* [madvenka786:orc_v3 20/21] kernel/trace/ftrace.c:2766:13: error: redefinition of 'ftrace_instruction_pointer_set'
@ 2023-01-20 10:21 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2023-01-20 10:21 UTC (permalink / raw)
To: Madhavan T. Venkataraman; +Cc: llvm, oe-kbuild-all, Suraj Jitindar Singh
tree: https://github.com/madvenka786/linux orc_v3
head: a0c212ed0823caa5a7ec431d3a5ec07b46964384
commit: 1fabd84ba1fcc2dffd5d1c9cdb4844f780947738 [20/21] arm64: Miscellaneous changes required for enabling livepatch
config: s390-randconfig-r044-20230119 (https://download.01.org/0day-ci/archive/20230120/202301201855.2M51dYdX-lkp@intel.com/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 4196ca3278f78c6e19246e54ab0ecb364e37d66a)
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 s390 cross compiling tool for clang build
# apt-get install binutils-s390x-linux-gnu
# https://github.com/madvenka786/linux/commit/1fabd84ba1fcc2dffd5d1c9cdb4844f780947738
git remote add madvenka786 https://github.com/madvenka786/linux
git fetch --no-tags madvenka786 orc_v3
git checkout 1fabd84ba1fcc2dffd5d1c9cdb4844f780947738
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
In file included from kernel/trace/ftrace.c:18:
In file included from include/linux/clocksource.h:22:
In file included from arch/s390/include/asm/io.h:75:
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/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
^
include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16'
#define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
^
In file included from kernel/trace/ftrace.c:18:
In file included from include/linux/clocksource.h:22:
In file included from arch/s390/include/asm/io.h:75:
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/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32'
#define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
^
In file included from kernel/trace/ftrace.c:18:
In file included from include/linux/clocksource.h:22:
In file included from arch/s390/include/asm/io.h:75:
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);
~~~~~~~~~~ ^
include/asm-generic/io.h:692:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:700:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:708:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:717:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:726:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:735:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
kernel/trace/ftrace.c:299:5: warning: no previous prototype for function '__register_ftrace_function' [-Wmissing-prototypes]
int __register_ftrace_function(struct ftrace_ops *ops)
^
kernel/trace/ftrace.c:299:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int __register_ftrace_function(struct ftrace_ops *ops)
^
static
kernel/trace/ftrace.c:342:5: warning: no previous prototype for function '__unregister_ftrace_function' [-Wmissing-prototypes]
int __unregister_ftrace_function(struct ftrace_ops *ops)
^
kernel/trace/ftrace.c:342:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int __unregister_ftrace_function(struct ftrace_ops *ops)
^
static
kernel/trace/ftrace.c:2766:6: warning: attribute declaration must precede definition [-Wignored-attributes]
void __weak ftrace_instruction_pointer_set(struct ftrace_regs *fregs,
^
include/linux/compiler_attributes.h:373:56: note: expanded from macro '__weak'
#define __weak __attribute__((__weak__))
^
arch/s390/include/asm/ftrace.h:57:29: note: previous definition is here
static __always_inline void ftrace_instruction_pointer_set(struct ftrace_regs *fregs,
^
>> kernel/trace/ftrace.c:2766:13: error: redefinition of 'ftrace_instruction_pointer_set'
void __weak ftrace_instruction_pointer_set(struct ftrace_regs *fregs,
^
arch/s390/include/asm/ftrace.h:57:29: note: previous definition is here
static __always_inline void ftrace_instruction_pointer_set(struct ftrace_regs *fregs,
^
kernel/trace/ftrace.c:4004:15: warning: no previous prototype for function 'arch_ftrace_match_adjust' [-Wmissing-prototypes]
char * __weak arch_ftrace_match_adjust(char *str, const char *search)
^
kernel/trace/ftrace.c:4004:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
char * __weak arch_ftrace_match_adjust(char *str, const char *search)
^
static
16 warnings and 1 error generated.
vim +/ftrace_instruction_pointer_set +2766 kernel/trace/ftrace.c
2765
> 2766 void __weak ftrace_instruction_pointer_set(struct ftrace_regs *fregs,
2767 unsigned long pc)
2768 {
2769 }
2770
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
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