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Linux 4.4-rc6

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Merge tag 'v4.4-rc6' into devel

Linux 4.4-rc6
This commit is contained in:
Linus Walleij 2015-12-21 09:36:21 +01:00
commit 0529357f10
1309 changed files with 16347 additions and 11897 deletions
Download patch file Download diff file Expand all files Collapse all files

24
drivers/tty/n_tty.c
View file

@ -169,7 +169,7 @@ static inline int tty_copy_to_user(struct tty_struct *tty,
{
struct n_tty_data *ldata = tty->disc_data;
tty_audit_add_data(tty, to, n, ldata->icanon);
tty_audit_add_data(tty, from, n, ldata->icanon);
return copy_to_user(to, from, n);
}
@ -2054,13 +2054,13 @@ static int canon_copy_from_read_buf(struct tty_struct *tty,
size_t eol;
size_t tail;
int ret, found = 0;
bool eof_push = 0;
/* N.B. avoid overrun if nr == 0 */
n = min(*nr, smp_load_acquire(&ldata->canon_head) - ldata->read_tail);
if (!n)
if (!*nr)
return 0;
n = min(*nr + 1, smp_load_acquire(&ldata->canon_head) - ldata->read_tail);
tail = ldata->read_tail & (N_TTY_BUF_SIZE - 1);
size = min_t(size_t, tail + n, N_TTY_BUF_SIZE);
@ -2081,12 +2081,11 @@ static int canon_copy_from_read_buf(struct tty_struct *tty,
n = eol - tail;
if (n > N_TTY_BUF_SIZE)
n += N_TTY_BUF_SIZE;
n += found;
c = n;
c = n + found;
if (found && !ldata->push && read_buf(ldata, eol) == __DISABLED_CHAR) {
n--;
eof_push = !n && ldata->read_tail != ldata->line_start;
if (!found || read_buf(ldata, eol) != __DISABLED_CHAR) {
c = min(*nr, c);
n = c;
}
n_tty_trace("%s: eol:%zu found:%d n:%zu c:%zu size:%zu more:%zu\n",
@ -2116,7 +2115,7 @@ static int canon_copy_from_read_buf(struct tty_struct *tty,
ldata->push = 0;
tty_audit_push(tty);
}
return eof_push ? -EAGAIN : 0;
return 0;
}
extern ssize_t redirected_tty_write(struct file *, const char __user *,
@ -2273,10 +2272,7 @@ static ssize_t n_tty_read(struct tty_struct *tty, struct file *file,
if (ldata->icanon && !L_EXTPROC(tty)) {
retval = canon_copy_from_read_buf(tty, &b, &nr);
if (retval == -EAGAIN) {
retval = 0;
continue;
} else if (retval)
if (retval)
break;
} else {
int uncopied;

1
drivers/tty/serial/8250/8250_fsl.c
View file

@ -60,3 +60,4 @@ int fsl8250_handle_irq(struct uart_port *port)
spin_unlock_irqrestore(&up->port.lock, flags);
return 1;
}
EXPORT_SYMBOL_GPL(fsl8250_handle_irq);

8
drivers/tty/serial/8250/8250_uniphier.c
View file

@ -115,12 +115,16 @@ static void uniphier_serial_out(struct uart_port *p, int offset, int value)
*/
static int uniphier_serial_dl_read(struct uart_8250_port *up)
{
return readl(up->port.membase + UNIPHIER_UART_DLR);
int offset = UNIPHIER_UART_DLR << up->port.regshift;
return readl(up->port.membase + offset);
}
static void uniphier_serial_dl_write(struct uart_8250_port *up, int value)
{
writel(value, up->port.membase + UNIPHIER_UART_DLR);
int offset = UNIPHIER_UART_DLR << up->port.regshift;
writel(value, up->port.membase + offset);
}
static int uniphier_of_serial_setup(struct device *dev, struct uart_port *port,

1
drivers/tty/serial/8250/Kconfig
View file

@ -373,6 +373,7 @@ config SERIAL_8250_MID
depends on SERIAL_8250 && PCI
select HSU_DMA if SERIAL_8250_DMA
select HSU_DMA_PCI if X86_INTEL_MID
select RATIONAL
help
Selecting this option will enable handling of the extra features
present on the UART found on Intel Medfield SOC and various other

2
drivers/tty/serial/Kconfig
View file

@ -1539,7 +1539,6 @@ config SERIAL_FSL_LPUART
tristate "Freescale lpuart serial port support"
depends on HAS_DMA
select SERIAL_CORE
select SERIAL_EARLYCON
help
Support for the on-chip lpuart on some Freescale SOCs.
@ -1547,6 +1546,7 @@ config SERIAL_FSL_LPUART_CONSOLE
bool "Console on Freescale lpuart serial port"
depends on SERIAL_FSL_LPUART=y
select SERIAL_CORE_CONSOLE
select SERIAL_EARLYCON
help
If you have enabled the lpuart serial port on the Freescale SoCs,
you can make it the console by answering Y to this option.

2
drivers/tty/serial/bcm63xx_uart.c
View file

@ -474,7 +474,7 @@ static int bcm_uart_startup(struct uart_port *port)
/* register irq and enable rx interrupts */
ret = request_irq(port->irq, bcm_uart_interrupt, 0,
bcm_uart_type(port), port);
dev_name(port->dev), port);
if (ret)
return ret;
bcm_uart_writel(port, UART_RX_INT_MASK, UART_IR_REG);

2
drivers/tty/serial/earlycon.c
View file

@ -115,6 +115,7 @@ static int __init register_earlycon(char *buf, const struct earlycon_id *match)
if (buf && !parse_options(&early_console_dev, buf))
buf = NULL;
spin_lock_init(&port->lock);
port->uartclk = BASE_BAUD * 16;
if (port->mapbase)
port->membase = earlycon_map(port->mapbase, 64);
@ -202,6 +203,7 @@ int __init of_setup_earlycon(unsigned long addr,
int err;
struct uart_port *port = &early_console_dev.port;
spin_lock_init(&port->lock);
port->iotype = UPIO_MEM;
port->mapbase = addr;
port->uartclk = BASE_BAUD * 16;

2
drivers/tty/serial/etraxfs-uart.c
View file

@ -894,7 +894,7 @@ static int etraxfs_uart_probe(struct platform_device *pdev)
up->regi_ser = of_iomap(np, 0);
up->port.dev = &pdev->dev;
up->gpios = mctrl_gpio_init(&pdev->dev, 0);
up->gpios = mctrl_gpio_init_noauto(&pdev->dev, 0);
if (IS_ERR(up->gpios))
return PTR_ERR(up->gpios);

2
drivers/tty/serial/sh-sci.c
View file

@ -1437,7 +1437,7 @@ static void sci_request_dma(struct uart_port *port)
sg_init_table(sg, 1);
s->rx_buf[i] = buf;
sg_dma_address(sg) = dma;
sg->length = s->buf_len_rx;
sg_dma_len(sg) = s->buf_len_rx;
buf += s->buf_len_rx;
dma += s->buf_len_rx;

2
drivers/tty/tty_audit.c
View file

@ -265,7 +265,7 @@ static struct tty_audit_buf *tty_audit_buf_get(struct tty_struct *tty,
*
* Audit @data of @size from @tty, if necessary.
*/
void tty_audit_add_data(struct tty_struct *tty, unsigned char *data,
void tty_audit_add_data(struct tty_struct *tty, const void *data,
size_t size, unsigned icanon)
{
struct tty_audit_buf *buf;

2
drivers/tty/tty_buffer.c
View file

@ -450,7 +450,7 @@ receive_buf(struct tty_struct *tty, struct tty_buffer *head, int count)
count = disc->ops->receive_buf2(tty, p, f, count);
else {
count = min_t(int, count, tty->receive_room);
if (count)
if (count && disc->ops->receive_buf)
disc->ops->receive_buf(tty, p, f, count);
}
return count;

4
drivers/tty/tty_io.c
View file

@ -1282,18 +1282,22 @@ int tty_send_xchar(struct tty_struct *tty, char ch)
int was_stopped = tty->stopped;
if (tty->ops->send_xchar) {
down_read(&tty->termios_rwsem);
tty->ops->send_xchar(tty, ch);
up_read(&tty->termios_rwsem);
return 0;
}
if (tty_write_lock(tty, 0) < 0)
return -ERESTARTSYS;
down_read(&tty->termios_rwsem);
if (was_stopped)
start_tty(tty);
tty->ops->write(tty, &ch, 1);
if (was_stopped)
stop_tty(tty);
up_read(&tty->termios_rwsem);
tty_write_unlock(tty);
return 0;
}

4
drivers/tty/tty_ioctl.c
View file

@ -1147,16 +1147,12 @@ int n_tty_ioctl_helper(struct tty_struct *tty, struct file *file,
spin_unlock_irq(&tty->flow_lock);
break;
case TCIOFF:
down_read(&tty->termios_rwsem);
if (STOP_CHAR(tty) != __DISABLED_CHAR)
retval = tty_send_xchar(tty, STOP_CHAR(tty));
up_read(&tty->termios_rwsem);
break;
case TCION:
down_read(&tty->termios_rwsem);
if (START_CHAR(tty) != __DISABLED_CHAR)
retval = tty_send_xchar(tty, START_CHAR(tty));
up_read(&tty->termios_rwsem);
break;
default:
return -EINVAL;

2
drivers/tty/tty_ldisc.c
View file

@ -592,7 +592,7 @@ int tty_set_ldisc(struct tty_struct *tty, int ldisc)
/* Restart the work queue in case no characters kick it off. Safe if
already running */
schedule_work(&tty->port->buf.work);
tty_buffer_restart_work(tty->port);
tty_unlock(tty);
return retval;