On 01/12/2022 08:10, Jeff Layton wrote:
On Thu, 2022-12-01 at 04:08 +0800, kernel test robot wrote:
tree: https://github.com/ceph/ceph-client.git testing
head: 6a6f71f4a4a945600943c2ce926f7b4174f75c0d
commit: 8c552db6d9d144857f755a156b10de0b848a9de8 [1/4] [DO NOT MERGE] filelock: new helper: vfs_inode_has_locks
config: hexagon-randconfig-r041-20221128
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 6e4cea55f0d1104408b26ac574566a0e4de48036)
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/ceph/ceph-client/commit/8c552db6d9d144857f755a156b10de0b848a9de8
git remote add ceph-client https://github.com/ceph/ceph-client.git
git fetch --no-tags ceph-client testing
git checkout 8c552db6d9d144857f755a156b10de0b848a9de8
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon prepare
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@xxxxxxxxx>
All errors (new ones prefixed by >>):
In file included from arch/hexagon/kernel/asm-offsets.c:12:
In file included from include/linux/compat.h:17:
include/linux/fs.h:1342:20: error: static declaration of 'vfs_inode_has_locks' follows non-static declaration
static inline bool vfs_inode_has_locks(struct inode *inode)
^
include/linux/fs.h:1173:6: note: previous declaration is here
bool vfs_inode_has_locks(struct inode *inode);
^
I'm really confused here.
The non-static declaration is inside an #ifdef CONFIG_FILE_LOCKING
block, and the static inline definition is in the #else block just
after. How is it possible for them to conflict? Is the preprocessor
borked or something?
FWIW, I was able to build kernels on x86_64 with CONFIG_FILE_LOCKING
both enabled and disabled. I'm not seeing the same problem there.
I think it's my fault.
I just pick the new section to patch to the current commit. I do it
again by using the whole patch.
- Xiubo
In file included from arch/hexagon/kernel/asm-offsets.c:15:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __raw_readb(PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
^
In file included from arch/hexagon/kernel/asm-offsets.c:15:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
^
In file included from arch/hexagon/kernel/asm-offsets.c:15:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writeb(value, PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
6 warnings and 1 error generated.
make[2]: *** [scripts/Makefile.build:118: arch/hexagon/kernel/asm-offsets.s] Error 1
make[2]: Target 'prepare' not remade because of errors.
make[1]: *** [Makefile:1270: prepare0] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:231: __sub-make] Error 2
make: Target 'prepare' not remade because of errors.
vim +/vfs_inode_has_locks +1342 include/linux/fs.h
1341
1342 static inline bool vfs_inode_has_locks(struct inode *inode)
1343 {
1344 return false;
1345 }
1346
