linux-kernel - [PATCH][next] r8169: Fix fall-through warning for Clang

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Message-ID: <20210528202327.GA39994@embeddedor>
Date:   Fri, 28 May 2021 15:23:27 -0500
From:   "Gustavo A. R. Silva" <gustavoars@...nel.org>
To:     Heiner Kallweit <hkallweit1@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     nic_swsd@...ltek.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        linux-hardening@...r.kernel.org
Subject: [PATCH][next] r8169: Fix fall-through warning for Clang

In preparation to enable -Wimplicit-fallthrough for Clang, fix a warning
by explicitly adding a break statement instead of letting the code fall
through to the next case.

Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
---
JFYI: We had thousands of these sorts of warnings and now we are down
      to just 25 in linux-next. This is one of those last remaining
      warnings.

 drivers/net/ethernet/realtek/r8169_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index 1663e0486496..64f94a3fe646 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -4115,6 +4115,7 @@ static unsigned int rtl_quirk_packet_padto(struct rtl8169_private *tp,
 	case RTL_GIGA_MAC_VER_61:
 	case RTL_GIGA_MAC_VER_63:
 		padto = max_t(unsigned int, padto, ETH_ZLEN);
+		break;
 	default:
 		break;
 	}
-- 
2.27.0