TTY: amiserial, remove IRQ_ports
They used to work as a storage for 'info' pointer used in ISRs. They
are not really needed. Just pass the pointer through request_irq to
the handlers.
It was set to NULL and tested in the ISRs, but we do not need the
tests as we disable all the interrupts at the same places where NULL
sets were.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c
index 5540216..7607c6e 100644
--- a/drivers/tty/amiserial.c
+++ b/drivers/tty/amiserial.c
@@ -100,8 +100,6 @@
/* number of characters left in xmit buffer before we ask for more */
#define WAKEUP_CHARS 256
-static struct async_struct *IRQ_ports;
-
static unsigned char current_ctl_bits;
static void change_speed(struct async_struct *info, struct ktermios *old);
@@ -439,7 +437,7 @@
static irqreturn_t ser_vbl_int( int irq, void *data)
{
/* vbl is just a periodic interrupt we tie into to update modem status */
- struct async_struct * info = IRQ_ports;
+ struct async_struct *info = data;
/*
* TBD - is it better to unregister from this interrupt or to
* ignore it if MSI is clear ?
@@ -451,13 +449,13 @@
static irqreturn_t ser_rx_int(int irq, void *dev_id)
{
- struct async_struct * info;
+ struct serial_state *state = dev_id;
+ struct async_struct *info = state->info;
#ifdef SERIAL_DEBUG_INTR
printk("ser_rx_int...");
#endif
- info = IRQ_ports;
if (!info || !info->tty)
return IRQ_NONE;
@@ -470,14 +468,14 @@
static irqreturn_t ser_tx_int(int irq, void *dev_id)
{
- struct async_struct * info;
+ struct serial_state *state = dev_id;
+ struct async_struct *info = state->info;
if (custom.serdatr & SDR_TBE) {
#ifdef SERIAL_DEBUG_INTR
printk("ser_tx_int...");
#endif
- info = IRQ_ports;
if (!info || !info->tty)
return IRQ_NONE;
@@ -554,8 +552,6 @@
/* remember current state of the DCD and CTS bits */
current_ctl_bits = ciab.pra & (SER_DCD | SER_CTS | SER_DSR);
- IRQ_ports = info;
-
info->MCR = 0;
if (info->tty->termios->c_cflag & CBAUD)
info->MCR = SER_DTR | SER_RTS;
@@ -619,8 +615,6 @@
*/
wake_up_interruptible(&info->delta_msr_wait);
- IRQ_ports = NULL;
-
/*
* Free the IRQ, if necessary
*/
@@ -1913,8 +1907,6 @@
if (!serial_driver)
return -ENOMEM;
- IRQ_ports = NULL;
-
show_serial_version();
/* Initialize the tty_driver structure */