linux-kernel - [PATCH 5.4~6.12] Input: sparcspkr - avoid unannotated fall-through

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Message-ID: <5C0E9B30D2B39A0D+20250619065241.37834-1-wangyuli@uniontech.com>
Date: Thu, 19 Jun 2025 14:52:41 +0800
From: WangYuli <wangyuli@...ontech.com>
To: gregkh@...uxfoundation.org,
	sashal@...nel.org,
	stable@...r.kernel.org
Cc: dmitry.torokhov@...il.com,
	javier.carrasco.cruz@...il.com,
	u.kleine-koenig@...libre.com,
	wens@...e.org,
	wangyuli@...ontech.com,
	linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 5.4~6.12] Input: sparcspkr - avoid unannotated fall-through

[ Upstream commit 8b1d858cbd4e1800e9336404ba7892b5a721230d ]

Fix follow warnings with clang-21i (and reformat for clarity):
  drivers/input/misc/sparcspkr.c:78:3: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
     78 |                 case SND_TONE: break;
        |                 ^
  drivers/input/misc/sparcspkr.c:78:3: note: insert 'break;' to avoid fall-through
     78 |                 case SND_TONE: break;
        |                 ^
        |                 break;
  drivers/input/misc/sparcspkr.c:113:3: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
    113 |                 case SND_TONE: break;
        |                 ^
  drivers/input/misc/sparcspkr.c:113:3: note: insert 'break;' to avoid fall-through
    113 |                 case SND_TONE: break;
        |                 ^
        |                 break;
  2 warnings generated.

Signed-off-by: WangYuli <wangyuli@...ontech.com>
Link: https://lore.kernel.org/r/6730E40353C76908+20250415052439.155051-1-wangyuli@uniontech.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
---
 drivers/input/misc/sparcspkr.c | 22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/drivers/input/misc/sparcspkr.c b/drivers/input/misc/sparcspkr.c
index 20020cbc0752..a94699f2bbc6 100644
--- a/drivers/input/misc/sparcspkr.c
+++ b/drivers/input/misc/sparcspkr.c
@@ -75,9 +75,14 @@ static int bbc_spkr_event(struct input_dev *dev, unsigned int type, unsigned int
 		return -1;
 
 	switch (code) {
-		case SND_BELL: if (value) value = 1000;
-		case SND_TONE: break;
-		default: return -1;
+	case SND_BELL:
+		if (value)
+			value = 1000;
+		break;
+	case SND_TONE:
+		break;
+	default:
+		return -1;
 	}
 
 	if (value > 20 && value < 32767)
@@ -113,9 +118,14 @@ static int grover_spkr_event(struct input_dev *dev, unsigned int type, unsigned
 		return -1;
 
 	switch (code) {
-		case SND_BELL: if (value) value = 1000;
-		case SND_TONE: break;
-		default: return -1;
+	case SND_BELL:
+		if (value)
+			value = 1000;
+		break;
+	case SND_TONE:
+		break;
+	default:
+		return -1;
 	}
 
 	if (value > 20 && value < 32767)
-- 
2.50.0