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TTY: switch tty_insert_flip_char

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Now, we start converting tty buffer functions to actually use
tty_port. This will allow us to get rid of the need of tty in many
call sites. Only tty_port will needed and hence no more
tty_port_tty_get in those paths.

tty_insert_flip_char is the next one to proceed. This one is used all
over the code, so the patch is huge.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby
2013-01-03 15:53:03 +01:00
committed by Greg Kroah-Hartman
parent 2f69335710
commit 92a19f9cec
76 changed files with 297 additions and 286 deletions
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15
drivers/tty/serial/efm32-uart.c
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@@ -194,8 +194,7 @@ static void efm32_uart_break_ctl(struct uart_port *port, int ctl)
/* not possible without fiddling with gpios */
}
static void efm32_uart_rx_chars(struct efm32_uart_port *efm_port,
struct tty_struct *tty)
static void efm32_uart_rx_chars(struct efm32_uart_port *efm_port)
{
struct uart_port *port = &efm_port->port;
@@ -237,8 +236,8 @@ static void efm32_uart_rx_chars(struct efm32_uart_port *efm_port,
rxdata & UARTn_RXDATAX_RXDATA__MASK))
continue;
if (tty && (rxdata & port->ignore_status_mask) == 0)
tty_insert_flip_char(tty,
if ((rxdata & port->ignore_status_mask) == 0)
tty_insert_flip_char(&port->state->port,
rxdata & UARTn_RXDATAX_RXDATA__MASK, flag);
}
}
@@ -249,15 +248,16 @@ static irqreturn_t efm32_uart_rxirq(int irq, void *data)
u32 irqflag = efm32_uart_read32(efm_port, UARTn_IF);
int handled = IRQ_NONE;
struct uart_port *port = &efm_port->port;
struct tty_port *tport = &port->state->port;
struct tty_struct *tty;
spin_lock(&port->lock);
tty = tty_kref_get(port->state->port.tty);
tty = tty_kref_get(tport->tty);
if (irqflag & UARTn_IF_RXDATAV) {
efm32_uart_write32(efm_port, UARTn_IF_RXDATAV, UARTn_IFC);
efm32_uart_rx_chars(efm_port, tty);
efm32_uart_rx_chars(efm_port);
handled = IRQ_HANDLED;
}
@@ -265,8 +265,7 @@ static irqreturn_t efm32_uart_rxirq(int irq, void *data)
if (irqflag & UARTn_IF_RXOF) {
efm32_uart_write32(efm_port, UARTn_IF_RXOF, UARTn_IFC);
port->icount.overrun++;
if (tty)
tty_insert_flip_char(tty, 0, TTY_OVERRUN);
tty_insert_flip_char(tport, 0, TTY_OVERRUN);
handled = IRQ_HANDLED;
}