diff mbox

[20/26] parisc: Don't use create_proc_read_entry() [RFC]

Message ID 20130411133017.32763.99586.stgit@warthog.procyon.org.uk (mailing list archive)
State Accepted
Delegated to: Helge Deller
Headers show

Commit Message

David Howells April 11, 2013, 1:30 p.m. UTC
Don't use create_proc_read_entry() as that is deprecated, but rather use
proc_create_data() and seq_file instead.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
cc: Helge Deller <deller@gmx.de>
cc: linux-parisc@vger.kernel.org
---

 arch/parisc/kernel/pdc_chassis.c |   47 +++++++++++++++++++-------------------
 1 file changed, 24 insertions(+), 23 deletions(-)


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Comments

Helge Deller April 28, 2013, 8:20 p.m. UTC | #1
On 04/11/2013 03:30 PM, David Howells wrote:
> Don't use create_proc_read_entry() as that is deprecated, but rather use
> proc_create_data() and seq_file instead.
> 
> Signed-off-by: David Howells <dhowells@redhat.com>
> cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
> cc: Helge Deller <deller@gmx.de>
> cc: linux-parisc@vger.kernel.org

Signed-off-by: Helge Deller <deller@gmx.de>

Thanks!
I've queued it up in the parisc tree for 3.10

Helge


> ---
> 
>  arch/parisc/kernel/pdc_chassis.c |   47 +++++++++++++++++++-------------------
>  1 file changed, 24 insertions(+), 23 deletions(-)
> 
> diff --git a/arch/parisc/kernel/pdc_chassis.c b/arch/parisc/kernel/pdc_chassis.c
> index d47ba1a..8fa314f 100644
> --- a/arch/parisc/kernel/pdc_chassis.c
> +++ b/arch/parisc/kernel/pdc_chassis.c
> @@ -30,11 +30,13 @@
>  #endif
>  
>  #include <linux/init.h>
> +#include <linux/module.h>
>  #include <linux/kernel.h>
>  #include <linux/reboot.h>
>  #include <linux/notifier.h>
>  #include <linux/cache.h>
>  #include <linux/proc_fs.h>
> +#include <linux/seq_file.h>
>  
>  #include <asm/pdc_chassis.h>
>  #include <asm/processor.h>
> @@ -244,38 +246,38 @@ int pdc_chassis_send_status(int message)
>  
>  #ifdef CONFIG_PDC_CHASSIS_WARN
>  #ifdef CONFIG_PROC_FS
> -static int pdc_chassis_warn_pread(char *page, char **start, off_t off,
> -		int count, int *eof, void *data)
> +static int pdc_chassis_warn_show(struct seq_file *m, void *v)
>  {
> -	char *out = page;
> -	int len, ret;
>  	unsigned long warn;
>  	u32 warnreg;
>  
> -	ret = pdc_chassis_warn(&warn);
> -	if (ret != PDC_OK)
> +	if (pdc_chassis_warn(&warn) != PDC_OK)
>  		return -EIO;
>  
>  	warnreg = (warn & 0xFFFFFFFF);
>  
>  	if ((warnreg >> 24) & 0xFF)
> -		out += sprintf(out, "Chassis component failure! (eg fan or PSU): 0x%.2x\n", ((warnreg >> 24) & 0xFF));
> -
> -	out += sprintf(out, "Battery: %s\n", (warnreg & 0x04) ? "Low!" : "OK");
> -	out += sprintf(out, "Temp low: %s\n", (warnreg & 0x02) ? "Exceeded!" : "OK");
> -	out += sprintf(out, "Temp mid: %s\n", (warnreg & 0x01) ? "Exceeded!" : "OK");
> -
> -	len = out - page - off;
> -	if (len < count) {
> -		*eof = 1;
> -		if (len <= 0) return 0;
> -	} else {
> -		len = count;
> -	}
> -	*start = page + off;
> -	return len;
> +		seq_printf(m, "Chassis component failure! (eg fan or PSU): 0x%.2x\n",
> +			   (warnreg >> 24) & 0xFF);
> +
> +	seq_printf(m, "Battery: %s\n", (warnreg & 0x04) ? "Low!" : "OK");
> +	seq_printf(m, "Temp low: %s\n", (warnreg & 0x02) ? "Exceeded!" : "OK");
> +	seq_printf(m, "Temp mid: %s\n", (warnreg & 0x01) ? "Exceeded!" : "OK");
> +	return 0;
> +}
> +
> +static int pdc_chassis_warn_open(struct inode *inode, struct file *file)
> +{
> +	return single_open(file, pdc_chassis_warn_show, NULL);
>  }
>  
> +static const struct file_operations pdc_chassis_warn_fops = {
> +	.open		= pdc_chassis_warn_open,
> +	.read		= seq_read,
> +	.llseek		= seq_lseek,
> +	.release	= seq_release,
> +};
> +
>  static int __init pdc_chassis_create_procfs(void)
>  {
>  	unsigned long test;
> @@ -290,8 +292,7 @@ static int __init pdc_chassis_create_procfs(void)
>  
>  	printk(KERN_INFO "Enabling PDC chassis warnings support v%s\n",
>  			PDC_CHASSIS_VER);
> -	create_proc_read_entry("chassis", 0400, NULL, pdc_chassis_warn_pread,
> -				NULL);
> +	proc_create("chassis", 0400, NULL, &pdc_chassis_warn_fops);
>  	return 0;
>  }
>  
> 

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diff mbox

Patch

diff --git a/arch/parisc/kernel/pdc_chassis.c b/arch/parisc/kernel/pdc_chassis.c
index d47ba1a..8fa314f 100644
--- a/arch/parisc/kernel/pdc_chassis.c
+++ b/arch/parisc/kernel/pdc_chassis.c
@@ -30,11 +30,13 @@ 
 #endif
 
 #include <linux/init.h>
+#include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/reboot.h>
 #include <linux/notifier.h>
 #include <linux/cache.h>
 #include <linux/proc_fs.h>
+#include <linux/seq_file.h>
 
 #include <asm/pdc_chassis.h>
 #include <asm/processor.h>
@@ -244,38 +246,38 @@  int pdc_chassis_send_status(int message)
 
 #ifdef CONFIG_PDC_CHASSIS_WARN
 #ifdef CONFIG_PROC_FS
-static int pdc_chassis_warn_pread(char *page, char **start, off_t off,
-		int count, int *eof, void *data)
+static int pdc_chassis_warn_show(struct seq_file *m, void *v)
 {
-	char *out = page;
-	int len, ret;
 	unsigned long warn;
 	u32 warnreg;
 
-	ret = pdc_chassis_warn(&warn);
-	if (ret != PDC_OK)
+	if (pdc_chassis_warn(&warn) != PDC_OK)
 		return -EIO;
 
 	warnreg = (warn & 0xFFFFFFFF);
 
 	if ((warnreg >> 24) & 0xFF)
-		out += sprintf(out, "Chassis component failure! (eg fan or PSU): 0x%.2x\n", ((warnreg >> 24) & 0xFF));
-
-	out += sprintf(out, "Battery: %s\n", (warnreg & 0x04) ? "Low!" : "OK");
-	out += sprintf(out, "Temp low: %s\n", (warnreg & 0x02) ? "Exceeded!" : "OK");
-	out += sprintf(out, "Temp mid: %s\n", (warnreg & 0x01) ? "Exceeded!" : "OK");
-
-	len = out - page - off;
-	if (len < count) {
-		*eof = 1;
-		if (len <= 0) return 0;
-	} else {
-		len = count;
-	}
-	*start = page + off;
-	return len;
+		seq_printf(m, "Chassis component failure! (eg fan or PSU): 0x%.2x\n",
+			   (warnreg >> 24) & 0xFF);
+
+	seq_printf(m, "Battery: %s\n", (warnreg & 0x04) ? "Low!" : "OK");
+	seq_printf(m, "Temp low: %s\n", (warnreg & 0x02) ? "Exceeded!" : "OK");
+	seq_printf(m, "Temp mid: %s\n", (warnreg & 0x01) ? "Exceeded!" : "OK");
+	return 0;
+}
+
+static int pdc_chassis_warn_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, pdc_chassis_warn_show, NULL);
 }
 
+static const struct file_operations pdc_chassis_warn_fops = {
+	.open		= pdc_chassis_warn_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= seq_release,
+};
+
 static int __init pdc_chassis_create_procfs(void)
 {
 	unsigned long test;
@@ -290,8 +292,7 @@  static int __init pdc_chassis_create_procfs(void)
 
 	printk(KERN_INFO "Enabling PDC chassis warnings support v%s\n",
 			PDC_CHASSIS_VER);
-	create_proc_read_entry("chassis", 0400, NULL, pdc_chassis_warn_pread,
-				NULL);
+	proc_create("chassis", 0400, NULL, &pdc_chassis_warn_fops);
 	return 0;
 }