Commit 896be785 authored by Ricardo B. Marliere's avatar Ricardo B. Marliere Committed by Greg Kroah-Hartman
Browse files

bus: fsl-mc: constify the struct device_type usage 



Since commit aed65af1 ("drivers: make device_type const"), the driver
core can properly handle constant struct device_type. Move all the
device_type variables used in the bus to be constant structures as well,
placing it into read-only memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarRicardo B. Marliere <ricardo.marliere@suse.com>
Link: https://lore.kernel.org/r/20240904-class_cleanup-fsl-mc-bus-v2-1-83fa25cbdc68@suse.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent bf2aa7df

drivers/bus/fsl-mc/fsl-mc-bus.c

+18 −18
Original line number Diff line number Diff line
@@ -320,90 +320,90 @@ const struct bus_type fsl_mc_bus_type = { 
};

EXPORT_SYMBOL_GPL(fsl_mc_bus_type);



struct device_type fsl_mc_bus_dprc_type = {

const struct device_type fsl_mc_bus_dprc_type = {

	.name = "fsl_mc_bus_dprc"

};

EXPORT_SYMBOL_GPL(fsl_mc_bus_dprc_type);



struct device_type fsl_mc_bus_dpni_type = {

const struct device_type fsl_mc_bus_dpni_type = {

	.name = "fsl_mc_bus_dpni"

};

EXPORT_SYMBOL_GPL(fsl_mc_bus_dpni_type);



struct device_type fsl_mc_bus_dpio_type = {

const struct device_type fsl_mc_bus_dpio_type = {

	.name = "fsl_mc_bus_dpio"

};

EXPORT_SYMBOL_GPL(fsl_mc_bus_dpio_type);



struct device_type fsl_mc_bus_dpsw_type = {

const struct device_type fsl_mc_bus_dpsw_type = {

	.name = "fsl_mc_bus_dpsw"

};

EXPORT_SYMBOL_GPL(fsl_mc_bus_dpsw_type);



struct device_type fsl_mc_bus_dpbp_type = {

const struct device_type fsl_mc_bus_dpbp_type = {

	.name = "fsl_mc_bus_dpbp"

};

EXPORT_SYMBOL_GPL(fsl_mc_bus_dpbp_type);



struct device_type fsl_mc_bus_dpcon_type = {

const struct device_type fsl_mc_bus_dpcon_type = {

	.name = "fsl_mc_bus_dpcon"

};

EXPORT_SYMBOL_GPL(fsl_mc_bus_dpcon_type);



struct device_type fsl_mc_bus_dpmcp_type = {

const struct device_type fsl_mc_bus_dpmcp_type = {

	.name = "fsl_mc_bus_dpmcp"

};

EXPORT_SYMBOL_GPL(fsl_mc_bus_dpmcp_type);



struct device_type fsl_mc_bus_dpmac_type = {

const struct device_type fsl_mc_bus_dpmac_type = {

	.name = "fsl_mc_bus_dpmac"

};

EXPORT_SYMBOL_GPL(fsl_mc_bus_dpmac_type);



struct device_type fsl_mc_bus_dprtc_type = {

const struct device_type fsl_mc_bus_dprtc_type = {

	.name = "fsl_mc_bus_dprtc"

};

EXPORT_SYMBOL_GPL(fsl_mc_bus_dprtc_type);



struct device_type fsl_mc_bus_dpseci_type = {

const struct device_type fsl_mc_bus_dpseci_type = {

	.name = "fsl_mc_bus_dpseci"

};

EXPORT_SYMBOL_GPL(fsl_mc_bus_dpseci_type);



struct device_type fsl_mc_bus_dpdmux_type = {

const struct device_type fsl_mc_bus_dpdmux_type = {

	.name = "fsl_mc_bus_dpdmux"

};

EXPORT_SYMBOL_GPL(fsl_mc_bus_dpdmux_type);



struct device_type fsl_mc_bus_dpdcei_type = {

const struct device_type fsl_mc_bus_dpdcei_type = {

	.name = "fsl_mc_bus_dpdcei"

};

EXPORT_SYMBOL_GPL(fsl_mc_bus_dpdcei_type);



struct device_type fsl_mc_bus_dpaiop_type = {

const struct device_type fsl_mc_bus_dpaiop_type = {

	.name = "fsl_mc_bus_dpaiop"

};

EXPORT_SYMBOL_GPL(fsl_mc_bus_dpaiop_type);



struct device_type fsl_mc_bus_dpci_type = {

const struct device_type fsl_mc_bus_dpci_type = {

	.name = "fsl_mc_bus_dpci"

};

EXPORT_SYMBOL_GPL(fsl_mc_bus_dpci_type);



struct device_type fsl_mc_bus_dpdmai_type = {

const struct device_type fsl_mc_bus_dpdmai_type = {

	.name = "fsl_mc_bus_dpdmai"

};

EXPORT_SYMBOL_GPL(fsl_mc_bus_dpdmai_type);



struct device_type fsl_mc_bus_dpdbg_type = {

const struct device_type fsl_mc_bus_dpdbg_type = {

	.name = "fsl_mc_bus_dpdbg"

};

EXPORT_SYMBOL_GPL(fsl_mc_bus_dpdbg_type);



static struct device_type *fsl_mc_get_device_type(const char *type)

static const struct device_type *fsl_mc_get_device_type(const char *type)

{

	static const struct {

		struct device_type *dev_type;

		const struct device_type *dev_type;

		const char *type;

	} dev_types[] = {

		{ &fsl_mc_bus_dprc_type, "dprc" },

include/linux/fsl/mc.h

+15 −15
Original line number Diff line number Diff line
@@ -438,21 +438,21 @@ struct fsl_mc_device *fsl_mc_get_endpoint(struct fsl_mc_device *mc_dev, 


extern const struct bus_type fsl_mc_bus_type;



extern struct device_type fsl_mc_bus_dprc_type;

extern struct device_type fsl_mc_bus_dpni_type;

extern struct device_type fsl_mc_bus_dpio_type;

extern struct device_type fsl_mc_bus_dpsw_type;

extern struct device_type fsl_mc_bus_dpbp_type;

extern struct device_type fsl_mc_bus_dpcon_type;

extern struct device_type fsl_mc_bus_dpmcp_type;

extern struct device_type fsl_mc_bus_dpmac_type;

extern struct device_type fsl_mc_bus_dprtc_type;

extern struct device_type fsl_mc_bus_dpseci_type;

extern struct device_type fsl_mc_bus_dpdmux_type;

extern struct device_type fsl_mc_bus_dpdcei_type;

extern struct device_type fsl_mc_bus_dpaiop_type;

extern struct device_type fsl_mc_bus_dpci_type;

extern struct device_type fsl_mc_bus_dpdmai_type;

extern const struct device_type fsl_mc_bus_dprc_type;

extern const struct device_type fsl_mc_bus_dpni_type;

extern const struct device_type fsl_mc_bus_dpio_type;

extern const struct device_type fsl_mc_bus_dpsw_type;

extern const struct device_type fsl_mc_bus_dpbp_type;

extern const struct device_type fsl_mc_bus_dpcon_type;

extern const struct device_type fsl_mc_bus_dpmcp_type;

extern const struct device_type fsl_mc_bus_dpmac_type;

extern const struct device_type fsl_mc_bus_dprtc_type;

extern const struct device_type fsl_mc_bus_dpseci_type;

extern const struct device_type fsl_mc_bus_dpdmux_type;

extern const struct device_type fsl_mc_bus_dpdcei_type;

extern const struct device_type fsl_mc_bus_dpaiop_type;

extern const struct device_type fsl_mc_bus_dpci_type;

extern const struct device_type fsl_mc_bus_dpdmai_type;



static inline bool is_fsl_mc_bus_dprc(const struct fsl_mc_device *mc_dev)

{