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-rw-r--r--arch/um/Kconfig.common1
-rw-r--r--arch/um/Kconfig.net2
-rw-r--r--arch/um/Kconfig.um8
-rw-r--r--arch/um/drivers/chan.h3
-rw-r--r--arch/um/drivers/chan_kern.c25
-rw-r--r--arch/um/drivers/line.c7
-rw-r--r--arch/um/drivers/mconsole_kern.c2
-rw-r--r--arch/um/drivers/net_kern.c26
-rw-r--r--arch/um/include/shared/net_kern.h1
-rw-r--r--arch/um/kernel/signal.c15
10 files changed, 31 insertions, 59 deletions
diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common
index 648121b037d5..bceee6623b00 100644
--- a/arch/um/Kconfig.common
+++ b/arch/um/Kconfig.common
@@ -12,6 +12,7 @@ config UML
select GENERIC_CPU_DEVICES
select GENERIC_IO
select GENERIC_CLOCKEVENTS
+ select TTY # Needed for line.c
config MMU
bool
diff --git a/arch/um/Kconfig.net b/arch/um/Kconfig.net
index 3160b1a5adb7..820a56f00332 100644
--- a/arch/um/Kconfig.net
+++ b/arch/um/Kconfig.net
@@ -157,7 +157,7 @@ config UML_NET_MCAST
config UML_NET_PCAP
bool "pcap transport"
- depends on UML_NET && EXPERIMENTAL
+ depends on UML_NET
help
The pcap transport makes a pcap packet stream on the host look
like an ethernet device inside UML. This is useful for making
diff --git a/arch/um/Kconfig.um b/arch/um/Kconfig.um
index bf87f25eb2de..a7520c90f62d 100644
--- a/arch/um/Kconfig.um
+++ b/arch/um/Kconfig.um
@@ -45,8 +45,8 @@ config HOSTFS
say Y or M here; otherwise say N.
config HPPFS
- tristate "HoneyPot ProcFS (EXPERIMENTAL)"
- depends on EXPERIMENTAL && PROC_FS
+ tristate "HoneyPot ProcFS"
+ depends on PROC_FS
help
hppfs (HoneyPot ProcFS) is a filesystem which allows UML /proc
entries to be overridden, removed, or fabricated from the host.
@@ -96,7 +96,7 @@ config MAGIC_SYSRQ
unless you really know what this hack does.
config SMP
- bool "Symmetric multi-processing support (EXPERIMENTAL)"
+ bool "Symmetric multi-processing support"
default n
depends on BROKEN
help
@@ -126,7 +126,7 @@ config NR_CPUS
default "32"
config HIGHMEM
- bool "Highmem support (EXPERIMENTAL)"
+ bool "Highmem support"
depends on !64BIT && BROKEN
default n
help
diff --git a/arch/um/drivers/chan.h b/arch/um/drivers/chan.h
index 02b5a76e98d9..78f1b8999964 100644
--- a/arch/um/drivers/chan.h
+++ b/arch/um/drivers/chan.h
@@ -27,8 +27,7 @@ struct chan {
void *data;
};
-extern void chan_interrupt(struct line *line,
- struct tty_struct *tty, int irq);
+extern void chan_interrupt(struct line *line, int irq);
extern int parse_chan_pair(char *str, struct line *line, int device,
const struct chan_opts *opts, char **error_out);
extern int write_chan(struct chan *chan, const char *buf, int len,
diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c
index e9a0abc6a32f..15c553c239a1 100644
--- a/arch/um/drivers/chan_kern.c
+++ b/arch/um/drivers/chan_kern.c
@@ -81,12 +81,6 @@ static const struct chan_ops not_configged_ops = {
};
#endif /* CONFIG_NOCONFIG_CHAN */
-static void tty_receive_char(struct tty_struct *tty, char ch)
-{
- if (tty)
- tty_insert_flip_char(tty, ch, TTY_NORMAL);
-}
-
static int open_one_chan(struct chan *chan)
{
int fd, err;
@@ -137,11 +131,9 @@ void chan_enable_winch(struct chan *chan, struct tty_struct *tty)
static void line_timer_cb(struct work_struct *work)
{
struct line *line = container_of(work, struct line, task.work);
- struct tty_struct *tty = tty_port_tty_get(&line->port);
if (!line->throttled)
- chan_interrupt(line, tty, line->driver->read_irq);
- tty_kref_put(tty);
+ chan_interrupt(line, line->driver->read_irq);
}
int enable_chan(struct line *line)
@@ -552,8 +544,9 @@ int parse_chan_pair(char *str, struct line *line, int device,
return 0;
}
-void chan_interrupt(struct line *line, struct tty_struct *tty, int irq)
+void chan_interrupt(struct line *line, int irq)
{
+ struct tty_port *port = &line->port;
struct chan *chan = line->chan_in;
int err;
char c;
@@ -562,21 +555,24 @@ void chan_interrupt(struct line *line, struct tty_struct *tty, int irq)
goto out;
do {
- if (tty && !tty_buffer_request_room(tty, 1)) {
+ if (!tty_buffer_request_room(port, 1)) {
schedule_delayed_work(&line->task, 1);
goto out;
}
err = chan->ops->read(chan->fd, &c, chan->data);
if (err > 0)
- tty_receive_char(tty, c);
+ tty_insert_flip_char(port, c, TTY_NORMAL);
} while (err > 0);
if (err == 0)
reactivate_fd(chan->fd, irq);
if (err == -EIO) {
if (chan->primary) {
- if (tty != NULL)
+ struct tty_struct *tty = tty_port_tty_get(&line->port);
+ if (tty != NULL) {
tty_hangup(tty);
+ tty_kref_put(tty);
+ }
if (line->chan_out != chan)
close_one_chan(line->chan_out, 1);
}
@@ -585,6 +581,5 @@ void chan_interrupt(struct line *line, struct tty_struct *tty, int irq)
return;
}
out:
- if (tty)
- tty_flip_buffer_push(tty);
+ tty_flip_buffer_push(port);
}
diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c
index 9ffc28bd4b7a..f1b38571f94e 100644
--- a/arch/um/drivers/line.c
+++ b/arch/um/drivers/line.c
@@ -19,11 +19,10 @@ static irqreturn_t line_interrupt(int irq, void *data)
{
struct chan *chan = data;
struct line *line = chan->line;
- struct tty_struct *tty = tty_port_tty_get(&line->port);
if (line)
- chan_interrupt(line, tty, irq);
- tty_kref_put(tty);
+ chan_interrupt(line, irq);
+
return IRQ_HANDLED;
}
@@ -234,7 +233,7 @@ void line_unthrottle(struct tty_struct *tty)
struct line *line = tty->driver_data;
line->throttled = 0;
- chan_interrupt(line, tty, line->driver->read_irq);
+ chan_interrupt(line, line->driver->read_irq);
/*
* Maybe there is enough stuff pending that calling the interrupt
diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c
index 49e3b49e552f..4bd82ac0210f 100644
--- a/arch/um/drivers/mconsole_kern.c
+++ b/arch/um/drivers/mconsole_kern.c
@@ -123,7 +123,7 @@ void mconsole_log(struct mc_request *req)
void mconsole_proc(struct mc_request *req)
{
- struct vfsmount *mnt = current->nsproxy->pid_ns->proc_mnt;
+ struct vfsmount *mnt = task_active_pid_ns(current)->proc_mnt;
char *buf;
int len;
struct file *file;
diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c
index b1314ebf1f72..d8926c303629 100644
--- a/arch/um/drivers/net_kern.c
+++ b/arch/um/drivers/net_kern.c
@@ -274,8 +274,8 @@ static void uml_net_poll_controller(struct net_device *dev)
static void uml_net_get_drvinfo(struct net_device *dev,
struct ethtool_drvinfo *info)
{
- strcpy(info->driver, DRIVER_NAME);
- strcpy(info->version, "42");
+ strlcpy(info->driver, DRIVER_NAME, sizeof(info->driver));
+ strlcpy(info->version, "42", sizeof(info->version));
}
static const struct ethtool_ops uml_net_ethtool_ops = {
@@ -293,8 +293,9 @@ static void uml_net_user_timer_expire(unsigned long _conn)
#endif
}
-static int setup_etheraddr(char *str, unsigned char *addr, char *name)
+static void setup_etheraddr(struct net_device *dev, char *str)
{
+ unsigned char *addr = dev->dev_addr;
char *end;
int i;
@@ -334,13 +335,12 @@ static int setup_etheraddr(char *str, unsigned char *addr, char *name)
addr[0] | 0x02, addr[1], addr[2], addr[3], addr[4],
addr[5]);
}
- return 0;
+ return;
random:
printk(KERN_INFO
- "Choosing a random ethernet address for device %s\n", name);
- eth_random_addr(addr);
- return 1;
+ "Choosing a random ethernet address for device %s\n", dev->name);
+ eth_hw_addr_random(dev);
}
static DEFINE_SPINLOCK(devices_lock);
@@ -392,7 +392,6 @@ static void eth_configure(int n, void *init, char *mac,
struct net_device *dev;
struct uml_net_private *lp;
int err, size;
- int random_mac;
size = transport->private_size + sizeof(struct uml_net_private);
@@ -419,9 +418,9 @@ static void eth_configure(int n, void *init, char *mac,
*/
snprintf(dev->name, sizeof(dev->name), "eth%d", n);
- random_mac = setup_etheraddr(mac, device->mac, dev->name);
+ setup_etheraddr(dev, mac);
- printk(KERN_INFO "Netdevice %d (%pM) : ", n, device->mac);
+ printk(KERN_INFO "Netdevice %d (%pM) : ", n, dev->dev_addr);
lp = netdev_priv(dev);
/* This points to the transport private data. It's still clear, but we
@@ -468,17 +467,12 @@ static void eth_configure(int n, void *init, char *mac,
init_timer(&lp->tl);
spin_lock_init(&lp->lock);
lp->tl.function = uml_net_user_timer_expire;
- memcpy(lp->mac, device->mac, sizeof(lp->mac));
+ memcpy(lp->mac, dev->dev_addr, sizeof(lp->mac));
if ((transport->user->init != NULL) &&
((*transport->user->init)(&lp->user, dev) != 0))
goto out_unregister;
- /* don't use eth_mac_addr, it will not work here */
- memcpy(dev->dev_addr, device->mac, ETH_ALEN);
- if (random_mac)
- dev->addr_assign_type |= NET_ADDR_RANDOM;
-
dev->mtu = transport->user->mtu;
dev->netdev_ops = &uml_netdev_ops;
dev->ethtool_ops = &uml_net_ethtool_ops;
diff --git a/arch/um/include/shared/net_kern.h b/arch/um/include/shared/net_kern.h
index 5c367f22595b..012ac87d4900 100644
--- a/arch/um/include/shared/net_kern.h
+++ b/arch/um/include/shared/net_kern.h
@@ -18,7 +18,6 @@ struct uml_net {
struct net_device *dev;
struct platform_device pdev;
int index;
- unsigned char mac[ETH_ALEN];
};
struct uml_net_private {
diff --git a/arch/um/kernel/signal.c b/arch/um/kernel/signal.c
index db18eb6124e1..3e831b3fd07b 100644
--- a/arch/um/kernel/signal.c
+++ b/arch/um/kernel/signal.c
@@ -122,18 +122,3 @@ int do_signal(void)
{
return kern_do_signal(&current->thread.regs);
}
-
-/*
- * Atomically swap in the new signal mask, and wait for a signal.
- */
-long sys_sigsuspend(int history0, int history1, old_sigset_t mask)
-{
- sigset_t blocked;
- siginitset(&blocked, mask);
- return sigsuspend(&blocked);
-}
-
-long sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss)
-{
- return do_sigaltstack(uss, uoss, PT_REGS_SP(&current->thread.regs));
-}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.