Re: [PATCH 1/1] bug: fix problem including <linux.bug.h> from linux/kernel.h

From: kbuild test robot
Date: Wed May 24 2017 - 22:25:56 EST

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Hi Ian,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.12-rc2 next-20170524]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Ian-Abbott/bug-fix-problem-including-linux-bug-h-from-linux-kernel-h/20170525-081427
config: i386-randconfig-c0-05250844 (attached as .config)
compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4
reproduce:
# save the attached .config to linux build tree
make ARCH=i386

All errors (new ones prefixed by >>):

In file included from arch/x86/include/asm/bug.h:81:0,
from include/linux/bug.h:4,
from include/linux/jump_label.h:184,
from arch/x86//kernel/jump_label.c:7:
include/asm-generic/bug.h:101:35: warning: 'struct pt_regs' declared inside parameter list
struct pt_regs *regs, struct warn_args *args);
^
include/asm-generic/bug.h:101:35: warning: its scope is only this definition or declaration, which is probably not what you want
In file included from include/uapi/linux/stddef.h:1:0,
from include/linux/stddef.h:4,
from include/uapi/linux/posix_types.h:4,
from include/uapi/linux/types.h:13,
from include/linux/types.h:5,
from include/linux/jump_label.h:79,
from arch/x86//kernel/jump_label.c:7:
include/linux/jump_label.h: In function 'static_key_slow_inc':
>> include/linux/compiler.h:127:18: error: implicit declaration of function 'printk' [-Werror=implicit-function-declaration]
static struct ftrace_likely_data \
^
include/linux/compiler.h:150:24: note: in expansion of macro '__branch_check__'
# define unlikely(x) (__branch_check__(x, 0, __builtin_constant_p(x)))
^
include/asm-generic/bug.h:115:6: note: in expansion of macro 'unlikely'
if (unlikely(__ret_warn_on)) \
^
include/linux/jump_label.h:84:32: note: in expansion of macro 'WARN'
#define STATIC_KEY_CHECK_USE() WARN(!static_key_initialized, \
^
include/linux/jump_label.h:212:2: note: in expansion of macro 'STATIC_KEY_CHECK_USE'
STATIC_KEY_CHECK_USE();
^
In file included from include/linux/bug.h:4:0,
from include/linux/jump_label.h:184,
from arch/x86//kernel/jump_label.c:7:
include/asm-generic/bug.h:91:32: error: 'TAINT_WARN' undeclared (first use in this function)
#define __WARN() __WARN_TAINT(TAINT_WARN)
^
arch/x86/include/asm/bug.h:46:10: note: in definition of macro '_BUG_FLAGS'
"i" (flags), \
^
include/asm-generic/bug.h:60:30: note: in expansion of macro '__WARN_FLAGS'
#define __WARN_TAINT(taint) __WARN_FLAGS(BUGFLAG_TAINT(taint))
^
include/asm-generic/bug.h:60:43: note: in expansion of macro 'BUGFLAG_TAINT'
#define __WARN_TAINT(taint) __WARN_FLAGS(BUGFLAG_TAINT(taint))
^
include/asm-generic/bug.h:91:19: note: in expansion of macro '__WARN_TAINT'
#define __WARN() __WARN_TAINT(TAINT_WARN)
^
include/asm-generic/bug.h:92:49: note: in expansion of macro '__WARN'
#define __WARN_printf(arg...) do { printk(arg); __WARN(); } while (0)
^
include/asm-generic/bug.h:116:3: note: in expansion of macro '__WARN_printf'
__WARN_printf(format); \
^
include/linux/jump_label.h:84:32: note: in expansion of macro 'WARN'
#define STATIC_KEY_CHECK_USE() WARN(!static_key_initialized, \
^
include/linux/jump_label.h:212:2: note: in expansion of macro 'STATIC_KEY_CHECK_USE'
STATIC_KEY_CHECK_USE();
^
include/asm-generic/bug.h:91:32: note: each undeclared identifier is reported only once for each function it appears in
#define __WARN() __WARN_TAINT(TAINT_WARN)
^
arch/x86/include/asm/bug.h:46:10: note: in definition of macro '_BUG_FLAGS'
"i" (flags), \
^
include/asm-generic/bug.h:60:30: note: in expansion of macro '__WARN_FLAGS'
#define __WARN_TAINT(taint) __WARN_FLAGS(BUGFLAG_TAINT(taint))
^
include/asm-generic/bug.h:60:43: note: in expansion of macro 'BUGFLAG_TAINT'
#define __WARN_TAINT(taint) __WARN_FLAGS(BUGFLAG_TAINT(taint))
^
include/asm-generic/bug.h:91:19: note: in expansion of macro '__WARN_TAINT'
#define __WARN() __WARN_TAINT(TAINT_WARN)
^
include/asm-generic/bug.h:92:49: note: in expansion of macro '__WARN'
#define __WARN_printf(arg...) do { printk(arg); __WARN(); } while (0)
^
include/asm-generic/bug.h:116:3: note: in expansion of macro '__WARN_printf'
__WARN_printf(format); \
^
include/linux/jump_label.h:84:32: note: in expansion of macro 'WARN'
#define STATIC_KEY_CHECK_USE() WARN(!static_key_initialized, \
^
include/linux/jump_label.h:212:2: note: in expansion of macro 'STATIC_KEY_CHECK_USE'
STATIC_KEY_CHECK_USE();
^
include/linux/jump_label.h: In function 'static_key_slow_dec':
include/asm-generic/bug.h:91:32: error: 'TAINT_WARN' undeclared (first use in this function)
#define __WARN() __WARN_TAINT(TAINT_WARN)
^
arch/x86/include/asm/bug.h:46:10: note: in definition of macro '_BUG_FLAGS'
"i" (flags), \
^
include/asm-generic/bug.h:60:30: note: in expansion of macro '__WARN_FLAGS'
#define __WARN_TAINT(taint) __WARN_FLAGS(BUGFLAG_TAINT(taint))
^
include/asm-generic/bug.h:60:43: note: in expansion of macro 'BUGFLAG_TAINT'
#define __WARN_TAINT(taint) __WARN_FLAGS(BUGFLAG_TAINT(taint))
^
include/asm-generic/bug.h:91:19: note: in expansion of macro '__WARN_TAINT'
#define __WARN() __WARN_TAINT(TAINT_WARN)
^
include/asm-generic/bug.h:92:49: note: in expansion of macro '__WARN'
#define __WARN_printf(arg...) do { printk(arg); __WARN(); } while (0)
^
include/asm-generic/bug.h:116:3: note: in expansion of macro '__WARN_printf'
__WARN_printf(format); \
^
include/linux/jump_label.h:84:32: note: in expansion of macro 'WARN'
#define STATIC_KEY_CHECK_USE() WARN(!static_key_initialized, \
^
include/linux/jump_label.h:218:2: note: in expansion of macro 'STATIC_KEY_CHECK_USE'
STATIC_KEY_CHECK_USE();
^
include/linux/jump_label.h: In function 'static_key_enable':

vim +/printk +127 include/linux/compiler.h

1f0d69a9 Steven Rostedt 2008-11-12 121
1f0d69a9 Steven Rostedt 2008-11-12 122 #define likely_notrace(x) __builtin_expect(!!(x), 1)
1f0d69a9 Steven Rostedt 2008-11-12 123 #define unlikely_notrace(x) __builtin_expect(!!(x), 0)
1f0d69a9 Steven Rostedt 2008-11-12 124
d45ae1f7 Steven Rostedt (VMware 2017-01-17 125) #define __branch_check__(x, expect, is_constant) ({ \
1f0d69a9 Steven Rostedt 2008-11-12 126 int ______r; \
134e6a03 Steven Rostedt (VMware 2017-01-19 @127) static struct ftrace_likely_data \
1f0d69a9 Steven Rostedt 2008-11-12 128 __attribute__((__aligned__(4))) \
45b79749 Steven Rostedt 2008-11-21 129 __attribute__((section("_ftrace_annotated_branch"))) \
1f0d69a9 Steven Rostedt 2008-11-12 130 ______f = { \

:::::: The code at line 127 was first introduced by commit
:::::: 134e6a034cb004ed5acd3048792de70ced1c6cf5 tracing: Show number of constants profiled in likely profiler

:::::: TO: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>
:::::: CC: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>

---
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Next message: Dmitry Torokhov: "Re: [PATCH 5/6] kmod: preempt on kmod_umh_threads_get()"
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