linux-kernel - [PATCH 093/141] mac80211: Fix fall-through warnings for Clang

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Message-ID: <1a9c4e8248e76e1361edbe2471a68773d87f0b67.1605896060.git.gustavoars@kernel.org>
Date:   Fri, 20 Nov 2020 12:36:45 -0600
From:   "Gustavo A. R. Silva" <gustavoars@...nel.org>
To:     Johannes Berg <johannes@...solutions.net>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>
Subject: [PATCH 093/141] mac80211: Fix fall-through warnings for Clang

In preparation to enable -Wimplicit-fallthrough for Clang, fix multiple
warnings by explicitly adding multiple break statements 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>
---
 net/mac80211/cfg.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 7276e66ae435..1d1a4f3c8d66 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -405,6 +405,7 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 	case WLAN_CIPHER_SUITE_WEP104:
 		if (WARN_ON_ONCE(fips_enabled))
 			return -EINVAL;
+		break;
 	case WLAN_CIPHER_SUITE_CCMP:
 	case WLAN_CIPHER_SUITE_CCMP_256:
 	case WLAN_CIPHER_SUITE_AES_CMAC:
@@ -3307,6 +3308,7 @@ static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
 			if (cfg80211_get_chandef_type(&params->chandef) !=
 			    cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
 				return -EINVAL;
+			break;
 		case NL80211_CHAN_WIDTH_5:
 		case NL80211_CHAN_WIDTH_10:
 		case NL80211_CHAN_WIDTH_20_NOHT:
-- 
2.27.0