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[34.88.148.216]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-54b09590fd3sm1151796e87.188.2025.03.31.09.38.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 31 Mar 2025 09:38:44 -0700 (PDT) From: Ricardo Ribalda Date: Mon, 31 Mar 2025 16:38:42 +0000 Subject: [PATCH 1/2] media: cec: extron-da-hd-4k-plus: Fix Wformat-truncation Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250331-v614-v1-1-9bc69a873720@chromium.org> References: <20250331-v614-v1-0-9bc69a873720@chromium.org> In-Reply-To: <20250331-v614-v1-0-9bc69a873720@chromium.org> To: Hans Verkuil , Mauro Carvalho Chehab , Hans de Goede , Sakari Ailus , Andy Shevchenko , Greg Kroah-Hartman Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-staging@lists.linux.dev, Ricardo Ribalda X-Mailer: b4 0.14.2 Convince gcc8 that the port, initiator and destination fits in a single char, despite the fact that they are 4 bits wide. drivers/media/cec/usb/extron-da-hd-4k-plus/extron-da-hd-4k-plus.c:1014:44: = warning: 'DCEC' directive output may be truncated writing 4 bytes into a re= gion of size between 0 and 53 [-Wformat-truncation=3D] Signed-off-by: Ricardo Ribalda --- drivers/media/cec/usb/extron-da-hd-4k-plus/extron-da-hd-4k-plus.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/media/cec/usb/extron-da-hd-4k-plus/extron-da-hd-4k-plu= s.c b/drivers/media/cec/usb/extron-da-hd-4k-plus/extron-da-hd-4k-plus.c index cfbfc4c1b2e67fec9434aa6852ab465ad8c11225..e1a2a676bcaf9c313041ce8074c= 85636cfe4b2da 100644 --- a/drivers/media/cec/usb/extron-da-hd-4k-plus/extron-da-hd-4k-plus.c +++ b/drivers/media/cec/usb/extron-da-hd-4k-plus/extron-da-hd-4k-plus.c @@ -1012,8 +1012,9 @@ static int extron_cec_adap_transmit(struct cec_adapte= r *adap, u8 attempts, for (i =3D 0; i < msg->len - 1; i++) sprintf(buf + i * 3, "%%%02X", msg->msg[i + 1]); snprintf(cmd, sizeof(cmd), "W%c%u*%u*%u*%sDCEC", - port->direction, port->port.port, - cec_msg_initiator(msg), cec_msg_destination(msg), buf); + port->direction, port->port.port % 10, + cec_msg_initiator(msg) % 10, cec_msg_destination(msg) % 10, + buf); return extron_send_and_wait(port->extron, port, cmd, NULL); } =20 --=20 2.49.0.472.ge94155a9ec-goog