X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=src%2Fwrapper%2Fsplice.c;h=51b9673fd606fc1da089936ae7c04c0254ab4802;hb=d1fea60895526d461646b2918eb53bed2f40b6eb;hp=33e3aaa53b9bb08fdd5857f16819e6775085e0ed;hpb=cfa6cc1d0f01c2cfcc1a679abf3a6572d411c309;p=lttng-modules.git

diff --git a/src/wrapper/splice.c b/src/wrapper/splice.c
index 33e3aaa5..51b9673f 100644
--- a/src/wrapper/splice.c
+++ b/src/wrapper/splice.c
@@ -11,8 +11,7 @@
 
 #include <lttng/kernel-version.h>
 
-#if (defined(CONFIG_KALLSYMS) \
-	&& (LINUX_VERSION_CODE < KERNEL_VERSION(4,2,0)))
+#ifdef CONFIG_KALLSYMS
 
 #include <linux/kallsyms.h>
 #include <linux/fs.h>
@@ -36,6 +35,21 @@ 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>