[PATCH] USB: mark various usb tables const

patch below marks various USB tables and variables as const so that they
end up in .rodata section and don't cacheline share with things that get
written to. For the non-array variables it also allows gcc to optimize
more.

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2 files changed, 4 insertions, 4 deletions

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 93de121f52a8..248279e44c99 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -658,7 +658,7 @@ static int acm_tty_ioctl(struct tty_struct *tty, struct file *file, unsigned int
         return -ENOIOCTLCMD;
 }
 
-static __u32 acm_tty_speed[] = {
+static const __u32 acm_tty_speed[] = {
         0, 50, 75, 110, 134, 150, 200, 300, 600,
         1200, 1800, 2400, 4800, 9600, 19200, 38400,
         57600, 115200, 230400, 460800, 500000, 576000,
@@ -666,7 +666,7 @@ static __u32 acm_tty_speed[] = {
         2500000, 3000000, 3500000, 4000000
 };
 
-static __u8 acm_tty_size[] = {
+static const __u8 acm_tty_size[] = {
         5, 6, 7, 8
 };
 
diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c
index 10406b857ac7..6918037e209c 100644
--- a/drivers/usb/class/usblp.c
+++ b/drivers/usb/class/usblp.c
@@ -199,7 +199,7 @@ struct quirk_printer_struct {
 #define USBLP_QUIRK_BIDIR       0x1     /* reports bidir but requires unidirectional mode (no INs/reads) */
 #define USBLP_QUIRK_USB_INIT    0x2     /* needs vendor USB init string */
 
-static struct quirk_printer_struct quirk_printers[] = {
+static const struct quirk_printer_struct quirk_printers[] = {
         { 0x03f0, 0x0004, USBLP_QUIRK_BIDIR }, /* HP DeskJet 895C */
         { 0x03f0, 0x0104, USBLP_QUIRK_BIDIR }, /* HP DeskJet 880C */
         { 0x03f0, 0x0204, USBLP_QUIRK_BIDIR }, /* HP DeskJet 815C */
@@ -301,7 +301,7 @@ static void usblp_bulk_write(struct urb *urb, struct pt_regs *regs)
  * Get and print printer errors.
  */
 
-static char *usblp_messages[] = { "ok", "out of paper", "off-line", "on fire" };
+static const char *usblp_messages[] = { "ok", "out of paper", "off-line", "on fire" };
 
 static int usblp_check_status(struct usblp *usblp, int err)
 {