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From: Christoph Hellwig <hch@lst.de>
To: Joel Becker <jlbec@evilplan.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Nicholas Bellinger <nab@linux-iscsi.org>
Cc: linux-usb@vger.kernel.org, netdev@vger.kernel.org,
	Pratyush Anand <pratyush.anand@gmail.com>,
	Pantelis Antoniou <pantelis.antoniou@konsulko.com>,
	Felipe Balbi <balbi@ti.com>,
	cluster-devel@redhat.com, Tejun Heo <tj@kernel.org>,
	target-devel@vger.kernel.org,
	Andrzej Pietrasiewicz <andrzej.p@samsung.com>,
	ocfs2-devel@oss.oracle.com
Subject: [PATCH 18/23] spear13xx_pcie_gadget: use per-attribute show and store methods
Date: Sat,  3 Oct 2015 15:32:54 +0200	[thread overview]
Message-ID: <1443879179-22280-19-git-send-email-hch@lst.de> (raw)
In-Reply-To: <1443879179-22280-1-git-send-email-hch@lst.de>

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/misc/spear13xx_pcie_gadget.c | 216 ++++++++++++-----------------------
 1 file changed, 71 insertions(+), 145 deletions(-)

diff --git a/drivers/misc/spear13xx_pcie_gadget.c b/drivers/misc/spear13xx_pcie_gadget.c
index b8374cd..ee120dc 100644
--- a/drivers/misc/spear13xx_pcie_gadget.c
+++ b/drivers/misc/spear13xx_pcie_gadget.c
@@ -220,11 +220,17 @@ static irqreturn_t spear_pcie_gadget_irq(int irq, void *dev_id)
 /*
  * configfs interfaces show/store functions
  */
-static ssize_t pcie_gadget_show_link(
-		struct spear_pcie_gadget_config *config,
-		char *buf)
+
+static struct pcie_gadget_target *to_target(struct config_item *item)
 {
-	struct pcie_app_reg __iomem *app_reg = config->va_app_base;
+	return item ?
+		container_of(to_configfs_subsystem(to_config_group(item)),
+				struct pcie_gadget_target, subsys) : NULL;
+}
+
+static ssize_t pcie_gadget_link_show(struct config_item *item, char *buf)
+{
+	struct pcie_app_reg __iomem *app_reg = to_target(item)->va_app_base;
 
 	if (readl(&app_reg->app_status_1) & ((u32)1 << XMLH_LINK_UP_ID))
 		return sprintf(buf, "UP");
@@ -232,11 +238,10 @@ static ssize_t pcie_gadget_show_link(
 		return sprintf(buf, "DOWN");
 }
 
-static ssize_t pcie_gadget_store_link(
-		struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_link_store(struct config_item *item,
 		const char *buf, size_t count)
 {
-	struct pcie_app_reg __iomem *app_reg = config->va_app_base;
+	struct pcie_app_reg __iomem *app_reg = to_target(item)->va_app_base;
 
 	if (sysfs_streq(buf, "UP"))
 		writel(readl(&app_reg->app_ctrl_0) | (1 << APP_LTSSM_ENABLE_ID),
@@ -250,17 +255,15 @@ static ssize_t pcie_gadget_store_link(
 	return count;
 }
 
-static ssize_t pcie_gadget_show_int_type(
-		struct spear_pcie_gadget_config *config,
-		char *buf)
+static ssize_t pcie_gadget_int_type_show(struct config_item *item, char *buf)
 {
-	return sprintf(buf, "%s", config->int_type);
+	return sprintf(buf, "%s", to_target(item)->int_type);
 }
 
-static ssize_t pcie_gadget_store_int_type(
-		struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_int_type_store(struct config_item *item,
 		const char *buf, size_t count)
 {
+	struct spear_pcie_gadget_config *config = to_target(item)
 	u32 cap, vec, flags;
 	ulong vector;
 
@@ -288,11 +291,10 @@ static ssize_t pcie_gadget_store_int_type(
 	return count;
 }
 
-static ssize_t pcie_gadget_show_no_of_msi(
-		struct spear_pcie_gadget_config *config,
-		char *buf)
+static ssize_t pcie_gadget_no_of_msi_show(struct config_item *item, char *buf)
 {
-	struct pcie_app_reg __iomem *app_reg = config->va_app_base;
+	struct spear_pcie_gadget_config *config = to_target(item)
+	struct pcie_app_reg __iomem *app_reg = to_target(item)->va_app_base;
 	u32 cap, vec, flags;
 	ulong vector;
 
@@ -313,13 +315,12 @@ static ssize_t pcie_gadget_show_no_of_msi(
 	return sprintf(buf, "%lu", vector);
 }
 
-static ssize_t pcie_gadget_store_no_of_msi(
-		struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_no_of_msi_store(struct config_item *item,
 		const char *buf, size_t count)
 {
 	int ret;
 
-	ret = kstrtoul(buf, 0, &config->requested_msi);
+	ret = kstrtoul(buf, 0, &to_target(item)->requested_msi);
 	if (ret)
 		return ret;
 
@@ -329,11 +330,10 @@ static ssize_t pcie_gadget_store_no_of_msi(
 	return count;
 }
 
-static ssize_t pcie_gadget_store_inta(
-		struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_inta_store(struct config_item *item,
 		const char *buf, size_t count)
 {
-	struct pcie_app_reg __iomem *app_reg = config->va_app_base;
+	struct pcie_app_reg __iomem *app_reg = to_target(item)->va_app_base;
 	ulong en;
 	int ret;
 
@@ -351,10 +351,10 @@ static ssize_t pcie_gadget_store_inta(
 	return count;
 }
 
-static ssize_t pcie_gadget_store_send_msi(
-		struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_send_msi_store(struct config_item *item,
 		const char *buf, size_t count)
 {
+	struct spear_pcie_gadget_config *config = to_target(item)
 	struct pcie_app_reg __iomem *app_reg = config->va_app_base;
 	ulong vector;
 	u32 ven_msi;
@@ -388,19 +388,16 @@ static ssize_t pcie_gadget_store_send_msi(
 	return count;
 }
 
-static ssize_t pcie_gadget_show_vendor_id(
-		struct spear_pcie_gadget_config *config,
-		char *buf)
+static ssize_t pcie_gadget_vendor_id_show(struct config_item *item, char *buf)
 {
 	u32 id;
 
-	spear_dbi_read_reg(config, PCI_VENDOR_ID, 2, &id);
+	spear_dbi_read_reg(to_target(item), PCI_VENDOR_ID, 2, &id);
 
 	return sprintf(buf, "%x", id);
 }
 
-static ssize_t pcie_gadget_store_vendor_id(
-		struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_vendor_id_store(struct config_item *item,
 		const char *buf, size_t count)
 {
 	ulong id;
@@ -410,24 +407,21 @@ static ssize_t pcie_gadget_store_vendor_id(
 	if (ret)
 		return ret;
 
-	spear_dbi_write_reg(config, PCI_VENDOR_ID, 2, id);
+	spear_dbi_write_reg(to_target(item), PCI_VENDOR_ID, 2, id);
 
 	return count;
 }
 
-static ssize_t pcie_gadget_show_device_id(
-		struct spear_pcie_gadget_config *config,
-		char *buf)
+static ssize_t pcie_gadget_device_id_show(struct config_item *item, char *buf)
 {
 	u32 id;
 
-	spear_dbi_read_reg(config, PCI_DEVICE_ID, 2, &id);
+	spear_dbi_read_reg(to_target(item), PCI_DEVICE_ID, 2, &id);
 
 	return sprintf(buf, "%x", id);
 }
 
-static ssize_t pcie_gadget_store_device_id(
-		struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_device_id_store(struct config_item *item,
 		const char *buf, size_t count)
 {
 	ulong id;
@@ -437,22 +431,20 @@ static ssize_t pcie_gadget_store_device_id(
 	if (ret)
 		return ret;
 
-	spear_dbi_write_reg(config, PCI_DEVICE_ID, 2, id);
+	spear_dbi_write_reg(to_target(item), PCI_DEVICE_ID, 2, id);
 
 	return count;
 }
 
-static ssize_t pcie_gadget_show_bar0_size(
-		struct spear_pcie_gadget_config *config,
-		char *buf)
+static ssize_t pcie_gadget_bar0_size_show(struct config_item *item, char *buf)
 {
-	return sprintf(buf, "%lx", config->bar0_size);
+	return sprintf(buf, "%lx", to_target(item)->bar0_size);
 }
 
-static ssize_t pcie_gadget_store_bar0_size(
-		struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_bar0_size_store(struct config_item *item,
 		const char *buf, size_t count)
 {
+	struct spear_pcie_gadget_config *config = to_target(item)
 	ulong size;
 	u32 pos, pos1;
 	u32 no_of_bit = 0;
@@ -489,21 +481,20 @@ static ssize_t pcie_gadget_store_bar0_size(
 	return count;
 }
 
-static ssize_t pcie_gadget_show_bar0_address(
-		struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_bar0_address_show(struct config_item *item,
 		char *buf)
 {
-	struct pcie_app_reg __iomem *app_reg = config->va_app_base;
+	struct pcie_app_reg __iomem *app_reg = to_target(item)->va_app_base;
 
 	u32 address = readl(&app_reg->pim0_mem_addr_start);
 
 	return sprintf(buf, "%x", address);
 }
 
-static ssize_t pcie_gadget_store_bar0_address(
-		struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_bar0_address_store(struct config_item *item,
 		const char *buf, size_t count)
 {
+	struct spear_pcie_gadget_config *config = to_target(item)
 	struct pcie_app_reg __iomem *app_reg = config->va_app_base;
 	ulong address;
 	int ret;
@@ -524,15 +515,13 @@ static ssize_t pcie_gadget_store_bar0_address(
 	return count;
 }
 
-static ssize_t pcie_gadget_show_bar0_rw_offset(
-		struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_bar0_rw_offset_show(struct config_item *item,
 		char *buf)
 {
-	return sprintf(buf, "%lx", config->bar0_rw_offset);
+	return sprintf(buf, "%lx", to_target(item)->bar0_rw_offset);
 }
 
-static ssize_t pcie_gadget_store_bar0_rw_offset(
-		struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_bar0_rw_offset_store(struct config_item *item,
 		const char *buf, size_t count)
 {
 	ulong offset;
@@ -545,15 +534,14 @@ static ssize_t pcie_gadget_store_bar0_rw_offset(
 	if (offset % 4)
 		return -EINVAL;
 
-	config->bar0_rw_offset = offset;
+	to_target(item)->bar0_rw_offset = offset;
 
 	return count;
 }
 
-static ssize_t pcie_gadget_show_bar0_data(
-		struct spear_pcie_gadget_config *config,
-		char *buf)
+static ssize_t pcie_gadget_bar0_data_show(struct config_item *item, char *buf)
 {
+	struct spear_pcie_gadget_config *config = to_target(item)
 	ulong data;
 
 	if (!config->va_bar0_address)
@@ -564,10 +552,10 @@ static ssize_t pcie_gadget_show_bar0_data(
 	return sprintf(buf, "%lx", data);
 }
 
-static ssize_t pcie_gadget_store_bar0_data(
-		struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_bar0_data_store(struct config_item *item,
 		const char *buf, size_t count)
 {
+	struct spear_pcie_gadget_config *config = to_target(item)
 	ulong data;
 	int ret;
 
@@ -583,97 +571,35 @@ static ssize_t pcie_gadget_store_bar0_data(
 	return count;
 }
 
-/*
- * Attribute definitions.
- */
-
-#define PCIE_GADGET_TARGET_ATTR_RO(_name)				\
-static struct pcie_gadget_target_attr pcie_gadget_target_##_name =	\
-	__CONFIGFS_ATTR(_name, S_IRUGO, pcie_gadget_show_##_name, NULL)
-
-#define PCIE_GADGET_TARGET_ATTR_WO(_name)				\
-static struct pcie_gadget_target_attr pcie_gadget_target_##_name =	\
-	__CONFIGFS_ATTR(_name, S_IWUSR, NULL, pcie_gadget_store_##_name)
-
-#define PCIE_GADGET_TARGET_ATTR_RW(_name)				\
-static struct pcie_gadget_target_attr pcie_gadget_target_##_name =	\
-	__CONFIGFS_ATTR(_name, S_IRUGO | S_IWUSR, pcie_gadget_show_##_name, \
-			pcie_gadget_store_##_name)
-PCIE_GADGET_TARGET_ATTR_RW(link);
-PCIE_GADGET_TARGET_ATTR_RW(int_type);
-PCIE_GADGET_TARGET_ATTR_RW(no_of_msi);
-PCIE_GADGET_TARGET_ATTR_WO(inta);
-PCIE_GADGET_TARGET_ATTR_WO(send_msi);
-PCIE_GADGET_TARGET_ATTR_RW(vendor_id);
-PCIE_GADGET_TARGET_ATTR_RW(device_id);
-PCIE_GADGET_TARGET_ATTR_RW(bar0_size);
-PCIE_GADGET_TARGET_ATTR_RW(bar0_address);
-PCIE_GADGET_TARGET_ATTR_RW(bar0_rw_offset);
-PCIE_GADGET_TARGET_ATTR_RW(bar0_data);
+CONFIGFS_ATTR(pcie_gadget_, link);
+CONFIGFS_ATTR(pcie_gadget_, int_type);
+CONFIGFS_ATTR(pcie_gadget_, no_of_msi);
+CONFIGFS_ATTR_WO(pcie_gadget_, inta);
+CONFIGFS_ATTR_WO(pcie_gadget_, send_msi);
+CONFIGFS_ATTR(pcie_gadget_, vendor_id);
+CONFIGFS_ATTR(pcie_gadget_, device_id);
+CONFIGFS_ATTR(pcie_gadget_, bar0_size);
+CONFIGFS_ATTR(pcie_gadget_, bar0_address);
+CONFIGFS_ATTR(pcie_gadget_, bar0_rw_offset);
+CONFIGFS_ATTR(pcie_gadget_, bar0_data);
 
 static struct configfs_attribute *pcie_gadget_target_attrs[] = {
-	&pcie_gadget_target_link.attr,
-	&pcie_gadget_target_int_type.attr,
-	&pcie_gadget_target_no_of_msi.attr,
-	&pcie_gadget_target_inta.attr,
-	&pcie_gadget_target_send_msi.attr,
-	&pcie_gadget_target_vendor_id.attr,
-	&pcie_gadget_target_device_id.attr,
-	&pcie_gadget_target_bar0_size.attr,
-	&pcie_gadget_target_bar0_address.attr,
-	&pcie_gadget_target_bar0_rw_offset.attr,
-	&pcie_gadget_target_bar0_data.attr,
+	&pcie_gadget_attr_link,
+	&pcie_gadget_attr_int_type,
+	&pcie_gadget_attr_no_of_msi,
+	&pcie_gadget_attr_inta,
+	&pcie_gadget_attr_send_msi,
+	&pcie_gadget_attr_vendor_id,
+	&pcie_gadget_attr_device_id,
+	&pcie_gadget_attr_bar0_size,
+	&pcie_gadget_attr_bar0_address,
+	&pcie_gadget_attr_bar0_rw_offset,
+	&pcie_gadget_attr_bar0_data,
 	NULL,
 };
 
-static struct pcie_gadget_target *to_target(struct config_item *item)
-{
-	return item ?
-		container_of(to_configfs_subsystem(to_config_group(item)),
-				struct pcie_gadget_target, subsys) : NULL;
-}
-
-/*
- * Item operations and type for pcie_gadget_target.
- */
-
-static ssize_t pcie_gadget_target_attr_show(struct config_item *item,
-					   struct configfs_attribute *attr,
-					   char *buf)
-{
-	ssize_t ret = -EINVAL;
-	struct pcie_gadget_target *target = to_target(item);
-	struct pcie_gadget_target_attr *t_attr =
-		container_of(attr, struct pcie_gadget_target_attr, attr);
-
-	if (t_attr->show)
-		ret = t_attr->show(&target->config, buf);
-	return ret;
-}
-
-static ssize_t pcie_gadget_target_attr_store(struct config_item *item,
-					struct configfs_attribute *attr,
-					const char *buf,
-					size_t count)
-{
-	ssize_t ret = -EINVAL;
-	struct pcie_gadget_target *target = to_target(item);
-	struct pcie_gadget_target_attr *t_attr =
-		container_of(attr, struct pcie_gadget_target_attr, attr);
-
-	if (t_attr->store)
-		ret = t_attr->store(&target->config, buf, count);
-	return ret;
-}
-
-static struct configfs_item_operations pcie_gadget_target_item_ops = {
-	.show_attribute		= pcie_gadget_target_attr_show,
-	.store_attribute	= pcie_gadget_target_attr_store,
-};
-
 static struct config_item_type pcie_gadget_target_type = {
 	.ct_attrs		= pcie_gadget_target_attrs,
-	.ct_item_ops		= &pcie_gadget_target_item_ops,
 	.ct_owner		= THIS_MODULE,
 };
 
-- 
1.9.1

  parent reply	other threads:[~2015-10-03 13:32 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-03 13:32 simplify configfs attributes V2 Christoph Hellwig
2015-10-03 13:32 ` [PATCH 01/23] configfs: add show and store methods to struct configfs_attribute Christoph Hellwig
2015-10-03 13:32 ` [PATCH 02/23] usb-gadget: use per-attribute show and store methods Christoph Hellwig
2015-10-09 21:19   ` Felipe Balbi
2015-10-11 13:10     ` Christoph Hellwig
2015-10-03 13:32 ` [PATCH 03/23] usb-gadget/uvc: " Christoph Hellwig
2015-10-03 13:32 ` [PATCH 04/23] usb-gadget/f_hid: " Christoph Hellwig
2015-10-03 13:32 ` [PATCH 05/23] usb-gadget/f_acm: " Christoph Hellwig
2015-10-03 13:32 ` [PATCH 06/23] usb-gadget/ether: " Christoph Hellwig
2015-10-03 13:32 ` [PATCH 07/23] usb-gadget/f_loopback: " Christoph Hellwig
2015-10-03 13:32 ` [PATCH 08/23] usb-gadget/f_midi: " Christoph Hellwig
2015-10-03 13:32 ` [PATCH 09/23] usb-gadget/f_printer: " Christoph Hellwig
2015-10-03 13:32 ` [PATCH 10/23] usb-gadget/f_sourcesink: " Christoph Hellwig
2015-10-03 13:32 ` [PATCH 11/23] usb-gadget/f_mass_storage: " Christoph Hellwig
2015-10-03 13:32 ` [PATCH 12/23] usb-gadget/f_uac1: " Christoph Hellwig
2015-10-03 13:32 ` [PATCH 13/23] usb-gadget/f_uac2: " Christoph Hellwig
2015-10-03 13:32 ` [PATCH 14/23] usb-gadget/f_obex: " Christoph Hellwig
2015-10-03 13:32 ` [PATCH 15/23] usb-gadget/f_phonet: " Christoph Hellwig
2015-10-03 13:32 ` [PATCH 16/23] usb-gadget/f_serial: " Christoph Hellwig
2015-10-03 13:32 ` [PATCH 17/23] dlm: " Christoph Hellwig
2015-10-03 13:32 ` Christoph Hellwig [this message]
2015-10-03 13:32 ` [PATCH 20/23] netconsole: " Christoph Hellwig
2015-10-03 13:32 ` [PATCH 21/23] ocfs2/cluster: move locking into attribute " Christoph Hellwig
2015-10-03 13:32 ` [PATCH 23/23] configfs: remove old API Christoph Hellwig
2015-10-05 21:37 ` simplify configfs attributes V2 Andrew Morton
     [not found]   ` <20151005143705.bdcfa7d7b8211506c5dbc12e-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
2015-10-13 12:54     ` Christoph Hellwig
     [not found] ` <1443879179-22280-1-git-send-email-hch-jcswGhMUV9g@public.gmane.org>
2015-10-03 13:32   ` [PATCH 19/23] target: use per-attribute show and store methods Christoph Hellwig
2015-10-03 13:32   ` [PATCH 22/23] ocfs2/cluster: " Christoph Hellwig
2015-10-09 21:37   ` simplify configfs attributes V2 Felipe Balbi
2015-10-11 13:10     ` Christoph Hellwig
2015-10-14  5:23 ` Nicholas A. Bellinger
  -- strict thread matches above, loose matches on Subject: below --
2015-10-06  7:01 [PATCH 18/23] spear13xx_pcie_gadget: use per-attribute show and store methods Pratyush Anand
2015-10-09 21:05 ` Felipe Balbi
2015-10-11 13:09   ` Christoph Hellwig
     [not found]     ` <20151011130941.GA3890-jcswGhMUV9g@public.gmane.org>
2015-10-12 13:49       ` Felipe Balbi
2015-09-25 13:49 simplify configfs attributes Christoph Hellwig
2015-09-25 13:49 ` [PATCH 18/23] spear13xx_pcie_gadget: use per-attribute show and store methods Christoph Hellwig

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