linux-kernel - [PATCH 4/4] rpmsg: Add a removable attribute to the rpmsg device

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Date:   Fri, 4 Jun 2021 11:14:06 +0200
From:   Arnaud Pouliquen <arnaud.pouliquen@...s.st.com>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        Ohad Ben-Cohen <ohad@...ery.com>,
        Mathieu Poirier <mathieu.poirier@...aro.org>
CC:     <linux-remoteproc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <arnaud.pouliquen@...s.st.com>
Subject: [PATCH 4/4] rpmsg: Add a removable attribute to the rpmsg device

Adds a new attribute to the rpmsg device to expose in sysfs the
the removability of an rpmsg device.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@...s.st.com>
---
 drivers/rpmsg/rpmsg_core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/rpmsg/rpmsg_core.c b/drivers/rpmsg/rpmsg_core.c
index e5daee4f9373..b2543ef4a92f 100644
--- a/drivers/rpmsg/rpmsg_core.c
+++ b/drivers/rpmsg/rpmsg_core.c
@@ -413,6 +413,7 @@ rpmsg_show_attr(src, src, "0x%x\n");
 rpmsg_show_attr(dst, dst, "0x%x\n");
 rpmsg_show_attr(announce, announce ? "true" : "false", "%s\n");
 rpmsg_string_attr(driver_override, driver_override);
+rpmsg_show_attr(removable, us_removable ? "true" : "false", "%s\n");
 
 static ssize_t modalias_show(struct device *dev,
 			     struct device_attribute *attr, char *buf)
@@ -435,6 +436,7 @@ static struct attribute *rpmsg_dev_attrs[] = {
 	&dev_attr_src.attr,
 	&dev_attr_announce.attr,
 	&dev_attr_driver_override.attr,
+	&dev_attr_removable.attr,
 	NULL,
 };
 ATTRIBUTE_GROUPS(rpmsg_dev);
-- 
2.17.1