[PATCH] watchdog: convert to DEFINE_SHOW_ATTRIBUTE

Yangtao Li
2018-12-01T10:14:22Z

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
---
drivers/watchdog/bcm_kona_wdt.c | 16 +++-------------
drivers/watchdog/ie6xx_wdt.c | 16 +++-------------
2 files changed, 6 insertions(+), 26 deletions(-)

diff --git a/drivers/watchdog/bcm_kona_wdt.c b/drivers/watchdog/bcm_kona_wdt.c
index 1462be9e6fc5..4249b47902bd 100644
--- a/drivers/watchdog/bcm_kona_wdt.c
+++ b/drivers/watchdog/bcm_kona_wdt.c
@@ -90,7 +90,7 @@ static int secure_register_read(struct bcm_kona_wdt *wdt, uint32_t offset)

#ifdef CONFIG_BCM_KONA_WDT_DEBUG

-static int bcm_kona_wdt_dbg_show(struct seq_file *s, void *data)
+static int bcm_kona_show(struct seq_file *s, void *data)
{
int ctl_val, cur_val;
unsigned long flags;
@@ -130,17 +130,7 @@ static int bcm_kona_wdt_dbg_show(struct seq_file *s, void *data)
return 0;
}

-static int bcm_kona_dbg_open(struct inode *inode, struct file *file)
-{
- return single_open(file, bcm_kona_wdt_dbg_show, inode->i_private);
-}
-
-static const struct file_operations bcm_kona_dbg_operations = {
- .open = bcm_kona_dbg_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(bcm_kona);

static void bcm_kona_wdt_debug_init(struct platform_device *pdev)
{
@@ -157,7 +147,7 @@ static void bcm_kona_wdt_debug_init(struct platform_device *pdev)
return;

if (debugfs_create_file("info", S_IFREG | S_IRUGO, dir, wdt,
- &bcm_kona_dbg_operations))
+ &bcm_kona_fops))
wdt->debugfs = dir;
else
debugfs_remove_recursive(dir);
diff --git a/drivers/watchdog/ie6xx_wdt.c b/drivers/watchdog/ie6xx_wdt.c
index 78c2541f5d52..8de9fb1ed371 100644
--- a/drivers/watchdog/ie6xx_wdt.c
+++ b/drivers/watchdog/ie6xx_wdt.c
@@ -193,7 +193,7 @@ static struct watchdog_device ie6xx_wdt_dev = {

#ifdef CONFIG_DEBUG_FS

-static int ie6xx_wdt_dbg_show(struct seq_file *s, void *unused)
+static int ie6xx_wdt_show(struct seq_file *s, void *unused)
{
seq_printf(s, "PV1 = 0x%08x\n",
inl(ie6xx_wdt_data.sch_wdtba + PV1));
@@ -212,23 +212,13 @@ static int ie6xx_wdt_dbg_show(struct seq_file *s, void *unused)
return 0;
}

-static int ie6xx_wdt_dbg_open(struct inode *inode, struct file *file)
-{
- return single_open(file, ie6xx_wdt_dbg_show, NULL);
-}
-
-static const struct file_operations ie6xx_wdt_dbg_operations = {
- .open = ie6xx_wdt_dbg_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(ie6xx_wdt);

static void ie6xx_wdt_debugfs_init(void)
{
/* /sys/kernel/debug/ie6xx_wdt */
ie6xx_wdt_data.debugfs = debugfs_create_file("ie6xx_wdt",
- S_IFREG | S_IRUGO, NULL, NULL, &ie6xx_wdt_dbg_operations);
+ S_IFREG | S_IRUGO, NULL, NULL, &ie6xx_wdt_fops);
}

static void ie6xx_wdt_debugfs_exit(void)
--
2.17.0