[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>
diff --git a/drivers/usb/media/ov511.c b/drivers/usb/media/ov511.c
index 8df4f9d..3a0e8ce 100644
--- a/drivers/usb/media/ov511.c
+++ b/drivers/usb/media/ov511.c
@@ -211,7 +211,7 @@
/* Number of times to retry a failed I2C transaction. Increase this if you
* are getting "Failed to read sensor ID..." */
-static int i2c_detect_tries = 5;
+static const int i2c_detect_tries = 5;
/* MMX support is present in kernel and CPU. Checked upon decomp module load. */
#if defined(__i386__) || defined(__x86_64__)