Commit 8e3d0b8d authored by Ricardo B. Marliere's avatar Ricardo B. Marliere Committed by Michael Ellerman
Browse files

powerpc: mpic: make mpic_subsys const 



Since commit d492cc25 ("driver core: device.h: make struct
bus_type a const *"), the driver core can properly handle constant
struct bus_type, move the mpic_subsys variable to be a constant
structure as well, placing it into read-only memory which can not be
modified at runtime.

Suggested-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatar"Ricardo B. Marliere" <ricardo@marliere.net>
Reviewed-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240212-bus_cleanup-powerpc2-v2-3-8441b3f77827@marliere.net
parent 565206aa

arch/powerpc/include/asm/mpic.h

+1 −1
Original line number Diff line number Diff line
@@ -336,7 +336,7 @@ struct mpic 
#endif

};



extern struct bus_type mpic_subsys;

extern const struct bus_type mpic_subsys;



/*

 * MPIC flags (passed to mpic_alloc)

arch/powerpc/sysdev/mpic.c

+1 −1
Original line number Diff line number Diff line
@@ -49,7 +49,7 @@ 
#define DBG(fmt...)

#endif



struct bus_type mpic_subsys = {

const struct bus_type mpic_subsys = {

	.name = "mpic",

	.dev_name = "mpic",

};