lkml.org 
[lkml]   [2020]   [Jul]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 5/5] virtio_console: Constify some static variables
Date
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>
---
drivers/char/virtio_console.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 00c5e3acee46..896f0ba9ba3c 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -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
--
2.27.0
\
 
 \ /
  Last update: 2020-07-01 23:49    [W:1.757 / U:0.108 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site