Commit 8b66c917 authored Jul 01, 2020 by Rikard Falkeborn Committed by Greg Kroah-Hartman Jul 10, 2020

virtio_console: Constify some static variables



The id_table and feature_table pointers in struct virtio_driver are
pointers to const. Mark the corresponding static variables const to
allow the compiler to put them in read-only memory.

Before:
   text    data     bss     dec     hex filename
  25447     713      76   26236    667c drivers/char/virtio_console.o

After:
   text    data     bss     dec     hex filename
  25488     673      76   26237    667d drivers/char/virtio_console.o

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Amit Shah <amit@kernel.org>
Link: https://lore.kernel.org/r/20200701200950.30314-6-rikard.falkeborn@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 729082ed

drivers/char/virtio_console.c

+4 −4

Original line number	Diff line number	Diff line
		@@ -2112,24 +2112,24 @@ static int virtcons_probe(struct virtio_device *vdev)
		return err;
		}

		static struct virtio_device_id id_table[] = {
		static const struct virtio_device_id id_table[] = {
		{ VIRTIO_ID_CONSOLE, VIRTIO_DEV_ANY_ID },
		{ 0 },
		};

		static unsigned int features[] = {
		static const unsigned int features[] = {
		VIRTIO_CONSOLE_F_SIZE,
		VIRTIO_CONSOLE_F_MULTIPORT,
		};

		static struct virtio_device_id rproc_serial_id_table[] = {
		static const struct virtio_device_id rproc_serial_id_table[] = {
		#if IS_ENABLED(CONFIG_REMOTEPROC)
		{ VIRTIO_ID_RPROC_SERIAL, VIRTIO_DEV_ANY_ID },
		#endif
		{ 0 },
		};

		static unsigned int rproc_serial_features[] = {
		static const unsigned int rproc_serial_features[] = {
		};

		#ifdef CONFIG_PM_SLEEP