Messages in this thread Patch in this message | | | From | Arnd Bergmann <> | Subject | [PATCH] debugobjects: avoid another unused variable warning. | Date | Tue, 13 Mar 2018 14:18:46 +0100 |
| |
debug_objects_maxchecked is only updated in __debug_check_no_obj_freed(), and only read in debug_objects_maxchecked, unfortunately both of these are optional and depend on different Kconfig symbols. When both CONFIG_DEBUG_OBJECTS_FREE and CONFIG_DEBUG_FS are disabled, we get this warning:
lib/debugobjects.c:56:14: error: 'debug_objects_maxchecked' defined but not used [-Werror=unused-variable]
Rather than trying to add more complex #ifdef protections, this marks the variable as __maybe_unused so it can be silently dropped when usused.
Fixes: bd9dcd046509 ("debugobjects: Export max loops counter") Signed-off-by: Arnd Bergmann <arnd@arndb.de> --- lib/debugobjects.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/debugobjects.c b/lib/debugobjects.c index 105ecfc47d8c..994be4805cec 100644 --- a/lib/debugobjects.c +++ b/lib/debugobjects.c @@ -53,7 +53,7 @@ static int obj_nr_tofree; static struct kmem_cache *obj_cache; static int debug_objects_maxchain __read_mostly; -static int debug_objects_maxchecked __read_mostly; +static int __maybe_unused debug_objects_maxchecked __read_mostly; static int debug_objects_fixups __read_mostly; static int debug_objects_warnings __read_mostly; static int debug_objects_enabled __read_mostly -- 2.9.0
| |