cns3xxx: remove 2.6.31 support

[openwrt.git] / target / linux / cns3xxx / patches-2.6.31 / 210-cns3xxx_smp_serial_fix.patch

diff --git a/target/linux/cns3xxx/patches-2.6.31/210-cns3xxx_smp_serial_fix.patch b/target/linux/cns3xxx/patches-2.6.31/210-cns3xxx_smp_serial_fix.patch
deleted file mode 100644 (file)
index a9b45ae..0000000
--- a/target/linux/cns3xxx/patches-2.6.31/210-cns3xxx_smp_serial_fix.patch
+++ /dev/null
@@ -1,39 +0,0 @@
---- a/drivers/serial/8250.c
-+++ b/drivers/serial/8250.c
-@@ -1743,6 +1743,7 @@ static void serial8250_backup_timeout(un
-       unsigned int iir, ier = 0, lsr;
-       unsigned long flags;
- 
-+      spin_lock_irqsave(&up->port.lock, flags);
-       /*
-        * Must disable interrupts or else we risk racing with the interrupt
-        * based handler.
-@@ -1760,10 +1761,8 @@ static void serial8250_backup_timeout(un
-        * the "Diva" UART used on the management processor on many HP
-        * ia64 and parisc boxes.
-        */
--      spin_lock_irqsave(&up->port.lock, flags);
-       lsr = serial_in(up, UART_LSR);
-       up->lsr_saved_flags |= lsr & LSR_SAVE_FLAGS;
--      spin_unlock_irqrestore(&up->port.lock, flags);
-       if ((iir & UART_IIR_NO_INT) && (up->ier & UART_IER_THRI) &&
-           (!uart_circ_empty(&up->port.info->xmit) || up->port.x_char) &&
-           (lsr & UART_LSR_THRE)) {
-@@ -1771,12 +1770,14 @@ static void serial8250_backup_timeout(un
-               iir |= UART_IIR_THRI;
-       }
- 
--      if (!(iir & UART_IIR_NO_INT))
--              serial8250_handle_port(up);
--
-       if (is_real_interrupt(up->port.irq))
-               serial_out(up, UART_IER, ier);
- 
-+      spin_unlock_irqrestore(&up->port.lock, flags);
-+
-+      if (!(iir & UART_IIR_NO_INT))
-+              serial8250_handle_port(up);
-+
-       /* Standard timer interval plus 0.2s to keep the port running */
-       mod_timer(&up->timer,
-               jiffies + poll_timeout(up->port.timeout) + HZ / 5);