Update Linux to v5.10.109
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz
Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index 90bb53a..ae6f807 100644
--- 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>
@@ -64,15 +64,13 @@
static void rfcomm_sk_state_change(struct rfcomm_dlc *d, int err)
{
struct sock *sk = d->owner, *parent;
- unsigned long flags;
if (!sk)
return;
BT_DBG("dlc %p state %ld err %d", d, d->state, err);
- local_irq_save(flags);
- bh_lock_sock(sk);
+ spin_lock_bh(&sk->sk_lock.slock);
if (err)
sk->sk_err = err;
@@ -93,8 +91,7 @@
sk->sk_state_change(sk);
}
- bh_unlock_sock(sk);
- local_irq_restore(flags);
+ spin_unlock_bh(&sk->sk_lock.slock);
if (parent && sock_flag(sk, SOCK_ZAPPED)) {
/* We have to drop DLC lock here, otherwise
@@ -221,7 +218,7 @@
case BT_CONFIG:
case BT_CONNECTED:
rfcomm_dlc_close(d, 0);
- /* fall through */
+ fallthrough;
default:
sock_set_flag(sk, SOCK_ZAPPED);
@@ -647,7 +644,8 @@
return len;
}
-static int rfcomm_sock_setsockopt_old(struct socket *sock, int optname, char __user *optval, unsigned int optlen)
+static int rfcomm_sock_setsockopt_old(struct socket *sock, int optname,
+ sockptr_t optval, unsigned int optlen)
{
struct sock *sk = sock->sk;
int err = 0;
@@ -659,7 +657,7 @@
switch (optname) {
case RFCOMM_LM:
- if (get_user(opt, (u32 __user *) optval)) {
+ if (copy_from_sockptr(&opt, optval, sizeof(u32))) {
err = -EFAULT;
break;
}
@@ -688,7 +686,8 @@
return err;
}
-static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen)
+static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname,
+ sockptr_t optval, unsigned int optlen)
{
struct sock *sk = sock->sk;
struct bt_security sec;
@@ -716,7 +715,7 @@
sec.level = BT_SECURITY_LOW;
len = min_t(unsigned int, sizeof(sec), optlen);
- if (copy_from_user((char *) &sec, optval, len)) {
+ if (copy_from_sockptr(&sec, optval, len)) {
err = -EFAULT;
break;
}
@@ -735,7 +734,7 @@
break;
}
- if (get_user(opt, (u32 __user *) optval)) {
+ if (copy_from_sockptr(&opt, optval, sizeof(u32))) {
err = -EFAULT;
break;
}
@@ -909,6 +908,13 @@
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 +1048,10 @@
.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 = {