Add __maybe_unused attribute

And then apply it in src/register.c:io_uring_register_buf_ring() as we don't currently use the flags argument. Link: #622 Signed-off-by: Jens Axboe <[email protected]>
axboe · Jun 30, 2022 · 98c14a0 · 98c14a0
1 parent 41d82e1
commit 98c14a0
Show file tree

Hide file tree

Showing 2 changed files with 4 additions and 1 deletion.
diff --git a/src/lib.h b/src/lib.h
@@ -33,6 +33,8 @@
 	})
 #endif
 
+#define __maybe_unused		__attribute__((__unused__))
+
 void *__uring_malloc(size_t len);
 void __uring_free(void *p);
 

diff --git a/src/register.c b/src/register.c
@@ -332,7 +332,8 @@ int io_uring_unregister_ring_fd(struct io_uring *ring)
 }
 
 int io_uring_register_buf_ring(struct io_uring *ring,
-			       struct io_uring_buf_reg *reg, unsigned int flags)
+			       struct io_uring_buf_reg *reg,
+			       unsigned int __maybe_unused flags)
 {
 	return ____sys_io_uring_register(ring->ring_fd,
 					 IORING_REGISTER_PBUF_RING, reg, 1);
-Original file line number
+Diff line change
@@ Expand Up / @@ -33,6 +33,8 @@ @@
     	})
     #endif
+    #define __maybe_unused		__attribute__((__unused__))
     void *__uring_malloc(size_t len);
     void __uring_free(void *p);
@@ Expand Down @@