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Date: Thu, 4 Nov 2021 16:48:15 +0800
From: kernel test robot <lkp@...el.com>
To: Ard Biesheuvel <ardb@...nel.org>
Cc: llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
linux-kernel@...r.kernel.org,
Russell King <rmk+kernel@...linux.org.uk>,
Linus Walleij <linus.walleij@...aro.org>
Subject: arch/arm/kernel/traps.c:775:6: warning: no previous prototype for
function 'abort'
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 7ddb58cb0ecae8e8b6181d736a87667cc9ab8389
commit: 4d576cab16f57e1f87978f6997a725179398341e ARM: 9028/1: disable KASAN in call stack capturing routines
date: 11 months ago
config: arm-randconfig-r003-20211104 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 847a6807332b13f43704327c2d30103ec0347c77)
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 arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4d576cab16f57e1f87978f6997a725179398341e
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 4d576cab16f57e1f87978f6997a725179398341e
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=arm
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
arch/arm/kernel/traps.c:82:6: warning: no previous prototype for function 'dump_backtrace_stm' [-Wmissing-prototypes]
void dump_backtrace_stm(u32 *stack, u32 instruction, const char *loglvl)
^
arch/arm/kernel/traps.c:82:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void dump_backtrace_stm(u32 *stack, u32 instruction, const char *loglvl)
^
static
arch/arm/kernel/traps.c:445:17: warning: no previous prototype for function 'do_undefinstr' [-Wmissing-prototypes]
asmlinkage void do_undefinstr(struct pt_regs *regs)
^
arch/arm/kernel/traps.c:445:12: note: declare 'static' if the function is not intended to be used outside of this translation unit
asmlinkage void do_undefinstr(struct pt_regs *regs)
^
static
arch/arm/kernel/traps.c:510:39: warning: no previous prototype for function 'handle_fiq_as_nmi' [-Wmissing-prototypes]
asmlinkage void __exception_irq_entry handle_fiq_as_nmi(struct pt_regs *regs)
^
arch/arm/kernel/traps.c:510:12: note: declare 'static' if the function is not intended to be used outside of this translation unit
asmlinkage void __exception_irq_entry handle_fiq_as_nmi(struct pt_regs *regs)
^
static
arch/arm/kernel/traps.c:529:17: warning: no previous prototype for function 'bad_mode' [-Wmissing-prototypes]
asmlinkage void bad_mode(struct pt_regs *regs, int reason)
^
arch/arm/kernel/traps.c:529:12: note: declare 'static' if the function is not intended to be used outside of this translation unit
asmlinkage void bad_mode(struct pt_regs *regs, int reason)
^
static
arch/arm/kernel/traps.c:602:16: warning: no previous prototype for function 'arm_syscall' [-Wmissing-prototypes]
asmlinkage int arm_syscall(int no, struct pt_regs *regs)
^
arch/arm/kernel/traps.c:602:12: note: declare 'static' if the function is not intended to be used outside of this translation unit
asmlinkage int arm_syscall(int no, struct pt_regs *regs)
^
static
arch/arm/kernel/traps.c:728:1: warning: no previous prototype for function 'baddataabort' [-Wmissing-prototypes]
baddataabort(int code, unsigned long instr, struct pt_regs *regs)
^
arch/arm/kernel/traps.c:727:12: note: declare 'static' if the function is not intended to be used outside of this translation unit
asmlinkage void
^
static
arch/arm/kernel/traps.c:768:17: warning: no previous prototype for function '__div0' [-Wmissing-prototypes]
asmlinkage void __div0(void)
^
arch/arm/kernel/traps.c:768:12: note: declare 'static' if the function is not intended to be used outside of this translation unit
asmlinkage void __div0(void)
^
static
>> arch/arm/kernel/traps.c:775:6: warning: no previous prototype for function 'abort' [-Wmissing-prototypes]
void abort(void)
^
arch/arm/kernel/traps.c:775:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void abort(void)
^
static
arch/arm/kernel/traps.c:783:13: warning: no previous prototype for function 'trap_init' [-Wmissing-prototypes]
void __init trap_init(void)
^
arch/arm/kernel/traps.c:783:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void __init trap_init(void)
^
static
9 warnings generated.
vim +/abort +775 arch/arm/kernel/traps.c
^1da177e4c3f415 Linus Torvalds 2005-04-16 774
^1da177e4c3f415 Linus Torvalds 2005-04-16 @775 void abort(void)
^1da177e4c3f415 Linus Torvalds 2005-04-16 776 {
^1da177e4c3f415 Linus Torvalds 2005-04-16 777 BUG();
^1da177e4c3f415 Linus Torvalds 2005-04-16 778
^1da177e4c3f415 Linus Torvalds 2005-04-16 779 /* if that doesn't kill us, halt */
^1da177e4c3f415 Linus Torvalds 2005-04-16 780 panic("Oops failed to kill thread");
^1da177e4c3f415 Linus Torvalds 2005-04-16 781 }
^1da177e4c3f415 Linus Torvalds 2005-04-16 782
:::::: The code at line 775 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2
:::::: TO: Linus Torvalds <torvalds@...970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@...970.osdl.org>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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