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/core.c b/net/bluetooth/rfcomm/core.c
index 3a9e9d9..f2bacb4 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -40,7 +40,6 @@
static bool disable_cfc;
static bool l2cap_ertm;
static int channel_mtu = -1;
-static unsigned int l2cap_mtu = RFCOMM_MAX_L2CAP_MTU;
static struct task_struct *rfcomm_thread;
@@ -73,8 +72,6 @@
/* ---- RFCOMM frame parsing macros ---- */
#define __get_dlci(b) ((b & 0xfc) >> 2)
-#define __get_channel(b) ((b & 0xf8) >> 3)
-#define __get_dir(b) ((b & 0x04) >> 2)
#define __get_type(b) ((b & 0xef))
#define __test_ea(b) ((b & 0x01))
@@ -87,7 +84,6 @@
#define __ctrl(type, pf) (((type & 0xef) | (pf << 4)))
#define __dlci(dir, chn) (((chn & 0x1f) << 1) | dir)
#define __srv_channel(dlci) (dlci >> 1)
-#define __dir(dlci) (dlci & 0x01)
#define __len8(len) (((len) << 1) | 1)
#define __len16(len) ((len) << 1)
@@ -483,7 +479,7 @@
/* if closing a dlc in a session that hasn't been started,
* just close and unlink the dlc
*/
- /* fall through */
+ fallthrough;
default:
rfcomm_dlc_clear_timer(d);
@@ -752,7 +748,8 @@
/* Set L2CAP options */
sk = sock->sk;
lock_sock(sk);
- l2cap_pi(sk)->chan->imtu = l2cap_mtu;
+ /* Set MTU to 0 so L2CAP can auto select the MTU */
+ l2cap_pi(sk)->chan->imtu = 0;
l2cap_pi(sk)->chan->sec_level = sec_level;
if (l2cap_ertm)
l2cap_pi(sk)->chan->mode = L2CAP_MODE_ERTM;
@@ -2039,7 +2036,8 @@
/* Set L2CAP options */
sk = sock->sk;
lock_sock(sk);
- l2cap_pi(sk)->chan->imtu = l2cap_mtu;
+ /* Set MTU to 0 so L2CAP can auto select the MTU */
+ l2cap_pi(sk)->chan->imtu = 0;
release_sock(sk);
/* Start listening on the socket */
@@ -2237,9 +2235,6 @@
module_param(channel_mtu, int, 0644);
MODULE_PARM_DESC(channel_mtu, "Default MTU for the RFCOMM channel");
-module_param(l2cap_mtu, uint, 0644);
-MODULE_PARM_DESC(l2cap_mtu, "Default MTU for the L2CAP connection");
-
module_param(l2cap_ertm, bool, 0644);
MODULE_PARM_DESC(l2cap_ertm, "Use L2CAP ERTM mode for connection");
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 = {