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Date:   Thu, 4 Jul 2019 07:56:45 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Wu Hao <hao.wu@...el.com>, Alan Tull <atull@...nel.org>,
        Moritz Fischer <mdf@...nel.org>
Cc:     linux-fpga@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] fpga: dfl: use driver core functions, not sysfs ones.

This is a driver, do not call "raw" sysfs functions, instead call driver
core ones.  Specifically convert the use of sysfs_create_files() and
sysfs_remove_files() to use device_add_groups() and
device_remove_groups()

Cc: Wu Hao <hao.wu@...el.com>
Cc: Alan Tull <atull@...nel.org>
Cc: Moritz Fischer <mdf@...nel.org>
Cc: linux-fpga@...r.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/fpga/dfl-afu-main.c | 14 ++++++++------
 drivers/fpga/dfl-fme-main.c |  7 ++++---
 2 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/drivers/fpga/dfl-afu-main.c b/drivers/fpga/dfl-afu-main.c
index 02baa6a227c0..68b4d0874b93 100644
--- a/drivers/fpga/dfl-afu-main.c
+++ b/drivers/fpga/dfl-afu-main.c
@@ -141,10 +141,11 @@ id_show(struct device *dev, struct device_attribute *attr, char *buf)
 }
 static DEVICE_ATTR_RO(id);
 
-static const struct attribute *port_hdr_attrs[] = {
+static struct attribute *port_hdr_attrs[] = {
 	&dev_attr_id.attr,
 	NULL,
 };
+ATTRIBUTE_GROUPS(port_hdr);
 
 static int port_hdr_init(struct platform_device *pdev,
 			 struct dfl_feature *feature)
@@ -153,7 +154,7 @@ static int port_hdr_init(struct platform_device *pdev,
 
 	port_reset(pdev);
 
-	return sysfs_create_files(&pdev->dev.kobj, port_hdr_attrs);
+	return device_add_groups(&pdev->dev, port_hdr_groups);
 }
 
 static void port_hdr_uinit(struct platform_device *pdev,
@@ -161,7 +162,7 @@ static void port_hdr_uinit(struct platform_device *pdev,
 {
 	dev_dbg(&pdev->dev, "PORT HDR UInit.\n");
 
-	sysfs_remove_files(&pdev->dev.kobj, port_hdr_attrs);
+	device_remove_groups(&pdev->dev, port_hdr_groups);
 }
 
 static long
@@ -214,10 +215,11 @@ afu_id_show(struct device *dev, struct device_attribute *attr, char *buf)
 }
 static DEVICE_ATTR_RO(afu_id);
 
-static const struct attribute *port_afu_attrs[] = {
+static struct attribute *port_afu_attrs[] = {
 	&dev_attr_afu_id.attr,
 	NULL
 };
+ATTRIBUTE_GROUPS(port_afu);
 
 static int port_afu_init(struct platform_device *pdev,
 			 struct dfl_feature *feature)
@@ -234,7 +236,7 @@ static int port_afu_init(struct platform_device *pdev,
 	if (ret)
 		return ret;
 
-	return sysfs_create_files(&pdev->dev.kobj, port_afu_attrs);
+	return device_add_groups(&pdev->dev, port_afu_groups);
 }
 
 static void port_afu_uinit(struct platform_device *pdev,
@@ -242,7 +244,7 @@ static void port_afu_uinit(struct platform_device *pdev,
 {
 	dev_dbg(&pdev->dev, "PORT AFU UInit.\n");
 
-	sysfs_remove_files(&pdev->dev.kobj, port_afu_attrs);
+	device_remove_groups(&pdev->dev, port_afu_groups);
 }
 
 static const struct dfl_feature_ops port_afu_ops = {
diff --git a/drivers/fpga/dfl-fme-main.c b/drivers/fpga/dfl-fme-main.c
index 086ad2420ade..0be4635583d5 100644
--- a/drivers/fpga/dfl-fme-main.c
+++ b/drivers/fpga/dfl-fme-main.c
@@ -72,12 +72,13 @@ static ssize_t bitstream_metadata_show(struct device *dev,
 }
 static DEVICE_ATTR_RO(bitstream_metadata);
 
-static const struct attribute *fme_hdr_attrs[] = {
+static struct attribute *fme_hdr_attrs[] = {
 	&dev_attr_ports_num.attr,
 	&dev_attr_bitstream_id.attr,
 	&dev_attr_bitstream_metadata.attr,
 	NULL,
 };
+ATTRIBUTE_GROUPS(fme_hdr);
 
 static int fme_hdr_init(struct platform_device *pdev,
 			struct dfl_feature *feature)
@@ -89,7 +90,7 @@ static int fme_hdr_init(struct platform_device *pdev,
 	dev_dbg(&pdev->dev, "FME cap %llx.\n",
 		(unsigned long long)readq(base + FME_HDR_CAP));
 
-	ret = sysfs_create_files(&pdev->dev.kobj, fme_hdr_attrs);
+	ret = device_add_groups(&pdev->dev, fme_hdr_groups);
 	if (ret)
 		return ret;
 
@@ -100,7 +101,7 @@ static void fme_hdr_uinit(struct platform_device *pdev,
 			  struct dfl_feature *feature)
 {
 	dev_dbg(&pdev->dev, "FME HDR UInit.\n");
-	sysfs_remove_files(&pdev->dev.kobj, fme_hdr_attrs);
+	device_remove_groups(&pdev->dev, fme_hdr_groups);
 }
 
 static const struct dfl_feature_ops fme_hdr_ops = {
-- 
2.22.0

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