headers: smp_lock.h redux

[firefly-linux-kernel-4.4.55.git] / drivers / char / synclink.c

diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c
index afd0b26ca05681210edd0cc0f22b01497eea3e37..813552f14884427ea785b1ac0e2bec080c704a6a 100644 (file)
--- a/drivers/char/synclink.c
+++ b/drivers/char/synclink.c
@@ -81,6 +81,7 @@
 #include <linux/mm.h>
 #include <linux/seq_file.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/delay.h>
 #include <linux/netdevice.h>
 #include <linux/vmalloc.h>
@@ -3247,13 +3248,16 @@ static int carrier_raised(struct tty_port *port)
        return (info->serial_signals & SerialSignal_DCD) ? 1 : 0;
 }
 
-static void raise_dtr_rts(struct tty_port *port)
+static void dtr_rts(struct tty_port *port, int on)
 {
        struct mgsl_struct *info = container_of(port, struct mgsl_struct, port);
        unsigned long flags;
 
        spin_lock_irqsave(&info->irq_spinlock,flags);
-       info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR;
+       if (on)
+               info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR;
+       else
+               info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
        usc_set_serial_signals(info);
        spin_unlock_irqrestore(&info->irq_spinlock,flags);
 }
@@ -4258,7 +4262,7 @@ static void mgsl_add_device( struct mgsl_struct *info )
 
 static const struct tty_port_operations mgsl_port_ops = {
        .carrier_raised = carrier_raised,
-       .raise_dtr_rts = raise_dtr_rts,
+       .dtr_rts = dtr_rts,
 };