X-Git-Url: https://git.liburcu.org/?a=blobdiff_plain;f=src%2Fwrapper%2Fsplice.c;fp=src%2Fwrapper%2Fsplice.c;h=0000000000000000000000000000000000000000;hb=dfdb34fd8576fba33510491aef5cd5f6f67b56b8;hp=51b9673fd606fc1da089936ae7c04c0254ab4802;hpb=ff024e6646f0d75935e8eb277cce508c593a23ad;p=lttng-modules.git

diff --git a/src/wrapper/splice.c b/src/wrapper/splice.c
deleted file mode 100644
index 51b9673f..00000000
--- a/src/wrapper/splice.c
+++ /dev/null
@@ -1,64 +0,0 @@
-/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
- *
- * wrapper/splice.c
- *
- * wrapper around splice_to_pipe. Using KALLSYMS to get its address when
- * available, else we need to have a kernel that exports this function to GPL
- * modules. The export was introduced in kernel 4.2.
- *
- * Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- */
-
-#include <lttng/kernel-version.h>
-
-#ifdef CONFIG_KALLSYMS
-
-#include <linux/kallsyms.h>
-#include <linux/fs.h>
-#include <linux/splice.h>
-#include <wrapper/kallsyms.h>
-
-static
-ssize_t (*splice_to_pipe_sym)(struct pipe_inode_info *pipe,
-			      struct splice_pipe_desc *spd);
-
-ssize_t wrapper_splice_to_pipe(struct pipe_inode_info *pipe,
-			       struct splice_pipe_desc *spd)
-{
-	if (!splice_to_pipe_sym)
-		splice_to_pipe_sym = (void *) kallsyms_lookup_funcptr("splice_to_pipe");
-	if (splice_to_pipe_sym) {
-		return splice_to_pipe_sym(pipe, spd);
-	} else {
-		printk_once(KERN_WARNING "LTTng: splice_to_pipe symbol lookup failed.\n");
-		return -ENOSYS;
-	}
-}
-
-/*
- * 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>
-#include <linux/splice.h>
-
-ssize_t wrapper_splice_to_pipe(struct pipe_inode_info *pipe,
-			       struct splice_pipe_desc *spd)
-{
-	return splice_to_pipe(pipe, spd);
-}
-
-#endif