Commit 8ce6b508 authored by Adrian Barnaś's avatar Adrian Barnaś Committed by Greg Kroah-Hartman
Browse files

drivers: rapidio: make rio_bus_type const 



Because driver core can properly handle constant struct bus_type,
move the rio_bus_type to be a constant structure as well, placing it into
read-only memory which can not be modified at runtime.

Signed-off-by: default avatarAdrian Barnaś <abarnas@google.com>
Reviewed-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/20250919073201.751348-1-abarnas@google.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 61e60630

drivers/rapidio/rio-driver.c

+1 −1
Original line number Diff line number Diff line
@@ -227,7 +227,7 @@ struct class rio_mport_class = { 
};

EXPORT_SYMBOL_GPL(rio_mport_class);



struct bus_type rio_bus_type = {

const struct bus_type rio_bus_type = {

	.name = "rapidio",

	.match = rio_match_bus,

	.dev_groups = rio_dev_groups,

include/linux/rio.h

+1 −1
Original line number Diff line number Diff line
@@ -78,7 +78,7 @@ 
#define RIO_CTAG_RESRVD	0xfffe0000 /* Reserved */

#define RIO_CTAG_UDEVID	0x0001ffff /* Unique device identifier */



extern struct bus_type rio_bus_type;

extern const struct bus_type rio_bus_type;

extern struct class rio_mport_class;



struct rio_mport;