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efirtc: Don't use create_proc_read_entry() 

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: Arnd Bergmann <arnd@arndb.de>
cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
David Howells 2013-04-10 16:21:08 +01:00 committed by Al Viro
parent a6d935a5b1
commit 788416bcee
1 changed files with 40 additions and 43 deletions
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83
drivers/char/efirtc.c
View File

@ -34,6 +34,7 @@
#include <linux/init.h>
#include <linux/rtc.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/efi.h>
#include <linux/uaccess.h>
@ -296,12 +297,10 @@ static struct miscdevice efi_rtc_dev= {
/*
* We export RAW EFI information to /proc/driver/efirtc
*/
static int
efi_rtc_get_status(char *buf)
static int efi_rtc_proc_show(struct seq_file *m, void *v)
{
efi_time_t eft, alm;
efi_time_cap_t cap;
char *p = buf;
efi_bool_t enabled, pending;
unsigned long flags;
@ -316,64 +315,63 @@ efi_rtc_get_status(char *buf)
spin_unlock_irqrestore(&efi_rtc_lock,flags);
p += sprintf(p,
"Time : %u:%u:%u.%09u\n"
"Date : %u-%u-%u\n"
"Daylight : %u\n",
eft.hour, eft.minute, eft.second, eft.nanosecond,
eft.year, eft.month, eft.day,
eft.daylight);
seq_printf(m,
"Time : %u:%u:%u.%09u\n"
"Date : %u-%u-%u\n"
"Daylight : %u\n",
eft.hour, eft.minute, eft.second, eft.nanosecond,
eft.year, eft.month, eft.day,
eft.daylight);
if (eft.timezone == EFI_UNSPECIFIED_TIMEZONE)
p += sprintf(p, "Timezone : unspecified\n");
seq_puts(m, "Timezone : unspecified\n");
else
/* XXX fixme: convert to string? */
p += sprintf(p, "Timezone : %u\n", eft.timezone);
seq_printf(m, "Timezone : %u\n", eft.timezone);
p += sprintf(p,
"Alarm Time : %u:%u:%u.%09u\n"
"Alarm Date : %u-%u-%u\n"
"Alarm Daylight : %u\n"
"Enabled : %s\n"
"Pending : %s\n",
alm.hour, alm.minute, alm.second, alm.nanosecond,
alm.year, alm.month, alm.day,
alm.daylight,
enabled == 1 ? "yes" : "no",
pending == 1 ? "yes" : "no");
seq_printf(m,
"Alarm Time : %u:%u:%u.%09u\n"
"Alarm Date : %u-%u-%u\n"
"Alarm Daylight : %u\n"
"Enabled : %s\n"
"Pending : %s\n",
alm.hour, alm.minute, alm.second, alm.nanosecond,
alm.year, alm.month, alm.day,
alm.daylight,
enabled == 1 ? "yes" : "no",
pending == 1 ? "yes" : "no");
if (eft.timezone == EFI_UNSPECIFIED_TIMEZONE)
p += sprintf(p, "Timezone : unspecified\n");
seq_puts(m, "Timezone : unspecified\n");
else
/* XXX fixme: convert to string? */
p += sprintf(p, "Timezone : %u\n", alm.timezone);
seq_printf(m, "Timezone : %u\n", alm.timezone);
/*
* now prints the capabilities
*/
p += sprintf(p,
"Resolution : %u\n"
"Accuracy : %u\n"
"SetstoZero : %u\n",
cap.resolution, cap.accuracy, cap.sets_to_zero);
seq_printf(m,
"Resolution : %u\n"
"Accuracy : %u\n"
"SetstoZero : %u\n",
cap.resolution, cap.accuracy, cap.sets_to_zero);
return p - buf;
return 0;
}
static int
efi_rtc_read_proc(char *page, char **start, off_t off,
int count, int *eof, void *data)
static int efi_rtc_proc_open(struct inode *inode, struct file *file)
{
int len = efi_rtc_get_status(page);
if (len <= off+count) *eof = 1;
*start = page + off;
len -= off;
if (len>count) len = count;
if (len<0) len = 0;
return len;
return single_open(file, efi_rtc_proc_show, NULL);
}
static const struct file_operations efi_rtc_proc_fops = {
.open = efi_rtc_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
};
static int __init
efi_rtc_init(void)
{
@ -389,8 +387,7 @@ efi_rtc_init(void)
return ret;
}
dir = create_proc_read_entry ("driver/efirtc", 0, NULL,
efi_rtc_read_proc, NULL);
dir = proc_create("driver/efirtc", 0, NULL, &efi_rtc_proc_fops);
if (dir == NULL) {
printk(KERN_ERR "efirtc: can't create /proc/driver/efirtc.\n");
misc_deregister(&efi_rtc_dev);