X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fwrapper%2Fsplice.c;h=407c12db14fca8a3611ef74e901fd8771b5ec23e;hb=47d4b31dc9703024784af6af0a906d9458f648bf;hp=33e3aaa53b9bb08fdd5857f16819e6775085e0ed;hpb=cfa6cc1d0f01c2cfcc1a679abf3a6572d411c309;p=lttng-modules.git

diff --git a/src/wrapper/splice.c b/src/wrapper/splice.c
index 33e3aaa5..407c12db 100644
--- a/src/wrapper/splice.c
+++ b/src/wrapper/splice.c
@@ -36,6 +36,21 @@ ssize_t wrapper_splice_to_pipe(struct pipe_inode_info *pipe,
 	}
 }
 
+/*
+ * Canary function to check for 'splice_to_pipe()' at compile time.
+ *
+ * From 'include/linux/splice.h':
+ *
+ *   extern ssize_t splice_to_pipe(struct pipe_inode_info *,
+ *                                 struct splice_pipe_desc *spd);
+ */
+__attribute__((unused)) static
+ssize_t __canary__splice_to_pipe(struct pipe_inode_info *pipe,
+				struct splice_pipe_desc *spd)
+{
+	return splice_to_pipe(pipe, spd);
+}
+
 #else
 
 #include <linux/fs.h>