linux-kernel - [PATCH 15/17] media: cros-ec-cec: Use cros_ec_send_cmd

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 30 Jan 2020 12:31:06 -0800
From:   Prashant Malani <pmalani@...omium.org>
To:     linux-kernel@...r.kernel.org
Cc:     Prashant Malani <pmalani@...omium.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Benson Leung <bleung@...omium.org>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Guenter Roeck <groeck@...omium.org>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Neil Armstrong <narmstrong@...libre.com>,
        Gwendal Grignou <gwendal@...omium.org>,
        linux-media@...r.kernel.org (open list:MEDIA INPUT INFRASTRUCTURE
        (V4L/DVB))
Subject: [PATCH 15/17] media: cros-ec-cec: Use cros_ec_send_cmd_msg()

Replace cros_ec_cmd_xfer_status() with cros_ec_send_cmd_msg() which does
the message buffer setup and cleanup, but is located in platform/chrome
and used by other drivers.

Signed-off-by: Prashant Malani <pmalani@...omium.org>
---
 .../media/platform/cros-ec-cec/cros-ec-cec.c  | 39 +++++++------------
 1 file changed, 14 insertions(+), 25 deletions(-)

diff --git a/drivers/media/platform/cros-ec-cec/cros-ec-cec.c b/drivers/media/platform/cros-ec-cec/cros-ec-cec.c
index f048e89947850e..0ee7354dca9724 100644
--- a/drivers/media/platform/cros-ec-cec/cros-ec-cec.c
+++ b/drivers/media/platform/cros-ec-cec/cros-ec-cec.c
@@ -94,18 +94,14 @@ static int cros_ec_cec_set_log_addr(struct cec_adapter *adap, u8 logical_addr)
 {
 	struct cros_ec_cec *cros_ec_cec = adap->priv;
 	struct cros_ec_device *cros_ec = cros_ec_cec->cros_ec;
-	struct {
-		struct cros_ec_command msg;
-		struct ec_params_cec_set data;
-	} __packed msg = {};
+	struct ec_params_cec_set data;
 	int ret;
 
-	msg.msg.command = EC_CMD_CEC_SET;
-	msg.msg.outsize = sizeof(msg.data);
-	msg.data.cmd = CEC_CMD_LOGICAL_ADDRESS;
-	msg.data.val = logical_addr;
+	data.cmd = CEC_CMD_LOGICAL_ADDRESS;
+	data.val = logical_addr;
 
-	ret = cros_ec_cmd_xfer_status(cros_ec, &msg.msg);
+	ret = cros_ec_send_cmd_msg(cros_ec, 0, EC_CMD_CEC_SET, &data,
+				   sizeof(data), NULL, 0);
 	if (ret < 0) {
 		dev_err(cros_ec->dev,
 			"error setting CEC logical address on EC: %d\n", ret);
@@ -120,17 +116,14 @@ static int cros_ec_cec_transmit(struct cec_adapter *adap, u8 attempts,
 {
 	struct cros_ec_cec *cros_ec_cec = adap->priv;
 	struct cros_ec_device *cros_ec = cros_ec_cec->cros_ec;
-	struct {
-		struct cros_ec_command msg;
-		struct ec_params_cec_write data;
-	} __packed msg = {};
+	struct ec_params_cec_write data = {};
 	int ret;
 
-	msg.msg.command = EC_CMD_CEC_WRITE_MSG;
 	msg.msg.outsize = cec_msg->len;
-	memcpy(msg.data.msg, cec_msg->msg, cec_msg->len);
+	memcpy(data.msg, cec_msg->msg, cec_msg->len);
 
-	ret = cros_ec_cmd_xfer_status(cros_ec, &msg.msg);
+	ret = cros_ec_send_cmd_msg(cros_ec, 0, EC_CMD_CEC_WRITE_MSG,
+				   &data, sizeof(cec_msg->len), NULL, 0);
 	if (ret < 0) {
 		dev_err(cros_ec->dev,
 			"error writing CEC msg on EC: %d\n", ret);
@@ -144,18 +137,14 @@ static int cros_ec_cec_adap_enable(struct cec_adapter *adap, bool enable)
 {
 	struct cros_ec_cec *cros_ec_cec = adap->priv;
 	struct cros_ec_device *cros_ec = cros_ec_cec->cros_ec;
-	struct {
-		struct cros_ec_command msg;
-		struct ec_params_cec_set data;
-	} __packed msg = {};
+	struct ec_params_cec_set data = {0};
 	int ret;
 
-	msg.msg.command = EC_CMD_CEC_SET;
-	msg.msg.outsize = sizeof(msg.data);
-	msg.data.cmd = CEC_CMD_ENABLE;
-	msg.data.val = enable;
+	data.cmd = CEC_CMD_ENABLE;
+	data.val = enable;
 
-	ret = cros_ec_cmd_xfer_status(cros_ec, &msg.msg);
+	ret = cros_ec_send_cmd_msg(cros_ec, 0, EC_CMD_CEC_SET, &data,
+				   sizeof(data), NULL, 0);
 	if (ret < 0) {
 		dev_err(cros_ec->dev,
 			"error %sabling CEC on EC: %d\n",
-- 
2.25.0.341.g760bfbb309-goog