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authorGwendal Grignou <gwendal@chromium.org>2019-03-11 16:07:55 -0700
committerchrome-bot <chrome-bot@chromium.org>2019-03-26 04:42:56 -0700
commitac77140b7f4f42075d2377fc9d956a636b05aacf (patch)
treec64c6a30916ff741a2ab235141f7bd071cd54483 /driver/touchpad_st.c
parentbb266fc26fc05d4ab22de6ad7bce5b477c9f9140 (diff)
downloadchrome-ec-ac77140b7f4f42075d2377fc9d956a636b05aacf.tar.gz
common: bit change 1 << constants with BIT(constants)
Mechanical replacement of bit operation where operand is a constant. More bit operation exist, but prone to errors. Reveal a bug in npcx: chip/npcx/system-npcx7.c:114:54: error: conversion from 'long unsigned int' to 'uint8_t' {aka 'volatile unsigned char'} changes value from '16777215' to '255' [-Werror=overflow] BUG=None BRANCH=None TEST=None Change-Id: I006614026143fa180702ac0d1cc2ceb1b3c6eeb0 Signed-off-by: Gwendal Grignou <gwendal@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/1518660 Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
Diffstat (limited to 'driver/touchpad_st.c')
-rw-r--r--driver/touchpad_st.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/driver/touchpad_st.c b/driver/touchpad_st.c
index 8c4a5cf2dd..e4327a2054 100644
--- a/driver/touchpad_st.c
+++ b/driver/touchpad_st.c
@@ -196,7 +196,7 @@ static int st_tp_parse_finger(struct usb_hid_touchpad_report *report,
if (event->evt_id == ST_TP_EVENT_ID_ENTER_POINTER)
touch_slot |= 1 << id;
else if (event->evt_id == ST_TP_EVENT_ID_LEAVE_POINTER)
- touch_slot &= ~(1 << id);
+ touch_slot &= ~BIT(id);
/* We cannot report more fingers */
if (i >= ARRAY_SIZE(report->finger)) {