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configfs: Constify configfs_bin_attribute

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The configfs_bin_attribute structures defined by driver are never
modified. Make them const.

As there are only two users of these attributes, adapt them in the same
commit to avoid a phased transition.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Andreas Hindborg <a.hindborg@kernel.org>
Link: https://patch.msgid.link/20260716-configfs-const-base-v1-4-c545a4053cb5@weissschuh.net
Signed-off-by: Breno Leitao <leitao@debian.org>
This commit is contained in:
Thomas Weißschuh 2026-07-16 19:09:29 +02:00 committed by Breno Leitao
parent 459d4b9a89
commit ee4f267ada
4 changed files with 36 additions and 36 deletions
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2
drivers/acpi/acpi_configfs.c
View File

@ -91,7 +91,7 @@ static ssize_t acpi_table_aml_read(struct config_item *cfg,
CONFIGFS_BIN_ATTR(acpi_table_, aml, NULL, MAX_ACPI_TABLE_SIZE);
static struct configfs_bin_attribute *acpi_table_bin_attrs[] = {
static const struct configfs_bin_attribute *const acpi_table_bin_attrs[] = {
&acpi_table_attr_aml,
NULL,
};

2
drivers/virt/coco/guest/report.c
View File

@ -356,7 +356,7 @@ static struct configfs_attribute *tsm_report_attrs[] = {
NULL,
};
static struct configfs_bin_attribute *tsm_report_bin_attrs[] = {
static const struct configfs_bin_attribute *const tsm_report_bin_attrs[] = {
[TSM_REPORT_INBLOB] = &tsm_report_attr_inblob,
[TSM_REPORT_OUTBLOB] = &tsm_report_attr_outblob,
[TSM_REPORT_AUXBLOB] = &tsm_report_attr_auxblob,

64
include/linux/configfs.h
View File

@ -67,7 +67,7 @@ struct config_item_type {
const struct configfs_item_operations *ct_item_ops;
const struct configfs_group_operations *ct_group_ops;
struct configfs_attribute **ct_attrs;
struct configfs_bin_attribute **ct_bin_attrs;
const struct configfs_bin_attribute *const *ct_bin_attrs;
};
/**
@ -160,41 +160,41 @@ struct configfs_bin_attribute {
ssize_t (*write)(struct config_item *, const void *, size_t);
};
#define CONFIGFS_BIN_ATTR(_pfx, _name, _priv, _maxsz) \
static struct configfs_bin_attribute _pfx##attr_##_name = { \
.cb_attr = { \
.ca_name = __stringify(_name), \
.ca_mode = S_IRUGO | S_IWUSR, \
.ca_owner = THIS_MODULE, \
}, \
.cb_private = _priv, \
.cb_max_size = _maxsz, \
.read = _pfx##_name##_read, \
.write = _pfx##_name##_write, \
#define CONFIGFS_BIN_ATTR(_pfx, _name, _priv, _maxsz) \
static const struct configfs_bin_attribute _pfx##attr_##_name = { \
.cb_attr = { \
.ca_name = __stringify(_name), \
.ca_mode = S_IRUGO | S_IWUSR, \
.ca_owner = THIS_MODULE, \
}, \
.cb_private = _priv, \
.cb_max_size = _maxsz, \
.read = _pfx##_name##_read, \
.write = _pfx##_name##_write, \
}
#define CONFIGFS_BIN_ATTR_RO(_pfx, _name, _priv, _maxsz) \
static struct configfs_bin_attribute _pfx##attr_##_name = { \
.cb_attr = { \
.ca_name = __stringify(_name), \
.ca_mode = S_IRUGO, \
.ca_owner = THIS_MODULE, \
}, \
.cb_private = _priv, \
.cb_max_size = _maxsz, \
.read = _pfx##_name##_read, \
#define CONFIGFS_BIN_ATTR_RO(_pfx, _name, _priv, _maxsz) \
static const struct configfs_bin_attribute _pfx##attr_##_name = { \
.cb_attr = { \
.ca_name = __stringify(_name), \
.ca_mode = S_IRUGO, \
.ca_owner = THIS_MODULE, \
}, \
.cb_private = _priv, \
.cb_max_size = _maxsz, \
.read = _pfx##_name##_read, \
}
#define CONFIGFS_BIN_ATTR_WO(_pfx, _name, _priv, _maxsz) \
static struct configfs_bin_attribute _pfx##attr_##_name = { \
.cb_attr = { \
.ca_name = __stringify(_name), \
.ca_mode = S_IWUSR, \
.ca_owner = THIS_MODULE, \
}, \
.cb_private = _priv, \
.cb_max_size = _maxsz, \
.write = _pfx##_name##_write, \
#define CONFIGFS_BIN_ATTR_WO(_pfx, _name, _priv, _maxsz) \
static const struct configfs_bin_attribute _pfx##attr_##_name = { \
.cb_attr = { \
.ca_name = __stringify(_name), \
.ca_mode = S_IWUSR, \
.ca_owner = THIS_MODULE, \
}, \
.cb_private = _priv, \
.cb_max_size = _maxsz, \
.write = _pfx##_name##_write, \
}
/*

4
rust/kernel/configfs.rs
View File

@ -757,7 +757,7 @@ pub const fn new_with_child_ctor<const N: usize, Child>(
ct_group_ops: GroupOperationsVTable::<Data, Child>::vtable_ptr(),
ct_item_ops: ItemOperationsVTable::<$tpe, Data>::vtable_ptr(),
ct_attrs: core::ptr::from_ref(attributes).cast_mut().cast(),
ct_bin_attrs: core::ptr::null_mut(),
ct_bin_attrs: core::ptr::null(),
}),
_p: PhantomData,
}
@ -774,7 +774,7 @@ pub const fn new<const N: usize>(
ct_group_ops: core::ptr::null(),
ct_item_ops: ItemOperationsVTable::<$tpe, Data>::vtable_ptr(),
ct_attrs: core::ptr::from_ref(attributes).cast_mut().cast(),
ct_bin_attrs: core::ptr::null_mut(),
ct_bin_attrs: core::ptr::null(),
}),
_p: PhantomData,
}