udebug: add inline helper function to test if a buffer is allocated

Signed-off-by: Felix Fietkau <nbd@nbd.name>

diff --git a/udebug.h b/udebug.h
index 75c2e3f916701bf0e86f757e912e8b2a8afa5a62..3b6c85154f3e75727e42ea7e066022e277d33ea7 100644 (file)
--- a/udebug.h
+++ b/udebug.h
@@ -166,6 +166,10 @@ int udebug_buf_add(struct udebug *ctx, struct udebug_buf *buf,
                   const struct udebug_buf_meta *meta);
 uint64_t udebug_buf_flags(struct udebug_buf *buf);
 void udebug_buf_free(struct udebug_buf *buf);
+static inline bool udebug_buf_valid(struct udebug_buf *buf)
+{
+       return buf->hdr;
+}
 
 struct udebug_remote_buf *udebug_remote_buf_get(struct udebug *ctx, uint32_t id);
 int udebug_remote_buf_map(struct udebug *ctx, struct udebug_remote_buf *rb, uint32_t id);