llc: Use timeradd and timercmp and fix for < 1s PDU llc timeouts
diff --git a/src/tbf.cpp b/src/tbf.cpp
index 25f31c3..2310f85 100644
--- a/src/tbf.cpp
+++ b/src/tbf.cpp
@@ -687,10 +687,11 @@
while ((msg = m_llc.dequeue())) {
tv = (struct timeval *)msg->data;
msgb_pull(msg, sizeof(*tv));
- if (tv->tv_sec /* not infinite */
- && (tv_now.tv_sec > tv->tv_sec /* and secs expired */
- || (tv_now.tv_sec == tv->tv_sec /* .. or if secs equal .. */
- && tv_now.tv_usec > tv->tv_usec))) { /* .. usecs expired */
+
+ /* Timeout is infinite */
+ if (tv->tv_sec == 0 && tv->tv_usec == 0)
+ break;
+ if (timercmp(&tv_now, tv, >)) {
LOGP(DRLCMACDL, LOGL_NOTICE, "%s Discarding LLC PDU "
"because lifetime limit reached\n",
tbf_name(this));