diff options
Diffstat (limited to 'arch/s390/kernel/ipl.c')
| -rw-r--r-- | arch/s390/kernel/ipl.c | 30 |
1 files changed, 11 insertions, 19 deletions
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c index dd8a350..52fbef9 100644 --- a/arch/s390/kernel/ipl.c +++ b/arch/s390/kernel/ipl.c @@ -182,24 +182,21 @@ EXPORT_SYMBOL_GPL(diag308); /* SYSFS */ -#define DEFINE_IPL_ATTR_RO(_prefix, _name, _format, _value) \ +#define IPL_ATTR_SHOW_FN(_prefix, _name, _format, args...) \ static ssize_t sys_##_prefix##_##_name##_show(struct kobject *kobj, \ struct kobj_attribute *attr, \ char *page) \ { \ - return sprintf(page, _format, _value); \ -} \ + return snprintf(page, PAGE_SIZE, _format, ##args); \ +} + +#define DEFINE_IPL_ATTR_RO(_prefix, _name, _format, _value) \ +IPL_ATTR_SHOW_FN(_prefix, _name, _format, _value) \ static struct kobj_attribute sys_##_prefix##_##_name##_attr = \ - __ATTR(_name, S_IRUGO, sys_##_prefix##_##_name##_show, NULL); + __ATTR(_name, S_IRUGO, sys_##_prefix##_##_name##_show, NULL) #define DEFINE_IPL_ATTR_RW(_prefix, _name, _fmt_out, _fmt_in, _value) \ -static ssize_t sys_##_prefix##_##_name##_show(struct kobject *kobj, \ - struct kobj_attribute *attr, \ - char *page) \ -{ \ - return sprintf(page, _fmt_out, \ - (unsigned long long) _value); \ -} \ +IPL_ATTR_SHOW_FN(_prefix, _name, _fmt_out, (unsigned long long) _value) \ static ssize_t sys_##_prefix##_##_name##_store(struct kobject *kobj, \ struct kobj_attribute *attr, \ const char *buf, size_t len) \ @@ -213,15 +210,10 @@ static ssize_t sys_##_prefix##_##_name##_store(struct kobject *kobj, \ static struct kobj_attribute sys_##_prefix##_##_name##_attr = \ __ATTR(_name,(S_IRUGO | S_IWUSR), \ sys_##_prefix##_##_name##_show, \ - sys_##_prefix##_##_name##_store); + sys_##_prefix##_##_name##_store) #define DEFINE_IPL_ATTR_STR_RW(_prefix, _name, _fmt_out, _fmt_in, _value)\ -static ssize_t sys_##_prefix##_##_name##_show(struct kobject *kobj, \ - struct kobj_attribute *attr, \ - char *page) \ -{ \ - return sprintf(page, _fmt_out, _value); \ -} \ +IPL_ATTR_SHOW_FN(_prefix, _name, _fmt_out, _value) \ static ssize_t sys_##_prefix##_##_name##_store(struct kobject *kobj, \ struct kobj_attribute *attr, \ const char *buf, size_t len) \ @@ -233,7 +225,7 @@ static ssize_t sys_##_prefix##_##_name##_store(struct kobject *kobj, \ static struct kobj_attribute sys_##_prefix##_##_name##_attr = \ __ATTR(_name,(S_IRUGO | S_IWUSR), \ sys_##_prefix##_##_name##_show, \ - sys_##_prefix##_##_name##_store); + sys_##_prefix##_##_name##_store) static void make_attrs_ro(struct attribute **attrs) { |
