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From: Guenter Roeck <linux@roeck-us.net>
To: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Cc: "Jonathan Cameron" <jic23@kernel.org>,
	"Benson Leung" <bleung@chromium.org>,
	"Dmitry Torokhov" <dmitry.torokhov@gmail.com>,
	"Thierry Reding" <thierry.reding@gmail.com>,
	"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
	"Lee Jones" <lee.jones@linaro.org>,
	"Gwendal Grignou" <gwendal@chromium.org>,
	"Yu-Hsuan Hsu" <yuhsuan@chromium.org>,
	"Prashant Malani" <pmalani@chromium.org>,
	linux-iio@vger.kernel.org, linux-input@vger.kernel.org,
	linux-pwm@vger.kernel.org, linux-kernel@vger.kernel.org,
	"Guenter Roeck" <linux@roeck-us.net>,
	"Brian Norris" <briannorris@chromium.org>
Subject: [PATCH v5 5/7] platform/input: cros_ec: Replace -ENOTSUPP with -ENOPROTOOPT
Date: Sat, 22 Aug 2020 08:08:55 -0700	[thread overview]
Message-ID: <20200822150857.205775-6-linux@roeck-us.net> (raw)
In-Reply-To: <20200822150857.205775-1-linux@roeck-us.net>

-ENOTSUPP is not a SUSV4 error code and should not be used. Use
-ENOPROTOOPT instead to report EC_RES_INVALID_VERSION responses
from the EC. This matches match the NFS response for unsupported
protocol versions.

Cc: Gwendal Grignou <gwendal@chromium.org>
Cc: Yu-Hsuan Hsu <yuhsuan@chromium.org>
Cc: Prashant Malani <pmalani@chromium.org>
Cc: Brian Norris <briannorris@chromium.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
v5: No change
v4: Added Dmitry's Acked-by: tag
v3: Added patch

 drivers/input/keyboard/cros_ec_keyb.c   | 2 +-
 drivers/platform/chrome/cros_ec_proto.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/input/keyboard/cros_ec_keyb.c b/drivers/input/keyboard/cros_ec_keyb.c
index fc1793ca2f17..15d17c717081 100644
--- a/drivers/input/keyboard/cros_ec_keyb.c
+++ b/drivers/input/keyboard/cros_ec_keyb.c
@@ -348,7 +348,7 @@ static int cros_ec_keyb_info(struct cros_ec_device *ec_dev,
 	params->event_type = event_type;
 
 	ret = cros_ec_cmd_xfer_status(ec_dev, msg);
-	if (ret == -ENOTSUPP) {
+	if (ret == -ENOPROTOOPT) {
 		/* With older ECs we just return 0 for everything */
 		memset(result, 0, result_size);
 		ret = 0;
diff --git a/drivers/platform/chrome/cros_ec_proto.c b/drivers/platform/chrome/cros_ec_proto.c
index 8d52b3b4bd4e..f4727511fb41 100644
--- a/drivers/platform/chrome/cros_ec_proto.c
+++ b/drivers/platform/chrome/cros_ec_proto.c
@@ -579,7 +579,7 @@ static int cros_ec_cmd_xfer(struct cros_ec_device *ec_dev,
  *
  * Return:
  * >=0 - The number of bytes transferred
- * -ENOTSUPP - Operation not supported
+ * -ENOPROTOOPT - Operation not supported
  * -EPROTO - Protocol error
  */
 int cros_ec_cmd_xfer_status(struct cros_ec_device *ec_dev,
@@ -593,7 +593,7 @@ int cros_ec_cmd_xfer_status(struct cros_ec_device *ec_dev,
 	} else if (msg->result == EC_RES_INVALID_VERSION) {
 		dev_dbg(ec_dev->dev, "Command invalid version (err:%d)\n",
 			msg->result);
-		return -ENOTSUPP;
+		return -ENOPROTOOPT;
 	} else if (msg->result != EC_RES_SUCCESS) {
 		dev_dbg(ec_dev->dev, "Command result (err: %d)\n", msg->result);
 		return -EPROTO;
-- 
2.17.1


  parent reply	other threads:[~2020-08-22 15:09 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-22 15:08 [PATCH v5 0/7] platform/chrome: cros_ec_proto: Convert EC error codes to Linux error codes Guenter Roeck
2020-08-22 15:08 ` [PATCH v5 1/7] iio: cros_ec: Accept -EOPNOTSUPP as 'not supported' error code Guenter Roeck
2020-08-22 15:08 ` [PATCH v5 2/7] cros_ec_lightbar: Accept more error codes from cros_ec_cmd_xfer_status Guenter Roeck
2020-08-22 15:08 ` [PATCH v5 3/7] platform/chrome: cros_ec_sysfs: Report range of error codes from EC Guenter Roeck
2020-08-22 15:08 ` [PATCH v5 4/7] pwm: cros-ec: Accept more error codes from cros_ec_cmd_xfer_status Guenter Roeck
2020-08-22 15:08 ` Guenter Roeck [this message]
2020-08-22 15:08 ` [PATCH v5 6/7] platform/chrome: cros_ec_proto: Convert EC error codes to Linux error codes Guenter Roeck
2020-08-22 15:08 ` [PATCH v5 7/7] pwm: cros-ec: Simplify EC error handling Guenter Roeck
2020-09-01  9:10 ` [PATCH v5 0/7] platform/chrome: cros_ec_proto: Convert EC error codes to Linux error codes Enric Balletbo i Serra

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