[linux-stable-rc:linux-5.10.y 749/1625] arch/powerpc/kernel/sys_ppc32.c:94:16: error: no previous prototype for function 'compat_sys_ftruncate64'
From: kernel test robot
Date: Fri Aug 13 2021 - 09:44:28 EST
tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.10.y
head: 81212a8abbf61ea75f691938b24d57cc1633e11c
commit: a024e88f8ab79a7b7e15337096d4f5f77edc6a49 [749/1625] powerpc/barrier: Avoid collision with clang's __lwsync macro
config: powerpc-randconfig-r035-20210813 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 62df4df41c939205b2dc0a2a3bfb75b8c1ed74fa)
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 powerpc cross compiling tool for clang build
# apt-get install binutils-powerpc-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/commit/?id=a024e88f8ab79a7b7e15337096d4f5f77edc6a49
git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
git fetch --no-tags linux-stable-rc linux-5.10.y
git checkout a024e88f8ab79a7b7e15337096d4f5f77edc6a49
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Note: the linux-stable-rc/linux-5.10.y HEAD 81212a8abbf61ea75f691938b24d57cc1633e11c builds fine.
It only hurts bisectibility.
All errors (new ones prefixed by >>):
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:49:1: error: performing pointer arithmetic on a null pointer has undefined behavior [-Werror,-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(outsb, (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>:181:1: note: expanded from here
__do_outsb
^
arch/powerpc/include/asm/io.h:544:58: note: expanded from macro '__do_outsb'
#define __do_outsb(p, b, n) writesb((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
~~~~~~~~~~~~~~~~~~~~~^
In file included from arch/powerpc/kernel/sys_ppc32.c:30:
In file included from include/linux/syscalls.h:84:
In file included from include/trace/syscall.h:7:
In file included from include/linux/trace_events.h:9:
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:51:1: error: performing pointer arithmetic on a null pointer has undefined behavior [-Werror,-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(outsw, (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>:183:1: 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/sys_ppc32.c:30:
In file included from include/linux/syscalls.h:84:
In file included from include/trace/syscall.h:7:
In file included from include/linux/trace_events.h:9:
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: error: performing pointer arithmetic on a null pointer has undefined behavior [-Werror,-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>:185:1: 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))
~~~~~~~~~~~~~~~~~~~~~^
arch/powerpc/kernel/sys_ppc32.c:51:15: error: no previous prototype for function 'compat_sys_mmap2' [-Werror,-Wmissing-prototypes]
unsigned long compat_sys_mmap2(unsigned long addr, size_t len,
^
arch/powerpc/kernel/sys_ppc32.c:51:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
unsigned long compat_sys_mmap2(unsigned long addr, size_t len,
^
static
arch/powerpc/kernel/sys_ppc32.c:64:16: error: no previous prototype for function 'compat_sys_pread64' [-Werror,-Wmissing-prototypes]
compat_ssize_t compat_sys_pread64(unsigned int fd, char __user *ubuf, compat_size_t count,
^
arch/powerpc/kernel/sys_ppc32.c:64:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
compat_ssize_t compat_sys_pread64(unsigned int fd, char __user *ubuf, compat_size_t count,
^
static
arch/powerpc/kernel/sys_ppc32.c:70:16: error: no previous prototype for function 'compat_sys_pwrite64' [-Werror,-Wmissing-prototypes]
compat_ssize_t compat_sys_pwrite64(unsigned int fd, const char __user *ubuf, compat_size_t count,
^
arch/powerpc/kernel/sys_ppc32.c:70:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
compat_ssize_t compat_sys_pwrite64(unsigned int fd, const char __user *ubuf, compat_size_t count,
^
static
arch/powerpc/kernel/sys_ppc32.c:76:16: error: no previous prototype for function 'compat_sys_readahead' [-Werror,-Wmissing-prototypes]
compat_ssize_t compat_sys_readahead(int fd, u32 r4, u32 offhi, u32 offlo, u32 count)
^
arch/powerpc/kernel/sys_ppc32.c:76:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
compat_ssize_t compat_sys_readahead(int fd, u32 r4, u32 offhi, u32 offlo, u32 count)
^
static
arch/powerpc/kernel/sys_ppc32.c:81:16: error: no previous prototype for function 'compat_sys_truncate64' [-Werror,-Wmissing-prototypes]
asmlinkage int compat_sys_truncate64(const char __user * path, u32 reg4,
^
arch/powerpc/kernel/sys_ppc32.c:81:12: note: declare 'static' if the function is not intended to be used outside of this translation unit
asmlinkage int compat_sys_truncate64(const char __user * path, u32 reg4,
^
static
arch/powerpc/kernel/sys_ppc32.c:87:17: error: no previous prototype for function 'compat_sys_fallocate' [-Werror,-Wmissing-prototypes]
asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo,
^
arch/powerpc/kernel/sys_ppc32.c:87:12: note: declare 'static' if the function is not intended to be used outside of this translation unit
asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo,
^
static
>> arch/powerpc/kernel/sys_ppc32.c:94:16: error: no previous prototype for function 'compat_sys_ftruncate64' [-Werror,-Wmissing-prototypes]
asmlinkage int compat_sys_ftruncate64(unsigned int fd, u32 reg4, unsigned long high,
^
arch/powerpc/kernel/sys_ppc32.c:94:12: note: declare 'static' if the function is not intended to be used outside of this translation unit
asmlinkage int compat_sys_ftruncate64(unsigned int fd, u32 reg4, unsigned long high,
^
static
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
vim +/compat_sys_ftruncate64 +94 arch/powerpc/kernel/sys_ppc32.c
^1da177e4c3f41 arch/ppc64/kernel/sys_ppc32.c Linus Torvalds 2005-04-16 86
97ac73506c0ba9 arch/powerpc/kernel/sys_ppc32.c Amit Arora 2007-07-17 @87 asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo,
97ac73506c0ba9 arch/powerpc/kernel/sys_ppc32.c Amit Arora 2007-07-17 88 u32 lenhi, u32 lenlo)
97ac73506c0ba9 arch/powerpc/kernel/sys_ppc32.c Amit Arora 2007-07-17 89 {
edf292c76b884a arch/powerpc/kernel/sys_ppc32.c Dominik Brodowski 2018-03-19 90 return ksys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo,
97ac73506c0ba9 arch/powerpc/kernel/sys_ppc32.c Amit Arora 2007-07-17 91 ((loff_t)lenhi << 32) | lenlo);
97ac73506c0ba9 arch/powerpc/kernel/sys_ppc32.c Amit Arora 2007-07-17 92 }
97ac73506c0ba9 arch/powerpc/kernel/sys_ppc32.c Amit Arora 2007-07-17 93
b09a4913b15d25 arch/powerpc/kernel/sys_ppc32.c Stephen Rothwell 2005-10-18 @94 asmlinkage int compat_sys_ftruncate64(unsigned int fd, u32 reg4, unsigned long high,
^1da177e4c3f41 arch/ppc64/kernel/sys_ppc32.c Linus Torvalds 2005-04-16 95 unsigned long low)
^1da177e4c3f41 arch/ppc64/kernel/sys_ppc32.c Linus Torvalds 2005-04-16 96 {
411d9475cf901b arch/powerpc/kernel/sys_ppc32.c Dominik Brodowski 2018-03-11 97 return ksys_ftruncate(fd, (high << 32) | low);
^1da177e4c3f41 arch/ppc64/kernel/sys_ppc32.c Linus Torvalds 2005-04-16 98 }
^1da177e4c3f41 arch/ppc64/kernel/sys_ppc32.c Linus Torvalds 2005-04-16 99
:::::: The code at line 94 was first introduced by commit
:::::: b09a4913b15d2544f8918f05b9937cb4e99a2319 powerpc: change sys32_ to compat_sys_
:::::: TO: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
:::::: CC: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
---
0-DAY CI Kernel Test Service, Intel Corporation
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