[openeuler:OLK-6.6 2850/9501] kernel/sched/isolation.c:244:19: error: invalid storage class for function 'enhanced_isolcpus_setup' - Kernel

11 May 2024


      tree:   https://gitee.com/openeuler/kernel.git OLK-6.6
head:   a00ba8b54d9123a4242dc589aee8122a3adf0d4a
commit: 5f20541757730418065c3ae77dfdbcde3f523394 [2850/9501] blk-mq: avoid housekeeping CPUs scheduling a worker on a non-housekeeping CPU
config: x86_64-randconfig-012-20240511 (https://download.01.org/0day-ci/archive/20240511/202405110520.AdmHWk19-lkp@i...)
compiler: gcc-12 (Ubuntu 12.3.0-9ubuntu2) 12.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240511/202405110520.AdmHWk19-lkp@i...)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot lkp@intel.com
| Closes: https://lore.kernel.org/oe-kbuild-all/202405110520.AdmHWk19-lkp@intel.com/
All errors (new ones prefixed by >>):
54 | EXPORT_SYMBOL_GPL(housekeeping_any_cpu);
         | ^~~~~~~~~~~~~~~~~
   kernel/sched/isolation.c:39:5: note: previous definition of 'housekeeping_any_cpu' with type 'int(enum hk_type)'
      39 | int housekeeping_any_cpu(enum hk_type type)
         |     ^~~~~~~~~~~~~~~~~~~~
   kernel/sched/isolation.c:63:19: error: non-static declaration of 'housekeeping_cpumask' follows static declaration
      63 | EXPORT_SYMBOL_GPL(housekeeping_cpumask);
         |                   ^~~~~~~~~~~~~~~~~~~~
   include/linux/export.h:74:28: note: in definition of macro '__EXPORT_SYMBOL'
      74 |         extern typeof(sym) sym;                                 \
         |                            ^~~
   include/linux/export.h:87:41: note: in expansion of macro '_EXPORT_SYMBOL'
      87 | #define EXPORT_SYMBOL_GPL(sym)          _EXPORT_SYMBOL(sym, "GPL")
         |                                         ^~~~~~~~~~~~~~
   kernel/sched/isolation.c:63:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
      63 | EXPORT_SYMBOL_GPL(housekeeping_cpumask);
         | ^~~~~~~~~~~~~~~~~
   kernel/sched/isolation.c:56:23: note: previous definition of 'housekeeping_cpumask' with type 'const struct cpumask *(enum hk_type)'
      56 | const struct cpumask *housekeeping_cpumask(enum hk_type type)
         |                       ^~~~~~~~~~~~~~~~~~~~
   kernel/sched/isolation.c:71:19: error: non-static declaration of 'housekeeping_affine' follows static declaration
      71 | EXPORT_SYMBOL_GPL(housekeeping_affine);
         |                   ^~~~~~~~~~~~~~~~~~~
   include/linux/export.h:74:28: note: in definition of macro '__EXPORT_SYMBOL'
      74 |         extern typeof(sym) sym;                                 \
         |                            ^~~
   include/linux/export.h:87:41: note: in expansion of macro '_EXPORT_SYMBOL'
      87 | #define EXPORT_SYMBOL_GPL(sym)          _EXPORT_SYMBOL(sym, "GPL")
         |                                         ^~~~~~~~~~~~~~
   kernel/sched/isolation.c:71:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
      71 | EXPORT_SYMBOL_GPL(housekeeping_affine);
         | ^~~~~~~~~~~~~~~~~
   kernel/sched/isolation.c:65:6: note: previous definition of 'housekeeping_affine' with type 'void(struct task_struct *, enum hk_type)'
      65 | void housekeeping_affine(struct task_struct *t, enum hk_type type)
         |      ^~~~~~~~~~~~~~~~~~~
   kernel/sched/isolation.c:80:19: error: non-static declaration of 'housekeeping_test_cpu' follows static declaration
      80 | EXPORT_SYMBOL_GPL(housekeeping_test_cpu);
         |                   ^~~~~~~~~~~~~~~~~~~~~
   include/linux/export.h:74:28: note: in definition of macro '__EXPORT_SYMBOL'
      74 |         extern typeof(sym) sym;                                 \
         |                            ^~~
   include/linux/export.h:87:41: note: in expansion of macro '_EXPORT_SYMBOL'
      87 | #define EXPORT_SYMBOL_GPL(sym)          _EXPORT_SYMBOL(sym, "GPL")
         |                                         ^~~~~~~~~~~~~~
   kernel/sched/isolation.c:80:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
      80 | EXPORT_SYMBOL_GPL(housekeeping_test_cpu);
         | ^~~~~~~~~~~~~~~~~
   kernel/sched/isolation.c:73:6: note: previous definition of 'housekeeping_test_cpu' with type 'bool(int,  enum hk_type)' {aka '_Bool(int,  enum hk_type)'}
      73 | bool housekeeping_test_cpu(int cpu, enum hk_type type)
         |      ^~~~~~~~~~~~~~~~~~~~~
   kernel/sched/isolation.c:100:20: error: invalid storage class for function 'housekeeping_setup_type'
     100 | static void __init housekeeping_setup_type(enum hk_type type,
         |                    ^~~~~~~~~~~~~~~~~~~~~~~
   kernel/sched/isolation.c:109:19: error: invalid storage class for function 'housekeeping_setup'
     109 | static int __init housekeeping_setup(char *str, unsigned long flags)
         |                   ^~~~~~~~~~~~~~~~~~
   kernel/sched/isolation.c:180:19: error: invalid storage class for function 'housekeeping_nohz_full_setup'
     180 | static int __init housekeeping_nohz_full_setup(char *str)
         |                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/printk.h:6,
                    from include/linux/kernel.h:30:
   kernel/sched/isolation.c:189:23: error: initializer element is not constant
     189 | __setup("nohz_full=", housekeeping_nohz_full_setup);
         |                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/init.h:343:46: note: in definition of macro '__setup_param'
     343 |                 = { __setup_str_##unique_id, fn, early }
         |                                              ^~
   kernel/sched/isolation.c:189:1: note: in expansion of macro '__setup'
     189 | __setup("nohz_full=", housekeeping_nohz_full_setup);
         | ^~~~~~~
   kernel/sched/isolation.c:189:23: note: (near initialization for '__setup_housekeeping_nohz_full_setup.setup_func')
     189 | __setup("nohz_full=", housekeeping_nohz_full_setup);
         |                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/init.h:343:46: note: in definition of macro '__setup_param'
     343 |                 = { __setup_str_##unique_id, fn, early }
         |                                              ^~
   kernel/sched/isolation.c:189:1: note: in expansion of macro '__setup'
     189 | __setup("nohz_full=", housekeeping_nohz_full_setup);
         | ^~~~~~~
   kernel/sched/isolation.c:191:19: error: invalid storage class for function 'housekeeping_isolcpus_setup'
     191 | static int __init housekeeping_isolcpus_setup(char *str)
         |                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   kernel/sched/isolation.c:241:22: error: initializer element is not constant
     241 | __setup("isolcpus=", housekeeping_isolcpus_setup);
         |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/init.h:343:46: note: in definition of macro '__setup_param'
     343 |                 = { __setup_str_##unique_id, fn, early }
         |                                              ^~
   kernel/sched/isolation.c:241:1: note: in expansion of macro '__setup'
     241 | __setup("isolcpus=", housekeeping_isolcpus_setup);
         | ^~~~~~~
   kernel/sched/isolation.c:241:22: note: (near initialization for '__setup_housekeeping_isolcpus_setup.setup_func')
     241 | __setup("isolcpus=", housekeeping_isolcpus_setup);
         |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/init.h:343:46: note: in definition of macro '__setup_param'
     343 |                 = { __setup_str_##unique_id, fn, early }
         |                                              ^~
   kernel/sched/isolation.c:241:1: note: in expansion of macro '__setup'
     241 | __setup("isolcpus=", housekeeping_isolcpus_setup);
         | ^~~~~~~
...
...
kernel/sched/isolation.c:244:19: error: invalid storage class for function 'enhanced_isolcpus_setup'
244 | static int __init enhanced_isolcpus_setup(char *str)
         |                   ^~~~~~~~~~~~~~~~~~~~~~~
   kernel/sched/isolation.c:249:30: error: initializer element is not constant
     249 | __setup("enhanced_isolcpus", enhanced_isolcpus_setup);
         |                              ^~~~~~~~~~~~~~~~~~~~~~~
   include/linux/init.h:343:46: note: in definition of macro '__setup_param'
     343 |                 = { __setup_str_##unique_id, fn, early }
         |                                              ^~
   kernel/sched/isolation.c:249:1: note: in expansion of macro '__setup'
     249 | __setup("enhanced_isolcpus", enhanced_isolcpus_setup);
         | ^~~~~~~
   kernel/sched/isolation.c:249:30: note: (near initialization for '__setup_enhanced_isolcpus_setup.setup_func')
     249 | __setup("enhanced_isolcpus", enhanced_isolcpus_setup);
         |                              ^~~~~~~~~~~~~~~~~~~~~~~
   include/linux/init.h:343:46: note: in definition of macro '__setup_param'
     343 |                 = { __setup_str_##unique_id, fn, early }
         |                                              ^~
   kernel/sched/isolation.c:249:1: note: in expansion of macro '__setup'
     249 | __setup("enhanced_isolcpus", enhanced_isolcpus_setup);
         | ^~~~~~~
   In file included from kernel/sched/build_utility.c:109:
   kernel/sched/autogroup.c:7:28: error: section attribute cannot be specified for local variables
       7 | unsigned int __read_mostly sysctl_sched_autogroup_enabled = 1;
         |                            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   kernel/sched/autogroup.c:15:35: error: initializer element is not constant
      15 |                 .data           = &sysctl_sched_autogroup_enabled,
         |                                   ^
   kernel/sched/autogroup.c:15:35: note: (near initialization for 'sched_autogroup_sysctls[0].data')
   kernel/sched/autogroup.c:25:20: error: invalid storage class for function 'sched_autogroup_sysctl_init'
      25 | static void __init sched_autogroup_sysctl_init(void)
         |                    ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   kernel/sched/autogroup.c:47:20: error: invalid storage class for function 'autogroup_destroy'
      47 | static inline void autogroup_destroy(struct kref *kref)
         |                    ^~~~~~~~~~~~~~~~~
   kernel/sched/autogroup.c:60:20: error: invalid storage class for function 'autogroup_kref_put'
      60 | static inline void autogroup_kref_put(struct autogroup *ag)
         |                    ^~~~~~~~~~~~~~~~~~
   kernel/sched/autogroup.c:65:33: error: invalid storage class for function 'autogroup_kref_get'
      65 | static inline struct autogroup *autogroup_kref_get(struct autogroup *ag)
         |                                 ^~~~~~~~~~~~~~~~~~
   kernel/sched/autogroup.c:71:33: error: invalid storage class for function 'autogroup_task_get'
      71 | static inline struct autogroup *autogroup_task_get(struct task_struct *p)
         |                                 ^~~~~~~~~~~~~~~~~~
   kernel/sched/autogroup.c:85:33: error: invalid storage class for function 'autogroup_create'
      85 | static inline struct autogroup *autogroup_create(void)
         |                                 ^~~~~~~~~~~~~~~~
   kernel/sched/autogroup.c:158:1: error: invalid storage class for function 'autogroup_move_group'
     158 | autogroup_move_group(struct task_struct *p, struct autogroup *ag)
         | ^~~~~~~~~~~~~~~~~~~~
   kernel/sched/autogroup.c:202:15: error: non-static declaration of 'sched_autogroup_create_attach' follows static declaration
     202 | EXPORT_SYMBOL(sched_autogroup_create_attach);
         |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/export.h:74:28: note: in definition of macro '__EXPORT_SYMBOL'
      74 |         extern typeof(sym) sym;                                 \
         |                            ^~~
   include/linux/export.h:86:41: note: in expansion of macro '_EXPORT_SYMBOL'
      86 | #define EXPORT_SYMBOL(sym)              _EXPORT_SYMBOL(sym, "")
         |                                         ^~~~~~~~~~~~~~
   kernel/sched/autogroup.c:202:1: note: in expansion of macro 'EXPORT_SYMBOL'
     202 | EXPORT_SYMBOL(sched_autogroup_create_attach);
         | ^~~~~~~~~~~~~
   kernel/sched/autogroup.c:193:6: note: previous definition of 'sched_autogroup_create_attach' with type 'void(struct task_struct *)'
     193 | void sched_autogroup_create_attach(struct task_struct *p)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   kernel/sched/autogroup.c:209:15: error: non-static declaration of 'sched_autogroup_detach' follows static declaration
     209 | EXPORT_SYMBOL(sched_autogroup_detach);
         |               ^~~~~~~~~~~~~~~~~~~~~~
   include/linux/export.h:74:28: note: in definition of macro '__EXPORT_SYMBOL'
      74 |         extern typeof(sym) sym;                                 \
         |                            ^~~
   include/linux/export.h:86:41: note: in expansion of macro '_EXPORT_SYMBOL'
      86 | #define EXPORT_SYMBOL(sym)              _EXPORT_SYMBOL(sym, "")
         |                                         ^~~~~~~~~~~~~~
   kernel/sched/autogroup.c:209:1: note: in expansion of macro 'EXPORT_SYMBOL'
     209 | EXPORT_SYMBOL(sched_autogroup_detach);
         | ^~~~~~~~~~~~~
   kernel/sched/autogroup.c:205:6: note: previous definition of 'sched_autogroup_detach' with type 'void(struct task_struct *)'
     205 | void sched_autogroup_detach(struct task_struct *p)
         |      ^~~~~~~~~~~~~~~~~~~~~~
   kernel/sched/autogroup.c:221:19: error: invalid storage class for function 'setup_autogroup'
     221 | static int __init setup_autogroup(char *str)
         |                   ^~~~~~~~~~~~~~~
   kernel/sched/autogroup.c:227:24: error: initializer element is not constant
     227 | __setup("noautogroup", setup_autogroup);
         |                        ^~~~~~~~~~~~~~~
   include/linux/init.h:343:46: note: in definition of macro '__setup_param'
     343 |                 = { __setup_str_##unique_id, fn, early }
         |                                              ^~
   kernel/sched/autogroup.c:227:1: note: in expansion of macro '__setup'
     227 | __setup("noautogroup", setup_autogroup);
         | ^~~~~~~
   kernel/sched/autogroup.c:227:24: note: (near initialization for '__setup_setup_autogroup.setup_func')
     227 | __setup("noautogroup", setup_autogroup);
         |                        ^~~~~~~~~~~~~~~
   include/linux/init.h:343:46: note: in definition of macro '__setup_param'
     343 |                 = { __setup_str_##unique_id, fn, early }
         |                                              ^~
   kernel/sched/autogroup.c:227:1: note: in expansion of macro '__setup'
     227 | __setup("noautogroup", setup_autogroup);
         | ^~~~~~~
vim +/enhanced_isolcpus_setup +244 kernel/sched/isolation.c
242	
   243	bool enhanced_isolcpus;
...
244	static int __init enhanced_isolcpus_setup(char *str)
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