[PATCH] Input: synaptics - do not mix logical and bitwise operations
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: 2017-03-23 17:35:51
Also in:
lkml
Subsystem:
input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers:
Dmitry Torokhov, Linus Torvalds
Let's stop using !!x to reduce value of trackstick button expression to 0/1 and use shift instead. This removes the following sparse warning: CHECK drivers/input/mouse/synaptics.c drivers/input/mouse/synaptics.c:943:79: warning: dubious: !x | y Also, the bits we are testing are not capabilities, so lets drop "_CAP" suffix from macro names. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> --- drivers/input/mouse/synaptics.c | 6 +++--- drivers/input/mouse/synaptics.h | 6 +++--- 2 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 86ed45bda7bb..dd6caa0e7e09 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c@@ -940,9 +940,9 @@ static void synaptics_report_ext_buttons(struct psmouse *psmouse, u8 pt_buttons; /* The trackstick expects at most 3 buttons */ - pt_buttons = SYN_CAP_EXT_BUTTON_STICK_L(hw->ext_buttons) | - SYN_CAP_EXT_BUTTON_STICK_R(hw->ext_buttons) << 1 | - SYN_CAP_EXT_BUTTON_STICK_M(hw->ext_buttons) << 2; + pt_buttons = SYN_EXT_BUTTON_STICK_L(hw->ext_buttons) | + SYN_EXT_BUTTON_STICK_R(hw->ext_buttons) << 1 | + SYN_EXT_BUTTON_STICK_M(hw->ext_buttons) << 2; serio_interrupt(priv->pt_port, PSMOUSE_OOB_EXTRA_BTNS, SERIO_OOB_DATA);
diff --git a/drivers/input/mouse/synaptics.h b/drivers/input/mouse/synaptics.h
index fc93481cf183..31652d98b8f7 100644
--- a/drivers/input/mouse/synaptics.h
+++ b/drivers/input/mouse/synaptics.h@@ -112,9 +112,9 @@ #define SYN_CAP_EXT_BUTTONS_STICK(ex10) ((ex10) & 0x010000) #define SYN_CAP_SECUREPAD(ex10) ((ex10) & 0x020000) -#define SYN_CAP_EXT_BUTTON_STICK_L(eb) (!!((eb) & 0x01)) -#define SYN_CAP_EXT_BUTTON_STICK_M(eb) (!!((eb) & 0x02)) -#define SYN_CAP_EXT_BUTTON_STICK_R(eb) (!!((eb) & 0x04)) +#define SYN_EXT_BUTTON_STICK_L(eb) (((eb) & BIT(0)) >> 0) +#define SYN_EXT_BUTTON_STICK_M(eb) (((eb) & BIT(1)) >> 1) +#define SYN_EXT_BUTTON_STICK_R(eb) (((eb) & BIT(2)) >> 2) /* synaptics modes query bits */ #define SYN_MODE_ABSOLUTE(m) ((m) & (1 << 7))
--
2.12.1.500.gab5fba24ee-goog
--
Dmitry