* Re: [PATCH V2 2/2] mm/highmem: Lift memcpy_[to|from]_page to core
[not found] <20201207225703.2033611-3-ira.weiny@intel.com>
@ 2020-12-08 0:40 ` kernel test robot
2020-12-08 1:09 ` kernel test robot
1 sibling, 0 replies; 2+ messages in thread
From: kernel test robot @ 2020-12-08 0:40 UTC (permalink / raw)
To: ira.weiny, Thomas Gleixner, Andrew Morton
Cc: kbuild-all, Linux Memory Management List, Ira Weiny, Dave Hansen,
Matthew Wilcox, Christoph Hellwig, Dan Williams, Al Viro,
Eric Biggers
[-- Attachment #1: Type: text/plain, Size: 11401 bytes --]
Hi,
I love your patch! Perhaps something to improve:
[auto build test WARNING on hch-configfs/for-next]
[also build test WARNING on linus/master v5.10-rc7]
[cannot apply to hnaz-linux-mm/master next-20201207]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/ira-weiny-intel-com/Lift-memcpy_-to-from-_page-to-core/20201208-070017
base: git://git.infradead.org/users/hch/configfs.git for-next
config: riscv-nommu_k210_defconfig (attached as .config)
compiler: riscv64-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/0day-ci/linux/commit/23e6d3f08a315c6e70fde3d63a275c91e1dcb0ee
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review ira-weiny-intel-com/Lift-memcpy_-to-from-_page-to-core/20201208-070017
git checkout 23e6d3f08a315c6e70fde3d63a275c91e1dcb0ee
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=riscv
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 drivers/char/mem.c:24:
include/linux/highmem.h: In function 'clear_user_highpage':
include/linux/highmem.h:229:15: error: implicit declaration of function 'kmap_local_page'; did you mean 'kmap_to_page'? [-Werror=implicit-function-declaration]
229 | void *addr = kmap_local_page(page);
| ^~~~~~~~~~~~~~~
| kmap_to_page
include/linux/highmem.h:229:15: warning: initialization of 'void *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
include/linux/highmem.h:231:2: error: implicit declaration of function 'kunmap_local' [-Werror=implicit-function-declaration]
231 | kunmap_local(addr);
| ^~~~~~~~~~~~
include/linux/highmem.h: In function 'clear_highpage':
include/linux/highmem.h:282:16: warning: initialization of 'void *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
282 | void *kaddr = kmap_local_page(page);
| ^~~~~~~~~~~~~~~
include/linux/highmem.h: In function 'zero_user_segments':
include/linux/highmem.h:291:16: warning: initialization of 'void *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
291 | void *kaddr = kmap_local_page(page);
| ^~~~~~~~~~~~~~~
include/linux/highmem.h: In function 'copy_user_highpage':
include/linux/highmem.h:324:8: warning: assignment to 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
324 | vfrom = kmap_local_page(from);
| ^
include/linux/highmem.h:325:6: warning: assignment to 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
325 | vto = kmap_local_page(to);
| ^
include/linux/highmem.h: In function 'copy_highpage':
include/linux/highmem.h:339:8: warning: assignment to 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
339 | vfrom = kmap_local_page(from);
| ^
include/linux/highmem.h:340:6: warning: assignment to 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
340 | vto = kmap_local_page(to);
| ^
In file included from include/linux/blkdev.h:14,
from include/linux/backing-dev.h:15,
from drivers/char/mem.c:25:
include/linux/pagemap.h: In function 'memcpy_page':
>> include/linux/pagemap.h:1036:14: warning: initialization of 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
1036 | char *dst = kmap_local_page(dst_page);
| ^~~~~~~~~~~~~~~
include/linux/pagemap.h:1037:14: warning: initialization of 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
1037 | char *src = kmap_local_page(src_page);
| ^~~~~~~~~~~~~~~
include/linux/pagemap.h: In function 'memmove_page':
include/linux/pagemap.h:1047:14: warning: initialization of 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
1047 | char *dst = kmap_local_page(dst_page);
| ^~~~~~~~~~~~~~~
include/linux/pagemap.h:1048:14: warning: initialization of 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
1048 | char *src = kmap_local_page(src_page);
| ^~~~~~~~~~~~~~~
include/linux/pagemap.h: In function 'memcpy_from_page':
include/linux/pagemap.h:1056:15: warning: initialization of 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
1056 | char *from = kmap_local_page(page);
| ^~~~~~~~~~~~~~~
include/linux/pagemap.h: In function 'memcpy_to_page':
include/linux/pagemap.h:1063:13: warning: initialization of 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
1063 | char *to = kmap_local_page(page);
| ^~~~~~~~~~~~~~~
include/linux/pagemap.h: In function 'memset_page':
include/linux/pagemap.h:1070:15: warning: initialization of 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
1070 | char *addr = kmap_local_page(page);
| ^~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
--
In file included from include/linux/pagemap.h:11,
from include/linux/blkdev.h:14,
from include/linux/blk-cgroup.h:23,
from include/linux/writeback.h:14,
from include/trace/events/random.h:8,
from drivers/char/random.c:348:
include/linux/highmem.h: In function 'clear_user_highpage':
include/linux/highmem.h:229:15: error: implicit declaration of function 'kmap_local_page'; did you mean 'kmap_to_page'? [-Werror=implicit-function-declaration]
229 | void *addr = kmap_local_page(page);
| ^~~~~~~~~~~~~~~
| kmap_to_page
include/linux/highmem.h:229:15: warning: initialization of 'void *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
include/linux/highmem.h:231:2: error: implicit declaration of function 'kunmap_local' [-Werror=implicit-function-declaration]
231 | kunmap_local(addr);
| ^~~~~~~~~~~~
include/linux/highmem.h: In function 'clear_highpage':
include/linux/highmem.h:282:16: warning: initialization of 'void *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
282 | void *kaddr = kmap_local_page(page);
| ^~~~~~~~~~~~~~~
include/linux/highmem.h: In function 'zero_user_segments':
include/linux/highmem.h:291:16: warning: initialization of 'void *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
291 | void *kaddr = kmap_local_page(page);
| ^~~~~~~~~~~~~~~
include/linux/highmem.h: In function 'copy_user_highpage':
include/linux/highmem.h:324:8: warning: assignment to 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
324 | vfrom = kmap_local_page(from);
| ^
include/linux/highmem.h:325:6: warning: assignment to 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
325 | vto = kmap_local_page(to);
| ^
include/linux/highmem.h: In function 'copy_highpage':
include/linux/highmem.h:339:8: warning: assignment to 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
339 | vfrom = kmap_local_page(from);
| ^
include/linux/highmem.h:340:6: warning: assignment to 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
340 | vto = kmap_local_page(to);
| ^
In file included from include/linux/blkdev.h:14,
from include/linux/blk-cgroup.h:23,
from include/linux/writeback.h:14,
from include/trace/events/random.h:8,
from drivers/char/random.c:348:
include/linux/pagemap.h: In function 'memcpy_page':
>> include/linux/pagemap.h:1036:14: warning: initialization of 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
1036 | char *dst = kmap_local_page(dst_page);
| ^~~~~~~~~~~~~~~
include/linux/pagemap.h:1037:14: warning: initialization of 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
1037 | char *src = kmap_local_page(src_page);
| ^~~~~~~~~~~~~~~
include/linux/pagemap.h: In function 'memmove_page':
include/linux/pagemap.h:1047:14: warning: initialization of 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
1047 | char *dst = kmap_local_page(dst_page);
| ^~~~~~~~~~~~~~~
include/linux/pagemap.h:1048:14: warning: initialization of 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
1048 | char *src = kmap_local_page(src_page);
| ^~~~~~~~~~~~~~~
include/linux/pagemap.h: In function 'memcpy_from_page':
include/linux/pagemap.h:1056:15: warning: initialization of 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
1056 | char *from = kmap_local_page(page);
| ^~~~~~~~~~~~~~~
include/linux/pagemap.h: In function 'memcpy_to_page':
include/linux/pagemap.h:1063:13: warning: initialization of 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
1063 | char *to = kmap_local_page(page);
| ^~~~~~~~~~~~~~~
include/linux/pagemap.h: In function 'memset_page':
include/linux/pagemap.h:1070:15: warning: initialization of 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
1070 | char *addr = kmap_local_page(page);
| ^~~~~~~~~~~~~~~
drivers/char/random.c: At top level:
drivers/char/random.c:2296:6: warning: no previous prototype for 'add_hwgenerator_randomness' [-Wmissing-prototypes]
2296 | void add_hwgenerator_randomness(const char *buffer, size_t count,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
vim +1036 include/linux/pagemap.h
1031
1032 static inline void memcpy_page(struct page *dst_page, size_t dst_off,
1033 struct page *src_page, size_t src_off,
1034 size_t len)
1035 {
> 1036 char *dst = kmap_local_page(dst_page);
1037 char *src = kmap_local_page(src_page);
1038 memcpy(dst + dst_off, src + src_off, len);
1039 kunmap_local(src);
1040 kunmap_local(dst);
1041 }
1042
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 6505 bytes --]
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH V2 2/2] mm/highmem: Lift memcpy_[to|from]_page to core
[not found] <20201207225703.2033611-3-ira.weiny@intel.com>
2020-12-08 0:40 ` [PATCH V2 2/2] mm/highmem: Lift memcpy_[to|from]_page to core kernel test robot
@ 2020-12-08 1:09 ` kernel test robot
1 sibling, 0 replies; 2+ messages in thread
From: kernel test robot @ 2020-12-08 1:09 UTC (permalink / raw)
To: ira.weiny, Thomas Gleixner, Andrew Morton
Cc: kbuild-all, clang-built-linux, Linux Memory Management List,
Ira Weiny, Dave Hansen, Matthew Wilcox, Christoph Hellwig,
Dan Williams, Al Viro, Eric Biggers
[-- Attachment #1: Type: text/plain, Size: 22540 bytes --]
Hi,
I love your patch! Yet something to improve:
[auto build test ERROR on hch-configfs/for-next]
[also build test ERROR on linus/master v5.10-rc7]
[cannot apply to hnaz-linux-mm/master next-20201207]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/ira-weiny-intel-com/Lift-memcpy_-to-from-_page-to-core/20201208-070017
base: git://git.infradead.org/users/hch/configfs.git for-next
config: powerpc64-randconfig-r002-20201207 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project a2f922140f5380571fb74179f2bf622b3b925697)
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
# install powerpc64 cross compiling tool for clang build
# apt-get install binutils-powerpc64-linux-gnu
# https://github.com/0day-ci/linux/commit/23e6d3f08a315c6e70fde3d63a275c91e1dcb0ee
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review ira-weiny-intel-com/Lift-memcpy_-to-from-_page-to-core/20201208-070017
git checkout 23e6d3f08a315c6e70fde3d63a275c91e1dcb0ee
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All error/warnings (new ones prefixed by >>):
<scratch space>:223:1: note: expanded from here
__do_outsw
^
arch/powerpc/include/asm/io.h:545:58: note: expanded from macro '__do_outsw'
#define __do_outsw(p, b, n) writesw((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
~~~~~~~~~~~~~~~~~~~~~^
In file included from arch/powerpc/kernel/asm-offsets.c:23:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:10:
In file included from arch/powerpc/include/asm/hardirq.h:6:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/powerpc/include/asm/io.h:604:
arch/powerpc/include/asm/io-defs.h:53:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(outsl, (unsigned long p, const void *b, unsigned long c),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:601:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:225:1: note: expanded from here
__do_outsl
^
arch/powerpc/include/asm/io.h:546:58: note: expanded from macro '__do_outsl'
#define __do_outsl(p, b, n) writesl((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
~~~~~~~~~~~~~~~~~~~~~^
In file included from arch/powerpc/kernel/asm-offsets.c:23:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:22:
In file included from include/linux/writeback.h:14:
In file included from include/linux/blk-cgroup.h:23:
In file included from include/linux/blkdev.h:14:
In file included from include/linux/pagemap.h:11:
include/linux/highmem.h:229:15: error: implicit declaration of function 'kmap_local_page' [-Werror,-Wimplicit-function-declaration]
void *addr = kmap_local_page(page);
^
include/linux/highmem.h:229:15: note: did you mean 'kmap_to_page'?
include/linux/highmem.h:130:28: note: 'kmap_to_page' declared here
static inline struct page *kmap_to_page(void *addr)
^
include/linux/highmem.h:229:8: warning: incompatible integer to pointer conversion initializing 'void *' with an expression of type 'int' [-Wint-conversion]
void *addr = kmap_local_page(page);
^ ~~~~~~~~~~~~~~~~~~~~~
include/linux/highmem.h:231:2: error: implicit declaration of function 'kunmap_local' [-Werror,-Wimplicit-function-declaration]
kunmap_local(addr);
^
include/linux/highmem.h:282:16: error: implicit declaration of function 'kmap_local_page' [-Werror,-Wimplicit-function-declaration]
void *kaddr = kmap_local_page(page);
^
include/linux/highmem.h:282:8: warning: incompatible integer to pointer conversion initializing 'void *' with an expression of type 'int' [-Wint-conversion]
void *kaddr = kmap_local_page(page);
^ ~~~~~~~~~~~~~~~~~~~~~
include/linux/highmem.h:284:2: error: implicit declaration of function 'kunmap_local' [-Werror,-Wimplicit-function-declaration]
kunmap_local(kaddr);
^
include/linux/highmem.h:291:16: error: implicit declaration of function 'kmap_local_page' [-Werror,-Wimplicit-function-declaration]
void *kaddr = kmap_local_page(page);
^
include/linux/highmem.h:291:8: warning: incompatible integer to pointer conversion initializing 'void *' with an expression of type 'int' [-Wint-conversion]
void *kaddr = kmap_local_page(page);
^ ~~~~~~~~~~~~~~~~~~~~~
include/linux/highmem.h:301:2: error: implicit declaration of function 'kunmap_local' [-Werror,-Wimplicit-function-declaration]
kunmap_local(kaddr);
^
include/linux/highmem.h:324:10: error: implicit declaration of function 'kmap_local_page' [-Werror,-Wimplicit-function-declaration]
vfrom = kmap_local_page(from);
^
include/linux/highmem.h:324:8: warning: incompatible integer to pointer conversion assigning to 'char *' from 'int' [-Wint-conversion]
vfrom = kmap_local_page(from);
^ ~~~~~~~~~~~~~~~~~~~~~
include/linux/highmem.h:325:6: warning: incompatible integer to pointer conversion assigning to 'char *' from 'int' [-Wint-conversion]
vto = kmap_local_page(to);
^ ~~~~~~~~~~~~~~~~~~~
include/linux/highmem.h:327:2: error: implicit declaration of function 'kunmap_local' [-Werror,-Wimplicit-function-declaration]
kunmap_local(vto);
^
include/linux/highmem.h:339:10: error: implicit declaration of function 'kmap_local_page' [-Werror,-Wimplicit-function-declaration]
vfrom = kmap_local_page(from);
^
include/linux/highmem.h:339:8: warning: incompatible integer to pointer conversion assigning to 'char *' from 'int' [-Wint-conversion]
vfrom = kmap_local_page(from);
^ ~~~~~~~~~~~~~~~~~~~~~
include/linux/highmem.h:340:6: warning: incompatible integer to pointer conversion assigning to 'char *' from 'int' [-Wint-conversion]
vto = kmap_local_page(to);
^ ~~~~~~~~~~~~~~~~~~~
include/linux/highmem.h:342:2: error: implicit declaration of function 'kunmap_local' [-Werror,-Wimplicit-function-declaration]
kunmap_local(vto);
^
In file included from arch/powerpc/kernel/asm-offsets.c:23:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:22:
In file included from include/linux/writeback.h:14:
In file included from include/linux/blk-cgroup.h:23:
In file included from include/linux/blkdev.h:14:
>> include/linux/pagemap.h:1036:14: error: implicit declaration of function 'kmap_local_page' [-Werror,-Wimplicit-function-declaration]
char *dst = kmap_local_page(dst_page);
^
>> include/linux/pagemap.h:1036:8: warning: incompatible integer to pointer conversion initializing 'char *' with an expression of type 'int' [-Wint-conversion]
char *dst = kmap_local_page(dst_page);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/pagemap.h:1037:8: warning: incompatible integer to pointer conversion initializing 'char *' with an expression of type 'int' [-Wint-conversion]
char *src = kmap_local_page(src_page);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~
>> include/linux/pagemap.h:1039:2: error: implicit declaration of function 'kunmap_local' [-Werror,-Wimplicit-function-declaration]
kunmap_local(src);
^
include/linux/pagemap.h:1047:14: error: implicit declaration of function 'kmap_local_page' [-Werror,-Wimplicit-function-declaration]
char *dst = kmap_local_page(dst_page);
^
include/linux/pagemap.h:1047:8: warning: incompatible integer to pointer conversion initializing 'char *' with an expression of type 'int' [-Wint-conversion]
char *dst = kmap_local_page(dst_page);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/pagemap.h:1048:8: warning: incompatible integer to pointer conversion initializing 'char *' with an expression of type 'int' [-Wint-conversion]
char *src = kmap_local_page(src_page);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/pagemap.h:1050:2: error: implicit declaration of function 'kunmap_local' [-Werror,-Wimplicit-function-declaration]
kunmap_local(src);
^
include/linux/pagemap.h:1056:15: error: implicit declaration of function 'kmap_local_page' [-Werror,-Wimplicit-function-declaration]
char *from = kmap_local_page(page);
^
include/linux/pagemap.h:1056:8: warning: incompatible integer to pointer conversion initializing 'char *' with an expression of type 'int' [-Wint-conversion]
char *from = kmap_local_page(page);
^ ~~~~~~~~~~~~~~~~~~~~~
include/linux/pagemap.h:1058:2: error: implicit declaration of function 'kunmap_local' [-Werror,-Wimplicit-function-declaration]
kunmap_local(from);
^
include/linux/pagemap.h:1063:13: error: implicit declaration of function 'kmap_local_page' [-Werror,-Wimplicit-function-declaration]
char *to = kmap_local_page(page);
^
include/linux/pagemap.h:1063:8: warning: incompatible integer to pointer conversion initializing 'char *' with an expression of type 'int' [-Wint-conversion]
char *to = kmap_local_page(page);
^ ~~~~~~~~~~~~~~~~~~~~~
include/linux/pagemap.h:1065:2: error: implicit declaration of function 'kunmap_local' [-Werror,-Wimplicit-function-declaration]
kunmap_local(to);
^
include/linux/pagemap.h:1070:15: error: implicit declaration of function 'kmap_local_page' [-Werror,-Wimplicit-function-declaration]
char *addr = kmap_local_page(page);
^
include/linux/pagemap.h:1070:8: warning: incompatible integer to pointer conversion initializing 'char *' with an expression of type 'int' [-Wint-conversion]
char *addr = kmap_local_page(page);
^ ~~~~~~~~~~~~~~~~~~~~~
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 warnings and 20 errors generated.
--
<scratch space>:223:1: note: expanded from here
__do_outsw
^
arch/powerpc/include/asm/io.h:545:58: note: expanded from macro '__do_outsw'
#define __do_outsw(p, b, n) writesw((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
~~~~~~~~~~~~~~~~~~~~~^
In file included from arch/powerpc/kernel/asm-offsets.c:23:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:10:
In file included from arch/powerpc/include/asm/hardirq.h:6:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/powerpc/include/asm/io.h:604:
arch/powerpc/include/asm/io-defs.h:53:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(outsl, (unsigned long p, const void *b, unsigned long c),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:601:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:225:1: note: expanded from here
__do_outsl
^
arch/powerpc/include/asm/io.h:546:58: note: expanded from macro '__do_outsl'
#define __do_outsl(p, b, n) writesl((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
~~~~~~~~~~~~~~~~~~~~~^
In file included from arch/powerpc/kernel/asm-offsets.c:23:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:22:
In file included from include/linux/writeback.h:14:
In file included from include/linux/blk-cgroup.h:23:
In file included from include/linux/blkdev.h:14:
In file included from include/linux/pagemap.h:11:
include/linux/highmem.h:229:15: error: implicit declaration of function 'kmap_local_page' [-Werror,-Wimplicit-function-declaration]
void *addr = kmap_local_page(page);
^
include/linux/highmem.h:229:15: note: did you mean 'kmap_to_page'?
include/linux/highmem.h:130:28: note: 'kmap_to_page' declared here
static inline struct page *kmap_to_page(void *addr)
^
include/linux/highmem.h:229:8: warning: incompatible integer to pointer conversion initializing 'void *' with an expression of type 'int' [-Wint-conversion]
void *addr = kmap_local_page(page);
^ ~~~~~~~~~~~~~~~~~~~~~
include/linux/highmem.h:231:2: error: implicit declaration of function 'kunmap_local' [-Werror,-Wimplicit-function-declaration]
kunmap_local(addr);
^
include/linux/highmem.h:282:16: error: implicit declaration of function 'kmap_local_page' [-Werror,-Wimplicit-function-declaration]
void *kaddr = kmap_local_page(page);
^
include/linux/highmem.h:282:8: warning: incompatible integer to pointer conversion initializing 'void *' with an expression of type 'int' [-Wint-conversion]
void *kaddr = kmap_local_page(page);
^ ~~~~~~~~~~~~~~~~~~~~~
include/linux/highmem.h:284:2: error: implicit declaration of function 'kunmap_local' [-Werror,-Wimplicit-function-declaration]
kunmap_local(kaddr);
^
include/linux/highmem.h:291:16: error: implicit declaration of function 'kmap_local_page' [-Werror,-Wimplicit-function-declaration]
void *kaddr = kmap_local_page(page);
^
include/linux/highmem.h:291:8: warning: incompatible integer to pointer conversion initializing 'void *' with an expression of type 'int' [-Wint-conversion]
void *kaddr = kmap_local_page(page);
^ ~~~~~~~~~~~~~~~~~~~~~
include/linux/highmem.h:301:2: error: implicit declaration of function 'kunmap_local' [-Werror,-Wimplicit-function-declaration]
kunmap_local(kaddr);
^
include/linux/highmem.h:324:10: error: implicit declaration of function 'kmap_local_page' [-Werror,-Wimplicit-function-declaration]
vfrom = kmap_local_page(from);
^
include/linux/highmem.h:324:8: warning: incompatible integer to pointer conversion assigning to 'char *' from 'int' [-Wint-conversion]
vfrom = kmap_local_page(from);
^ ~~~~~~~~~~~~~~~~~~~~~
include/linux/highmem.h:325:6: warning: incompatible integer to pointer conversion assigning to 'char *' from 'int' [-Wint-conversion]
vto = kmap_local_page(to);
^ ~~~~~~~~~~~~~~~~~~~
include/linux/highmem.h:327:2: error: implicit declaration of function 'kunmap_local' [-Werror,-Wimplicit-function-declaration]
kunmap_local(vto);
^
include/linux/highmem.h:339:10: error: implicit declaration of function 'kmap_local_page' [-Werror,-Wimplicit-function-declaration]
vfrom = kmap_local_page(from);
^
include/linux/highmem.h:339:8: warning: incompatible integer to pointer conversion assigning to 'char *' from 'int' [-Wint-conversion]
vfrom = kmap_local_page(from);
^ ~~~~~~~~~~~~~~~~~~~~~
include/linux/highmem.h:340:6: warning: incompatible integer to pointer conversion assigning to 'char *' from 'int' [-Wint-conversion]
vto = kmap_local_page(to);
^ ~~~~~~~~~~~~~~~~~~~
include/linux/highmem.h:342:2: error: implicit declaration of function 'kunmap_local' [-Werror,-Wimplicit-function-declaration]
kunmap_local(vto);
^
In file included from arch/powerpc/kernel/asm-offsets.c:23:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:22:
In file included from include/linux/writeback.h:14:
In file included from include/linux/blk-cgroup.h:23:
In file included from include/linux/blkdev.h:14:
>> include/linux/pagemap.h:1036:14: error: implicit declaration of function 'kmap_local_page' [-Werror,-Wimplicit-function-declaration]
char *dst = kmap_local_page(dst_page);
^
>> include/linux/pagemap.h:1036:8: warning: incompatible integer to pointer conversion initializing 'char *' with an expression of type 'int' [-Wint-conversion]
char *dst = kmap_local_page(dst_page);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/pagemap.h:1037:8: warning: incompatible integer to pointer conversion initializing 'char *' with an expression of type 'int' [-Wint-conversion]
char *src = kmap_local_page(src_page);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~
>> include/linux/pagemap.h:1039:2: error: implicit declaration of function 'kunmap_local' [-Werror,-Wimplicit-function-declaration]
kunmap_local(src);
^
include/linux/pagemap.h:1047:14: error: implicit declaration of function 'kmap_local_page' [-Werror,-Wimplicit-function-declaration]
char *dst = kmap_local_page(dst_page);
^
include/linux/pagemap.h:1047:8: warning: incompatible integer to pointer conversion initializing 'char *' with an expression of type 'int' [-Wint-conversion]
char *dst = kmap_local_page(dst_page);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/pagemap.h:1048:8: warning: incompatible integer to pointer conversion initializing 'char *' with an expression of type 'int' [-Wint-conversion]
char *src = kmap_local_page(src_page);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/pagemap.h:1050:2: error: implicit declaration of function 'kunmap_local' [-Werror,-Wimplicit-function-declaration]
kunmap_local(src);
^
include/linux/pagemap.h:1056:15: error: implicit declaration of function 'kmap_local_page' [-Werror,-Wimplicit-function-declaration]
char *from = kmap_local_page(page);
^
include/linux/pagemap.h:1056:8: warning: incompatible integer to pointer conversion initializing 'char *' with an expression of type 'int' [-Wint-conversion]
char *from = kmap_local_page(page);
^ ~~~~~~~~~~~~~~~~~~~~~
include/linux/pagemap.h:1058:2: error: implicit declaration of function 'kunmap_local' [-Werror,-Wimplicit-function-declaration]
kunmap_local(from);
^
include/linux/pagemap.h:1063:13: error: implicit declaration of function 'kmap_local_page' [-Werror,-Wimplicit-function-declaration]
char *to = kmap_local_page(page);
^
include/linux/pagemap.h:1063:8: warning: incompatible integer to pointer conversion initializing 'char *' with an expression of type 'int' [-Wint-conversion]
char *to = kmap_local_page(page);
^ ~~~~~~~~~~~~~~~~~~~~~
include/linux/pagemap.h:1065:2: error: implicit declaration of function 'kunmap_local' [-Werror,-Wimplicit-function-declaration]
kunmap_local(to);
^
include/linux/pagemap.h:1070:15: error: implicit declaration of function 'kmap_local_page' [-Werror,-Wimplicit-function-declaration]
char *addr = kmap_local_page(page);
^
include/linux/pagemap.h:1070:8: warning: incompatible integer to pointer conversion initializing 'char *' with an expression of type 'int' [-Wint-conversion]
char *addr = kmap_local_page(page);
^ ~~~~~~~~~~~~~~~~~~~~~
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 warnings and 20 errors generated.
make[2]: *** [scripts/Makefile.build:117: arch/powerpc/kernel/asm-offsets.s] Error 1
make[2]: Target '__build' not remade because of errors.
make[1]: *** [Makefile:1200: prepare0] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:185: __sub-make] Error 2
make: Target 'prepare' not remade because of errors.
vim +/kmap_local_page +1036 include/linux/pagemap.h
1031
1032 static inline void memcpy_page(struct page *dst_page, size_t dst_off,
1033 struct page *src_page, size_t src_off,
1034 size_t len)
1035 {
> 1036 char *dst = kmap_local_page(dst_page);
1037 char *src = kmap_local_page(src_page);
1038 memcpy(dst + dst_off, src + src_off, len);
> 1039 kunmap_local(src);
1040 kunmap_local(dst);
1041 }
1042
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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2020-12-08 0:40 ` [PATCH V2 2/2] mm/highmem: Lift memcpy_[to|from]_page to core kernel test robot
2020-12-08 1:09 ` kernel test robot
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