Add __attribute__((const, pure, format)) in various places

I'm assuming that it's fine if a _const_ or _pure_ function
calls assert. It is assumed that the assert won't trigger,
and even if it does, it can only trigger on the first call
with a given set of parameters, and we don't care if the
compiler moves the order of calls.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/shutdownd/shutdownd.c b/src/shutdownd/shutdownd.c
index 4c9c149a2d..461a7261f4 100644
--- a/src/shutdownd/shutdownd.c
+++ b/src/shutdownd/shutdownd.c
@@ -150,7 +150,7 @@ static void warn_wall(usec_t n, struct sd_shutdown_command *c) {
         }
 }
 
-static usec_t when_wall(usec_t n, usec_t elapse) {
+_const_ static usec_t when_wall(usec_t n, usec_t elapse) {
 
         static const struct {
                 usec_t delay;