[rt-devel:linux-6.6.y-rt-rebase 132/181] kernel/printk/internal.h:137:17: warning: no previous prototype for 'nbcon_get_default_prio'

[rt-devel:linux-6.6.y-rt-rebase 132/181] kernel/printk/internal.h:137:17: warning: no previous prototype for 'nbcon_get_default_prio'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-6.6.y-rt-rebase
head:   bc63ae5633ea188364e3a3a635af73771c70c3c7
commit: f7c3038c2eb4a73c0ca6222d4097c55a999c4f49 [132/181] printk: nbcon: Add unsafe flushing on panic
config: arc-randconfig-002-20231109 (https://download.01.org/0day-ci/archive/20231109/202311090501.wFJrW770-lkp@intel.com/config)
compiler: arc-elf-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231109/202311090501.wFJrW770-lkp@intel.com/reproduce)

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/202311090501.wFJrW770-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from kernel/printk/printk.c:61:
>> kernel/printk/internal.h:137:17: warning: no previous prototype for 'nbcon_get_default_prio' [-Wmissing-prototypes]
     137 | enum nbcon_prio nbcon_get_default_prio(void) { return NBCON_PRIO_NONE; }
         |                 ^~~~~~~~~~~~~~~~~~~~~~


vim +/nbcon_get_default_prio +137 kernel/printk/internal.h

   130	
   131	static inline bool printk_percpu_data_ready(void) { return false; }
   132	static inline u64 nbcon_seq_read(struct console *con) { return 0; }
   133	static inline void nbcon_seq_force(struct console *con, u64 seq) { }
   134	static inline bool nbcon_alloc(struct console *con) { return false; }
   135	static inline void nbcon_init(struct console *con) { }
   136	static inline void nbcon_free(struct console *con) { }
 > 137	enum nbcon_prio nbcon_get_default_prio(void) { return NBCON_PRIO_NONE; }
   138	static inline void nbcon_atomic_flush_all(void) { }
   139	static bool nbcon_atomic_emit_next_record(struct console *con) { return false; }
   140	

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