Re: [PATCH 2/2] tty/sysrq: Add configurable handler to execute a compound action

From: kernel test robot
Date: Wed Sep 29 2021 - 18:32:11 EST

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Hi Andrzej,

I love your patch! Yet something to improve:

[auto build test ERROR on bcf876870b95592b52519ed4aafcf9d95999bc9c]

url: https://github.com/0day-ci/linux/commits/Andrzej-Pietrasiewicz/Add-configurable-handler-to-execute-a-compound-action/20210929-183114
base: bcf876870b95592b52519ed4aafcf9d95999bc9c
config: um-x86_64_defconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
# https://github.com/0day-ci/linux/commit/c2e145de22842a121477d2c3dbe2bca210434138
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Andrzej-Pietrasiewicz/Add-configurable-handler-to-execute-a-compound-action/20210929-183114
git checkout c2e145de22842a121477d2c3dbe2bca210434138
# save the attached .config to linux build tree
mkdir build_dir
make W=1 O=build_dir ARCH=um SUBARCH=x86_64 SHELL=/bin/bash drivers/tty/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All error/warnings (new ones prefixed by >>):

cc1: warning: arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs]
>> drivers/tty/sysrq.c:1159:1: error: expected identifier or '(' before '{' token
1159 | {
| ^
drivers/tty/sysrq.c: In function 'sysrq_action_compound':
>> drivers/tty/sysrq.c:1164:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
1164 | {
| ^
drivers/tty/sysrq.c:1168:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
1168 | {
| ^
drivers/tty/sysrq.c:1174:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
1174 | {
| ^
In file included from include/linux/linkage.h:7,
from include/linux/kernel.h:8,
from include/linux/list.h:9,
from include/linux/rculist.h:10,
from include/linux/sched/signal.h:5,
from drivers/tty/sysrq.c:18:
>> drivers/tty/sysrq.c:1188:19: error: storage class specified for parameter 'sysrq_toggle_support'
1188 | EXPORT_SYMBOL_GPL(sysrq_toggle_support);
| ^~~~~~~~~~~~~~~~~~~~
include/linux/export.h:98:21: note: in definition of macro '___EXPORT_SYMBOL'
98 | extern typeof(sym) sym; \
| ^~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:159:33: note: in expansion of macro '_EXPORT_SYMBOL'
159 | #define EXPORT_SYMBOL_GPL(sym) _EXPORT_SYMBOL(sym, "_gpl")
| ^~~~~~~~~~~~~~
drivers/tty/sysrq.c:1188:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
1188 | EXPORT_SYMBOL_GPL(sysrq_toggle_support);
| ^~~~~~~~~~~~~~~~~
>> include/linux/export.h:99:20: error: storage class specified for parameter '__kstrtab_sysrq_toggle_support'
99 | extern const char __kstrtab_##sym[]; \
| ^~~~~~~~~~
include/linux/export.h:147:39: note: in expansion of macro '___EXPORT_SYMBOL'
147 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns)
| ^~~~~~~~~~~~~~~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:159:33: note: in expansion of macro '_EXPORT_SYMBOL'
159 | #define EXPORT_SYMBOL_GPL(sym) _EXPORT_SYMBOL(sym, "_gpl")
| ^~~~~~~~~~~~~~
drivers/tty/sysrq.c:1188:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
1188 | EXPORT_SYMBOL_GPL(sysrq_toggle_support);
| ^~~~~~~~~~~~~~~~~
>> include/linux/export.h:100:20: error: storage class specified for parameter '__kstrtabns_sysrq_toggle_support'
100 | extern const char __kstrtabns_##sym[]; \
| ^~~~~~~~~~~~
include/linux/export.h:147:39: note: in expansion of macro '___EXPORT_SYMBOL'
147 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns)
| ^~~~~~~~~~~~~~~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:159:33: note: in expansion of macro '_EXPORT_SYMBOL'
159 | #define EXPORT_SYMBOL_GPL(sym) _EXPORT_SYMBOL(sym, "_gpl")
| ^~~~~~~~~~~~~~
drivers/tty/sysrq.c:1188:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
1188 | EXPORT_SYMBOL_GPL(sysrq_toggle_support);
| ^~~~~~~~~~~~~~~~~
>> include/linux/export.h:101:24: error: expected declaration specifiers before ';' token
101 | __CRC_SYMBOL(sym, sec); \
| ^
include/linux/export.h:147:39: note: in expansion of macro '___EXPORT_SYMBOL'
147 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns)
| ^~~~~~~~~~~~~~~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:159:33: note: in expansion of macro '_EXPORT_SYMBOL'
159 | #define EXPORT_SYMBOL_GPL(sym) _EXPORT_SYMBOL(sym, "_gpl")
| ^~~~~~~~~~~~~~
drivers/tty/sysrq.c:1188:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
1188 | EXPORT_SYMBOL_GPL(sysrq_toggle_support);
| ^~~~~~~~~~~~~~~~~
>> include/linux/export.h:102:2: error: expected declaration specifiers before 'asm'
102 | asm(" .section \"__ksymtab_strings\",\"aMS\",%progbits,1 \n" \
| ^~~
include/linux/export.h:147:39: note: in expansion of macro '___EXPORT_SYMBOL'
147 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns)
| ^~~~~~~~~~~~~~~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:159:33: note: in expansion of macro '_EXPORT_SYMBOL'
159 | #define EXPORT_SYMBOL_GPL(sym) _EXPORT_SYMBOL(sym, "_gpl")
| ^~~~~~~~~~~~~~
drivers/tty/sysrq.c:1188:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
1188 | EXPORT_SYMBOL_GPL(sysrq_toggle_support);
| ^~~~~~~~~~~~~~~~~
include/linux/export.h:67:36: error: storage class specified for parameter '__ksymtab_sysrq_toggle_support'
67 | static const struct kernel_symbol __ksymtab_##sym \
| ^~~~~~~~~~
include/linux/export.h:108:2: note: in expansion of macro '__KSYMTAB_ENTRY'
108 | __KSYMTAB_ENTRY(sym, sec)
| ^~~~~~~~~~~~~~~
include/linux/export.h:147:39: note: in expansion of macro '___EXPORT_SYMBOL'
147 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns)
| ^~~~~~~~~~~~~~~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:159:33: note: in expansion of macro '_EXPORT_SYMBOL'
159 | #define EXPORT_SYMBOL_GPL(sym) _EXPORT_SYMBOL(sym, "_gpl")
| ^~~~~~~~~~~~~~
drivers/tty/sysrq.c:1188:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
1188 | EXPORT_SYMBOL_GPL(sysrq_toggle_support);
| ^~~~~~~~~~~~~~~~~
>> include/linux/export.h:67:22: error: parameter '__ksymtab_sysrq_toggle_support' is initialized
67 | static const struct kernel_symbol __ksymtab_##sym \
| ^~~~~~~~~~~~~
include/linux/export.h:108:2: note: in expansion of macro '__KSYMTAB_ENTRY'
108 | __KSYMTAB_ENTRY(sym, sec)
| ^~~~~~~~~~~~~~~
include/linux/export.h:147:39: note: in expansion of macro '___EXPORT_SYMBOL'
147 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns)
| ^~~~~~~~~~~~~~~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:159:33: note: in expansion of macro '_EXPORT_SYMBOL'
159 | #define EXPORT_SYMBOL_GPL(sym) _EXPORT_SYMBOL(sym, "_gpl")
| ^~~~~~~~~~~~~~
drivers/tty/sysrq.c:1188:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
1188 | EXPORT_SYMBOL_GPL(sysrq_toggle_support);
| ^~~~~~~~~~~~~~~~~
>> include/linux/export.h:67:36: error: section attribute not allowed for '__ksymtab_sysrq_toggle_support'
67 | static const struct kernel_symbol __ksymtab_##sym \
| ^~~~~~~~~~
include/linux/export.h:108:2: note: in expansion of macro '__KSYMTAB_ENTRY'
108 | __KSYMTAB_ENTRY(sym, sec)
| ^~~~~~~~~~~~~~~
include/linux/export.h:147:39: note: in expansion of macro '___EXPORT_SYMBOL'
147 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns)
| ^~~~~~~~~~~~~~~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:159:33: note: in expansion of macro '_EXPORT_SYMBOL'
159 | #define EXPORT_SYMBOL_GPL(sym) _EXPORT_SYMBOL(sym, "_gpl")
| ^~~~~~~~~~~~~~
drivers/tty/sysrq.c:1188:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
1188 | EXPORT_SYMBOL_GPL(sysrq_toggle_support);
| ^~~~~~~~~~~~~~~~~
>> include/linux/export.h:67:22: warning: 'used' attribute ignored [-Wattributes]
67 | static const struct kernel_symbol __ksymtab_##sym \
| ^~~~~~~~~~~~~
include/linux/export.h:108:2: note: in expansion of macro '__KSYMTAB_ENTRY'
108 | __KSYMTAB_ENTRY(sym, sec)
| ^~~~~~~~~~~~~~~
include/linux/export.h:147:39: note: in expansion of macro '___EXPORT_SYMBOL'
147 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns)
| ^~~~~~~~~~~~~~~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:159:33: note: in expansion of macro '_EXPORT_SYMBOL'
159 | #define EXPORT_SYMBOL_GPL(sym) _EXPORT_SYMBOL(sym, "_gpl")
| ^~~~~~~~~~~~~~
drivers/tty/sysrq.c:1188:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
1188 | EXPORT_SYMBOL_GPL(sysrq_toggle_support);
| ^~~~~~~~~~~~~~~~~
>> include/linux/export.h:67:36: error: alignment may not be specified for '__ksymtab_sysrq_toggle_support'
67 | static const struct kernel_symbol __ksymtab_##sym \
| ^~~~~~~~~~
include/linux/export.h:108:2: note: in expansion of macro '__KSYMTAB_ENTRY'
108 | __KSYMTAB_ENTRY(sym, sec)
| ^~~~~~~~~~~~~~~
include/linux/export.h:147:39: note: in expansion of macro '___EXPORT_SYMBOL'
147 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns)
| ^~~~~~~~~~~~~~~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:159:33: note: in expansion of macro '_EXPORT_SYMBOL'
159 | #define EXPORT_SYMBOL_GPL(sym) _EXPORT_SYMBOL(sym, "_gpl")
| ^~~~~~~~~~~~~~
drivers/tty/sysrq.c:1188:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
1188 | EXPORT_SYMBOL_GPL(sysrq_toggle_support);
| ^~~~~~~~~~~~~~~~~
drivers/tty/sysrq.c:1192:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
1192 | {
| ^
drivers/tty/sysrq.c:1215:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
1215 | {
| ^
In file included from include/linux/linkage.h:7,
from include/linux/kernel.h:8,
from include/linux/list.h:9,
from include/linux/rculist.h:10,
from include/linux/sched/signal.h:5,
from drivers/tty/sysrq.c:18:
>> drivers/tty/sysrq.c:1218:15: error: storage class specified for parameter 'register_sysrq_key'
1218 | EXPORT_SYMBOL(register_sysrq_key);
| ^~~~~~~~~~~~~~~~~~
include/linux/export.h:98:21: note: in definition of macro '___EXPORT_SYMBOL'
98 | extern typeof(sym) sym; \
| ^~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:158:29: note: in expansion of macro '_EXPORT_SYMBOL'
158 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "")
| ^~~~~~~~~~~~~~
drivers/tty/sysrq.c:1218:1: note: in expansion of macro 'EXPORT_SYMBOL'
1218 | EXPORT_SYMBOL(register_sysrq_key);
| ^~~~~~~~~~~~~
>> include/linux/export.h:99:20: error: storage class specified for parameter '__kstrtab_register_sysrq_key'
99 | extern const char __kstrtab_##sym[]; \
| ^~~~~~~~~~
include/linux/export.h:147:39: note: in expansion of macro '___EXPORT_SYMBOL'
147 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns)
| ^~~~~~~~~~~~~~~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:158:29: note: in expansion of macro '_EXPORT_SYMBOL'
158 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "")
| ^~~~~~~~~~~~~~
drivers/tty/sysrq.c:1218:1: note: in expansion of macro 'EXPORT_SYMBOL'
1218 | EXPORT_SYMBOL(register_sysrq_key);
| ^~~~~~~~~~~~~
>> include/linux/export.h:100:20: error: storage class specified for parameter '__kstrtabns_register_sysrq_key'
100 | extern const char __kstrtabns_##sym[]; \
| ^~~~~~~~~~~~
include/linux/export.h:147:39: note: in expansion of macro '___EXPORT_SYMBOL'
147 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns)
| ^~~~~~~~~~~~~~~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:158:29: note: in expansion of macro '_EXPORT_SYMBOL'
158 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "")
| ^~~~~~~~~~~~~~
drivers/tty/sysrq.c:1218:1: note: in expansion of macro 'EXPORT_SYMBOL'
1218 | EXPORT_SYMBOL(register_sysrq_key);
| ^~~~~~~~~~~~~
>> include/linux/export.h:101:24: error: expected declaration specifiers before ';' token
101 | __CRC_SYMBOL(sym, sec); \
| ^
include/linux/export.h:147:39: note: in expansion of macro '___EXPORT_SYMBOL'
147 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns)
| ^~~~~~~~~~~~~~~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:158:29: note: in expansion of macro '_EXPORT_SYMBOL'
158 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "")
| ^~~~~~~~~~~~~~
drivers/tty/sysrq.c:1218:1: note: in expansion of macro 'EXPORT_SYMBOL'
1218 | EXPORT_SYMBOL(register_sysrq_key);
| ^~~~~~~~~~~~~
>> include/linux/export.h:102:2: error: expected declaration specifiers before 'asm'
102 | asm(" .section \"__ksymtab_strings\",\"aMS\",%progbits,1 \n" \
| ^~~
include/linux/export.h:147:39: note: in expansion of macro '___EXPORT_SYMBOL'
147 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns)
| ^~~~~~~~~~~~~~~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:158:29: note: in expansion of macro '_EXPORT_SYMBOL'
158 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "")
| ^~~~~~~~~~~~~~
drivers/tty/sysrq.c:1218:1: note: in expansion of macro 'EXPORT_SYMBOL'
1218 | EXPORT_SYMBOL(register_sysrq_key);
| ^~~~~~~~~~~~~
include/linux/export.h:67:36: error: storage class specified for parameter '__ksymtab_register_sysrq_key'
67 | static const struct kernel_symbol __ksymtab_##sym \
| ^~~~~~~~~~
include/linux/export.h:108:2: note: in expansion of macro '__KSYMTAB_ENTRY'
108 | __KSYMTAB_ENTRY(sym, sec)
| ^~~~~~~~~~~~~~~
include/linux/export.h:147:39: note: in expansion of macro '___EXPORT_SYMBOL'
147 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns)
| ^~~~~~~~~~~~~~~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:158:29: note: in expansion of macro '_EXPORT_SYMBOL'
158 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "")
| ^~~~~~~~~~~~~~
drivers/tty/sysrq.c:1218:1: note: in expansion of macro 'EXPORT_SYMBOL'
1218 | EXPORT_SYMBOL(register_sysrq_key);
| ^~~~~~~~~~~~~
>> include/linux/export.h:67:22: error: parameter '__ksymtab_register_sysrq_key' is initialized
67 | static const struct kernel_symbol __ksymtab_##sym \
| ^~~~~~~~~~~~~
include/linux/export.h:108:2: note: in expansion of macro '__KSYMTAB_ENTRY'
108 | __KSYMTAB_ENTRY(sym, sec)
| ^~~~~~~~~~~~~~~
include/linux/export.h:147:39: note: in expansion of macro '___EXPORT_SYMBOL'
147 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns)
| ^~~~~~~~~~~~~~~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:158:29: note: in expansion of macro '_EXPORT_SYMBOL'
158 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "")
| ^~~~~~~~~~~~~~
drivers/tty/sysrq.c:1218:1: note: in expansion of macro 'EXPORT_SYMBOL'
1218 | EXPORT_SYMBOL(register_sysrq_key);
| ^~~~~~~~~~~~~
>> include/linux/export.h:67:36: error: section attribute not allowed for '__ksymtab_register_sysrq_key'
67 | static const struct kernel_symbol __ksymtab_##sym \
| ^~~~~~~~~~
include/linux/export.h:108:2: note: in expansion of macro '__KSYMTAB_ENTRY'
108 | __KSYMTAB_ENTRY(sym, sec)
| ^~~~~~~~~~~~~~~
include/linux/export.h:147:39: note: in expansion of macro '___EXPORT_SYMBOL'
147 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns)
| ^~~~~~~~~~~~~~~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:158:29: note: in expansion of macro '_EXPORT_SYMBOL'
158 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "")
| ^~~~~~~~~~~~~~
drivers/tty/sysrq.c:1218:1: note: in expansion of macro 'EXPORT_SYMBOL'
1218 | EXPORT_SYMBOL(register_sysrq_key);
| ^~~~~~~~~~~~~
>> include/linux/export.h:67:22: warning: 'used' attribute ignored [-Wattributes]
67 | static const struct kernel_symbol __ksymtab_##sym \
| ^~~~~~~~~~~~~
include/linux/export.h:108:2: note: in expansion of macro '__KSYMTAB_ENTRY'
108 | __KSYMTAB_ENTRY(sym, sec)
| ^~~~~~~~~~~~~~~
include/linux/export.h:147:39: note: in expansion of macro '___EXPORT_SYMBOL'
147 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns)
| ^~~~~~~~~~~~~~~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:158:29: note: in expansion of macro '_EXPORT_SYMBOL'
158 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "")
| ^~~~~~~~~~~~~~
drivers/tty/sysrq.c:1218:1: note: in expansion of macro 'EXPORT_SYMBOL'
1218 | EXPORT_SYMBOL(register_sysrq_key);
| ^~~~~~~~~~~~~
>> include/linux/export.h:67:36: error: alignment may not be specified for '__ksymtab_register_sysrq_key'
67 | static const struct kernel_symbol __ksymtab_##sym \
| ^~~~~~~~~~
include/linux/export.h:108:2: note: in expansion of macro '__KSYMTAB_ENTRY'
108 | __KSYMTAB_ENTRY(sym, sec)
| ^~~~~~~~~~~~~~~
include/linux/export.h:147:39: note: in expansion of macro '___EXPORT_SYMBOL'
147 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns)
| ^~~~~~~~~~~~~~~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:158:29: note: in expansion of macro '_EXPORT_SYMBOL'
158 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "")
| ^~~~~~~~~~~~~~
drivers/tty/sysrq.c:1218:1: note: in expansion of macro 'EXPORT_SYMBOL'
1218 | EXPORT_SYMBOL(register_sysrq_key);
| ^~~~~~~~~~~~~
drivers/tty/sysrq.c:1221:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
1221 | {
| ^
In file included from include/linux/linkage.h:7,
from include/linux/kernel.h:8,
from include/linux/list.h:9,
from include/linux/rculist.h:10,
from include/linux/sched/signal.h:5,
from drivers/tty/sysrq.c:18:
drivers/tty/sysrq.c:1224:15: error: storage class specified for parameter 'unregister_sysrq_key'
1224 | EXPORT_SYMBOL(unregister_sysrq_key);
| ^~~~~~~~~~~~~~~~~~~~
include/linux/export.h:98:21: note: in definition of macro '___EXPORT_SYMBOL'
98 | extern typeof(sym) sym; \
| ^~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:158:29: note: in expansion of macro '_EXPORT_SYMBOL'
158 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "")
| ^~~~~~~~~~~~~~
drivers/tty/sysrq.c:1224:1: note: in expansion of macro 'EXPORT_SYMBOL'
1224 | EXPORT_SYMBOL(unregister_sysrq_key);
| ^~~~~~~~~~~~~
include/linux/export.h:99:20: error: storage class specified for parameter '__kstrtab_unregister_sysrq_key'
99 | extern const char __kstrtab_##sym[]; \
| ^~~~~~~~~~
include/linux/export.h:147:39: note: in expansion of macro '___EXPORT_SYMBOL'
147 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns)
| ^~~~~~~~~~~~~~~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:158:29: note: in expansion of macro '_EXPORT_SYMBOL'
158 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "")
| ^~~~~~~~~~~~~~
drivers/tty/sysrq.c:1224:1: note: in expansion of macro 'EXPORT_SYMBOL'
1224 | EXPORT_SYMBOL(unregister_sysrq_key);
| ^~~~~~~~~~~~~
include/linux/export.h:100:20: error: storage class specified for parameter '__kstrtabns_unregister_sysrq_key'
100 | extern const char __kstrtabns_##sym[]; \
| ^~~~~~~~~~~~
include/linux/export.h:147:39: note: in expansion of macro '___EXPORT_SYMBOL'
147 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns)
| ^~~~~~~~~~~~~~~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:158:29: note: in expansion of macro '_EXPORT_SYMBOL'
158 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "")
| ^~~~~~~~~~~~~~
drivers/tty/sysrq.c:1224:1: note: in expansion of macro 'EXPORT_SYMBOL'
1224 | EXPORT_SYMBOL(unregister_sysrq_key);
| ^~~~~~~~~~~~~
include/linux/export.h:101:24: error: expected declaration specifiers before ';' token
101 | __CRC_SYMBOL(sym, sec); \
| ^
include/linux/export.h:147:39: note: in expansion of macro '___EXPORT_SYMBOL'
147 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns)
| ^~~~~~~~~~~~~~~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:158:29: note: in expansion of macro '_EXPORT_SYMBOL'
158 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "")
| ^~~~~~~~~~~~~~
drivers/tty/sysrq.c:1224:1: note: in expansion of macro 'EXPORT_SYMBOL'
1224 | EXPORT_SYMBOL(unregister_sysrq_key);
| ^~~~~~~~~~~~~
include/linux/export.h:102:2: error: expected declaration specifiers before 'asm'
102 | asm(" .section \"__ksymtab_strings\",\"aMS\",%progbits,1 \n" \
| ^~~
include/linux/export.h:147:39: note: in expansion of macro '___EXPORT_SYMBOL'
147 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns)
| ^~~~~~~~~~~~~~~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:158:29: note: in expansion of macro '_EXPORT_SYMBOL'
158 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "")
| ^~~~~~~~~~~~~~
drivers/tty/sysrq.c:1224:1: note: in expansion of macro 'EXPORT_SYMBOL'
1224 | EXPORT_SYMBOL(unregister_sysrq_key);

vim +1159 drivers/tty/sysrq.c

1158
> 1159 {
1160 }
1161
> 1162 static void sysrq_action_compound(int key)
1163 static inline void sysrq_register_handler(void)
> 1164 {
1165 }
1166
1167 static inline void sysrq_unregister_handler(void)
1168 {
1169 }
1170
1171 #endif /* CONFIG_INPUT */
1172
1173 int sysrq_toggle_support(int enable_mask)
1174 {
1175 bool was_enabled = sysrq_on();
1176
1177 sysrq_enabled = enable_mask;
1178
1179 if (was_enabled != sysrq_on()) {
1180 if (sysrq_on())
1181 sysrq_register_handler();
1182 else
1183 sysrq_unregister_handler();
1184 }
1185
1186 return 0;
1187 }
> 1188 EXPORT_SYMBOL_GPL(sysrq_toggle_support);
1189
1190 static int __sysrq_swap_key_ops(int key, const struct sysrq_key_op *insert_op_p,
1191 const struct sysrq_key_op *remove_op_p)
1192 {
1193 int retval;
1194
1195 spin_lock(&sysrq_key_table_lock);
1196 if (__sysrq_get_key_op(key) == remove_op_p) {
1197 __sysrq_put_key_op(key, insert_op_p);
1198 retval = 0;
1199 } else {
1200 retval = -1;
1201 }
1202 spin_unlock(&sysrq_key_table_lock);
1203
1204 /*
1205 * A concurrent __handle_sysrq either got the old op or the new op.
1206 * Wait for it to go away before returning, so the code for an old
1207 * op is not freed (eg. on module unload) while it is in use.
1208 */
1209 synchronize_rcu();
1210
1211 return retval;
1212 }
1213
1214 int register_sysrq_key(int key, const struct sysrq_key_op *op_p)
1215 {
1216 return __sysrq_swap_key_ops(key, op_p, NULL);
1217 }
> 1218 EXPORT_SYMBOL(register_sysrq_key);
1219
1220 int unregister_sysrq_key(int key, const struct sysrq_key_op *op_p)
1221 {
1222 return __sysrq_swap_key_ops(key, NULL, op_p);
1223 }
> 1224 EXPORT_SYMBOL(unregister_sysrq_key);
1225
1226 #ifdef CONFIG_PROC_FS
1227 /*
1228 * writing 'C' to /proc/sysrq-trigger is like sysrq-C
1229 */
1230 static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf,
1231 size_t count, loff_t *ppos)
1232 {
1233 if (count) {
1234 char c;
1235
1236 if (get_user(c, buf))
1237 return -EFAULT;
1238 __handle_sysrq(c, false);
1239 }
1240
1241 return count;
1242 }
1243
> 1244 static const struct proc_ops sysrq_trigger_proc_ops = {
> 1245 .proc_write = write_sysrq_trigger,
1246 .proc_lseek = noop_llseek,
1247 };
1248
1249 static void sysrq_init_procfs(void)
1250 {
1251 if (!proc_create("sysrq-trigger", S_IWUSR, NULL,
1252 &sysrq_trigger_proc_ops))
1253 pr_err("Failed to register proc interface\n");
1254 }
1255
1256 #else
1257
1258 static inline void sysrq_init_procfs(void)
1259 {
1260 }
1261
1262 #endif /* CONFIG_PROC_FS */
1263
1264 static int __init sysrq_init(void)
1265 {
1266 sysrq_init_procfs();
1267
1268 if (sysrq_on())
1269 sysrq_register_handler();
1270
1271 return 0;
1272 }
> 1273 device_initcall(sysrq_init);

---
0-DAY CI Kernel Test Service, Intel Corporation
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