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authorArnd Bergmann <arnd@arndb.de>2020-01-08 22:44:43 +0100
committerDavid S. Miller <davem@davemloft.net>2020-01-08 15:02:21 -0800
commit542d3065f2b1a60a0cfc259c9a36faa470761d78 (patch)
treee7e56b87ead23a5a17b93718cab55301ced582ee /net/socket.c
parentdaea5b4dc16c3edc90392a512492dae504f1a37a (diff)
socket: fix unused-function warning
When procfs is disabled, the fdinfo code causes a harmless warning: net/socket.c:1000:13: error: 'sock_show_fdinfo' defined but not used [-Werror=unused-function] static void sock_show_fdinfo(struct seq_file *m, struct file *f) Move the function definition up so we can use a single #ifdef around it. Fixes: b4653342b151 ("net: Allow to show socket-specific information in /proc/[pid]/fdinfo/[fd]") Suggested-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/socket.c')
-rw-r--r--net/socket.c23
1 files changed, 12 insertions, 11 deletions
diff --git a/net/socket.c b/net/socket.c
index 51bf34995bcb..b79a05de7c6e 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -128,7 +128,18 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
-static void sock_show_fdinfo(struct seq_file *m, struct file *f);
+
+#ifdef CONFIG_PROC_FS
+static void sock_show_fdinfo(struct seq_file *m, struct file *f)
+{
+ struct socket *sock = f->private_data;
+
+ if (sock->ops->show_fdinfo)
+ sock->ops->show_fdinfo(m, sock);
+}
+#else
+#define sock_show_fdinfo NULL
+#endif
/*
* Socket files have a set of 'special' operations as well as the generic file ones. These don't appear
@@ -151,9 +162,7 @@ static const struct file_operations socket_file_ops = {
.sendpage = sock_sendpage,
.splice_write = generic_splice_sendpage,
.splice_read = sock_splice_read,
-#ifdef CONFIG_PROC_FS
.show_fdinfo = sock_show_fdinfo,
-#endif
};
/*
@@ -997,14 +1006,6 @@ static ssize_t sock_write_iter(struct kiocb *iocb, struct iov_iter *from)
return res;
}
-static void sock_show_fdinfo(struct seq_file *m, struct file *f)
-{
- struct socket *sock = f->private_data;
-
- if (sock->ops->show_fdinfo)
- sock->ops->show_fdinfo(m, sock);
-}
-
/*
* Atomic setting of ioctl hooks to avoid race
* with module unload.