nubus: Make nubus_bus_type static and constant
Now that the driver core can properly handle constant struct bus_type, move the nubus_bus_type variable to be a constant structure as well, placing it into read-only memory which can not be modified at runtime. It's also never used outside of drivers/nubus/bus.c so make it static and don't export it as no one is using it. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Finn Thain <fthain@linux-m68k.org> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/r/2023121940-enlarged-editor-c9a8@gregkh Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
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@ -32,12 +32,11 @@ static void nubus_device_remove(struct device *dev)
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ndrv->remove(to_nubus_board(dev));
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}
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struct bus_type nubus_bus_type = {
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static const struct bus_type nubus_bus_type = {
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.name = "nubus",
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.probe = nubus_device_probe,
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.remove = nubus_device_remove,
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};
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EXPORT_SYMBOL(nubus_bus_type);
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int nubus_driver_register(struct nubus_driver *ndrv)
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{
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@ -89,8 +89,6 @@ struct nubus_driver {
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void (*remove)(struct nubus_board *board);
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};
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extern struct bus_type nubus_bus_type;
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/* Generic NuBus interface functions, modelled after the PCI interface */
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#ifdef CONFIG_PROC_FS
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extern bool nubus_populate_procfs;
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