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[198.145.64.163]) by smtp.gmail.com with ESMTPSA id s24sm6614673pfm.100.2022.01.14.20.24.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 14 Jan 2022 20:24:29 -0800 (PST) From: Kees Cook To: Greg Kroah-Hartman Cc: Kees Cook , Larry Finger , Florian Schilhabel , Christophe JAILLET , Zhansaya Bagdauletkyzy , Ivan Safonov , linux-staging@lists.linux.dev, Phillip Potter , Michael Straube , Fabio Aiuto , Martin Kaiser , Yang Li , Nathan Chancellor , Hans de Goede , Dan Carpenter , Marco Cesati , Joe Perches , "Fabio M. De Francesco" , linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org Subject: [PATCH 3/3 v2] staging: rtl8712: Drop get_recvframe_data() Date: Fri, 14 Jan 2022 20:24:27 -0800 Message-Id: <20220115042427.824542-4-keescook@chromium.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220115042427.824542-1-keescook@chromium.org> References: <20220115042427.824542-1-keescook@chromium.org> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2444; h=from:subject; bh=XALIzCjDjV/dc1s/Cum+fXM6T7eQf++MOdcsN2qRBWk=; b=owEBbQKS/ZANAwAKAYly9N/cbcAmAcsmYgBh4kx71MTNBgFhaHYjw2TdY9QrTgQSd4EUNHHod4d3 aZ6LfIOJAjMEAAEKAB0WIQSlw/aPIp3WD3I+bhOJcvTf3G3AJgUCYeJMewAKCRCJcvTf3G3AJkw5D/ 9WGI+fo2Cjmg+40ISmphWU4B5hsYvQ2mUQEAAUi5z36vrDOJmaSoEz/mXfhZ4ttl4yscNKDT5Jt8oD E32BlH8dsHOzdDkHAVYXXtMXWDHvSgIHdOA9L2fwkY4LTYYRelsmSSbpZYZFvA+tkGL52cRkV6xOfL rkSLipCVvi9exLM+nyCWAMGn3AtL9TIaE5oLKaB8Z6/dS0pXUb9yaMwwdD9QGq5XJCr3OgAE73MHco 5ExyXiPhbP6+mxQxrysjyYulBzpRqzuIufeCZRbA67npJTLSQMTcHoH/cle3bh7nkGV/4cdckK85CI Z1+F3u34mwfkq3kodOh2lw6Iqavaw9FjZM7MnNa0ZtR19FCmaZmNaM3lFaiVS7B8kAc+GrRf1hm7HR Zz77BGSUenwdZvPL1BPCtxgkgCBFC2xvogGZK/ikpypd9yM/Nbdwc8dTdtiEvA8og0zP8M6zAcdd3H EmAhUUTzcpCv1rkP0efchMTATRCofoZa+G4y7pmb+FmcAZUMCpjzaUb6/jmd3yhgSjMxZgcCm/5fae XJa+x4a06Do9UxCfC8OVq2AbYsMTs8gEXGJVD/6ah26/WrWS1UEWw6o0K1lmoZZEgJYh/2+SZNH8ao mGahL2SWVp621gWMQb7GEBU35IKOcjEcCzSbV2yYKLf8ubWuhMrKQDwWpYEA== X-Developer-Key: i=keescook@chromium.org; a=openpgp; fpr=A5C3F68F229DD60F723E6E138972F4DFDC6DC026 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org As done for rtl8723bs and r8188eu, drop get_recvframe_data(), as it introduces an impossible value (NULL) for the compiler to check code paths against which could result in nonsensical warnings. Cc: Larry Finger Cc: Florian Schilhabel Cc: Greg Kroah-Hartman Cc: Christophe JAILLET Cc: Zhansaya Bagdauletkyzy Cc: Ivan Safonov Cc: linux-staging@lists.linux.dev Signed-off-by: Kees Cook --- drivers/staging/rtl8712/rtl871x_recv.c | 4 ++-- drivers/staging/rtl8712/rtl871x_recv.h | 8 -------- 2 files changed, 2 insertions(+), 10 deletions(-) diff --git a/drivers/staging/rtl8712/rtl871x_recv.c b/drivers/staging/rtl8712/rtl871x_recv.c index c23f6b376111..a069e4d98eef 100644 --- a/drivers/staging/rtl8712/rtl871x_recv.c +++ b/drivers/staging/rtl8712/rtl871x_recv.c @@ -234,7 +234,7 @@ union recv_frame *r8712_portctrl(struct _adapter *adapter, u16 ether_type; pstapriv = &adapter->stapriv; - ptr = get_recvframe_data(precv_frame); + ptr = precvframe->u.hdr.rx_data; pfhdr = &precv_frame->u.hdr; psta_addr = pfhdr->attrib.ta; psta = r8712_get_stainfo(pstapriv, psta_addr); @@ -593,7 +593,7 @@ int r8712_wlanhdr_to_ethhdr(union recv_frame *precvframe) struct _adapter *adapter = precvframe->u.hdr.adapter; struct mlme_priv *pmlmepriv = &adapter->mlmepriv; - u8 *ptr = get_recvframe_data(precvframe); /*point to frame_ctrl field*/ + u8 *ptr = precvframe->u.hdr.rx_data; /*point to frame_ctrl field*/ struct rx_pkt_attrib *pattrib = &precvframe->u.hdr.attrib; if (pattrib->encrypt) diff --git a/drivers/staging/rtl8712/rtl871x_recv.h b/drivers/staging/rtl8712/rtl871x_recv.h index 1c8298bde033..0760bccbf389 100644 --- a/drivers/staging/rtl8712/rtl871x_recv.h +++ b/drivers/staging/rtl8712/rtl871x_recv.h @@ -139,14 +139,6 @@ static inline u8 *get_rxmem(union recv_frame *precvframe) return precvframe->u.hdr.rx_head; } -static inline u8 *get_recvframe_data(union recv_frame *precvframe) -{ - /* always return rx_data */ - if (!precvframe) - return NULL; - return precvframe->u.hdr.rx_data; -} - static inline u8 *recvframe_pull(union recv_frame *precvframe, sint sz) { /* used for extract sz bytes from rx_data, update rx_data and return -- 2.30.2