* [mark-rutland:arm64/entry-deasm-new 18/25] arch/arm64/kernel/entry-common.c:34:17: warning: no previous prototype for 'do_notify_resume'
@ 2020-08-06 20:59 kernel test robot
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From: kernel test robot @ 2020-08-06 20:59 UTC (permalink / raw)
To: kbuild-all
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git arm64/entry-deasm-new
head: 6b2f792068b31c949e04432af560cb18b0430880
commit: 1e1c052e17dae6864c0cba7dbd5106fed9e8c4b1 [18/25] arm64: entry: move do_notify_resume() to entry-common.c
config: arm64-randconfig-r024-20200805 (attached as .config)
compiler: aarch64-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
git checkout 1e1c052e17dae6864c0cba7dbd5106fed9e8c4b1
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64
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 >>):
>> arch/arm64/kernel/entry-common.c:34:17: warning: no previous prototype for 'do_notify_resume' [-Wmissing-prototypes]
34 | asmlinkage void do_notify_resume(struct pt_regs *regs,
| ^~~~~~~~~~~~~~~~
arch/arm64/kernel/entry-common.c:97:25: warning: no previous prototype for 'prepare_ret_from_fork' [-Wmissing-prototypes]
97 | asmlinkage void notrace prepare_ret_from_fork(void)
| ^~~~~~~~~~~~~~~~~~~~~
arch/arm64/kernel/entry-common.c:159:13: warning: no previous prototype for 'el1_sync_handler' [-Wmissing-prototypes]
159 | EL1_HANDLER(el1_sync_handler, regs)
| ^~~~~~~~~~~~~~~~
arch/arm64/kernel/entry-common.c:106:25: note: in definition of macro 'ELx_HANDLER'
106 | asmlinkage void notrace name(struct pt_regs *regs) \
| ^~~~
arch/arm64/kernel/entry-common.c:159:1: note: in expansion of macro 'EL1_HANDLER'
159 | EL1_HANDLER(el1_sync_handler, regs)
| ^~~~~~~~~~~
arch/arm64/kernel/entry-common.c:313:13: warning: no previous prototype for 'el0_sync_handler' [-Wmissing-prototypes]
313 | EL0_HANDLER(el0_sync_handler, regs)
| ^~~~~~~~~~~~~~~~
arch/arm64/kernel/entry-common.c:106:25: note: in definition of macro 'ELx_HANDLER'
106 | asmlinkage void notrace name(struct pt_regs *regs) \
| ^~~~
arch/arm64/kernel/entry-common.c:313:1: note: in expansion of macro 'EL0_HANDLER'
313 | EL0_HANDLER(el0_sync_handler, regs)
| ^~~~~~~~~~~
arch/arm64/kernel/entry-common.c:451:13: warning: no previous prototype for 'el1_irq_handler' [-Wmissing-prototypes]
451 | EL1_HANDLER(el1_irq_handler, regs)
| ^~~~~~~~~~~~~~~
arch/arm64/kernel/entry-common.c:106:25: note: in definition of macro 'ELx_HANDLER'
106 | asmlinkage void notrace name(struct pt_regs *regs) \
| ^~~~
arch/arm64/kernel/entry-common.c:451:1: note: in expansion of macro 'EL1_HANDLER'
451 | EL1_HANDLER(el1_irq_handler, regs)
| ^~~~~~~~~~~
arch/arm64/kernel/entry-common.c:468:13: warning: no previous prototype for 'el0_irq_handler' [-Wmissing-prototypes]
468 | EL0_HANDLER(el0_irq_handler, regs)
| ^~~~~~~~~~~~~~~
arch/arm64/kernel/entry-common.c:106:25: note: in definition of macro 'ELx_HANDLER'
106 | asmlinkage void notrace name(struct pt_regs *regs) \
| ^~~~
arch/arm64/kernel/entry-common.c:468:1: note: in expansion of macro 'EL0_HANDLER'
468 | EL0_HANDLER(el0_irq_handler, regs)
| ^~~~~~~~~~~
arch/arm64/kernel/entry-common.c:478:13: warning: no previous prototype for 'el1_error_handler' [-Wmissing-prototypes]
478 | EL1_HANDLER(el1_error_handler, regs)
| ^~~~~~~~~~~~~~~~~
arch/arm64/kernel/entry-common.c:106:25: note: in definition of macro 'ELx_HANDLER'
106 | asmlinkage void notrace name(struct pt_regs *regs) \
| ^~~~
arch/arm64/kernel/entry-common.c:478:1: note: in expansion of macro 'EL1_HANDLER'
478 | EL1_HANDLER(el1_error_handler, regs)
| ^~~~~~~~~~~
arch/arm64/kernel/entry-common.c:486:13: warning: no previous prototype for 'el0_error_handler' [-Wmissing-prototypes]
486 | EL0_HANDLER(el0_error_handler, regs)
| ^~~~~~~~~~~~~~~~~
arch/arm64/kernel/entry-common.c:106:25: note: in definition of macro 'ELx_HANDLER'
106 | asmlinkage void notrace name(struct pt_regs *regs) \
| ^~~~
arch/arm64/kernel/entry-common.c:486:1: note: in expansion of macro 'EL0_HANDLER'
486 | EL0_HANDLER(el0_error_handler, regs)
| ^~~~~~~~~~~
vim +/do_notify_resume +34 arch/arm64/kernel/entry-common.c
33
> 34 asmlinkage void do_notify_resume(struct pt_regs *regs,
35 unsigned long thread_flags)
36 {
37 /*
38 * The assembly code enters us with IRQs off, but it hasn't
39 * informed the tracing code of that for efficiency reasons.
40 * Update the trace code with the current status.
41 */
42 trace_hardirqs_off();
43
44 do {
45 /* Check valid user FS if needed */
46 addr_limit_user_check();
47
48 if (thread_flags & _TIF_NEED_RESCHED) {
49 /* Unmask Debug and SError for the next task */
50 local_daif_restore(DAIF_PROCCTX_NOIRQ);
51
52 schedule();
53 } else {
54 local_daif_restore(DAIF_PROCCTX);
55
56 if (thread_flags & _TIF_UPROBE)
57 uprobe_notify_resume(regs);
58
59 if (thread_flags & _TIF_SIGPENDING)
60 do_signal(regs);
61
62 if (thread_flags & _TIF_NOTIFY_RESUME) {
63 clear_thread_flag(TIF_NOTIFY_RESUME);
64 tracehook_notify_resume(regs);
65 rseq_handle_notify_resume(NULL, regs);
66 }
67
68 if (thread_flags & _TIF_FOREIGN_FPSTATE)
69 fpsimd_restore_current_state();
70 }
71
72 local_daif_mask();
73 thread_flags = READ_ONCE(current_thread_info()->flags);
74 } while (thread_flags & _TIF_WORK_MASK);
75 }
76
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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2020-08-06 20:59 [mark-rutland:arm64/entry-deasm-new 18/25] arch/arm64/kernel/entry-common.c:34:17: warning: no previous prototype for 'do_notify_resume' kernel test robot
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