[PATCH 39/54] kobject: convert efivars to kobj_attr interface

Greg Kroah-Hartman
2007-11-03T00:13:13Z

This cleans up a lot of code and gets rid of a unneeded macro, and gets
us one step closer to deleting the deprecated subsys_attr code.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Matt Domsch <Matt_Domsch@dell.com>
Cc: Matt Tolentino <matthew.e.tolentino@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/firmware/efivars.c | 35 ++++++++++++++---------------------
1 files changed, 14 insertions(+), 21 deletions(-)

diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c
index 65cddb7..8d7c8c5 100644
--- a/drivers/firmware/efivars.c
+++ b/drivers/firmware/efivars.c
@@ -129,13 +129,6 @@ struct efivar_attribute {
};

-#define EFI_ATTR(_name, _mode, _show, _store) \
-struct subsys_attribute efi_attr_##_name = { \
- .attr = {.name = __stringify(_name), .mode = _mode}, \
- .show = _show, \
- .store = _store, \
-};
-
#define EFIVAR_ATTR(_name, _mode, _show, _store) \
struct efivar_attribute efivar_attr_##_name = { \
.attr = {.name = __stringify(_name), .mode = _mode}, \
@@ -411,12 +404,12 @@ efivar_unregister(struct efivar_entry *var)
* Let's not leave out systab information that snuck into
* the efivars driver
*/
-static ssize_t
-systab_read(struct kset *kset, char *buf)
+static ssize_t systab_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buf)
{
char *str = buf;

- if (!kset || !buf)
+ if (!kobj || !buf)
return -EINVAL;

if (efi.mps != EFI_INVALID_TABLE_ADDR)
@@ -437,13 +430,19 @@ systab_read(struct kset *kset, char *buf)
return str - buf;
}

-static EFI_ATTR(systab, 0400, systab_read, NULL);
+static struct kobj_attribute efi_attr_systab =
+ __ATTR(systab, 0400, systab_show, NULL);

-static struct subsys_attribute *efi_subsys_attrs[] = {
- &efi_attr_systab,
+static struct attribute *efi_subsys_attrs[] = {
+ &efi_attr_systab.attr,
NULL, /* maybe more in the future? */
};

+static struct attribute_group efi_subsys_attr_group = {
+ .attrs = efi_subsys_attrs,
+};
+
+
static decl_subsys(vars, NULL);
static decl_subsys(efi, NULL);

@@ -522,9 +521,8 @@ efivars_init(void)
efi_status_t status = EFI_NOT_FOUND;
efi_guid_t vendor_guid;
efi_char16_t *variable_name;
- struct subsys_attribute *attr;
unsigned long variable_name_size = 1024;
- int i, error = 0;
+ int error = 0;

if (!efi_enabled)
return -ENODEV;
@@ -586,12 +584,7 @@ efivars_init(void)
} while (status != EFI_NOT_FOUND);

/* Don't forget the systab entry */
-
- for (i = 0; (attr = efi_subsys_attrs[i]) && !error; i++) {
- if (attr->show)
- error = subsys_create_file(&efi_subsys, attr);
- }
-
+ error = sysfs_create_group(&efi_subsys.kobj, &efi_subsys_attr_group);
if (error)
printk(KERN_ERR "efivars: Sysfs attribute export failed with error %d.\n", error);
else
--
1.5.3.4