pespin submitted this change.

Approvals:
  Jenkins Builder: Verified
  laforge: Looks good to me, but someone else must approve
  pespin: Looks good to me, approved

linuxlist.h: add llist_last_entry_or_null macro

Related: OS#6705
Change-Id: Iaa5c8900434fe327a9c8b072182624a7fbfb369c
---
M include/osmocom/core/linuxlist.h
1 file changed, 10 insertions(+), 0 deletions(-)

diff --git a/include/osmocom/core/linuxlist.h b/include/osmocom/core/linuxlist.h
index 2fc3fa7..8c8b1bc 100644
--- a/include/osmocom/core/linuxlist.h
+++ b/include/osmocom/core/linuxlist.h
@@ -254,6 +254,16 @@
 #define llist_first_entry_or_null(ptr, type, member) \
 	(!llist_empty(ptr) ? llist_first_entry(ptr, type, member) : NULL)
 
+/*! Get the last element from a list, or NULL.
+ *  \param ptr    the list head to take the element from.
+ *  \param type   the type of the struct this is embedded in.
+ *  \param member the name of the list_head within the struct.
+ *
+ * Note that if the list is empty, it returns NULL.
+ */
+#define llist_last_entry_or_null(ptr, type, member) \
+	(!llist_empty(ptr) ? llist_last_entry(ptr, type, member) : NULL)
+
 /*! Iterate over a linked list.
  *  \param pos  the llist_head to use as a loop counter.
  *  \param head the head of the list over which to iterate.

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