openwrt/target/linux/brcm2708/patches-4.14/950-0193-hid-Reduce-default-mouse-polling-interval-to-60Hz.patch
Hauke Mehrtens f4985a22ca kernel: Update kernel 4.14 to version 4.14.187
Fixes:
- CVE-2020-10757

Run tested: ath79, ipq40xx
Build tested: ath79, ipq40xx

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2020-07-04 19:22:23 +02:00

33 lines
1.1 KiB
Diff

From cbfc3e48b94fdb14c5d8d2cc420ff6a4ad8fd39f Mon Sep 17 00:00:00 2001
From: popcornmix <popcornmix@gmail.com>
Date: Mon, 14 Jul 2014 22:02:09 +0100
Subject: [PATCH 193/454] hid: Reduce default mouse polling interval to 60Hz
Reduces overhead when using X
---
drivers/hid/usbhid/hid-core.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -48,7 +48,7 @@
* Module parameters.
*/
-static unsigned int hid_mousepoll_interval;
+static unsigned int hid_mousepoll_interval = ~0;
module_param_named(mousepoll, hid_mousepoll_interval, uint, 0644);
MODULE_PARM_DESC(mousepoll, "Polling interval of mice");
@@ -1111,7 +1111,9 @@ static int usbhid_start(struct hid_devic
/* Change the polling interval of mice and joysticks. */
switch (hid->collection->usage) {
case HID_GD_MOUSE:
- if (hid_mousepoll_interval > 0)
+ if (hid_mousepoll_interval == ~0 && interval < 16)
+ interval = 16;
+ else if (hid_mousepoll_interval != ~0 && hid_mousepoll_interval != 0)
interval = hid_mousepoll_interval;
break;
case HID_GD_JOYSTICK: