From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from viti.kaiser.cx (viti.kaiser.cx [85.214.81.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 75A423D95 for ; Sun, 27 Mar 2022 18:10:08 +0000 (UTC) Received: from dslb-178-004-173-219.178.004.pools.vodafone-ip.de ([178.4.173.219] helo=martin-debian-2.paytec.ch) by viti.kaiser.cx with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.89) (envelope-from ) id 1nYXKv-00019B-7Q; Sun, 27 Mar 2022 20:09:57 +0200 From: Martin Kaiser To: Greg Kroah-Hartman Cc: Larry Finger , Phillip Potter , Michael Straube , linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org, David Laight , Martin Kaiser , kernel test robot Subject: [PATCH v2 1/9] staging: r8188eu: use ieee80211 define for version check Date: Sun, 27 Mar 2022 20:09:36 +0200 Message-Id: <20220327180944.712545-2-martin@kaiser.cx> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220327180944.712545-1-martin@kaiser.cx> References: <20220323074859.177425-1-martin@kaiser.cx> <20220327180944.712545-1-martin@kaiser.cx> Precedence: bulk X-Mailing-List: linux-staging@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Use the IEEE80211_FCTL_VERS define to check the version number of a received frame. Covert IEEE80211_FCTL_VERS to le16 before using it as a mask for fc, which is also an le16 value. The ieee80211_... helper functions use the same approach. Reported-by: kernel test robot Signed-off-by: Martin Kaiser --- v2 - fix a sparse warning, conver IEEE80211_FCTL_VERS to little endian drivers/staging/r8188eu/core/rtw_recv.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/staging/r8188eu/core/rtw_recv.c b/drivers/staging/r8188eu/core/rtw_recv.c index 8800ea4825ff..fc7f2a559f9b 100644 --- a/drivers/staging/r8188eu/core/rtw_recv.c +++ b/drivers/staging/r8188eu/core/rtw_recv.c @@ -1063,7 +1063,6 @@ static int validate_recv_frame(struct adapter *adapter, struct recv_frame *precv struct rx_pkt_attrib *pattrib = &precv_frame->attrib; u8 *ptr = precv_frame->rx_data; __le16 fc = *(__le16 *)ptr; - u8 ver = (unsigned char)(*ptr) & 0x3; struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv; if (pmlmeext->sitesurvey_res.state == SCAN_PROCESS) { @@ -1072,8 +1071,7 @@ static int validate_recv_frame(struct adapter *adapter, struct recv_frame *precv pmlmeext->channel_set[ch_set_idx].rx_count++; } - /* add version chk */ - if (ver != 0) + if ((fc & cpu_to_le16(IEEE80211_FCTL_VERS)) != 0) return _FAIL; pattrib->to_fr_ds = get_tofr_ds(ptr); -- 2.30.2