add msgb_set_talloc_ctx() to set the talloc context for msgb allocations
diff --git a/include/osmocom/core/msgb.h b/include/osmocom/core/msgb.h
index 8665c2b..58976f7 100644
--- a/include/osmocom/core/msgb.h
+++ b/include/osmocom/core/msgb.h
@@ -193,5 +193,7 @@
 uint8_t *msgb_data(const struct msgb *msg);
 uint16_t msgb_length(const struct msgb *msg);
 
+/* set the talloc context for msgb_alloc[_headroom] */
+void msgb_set_talloc_ctx(void *ctx);
 
 #endif /* _MSGB_H */