basic/log: make log_{info,warning,...} return void

log_debug still returns 0. I think it is legitimate to use 'return log_debug()' to
return 0. It is different than the other functions, since we often want to supress
errors logged at debug level. This case is quite common in the codebase and
we could use 'return log_debug_errno()' to make the code more consise.

For all other variants, a separate return line is required.
Previous commit changes all the non-conforming instances, now we can make it mandatory.

diff --git a/src/basic/log.h b/src/basic/log.h
index 15807d3029f95e76e20da8be0526223094e9b4bf..137d21005d415f32a3d33f146d7ad9addac7102f 100644 (file)
--- a/src/basic/log.h
+++ b/src/basic/log.h
@@ -234,12 +234,12 @@ void log_assert_failed_return_realm(
 #define log_full_errno(level, error, ...)                               \
         log_full_errno_realm(LOG_REALM, (level), (error), __VA_ARGS__)
 
-#define log_full(level, ...) log_full_errno((level), 0, __VA_ARGS__)
+#define log_full(level, ...) (void) log_full_errno((level), 0, __VA_ARGS__)
 
 int log_emergency_level(void);
 
 /* Normal logging */
-#define log_debug(...)     log_full(LOG_DEBUG,   __VA_ARGS__)
+#define log_debug(...)     log_full_errno(LOG_DEBUG, 0, __VA_ARGS__)
 #define log_info(...)      log_full(LOG_INFO,    __VA_ARGS__)
 #define log_notice(...)    log_full(LOG_NOTICE,  __VA_ARGS__)
 #define log_warning(...)   log_full(LOG_WARNING, __VA_ARGS__)