[SERIAL] mark several serial tables const
This patch marks a few serial data structures const, moving them to
.rodata where they won't false-share cachelines with things that get
written to.
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index e08510d..d2bcd1f 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -102,7 +102,7 @@
#define SERIAL_PORT_DFNS
#endif
-static struct old_serial_port old_serial_port[] = {
+static const struct old_serial_port old_serial_port[] = {
SERIAL_PORT_DFNS /* defined in asm/serial.h */
};