[PATCH 3/5] powerpc/powernv/flash: Use BIN_ATTR_ADMIN_WO() for bin_attribute definition

[Thomas Weißschuh]

Using the macro saves some lines of code and prepares the attribute for
the general constifications of struct bin_attributes.

While at it also constify the callback parameter.

Signed-off-by: Thomas Weißschuh <li...@weissschuh.net>
---
 arch/powerpc/platforms/powernv/opal-flash.c | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/opal-flash.c 
b/arch/powerpc/platforms/powernv/opal-flash.c
index 
d5ea04e8e4c526b99ca8f1ab613266b385362d82..76e3818601e5610f48bb8a6fd325239d6ad39723
 100644
--- a/arch/powerpc/platforms/powernv/opal-flash.c
+++ b/arch/powerpc/platforms/powernv/opal-flash.c
@@ -431,9 +431,9 @@ static int alloc_image_buf(char *buffer, size_t count)
  * Parse candidate image header to get total image size
  * and pre-allocate required memory.
  */
-static ssize_t image_data_write(struct file *filp, struct kobject *kobj,
-                               struct bin_attribute *bin_attr,
-                               char *buffer, loff_t pos, size_t count)
+static ssize_t image_write(struct file *filp, struct kobject *kobj,
+                          const struct bin_attribute *bin_attr,
+                          char *buffer, loff_t pos, size_t count)
 {
        int rc;
 
@@ -490,11 +490,7 @@ static ssize_t image_data_write(struct file *filp, struct 
kobject *kobj,
  *   update_flash      : Flash new firmware image
  *
  */
-static const struct bin_attribute image_data_attr = {
-       .attr = {.name = "image", .mode = 0200},
-       .size = MAX_IMAGE_SIZE, /* Limit image size */
-       .write = image_data_write,
-};
+static const BIN_ATTR_ADMIN_WO(image, MAX_IMAGE_SIZE);
 
 static struct kobj_attribute validate_attribute =
        __ATTR(validate_flash, 0600, validate_show, validate_store);
@@ -544,7 +540,7 @@ void __init opal_flash_update_init(void)
                goto nokobj;
        }
 
-       ret = sysfs_create_bin_file(opal_kobj, &image_data_attr);
+       ret = sysfs_create_bin_file(opal_kobj, &bin_attr_image);
        if (ret) {
                pr_warn("FLASH: Failed to create sysfs files\n");
                goto nosysfs_file;

-- 
2.47.1