfn) - ARCH_PFN_OFFSET))
| ^~~~~~~
include/asm-generic/memory_model.h:82:21: note: in expansion of macro '__pfn_to_page'
82 | #define pfn_to_page __pfn_to_page
| ^~~~~~~~~~~~~
include/linux/kexec.h:380:9: note: in expansion of macro 'pfn_to_page'
380 | return pfn_to_page(boot_pfn);
| ^~~~~~~~~~~
In file included from include/linux/uaccess.h:11,
from include/linux/compat.h:19,
from include/linux/kexec.h:25,
from lib/dump_stack.c:13:
lib/dump_stack.c: At top level:
arch/x86/include/asm/uaccess.h:46:20: warning: 'pagefault_disabled' used but never defined
46 | static inline bool pagefault_disabled(void);
| ^~~~~~~~~~~~~~~~~~

vim +34 include/asm-generic/memory_model.h

a117e66ed45ac0 KAMEZAWA Hiroyuki 2006-03-27 32
67de648211fa04 Andy Whitcroft 2006-06-23 33 #define __pfn_to_page(pfn) (mem_map + ((pfn) - ARCH_PFN_OFFSET))
67de648211fa04 Andy Whitcroft 2006-06-23 @34 #define __page_to_pfn(page) ((unsigned long)((page) - mem_map) + \
a117e66ed45ac0 KAMEZAWA Hiroyuki 2006-03-27 35 ARCH_PFN_OFFSET)
a117e66ed45ac0 KAMEZAWA Hiroyuki 2006-03-27 36 #elif defined(CONFIG_DISCONTIGMEM)
a117e66ed45ac0 KAMEZAWA Hiroyuki 2006-03-27 37

:::::: The code at line 34 was first introduced by commit
:::::: 67de648211fa041fe08a0c25241a4980bbb90698 [PATCH] squash duplicate page_to_pfn and pfn_to_page

:::::: TO: Andy Whitcroft <apw@xxxxxxxxxxxx>
:::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxx>

---
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