netdev: make napi_schedule return bool on NAPI successful schedule

Change napi_schedule to return a bool on NAPI successful schedule.
This might be useful for some driver to do additional steps after a
NAPI has been scheduled.

Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20231009133754.9834-2-ansuelsmth@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 11d704bfec9b16f1b6ab6356f8004010c5200ea9..2874770a0a74b976705ce2136dda641fd125ab59 100644 (file)
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -490,11 +490,18 @@ bool napi_schedule_prep(struct napi_struct *n);
  *
  * Schedule NAPI poll routine to be called if it is not already
  * running.
+ * Return true if we schedule a NAPI or false if not.
+ * Refer to napi_schedule_prep() for additional reason on why
+ * a NAPI might not be scheduled.
  */
-static inline void napi_schedule(struct napi_struct *n)
+static inline bool napi_schedule(struct napi_struct *n)
 {
-       if (napi_schedule_prep(n))
+       if (napi_schedule_prep(n)) {
                __napi_schedule(n);
+               return true;
+       }
+
+       return false;
 }
 
 /**