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sysfs: treewide: constify attribute callback of bin_attribute::llseek()

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The llseek() callbacks should not modify the struct
bin_attribute passed as argument.
Enforce this by marking the argument as const.

As there are not many callback implementers perform this change
throughout the tree at once.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Krzysztof Wilczyński <kw@linux.com>
Link: https://lore.kernel.org/r/20241103-sysfs-const-bin_attr-v2-7-71110628844c@weissschuh.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Thomas Weißschuh 2024-11-03 17:03:36 +00:00 committed by Greg Kroah-Hartman
parent 94a20fb9af
commit 699e7b85af
2 changed files with 2 additions and 2 deletions
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2
drivers/pci/pci-sysfs.c
View File

@ -841,7 +841,7 @@ static const struct attribute_group pci_dev_config_attr_group = {
static __maybe_unused loff_t
pci_llseek_resource(struct file *filep,
struct kobject *kobj __always_unused,
struct bin_attribute *attr,
const struct bin_attribute *attr,
loff_t offset, int whence)
{
return fixed_size_llseek(filep, offset, whence, attr->size);

2
include/linux/sysfs.h
View File

@ -307,7 +307,7 @@ struct bin_attribute {
char *, loff_t, size_t);
ssize_t (*write)(struct file *, struct kobject *, struct bin_attribute *,
char *, loff_t, size_t);
loff_t (*llseek)(struct file *, struct kobject *, struct bin_attribute *,
loff_t (*llseek)(struct file *, struct kobject *, const struct bin_attribute *,
loff_t, int);
int (*mmap)(struct file *, struct kobject *, const struct bin_attribute *attr,
struct vm_area_struct *vma);