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firmware: dmi: 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>
Link: https://lore.kernel.org/r/20250125-sysfs-const-bin_attr-dmi-v2-3-ece1895936f4@weissschuh.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Thomas Weißschuh 2025-01-25 11:12:16 +01:00 committed by Greg Kroah-Hartman
parent 80d3989b9c
commit 1c83b02c91
1 changed files with 3 additions and 3 deletions
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6
drivers/firmware/dmi-sysfs.c
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@ -432,7 +432,7 @@ static ssize_t dmi_sel_raw_read_helper(struct dmi_sysfs_entry *entry,
}
static ssize_t raw_event_log_read(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
const struct bin_attribute *bin_attr,
char *buf, loff_t pos, size_t count)
{
struct dmi_sysfs_entry *entry = to_entry(kobj->parent);
@ -445,7 +445,7 @@ static ssize_t raw_event_log_read(struct file *filp, struct kobject *kobj,
return find_dmi_entry(entry, dmi_sel_raw_read_helper, &state);
}
static BIN_ATTR_ADMIN_RO(raw_event_log, 0);
static const BIN_ATTR_ADMIN_RO(raw_event_log, 0);
static int dmi_system_event_log(struct dmi_sysfs_entry *entry)
{
@ -536,7 +536,7 @@ static ssize_t dmi_entry_raw_read_helper(struct dmi_sysfs_entry *entry,
static ssize_t raw_read(struct file *filp,
struct kobject *kobj,
struct bin_attribute *bin_attr,
const struct bin_attribute *bin_attr,
char *buf, loff_t pos, size_t count)
{
struct dmi_sysfs_entry *entry = to_entry(kobj);