serial: amba-pl011: mark vendor_zte as __maybe_unused

The pl011 driver has gone back and forth on the definition of the
ZTE specific variation of the hardware definitions, but the
current state is that the vendor definition is left in place
yet unused:

drivers/tty/serial/amba-pl011.c:190:27: warning: 'vendor_zte' defined but not used [-Wunused-variable]

I don't know what the plan forward is to get this code to work,
but the current behavior is a bit annoying as we get a warning
whenever we build this driver.

This patch does not help us to make it work, but at least
shuts up the warning.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 7ec758718920 ("tty: amba-pl011: add support for ZTE UART (EXPERIMENTAL)")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 618763b2539adaa0e56af79c96429ddb58de1482..500232ad38f32c1a1b4ee358078a3ae4ee247689 100644 (file)
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -187,7 +187,7 @@ static const u16 pl011_zte_offsets[REG_ARRAY_SIZE] = {
        [REG_DMACR] = ZX_UART011_DMACR,
 };
 
-static struct vendor_data vendor_zte = {
+static struct vendor_data vendor_zte __maybe_unused = {
        .reg_offset             = pl011_zte_offsets,
        .access_32b             = true,
        .ifls                   = UART011_IFLS_RX4_8|UART011_IFLS_TX4_8,