linux-hardening - [PATCH][next] staging: rtl8188eu: Fix fall-through warnings for Clang

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Message-ID: <20210528200650.GA39289@embeddedor>
Date:   Fri, 28 May 2021 15:06:50 -0500
From:   "Gustavo A. R. Silva" <gustavoars@...nel.org>
To:     Larry Finger <Larry.Finger@...inger.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        linux-hardening@...r.kernel.org
Subject: [PATCH][next] staging: rtl8188eu: 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 just 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. These are some of those last remaining
      warnings.

 drivers/staging/rtl8188eu/core/rtw_mlme_ext.c  | 1 +
 drivers/staging/rtl8188eu/core/rtw_wlan_util.c | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
index b4d81d3a856c..6803e9327eb2 100644
--- a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
+++ b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
@@ -3378,6 +3378,7 @@ static unsigned int OnAssocRsp(struct adapter *padapter,
 			break;
 		case WLAN_EID_ERP_INFO:
 			ERP_IE_handler(padapter, pIE);
+			break;
 		default:
 			break;
 		}
diff --git a/drivers/staging/rtl8188eu/core/rtw_wlan_util.c b/drivers/staging/rtl8188eu/core/rtw_wlan_util.c
index 3e244e949995..c9043f49ec9e 100644
--- a/drivers/staging/rtl8188eu/core/rtw_wlan_util.c
+++ b/drivers/staging/rtl8188eu/core/rtw_wlan_util.c
@@ -1029,6 +1029,7 @@ unsigned int is_ap_in_tkip(struct adapter *padapter)
 			case WLAN_EID_RSN:
 				if (!memcmp((pIE->data + 8), RSN_TKIP_CIPHER, 4))
 					return true;
+				break;
 			default:
 				break;
 			}
@@ -1226,6 +1227,7 @@ unsigned char check_assoc_AP(u8 *pframe, uint len)
 			} else {
 				break;
 			}
+			break;
 
 		default:
 			break;
-- 
2.27.0