linux-kernel - [PATCH v2 1/4] input: mouse: synaptics: Replace NOOP with suitable commentary

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Message-Id: <20201126133607.3212484-2-lee.jones@linaro.org>
Date:   Thu, 26 Nov 2020 13:36:04 +0000
From:   Lee Jones <lee.jones@...aro.org>
To:     lee.jones@...aro.org
Cc:     linux-kernel@...r.kernel.org,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Henrik Rydberg <rydberg@...math.org>,
        Peter Osterlund <petero2@...ia.com>,
        Stefan Gmeiner <riddlebox@...esurf.ch>,
        "C. Scott Ananian" <cananian@...mni.priceton.edu>,
        Bruce Kalk <kall@...pass.com>,
        this to <linux-input@...r.kernel.org>
Subject: [PATCH v2 1/4] input: mouse: synaptics: Replace NOOP with suitable commentary

Fixes the following W=1 kernel build warning(s):

 drivers/input/mouse/synaptics.c: In function ‘synaptics_process_packet’:
 drivers/input/mouse/synaptics.c:1110:6: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body]

Cc: Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc: Henrik Rydberg <rydberg@...math.org>
Cc: Peter Osterlund <petero2@...ia.com>
Cc: Stefan Gmeiner <riddlebox@...esurf.ch>
Cc: "C. Scott Ananian" <cananian@...mni.priceton.edu>
Cc: Bruce Kalk <kall@...pass.com>
Cc: this to <linux-input@...r.kernel.org>
Cc: linux-input@...r.kernel.org
Signed-off-by: Lee Jones <lee.jones@...aro.org>
---
 drivers/input/mouse/synaptics.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 8fb7b4385ded9..3cc8b76629fa2 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -1106,8 +1106,11 @@ static void synaptics_process_packet(struct psmouse *psmouse)
 					num_fingers = hw.w + 2;
 				break;
 			case 2:
-				if (SYN_MODEL_PEN(info->model_id))
-					;   /* Nothing, treat a pen as a single finger */
+				/*
+				 * Keep defaults
+				 *
+				 * SYN_MODEL_PEN: Treat pens as a single finger
+				 */
 				break;
 			case 4 ... 15:
 				if (SYN_CAP_PALMDETECT(info->capabilities))
-- 
2.25.1