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/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index 1be8bea..d10aa3d 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -345,7 +345,7 @@
void usb_serial_generic_process_read_urb(struct urb *urb)
{
struct usb_serial_port *port = urb->context;
- char *ch = (char *)urb->transfer_buffer;
+ char *ch = urb->transfer_buffer;
int i;
if (!urb->actual_length)
@@ -355,13 +355,13 @@
* stuff like 3G modems, so shortcircuit it in the 99.9999999% of
* cases where the USB serial is not a console anyway.
*/
- if (!port->port.console || !port->sysrq) {
- tty_insert_flip_string(&port->port, ch, urb->actual_length);
- } else {
+ if (port->sysrq) {
for (i = 0; i < urb->actual_length; i++, ch++) {
if (!usb_serial_handle_sysrq_char(port, *ch))
tty_insert_flip_char(&port->port, *ch, TTY_NORMAL);
}
+ } else {
+ tty_insert_flip_string(&port->port, ch, urb->actual_length);
}
tty_flip_buffer_push(&port->port);
}
@@ -417,7 +417,7 @@
/*
* Make sure URB is marked as free before checking the throttled flag
* to avoid racing with unthrottle() on another CPU. Matches the
- * smp_mb() in unthrottle().
+ * smp_mb__after_atomic() in unthrottle().
*/
smp_mb__after_atomic();
@@ -489,7 +489,7 @@
* Matches the smp_mb__after_atomic() in
* usb_serial_generic_read_bulk_callback().
*/
- smp_mb();
+ smp_mb__after_atomic();
usb_serial_generic_submit_read_urbs(port, GFP_KERNEL);
}
@@ -571,10 +571,10 @@
}
EXPORT_SYMBOL_GPL(usb_serial_generic_get_icount);
-#ifdef CONFIG_MAGIC_SYSRQ
+#if defined(CONFIG_USB_SERIAL_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
int usb_serial_handle_sysrq_char(struct usb_serial_port *port, unsigned int ch)
{
- if (port->sysrq && port->port.console) {
+ if (port->sysrq) {
if (ch && time_before(jiffies, port->sysrq)) {
handle_sysrq(ch);
port->sysrq = 0;
@@ -584,16 +584,13 @@
}
return 0;
}
-#else
-int usb_serial_handle_sysrq_char(struct usb_serial_port *port, unsigned int ch)
-{
- return 0;
-}
-#endif
EXPORT_SYMBOL_GPL(usb_serial_handle_sysrq_char);
int usb_serial_handle_break(struct usb_serial_port *port)
{
+ if (!port->port.console)
+ return 0;
+
if (!port->sysrq) {
port->sysrq = jiffies + HZ*5;
return 1;
@@ -602,6 +599,7 @@
return 0;
}
EXPORT_SYMBOL_GPL(usb_serial_handle_break);
+#endif
/**
* usb_serial_handle_dcd_change - handle a change of carrier detect state
@@ -609,12 +607,10 @@
* @tty: tty for the port
* @status: new carrier detect status, nonzero if active
*/
-void usb_serial_handle_dcd_change(struct usb_serial_port *usb_port,
+void usb_serial_handle_dcd_change(struct usb_serial_port *port,
struct tty_struct *tty, unsigned int status)
{
- struct tty_port *port = &usb_port->port;
-
- dev_dbg(&usb_port->dev, "%s - status %d\n", __func__, status);
+ dev_dbg(&port->dev, "%s - status %d\n", __func__, status);
if (tty) {
struct tty_ldisc *ld = tty_ldisc_ref(tty);
@@ -627,7 +623,7 @@
}
if (status)
- wake_up_interruptible(&port->open_wait);
+ wake_up_interruptible(&port->port.open_wait);
else if (tty && !C_CLOCAL(tty))
tty_hangup(tty);
}