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powerpc/perf/hv-24x7: 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/20241216-sysfs-const-bin_attr-powerpc-v1-5-bbed8906f476@weissschuh.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Thomas Weißschuh
2025-02-21 09:20:32 +01:00
committed by Greg Kroah-Hartman
parent f2b62c03a2
commit 4aad348d0f
1 changed files with 4 additions and 4 deletions
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arch/powerpc/perf/hv-24x7.c
+4 -4
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@@ -998,7 +998,7 @@ e_out:
}
static ssize_t catalog_read(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr, char *buf,
const struct bin_attribute *bin_attr, char *buf,
loff_t offset, size_t count)
{
long hret;
@@ -1108,14 +1108,14 @@ PAGE_0_ATTR(catalog_version, "%lld\n",
(unsigned long long)be64_to_cpu(page_0->version));
PAGE_0_ATTR(catalog_len, "%lld\n",
(unsigned long long)be32_to_cpu(page_0->length) * 4096);
static BIN_ATTR_RO(catalog, 0/* real length varies */);
static const BIN_ATTR_RO(catalog, 0/* real length varies */);
static DEVICE_ATTR_RO(domains);
static DEVICE_ATTR_RO(sockets);
static DEVICE_ATTR_RO(chipspersocket);
static DEVICE_ATTR_RO(coresperchip);
static DEVICE_ATTR_RO(cpumask);
static struct bin_attribute *if_bin_attrs[] = {
static const struct bin_attribute *const if_bin_attrs[] = {
&bin_attr_catalog,
NULL,
};
@@ -1141,7 +1141,7 @@ static struct attribute *if_attrs[] = {
static const struct attribute_group if_group = {
.name = "interface",
.bin_attrs = if_bin_attrs,
.bin_attrs_new = if_bin_attrs,
.attrs = if_attrs,
};