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drm/lima: Constify 'struct bin_attribute'

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The sysfs core now allows instances of 'struct bin_attribute' to be
moved into read-only memory. Make use of that to protect them against
accidental or malicious modifications.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://lore.kernel.org/r/20241216-sysfs-const-bin_attr-drm-v1-2-210f2b36b9bf@weissschuh.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Thomas Weißschuh 2024-12-16 12:34:48 +01:00 committed by Greg Kroah-Hartman
parent 7787bfb3b0
commit cf3864d84f
1 changed files with 4 additions and 4 deletions
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8
drivers/gpu/drm/lima/lima_drv.c
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@ -310,7 +310,7 @@ static bool lima_read_block(struct lima_block_reader *reader,
}
static ssize_t lima_error_state_read(struct file *filp, struct kobject *kobj,
struct bin_attribute *attr, char *buf,
const struct bin_attribute *attr, char *buf,
loff_t off, size_t count)
{
struct device *dev = kobj_to_dev(kobj);
@ -336,7 +336,7 @@ static ssize_t lima_error_state_read(struct file *filp, struct kobject *kobj,
}
static ssize_t lima_error_state_write(struct file *file, struct kobject *kobj,
struct bin_attribute *attr, char *buf,
const struct bin_attribute *attr, char *buf,
loff_t off, size_t count)
{
struct device *dev = kobj_to_dev(kobj);
@ -362,8 +362,8 @@ static const struct bin_attribute lima_error_state_attr = {
.attr.name = "error",
.attr.mode = 0600,
.size = 0,
.read = lima_error_state_read,
.write = lima_error_state_write,
.read_new = lima_error_state_read,
.write_new = lima_error_state_write,
};
static int lima_pdev_probe(struct platform_device *pdev)