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authorArjan van de Ven <arjan@infradead.org>2005-11-29 09:43:42 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2006-01-04 13:51:40 -0800
commit4c4c9432a6c916729c7296c47fe93b053a73e20c (patch)
tree7f02f456359259da8bae5e3d32fc4411311ee135 /drivers/usb/class
parent9fe6fcd8ccb2c8c661dfd1e07e3122aef31a67d4 (diff)
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[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>
Diffstat (limited to 'drivers/usb/class')
-rw-r--r--drivers/usb/class/cdc-acm.c4
-rw-r--r--drivers/usb/class/usblp.c4
2 files changed, 4 insertions, 4 deletions
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 93de121..248279e 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 10406b8..6918037 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)
{