powerpc: mpic: make mpic_subsys const
Since commit d492cc2573
("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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: "Ricardo B. Marliere" <ricardo@marliere.net>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240212-bus_cleanup-powerpc2-v2-3-8441b3f77827@marliere.net
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parent
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@ -336,7 +336,7 @@ struct mpic
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#endif
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};
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extern struct bus_type mpic_subsys;
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extern const struct bus_type mpic_subsys;
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/*
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* MPIC flags (passed to mpic_alloc)
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@ -49,7 +49,7 @@
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#define DBG(fmt...)
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#endif
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struct bus_type mpic_subsys = {
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const struct bus_type mpic_subsys = {
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.name = "mpic",
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.dev_name = "mpic",
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};
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