Commit 79ef5c35 authored by Thomas Weißschuh's avatar Thomas Weißschuh Committed by Jiri Kosina
Browse files

HID: roccat: kovaplus: constify 'struct bin_attribute' 



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: default avatarThomas Weißschuh <linux@weissschuh.net>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.com>
parent 4b02dcc0

drivers/hid/hid-roccat-kovaplus.c

+19 −19
Original line number Diff line number Diff line
@@ -171,8 +171,8 @@ static ssize_t kovaplus_sysfs_write(struct file *fp, struct kobject *kobj, 


#define KOVAPLUS_SYSFS_W(thingy, THINGY) \

static ssize_t kovaplus_sysfs_write_ ## thingy(struct file *fp, \

		struct kobject *kobj, struct bin_attribute *attr, char *buf, \

		loff_t off, size_t count) \

		struct kobject *kobj, const struct bin_attribute *attr, \

		char *buf, loff_t off, size_t count) \

{ \

	return kovaplus_sysfs_write(fp, kobj, buf, off, count, \

			KOVAPLUS_SIZE_ ## THINGY, KOVAPLUS_COMMAND_ ## THINGY); \
@@ -180,8 +180,8 @@ static ssize_t kovaplus_sysfs_write_ ## thingy(struct file *fp, \ 


#define KOVAPLUS_SYSFS_R(thingy, THINGY) \

static ssize_t kovaplus_sysfs_read_ ## thingy(struct file *fp, \

		struct kobject *kobj, struct bin_attribute *attr, char *buf, \

		loff_t off, size_t count) \

		struct kobject *kobj, const struct bin_attribute *attr, \

		char *buf, loff_t off, size_t count) \

{ \

	return kovaplus_sysfs_read(fp, kobj, buf, off, count, \

			KOVAPLUS_SIZE_ ## THINGY, KOVAPLUS_COMMAND_ ## THINGY); \
@@ -193,19 +193,19 @@ KOVAPLUS_SYSFS_R(thingy, THINGY) 


#define KOVAPLUS_BIN_ATTRIBUTE_RW(thingy, THINGY) \

KOVAPLUS_SYSFS_RW(thingy, THINGY); \

static struct bin_attribute bin_attr_##thingy = { \

static const struct bin_attribute bin_attr_##thingy = { \

	.attr = { .name = #thingy, .mode = 0660 }, \

	.size = KOVAPLUS_SIZE_ ## THINGY, \

	.read = kovaplus_sysfs_read_ ## thingy, \

	.write = kovaplus_sysfs_write_ ## thingy \

	.read_new = kovaplus_sysfs_read_ ## thingy, \

	.write_new = kovaplus_sysfs_write_ ## thingy \

}



#define KOVAPLUS_BIN_ATTRIBUTE_W(thingy, THINGY) \

KOVAPLUS_SYSFS_W(thingy, THINGY); \

static struct bin_attribute bin_attr_##thingy = { \

static const struct bin_attribute bin_attr_##thingy = { \

	.attr = { .name = #thingy, .mode = 0220 }, \

	.size = KOVAPLUS_SIZE_ ## THINGY, \

	.write = kovaplus_sysfs_write_ ## thingy \

	.write_new = kovaplus_sysfs_write_ ## thingy \

}

KOVAPLUS_BIN_ATTRIBUTE_W(control, CONTROL);

KOVAPLUS_BIN_ATTRIBUTE_RW(info, INFO);
@@ -213,8 +213,8 @@ KOVAPLUS_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS); 
KOVAPLUS_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS);



static ssize_t kovaplus_sysfs_read_profilex_settings(struct file *fp,

		struct kobject *kobj, struct bin_attribute *attr, char *buf,

		loff_t off, size_t count)

		struct kobject *kobj, const struct bin_attribute *attr,

		char *buf, loff_t off, size_t count)

{

	struct device *dev = kobj_to_dev(kobj)->parent->parent;

	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
@@ -231,8 +231,8 @@ static ssize_t kovaplus_sysfs_read_profilex_settings(struct file *fp, 
}



static ssize_t kovaplus_sysfs_read_profilex_buttons(struct file *fp,

		struct kobject *kobj, struct bin_attribute *attr, char *buf,

		loff_t off, size_t count)

		struct kobject *kobj, const struct bin_attribute *attr,

		char *buf, loff_t off, size_t count)

{

	struct device *dev = kobj_to_dev(kobj)->parent->parent;

	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
@@ -249,16 +249,16 @@ static ssize_t kovaplus_sysfs_read_profilex_buttons(struct file *fp, 
}



#define PROFILE_ATTR(number)						\

static struct bin_attribute bin_attr_profile##number##_settings = {	\

static const struct bin_attribute bin_attr_profile##number##_settings = {	\

	.attr = { .name = "profile" #number "_settings", .mode = 0440 },	\

	.size = KOVAPLUS_SIZE_PROFILE_SETTINGS,				\

	.read = kovaplus_sysfs_read_profilex_settings,			\

	.read_new = kovaplus_sysfs_read_profilex_settings,			\

	.private = &profile_numbers[number-1],				\

};									\

static struct bin_attribute bin_attr_profile##number##_buttons = {	\

static const struct bin_attribute bin_attr_profile##number##_buttons = {	\

	.attr = { .name = "profile" #number "_buttons", .mode = 0440 },	\

	.size = KOVAPLUS_SIZE_PROFILE_BUTTONS,				\

	.read = kovaplus_sysfs_read_profilex_buttons,			\

	.read_new = kovaplus_sysfs_read_profilex_buttons,			\

	.private = &profile_numbers[number-1],				\

};

PROFILE_ATTR(1);
@@ -379,7 +379,7 @@ static struct attribute *kovaplus_attrs[] = { 
	NULL,

};



static struct bin_attribute *kovaplus_bin_attributes[] = {

static const struct bin_attribute *const kovaplus_bin_attributes[] = {

	&bin_attr_control,

	&bin_attr_info,

	&bin_attr_profile_settings,
@@ -399,7 +399,7 @@ static struct bin_attribute *kovaplus_bin_attributes[] = { 


static const struct attribute_group kovaplus_group = {

	.attrs = kovaplus_attrs,

	.bin_attrs = kovaplus_bin_attributes,

	.bin_attrs_new = kovaplus_bin_attributes,

};



static const struct attribute_group *kovaplus_groups[] = {