Merge branch 'core/percpu' into perfcounters/core

Conflicts:
	arch/x86/include/asm/pda.h

We merge tip/core/percpu into tip/perfcounters/core because of a
semantic and contextual conflict: the former eliminates the PDA,
while the latter extends it with apic_perf_irqs field.

Resolve the conflict by moving the new field to the irq_cpustat
structure on 64-bit too.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 0 insertions, 3 deletions

diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 080ade223d53..cfcfd5ab06ce 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -511,9 +511,6 @@ static void usb_serial_port_work(struct work_struct *work)
 
         dbg("%s - port %d", __func__, port->number);
 
-        if (!port)
-                return;
-
         tty = tty_port_tty_get(&port->port);
         if (!tty)
                 return;