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-rw-r--r--src/include/gpxe/retry.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/include/gpxe/retry.h b/src/include/gpxe/retry.h
index 7291db234..57be432e2 100644
--- a/src/include/gpxe/retry.h
+++ b/src/include/gpxe/retry.h
@@ -15,7 +15,10 @@ struct retry_timer {
struct list_head list;
/** Timeout value (in ticks) */
unsigned long timeout;
- /** Start time (in ticks) */
+ /** Start time (in ticks)
+ *
+ * A start time of zero indicates a stopped timer.
+ */
unsigned long start;
/** Retry count */
unsigned int count;