linux-kernel - [PATCH 3/7] EDAC/device: Remove edac_dev_sysfs_block

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Date: Tue, 13 Feb 2024 12:20:47 +0100
From: "Jiri Slaby (SUSE)" <jirislaby@...nel.org>
To: bp@...en8.de
Cc: linux-kernel@...r.kernel.org,
	"Jiri Slaby (SUSE)" <jirislaby@...nel.org>,
	Tony Luck <tony.luck@...el.com>,
	James Morse <james.morse@....com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Robert Richter <rric@...nel.org>,
	linux-edac@...r.kernel.org
Subject: [PATCH 3/7] EDAC/device: Remove edac_dev_sysfs_block_attribute::store()

Noone uses this store hook (both BLOCK_ATTR() pass NULL). It actually
never was since its addition in fd309a9d8e63e (drivers/edac: fix leaf
sysfs attribute), so drop it.

Found by https://github.com/jirislaby/clang-struct.

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@...nel.org>
Cc: Borislav Petkov <bp@...en8.de>
Cc: Tony Luck <tony.luck@...el.com>
Cc: James Morse <james.morse@....com>
Cc: Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: Robert Richter <rric@...nel.org>
Cc: linux-edac@...r.kernel.org
---
 drivers/edac/edac_device.c       |  1 -
 drivers/edac/edac_device.h       |  9 +++------
 drivers/edac/edac_device_sysfs.c | 22 +++-------------------
 3 files changed, 6 insertions(+), 26 deletions(-)

diff --git a/drivers/edac/edac_device.c b/drivers/edac/edac_device.c
index 0e18729111d4..8c2aa5bcf1b7 100644
--- a/drivers/edac/edac_device.c
+++ b/drivers/edac/edac_device.c
@@ -160,7 +160,6 @@ edac_device_alloc_ctl_info(unsigned pvt_sz, char *dev_name, unsigned nr_instance
 				 */
 				attrib->attr = attrib_spec[attr].attr;
 				attrib->show = attrib_spec[attr].show;
-				attrib->store = attrib_spec[attr].store;
 
 				edac_dbg(4, "alloc-attrib=%p attrib_name='%s' attrib-spec=%p spec-name=%s\n",
 					 attrib, attrib->attr.name,
diff --git a/drivers/edac/edac_device.h b/drivers/edac/edac_device.h
index c4704b5b1e9f..a39752432c90 100644
--- a/drivers/edac/edac_device.h
+++ b/drivers/edac/edac_device.h
@@ -95,16 +95,13 @@ struct edac_dev_sysfs_attribute {
  *
  *	used in leaf 'block' nodes for adding controls/attributes
  *
- *	each block in each instance of the containing control structure
- *	can have an array of the following. The show and store functions
- *	will be filled in with the show/store function in the
- *	low level driver.
+ *	each block in each instance of the containing control structure can
+ *	have an array of the following. The show function will be filled in
+ *	with the show function in the low level driver.
  */
 struct edac_dev_sysfs_block_attribute {
 	struct attribute attr;
 	ssize_t (*show)(struct kobject *, struct attribute *, char *);
-	ssize_t (*store)(struct kobject *, struct attribute *,
-			const char *, size_t);
 };
 
 /* device block control structure */
diff --git a/drivers/edac/edac_device_sysfs.c b/drivers/edac/edac_device_sysfs.c
index 237a542e045a..fcebc4ffea26 100644
--- a/drivers/edac/edac_device_sysfs.c
+++ b/drivers/edac/edac_device_sysfs.c
@@ -457,35 +457,19 @@ static ssize_t edac_dev_block_show(struct kobject *kobj,
 	return -EIO;
 }
 
-/* Function to 'store' fields into the edac_dev 'block' structure */
-static ssize_t edac_dev_block_store(struct kobject *kobj,
-				struct attribute *attr,
-				const char *buffer, size_t count)
-{
-	struct edac_dev_sysfs_block_attribute *block_attr;
-
-	block_attr = to_block_attr(attr);
-
-	if (block_attr->store)
-		return block_attr->store(kobj, attr, buffer, count);
-	return -EIO;
-}
-
 /* edac_dev file operations for a 'block' */
 static const struct sysfs_ops device_block_ops = {
 	.show = edac_dev_block_show,
-	.store = edac_dev_block_store
 };
 
-#define BLOCK_ATTR(_name,_mode,_show,_store)        \
+#define BLOCK_ATTR(_name,_mode,_show)        \
 static struct edac_dev_sysfs_block_attribute attr_block_##_name = {	\
 	.attr = {.name = __stringify(_name), .mode = _mode },   \
 	.show   = _show,                                        \
-	.store  = _store,                                       \
 };
 
-BLOCK_ATTR(ce_count, S_IRUGO, block_ce_count_show, NULL);
-BLOCK_ATTR(ue_count, S_IRUGO, block_ue_count_show, NULL);
+BLOCK_ATTR(ce_count, S_IRUGO, block_ce_count_show);
+BLOCK_ATTR(ue_count, S_IRUGO, block_ue_count_show);
 
 /* list of edac_dev 'block' attributes */
 static struct attribute *device_block_attrs[] = {
-- 
2.43.1