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proc: introduce proc_create_single{,_data}

Browse source 
Variants of proc_create{,_data} that directly take a seq_file show
callback and drastically reduces the boilerplate code in the callers.

All trivial callers converted over.

Signed-off-by: Christoph Hellwig <[email protected]>
This commit is contained in:
Christoph Hellwig 2018-05-15 15:57:23 +02:00
commit 3f3942aca6
85 changed files with 235 additions and 1509 deletions
Download patch file Download diff file Expand all files Collapse all files

15
drivers/char/apm-emulation.c
View file

@ -461,19 +461,6 @@ static int proc_apm_show(struct seq_file *m, void *v)
return 0;
}
static int proc_apm_open(struct inode *inode, struct file *file)
{
return single_open(file, proc_apm_show, NULL);
}
static const struct file_operations apm_proc_fops = {
.owner = THIS_MODULE,
.open = proc_apm_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
#endif
static int kapmd(void *arg)
@ -657,7 +644,7 @@ static int __init apm_init(void)
wake_up_process(kapmd_tsk);
#ifdef CONFIG_PROC_FS
proc_create("apm", 0, NULL, &apm_proc_fops);
proc_create_single("apm", 0, NULL, proc_apm_show);
#endif
ret = misc_register(&apm_device);

14
drivers/char/ds1620.c
View file

@ -345,18 +345,6 @@ static int ds1620_proc_therm_show(struct seq_file *m, void *v)
fan_state[netwinder_get_fan()]);
return 0;
}
static int ds1620_proc_therm_open(struct inode *inode, struct file *file)
{
return single_open(file, ds1620_proc_therm_show, NULL);
}
static const struct file_operations ds1620_proc_therm_fops = {
.open = ds1620_proc_therm_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
#endif
static const struct file_operations ds1620_fops = {
@ -404,7 +392,7 @@ static int __init ds1620_init(void)
return ret;
#ifdef THERM_USE_PROC
if (!proc_create("therm", 0, NULL, &ds1620_proc_therm_fops))
if (!proc_create_single("therm", 0, NULL, ds1620_proc_therm_show))
printk(KERN_ERR "therm: unable to register /proc/therm\n");
#endif

15
drivers/char/efirtc.c
View file

@ -358,19 +358,6 @@ static int efi_rtc_proc_show(struct seq_file *m, void *v)
return 0;
}
static int efi_rtc_proc_open(struct inode *inode, struct file *file)
{
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 = single_release,
};
static int __init
efi_rtc_init(void)
{
@ -386,7 +373,7 @@ efi_rtc_init(void)
return ret;
}
dir = proc_create("driver/efirtc", 0, NULL, &efi_rtc_proc_fops);
dir = proc_create_single("driver/efirtc", 0, NULL, efi_rtc_proc_show);
if (dir == NULL) {
printk(KERN_ERR "efirtc: can't create /proc/driver/efirtc.\n");
misc_deregister(&efi_rtc_dev);

15
drivers/char/nvram.c
View file

@ -389,22 +389,9 @@ static int nvram_proc_read(struct seq_file *seq, void *offset)
return 0;
}
static int nvram_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, nvram_proc_read, NULL);
}
static const struct file_operations nvram_proc_fops = {
.owner = THIS_MODULE,
.open = nvram_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static int nvram_add_proc_fs(void)
{
if (!proc_create("driver/nvram", 0, NULL, &nvram_proc_fops))
if (!proc_create_single("driver/nvram", 0, NULL, nvram_proc_read))
return -ENOMEM;
return 0;
}

19
drivers/char/rtc.c
View file

@ -171,7 +171,7 @@ static void mask_rtc_irq_bit(unsigned char bit)
#endif
#ifdef CONFIG_PROC_FS
static int rtc_proc_open(struct inode *inode, struct file *file);
static int rtc_proc_show(struct seq_file *seq, void *v);
#endif
/*
@ -832,16 +832,6 @@ static struct miscdevice rtc_dev = {
.fops = &rtc_fops,
};
#ifdef CONFIG_PROC_FS
static const struct file_operations rtc_proc_fops = {
.owner = THIS_MODULE,
.open = rtc_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
#endif
static resource_size_t rtc_size;
static struct resource * __init rtc_request_region(resource_size_t size)
@ -982,7 +972,7 @@ no_irq:
}
#ifdef CONFIG_PROC_FS
ent = proc_create("driver/rtc", 0, NULL, &rtc_proc_fops);
ent = proc_create_single("driver/rtc", 0, NULL, rtc_proc_show);
if (!ent)
printk(KERN_WARNING "rtc: Failed to register with procfs.\n");
#endif
@ -1201,11 +1191,6 @@ static int rtc_proc_show(struct seq_file *seq, void *v)
#undef YN
#undef NY
}
static int rtc_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, rtc_proc_show, NULL);
}
#endif
static void rtc_get_rtc_time(struct rtc_time *rtc_tm)

15
drivers/char/toshiba.c
View file

@ -326,19 +326,6 @@ static int proc_toshiba_show(struct seq_file *m, void *v)
key);
return 0;
}
static int proc_toshiba_open(struct inode *inode, struct file *file)
{
return single_open(file, proc_toshiba_show, NULL);
}
static const struct file_operations proc_toshiba_fops = {
.owner = THIS_MODULE,
.open = proc_toshiba_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
#endif
@ -524,7 +511,7 @@ static int __init toshiba_init(void)
{
struct proc_dir_entry *pde;
pde = proc_create("toshiba", 0, NULL, &proc_toshiba_fops);
pde = proc_create_single("toshiba", 0, NULL, proc_toshiba_show);
if (!pde) {
misc_deregister(&tosh_device);
return -ENOMEM;