From 7d60a7a6cd04c34014e763b5d7ed35d6366e42aa Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Thu, 14 Mar 2019 13:44:52 +0100
Subject: [PATCH] compat_ioctl: move rfcomm handlers into driver
Git-commit: 7d60a7a6cd04c34014e763b5d7ed35d6366e42aa
Patch-mainline: v5.5-rc1
References: jsc#SLE-13430
All these ioctl commands are compatible, so we can handle
them with a trivial wrapper in rfcomm/sock.c and remove
the listing in fs/compat_ioctl.c.
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
fs/compat_ioctl.c | 6 ------
net/bluetooth/rfcomm/sock.c | 14 ++++++++++++--
2 files changed, 12 insertions(+), 8 deletions(-)
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -44,7 +44,6 @@
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_sock.h>
-#include <net/bluetooth/rfcomm.h>
#ifdef CONFIG_BLOCK
#include <linux/cdrom.h>
@@ -701,11 +700,6 @@ COMPATIBLE_IOCTL(HCIUARTGETPROTO)
COMPATIBLE_IOCTL(HCIUARTGETDEVICE)
COMPATIBLE_IOCTL(HCIUARTSETFLAGS)
COMPATIBLE_IOCTL(HCIUARTGETFLAGS)
-COMPATIBLE_IOCTL(RFCOMMCREATEDEV)
-COMPATIBLE_IOCTL(RFCOMMRELEASEDEV)
-COMPATIBLE_IOCTL(RFCOMMGETDEVLIST)
-COMPATIBLE_IOCTL(RFCOMMGETDEVINFO)
-COMPATIBLE_IOCTL(RFCOMMSTEALDLC)
/* Misc. */
COMPATIBLE_IOCTL(PCIIOC_CONTROLLER)
COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_IO)
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -24,7 +24,7 @@
/*
* RFCOMM sockets.
*/
-
+#include <linux/compat.h>
#include <linux/export.h>
#include <linux/debugfs.h>
#include <linux/sched/signal.h>
@@ -909,6 +909,13 @@ static int rfcomm_sock_ioctl(struct sock
return err;
}
+#ifdef CONFIG_COMPAT
+static int rfcomm_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+{
+ return rfcomm_sock_ioctl(sock, cmd, (unsigned long)compat_ptr(arg));
+}
+#endif
+
static int rfcomm_sock_shutdown(struct socket *sock, int how)
{
struct sock *sk = sock->sk;
@@ -1042,7 +1049,10 @@ static const struct proto_ops rfcomm_soc
.gettstamp = sock_gettstamp,
.poll = bt_sock_poll,
.socketpair = sock_no_socketpair,
- .mmap = sock_no_mmap
+ .mmap = sock_no_mmap,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = rfcomm_sock_compat_ioctl,
+#endif
};
static const struct net_proto_family rfcomm_sock_family_ops = {