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Subject[daniel-thompson:kdb/seq_file 1/3] include/linux/kdb.h:217:33: warning: 'struct seq_operations' declared inside parameter list will not be visible outside of this definition or declaration
tree:   https://git.linaro.org/people/daniel.thompson/linux.git kdb/seq_file
head: 2c8f993b3c1bdefc7bf84c5d63dbe69d15897b20
commit: e333b2ce40d76f3250a29a610671861f5ad0689c [1/3] kdb: Add framework to display sequence files
config: um-i386_defconfig (https://download.01.org/0day-ci/archive/20220414/202204140058.LCY9tRmR-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.2.0-19) 11.2.0
reproduce (this is a W=1 build):
git remote add daniel-thompson https://git.linaro.org/people/daniel.thompson/linux.git
git fetch --no-tags daniel-thompson kdb/seq_file
git checkout e333b2ce40d76f3250a29a610671861f5ad0689c
# save the config file to linux build tree
mkdir build_dir
make W=1 O=build_dir ARCH=um SUBARCH=i386 SHELL=/bin/bash kernel/printk/

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 >>):

In file included from kernel/printk/printk_safe.c:7:
>> include/linux/kdb.h:217:33: warning: 'struct seq_operations' declared inside parameter list will not be visible outside of this definition or declaration
217 | kdb_print_seq_file(const struct seq_operations *ops) { return 0; }
| ^~~~~~~~~~~~~~


vim +217 include/linux/kdb.h

210
211 /* Dynamic kdb shell command registration */
212 extern int kdb_register(kdbtab_t *cmd);
213 extern void kdb_unregister(kdbtab_t *cmd);
214 #else /* ! CONFIG_KGDB_KDB */
215 static inline __printf(1, 2) int kdb_printf(const char *fmt, ...) { return 0; }
216 static inline int
> 217 kdb_print_seq_file(const struct seq_operations *ops) { return 0; }
218 static inline void kdb_init(int level) {}
219 static inline int kdb_register(kdbtab_t *cmd) { return 0; }
220 static inline void kdb_unregister(kdbtab_t *cmd) {}
221 #endif /* CONFIG_KGDB_KDB */
222 enum {
223 KDB_NOT_INITIALIZED,
224 KDB_INIT_EARLY,
225 KDB_INIT_FULL,
226 };
227

--
0-DAY CI Kernel Test Service
https://01.org/lkp

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