Fix IRQ flag handling naming

Fix IRQ flag handling naming

Fix the IRQ flag handling naming.  In linux/irqflags.h under one configuration,
it maps:

	local_irq_enable() -> raw_local_irq_enable()
	local_irq_disable() -> raw_local_irq_disable()
	local_irq_save() -> raw_local_irq_save()
	...

and under the other configuration, it maps:

	raw_local_irq_enable() -> local_irq_enable()
	raw_local_irq_disable() -> local_irq_disable()
	raw_local_irq_save() -> local_irq_save()
	...

This is quite confusing.  There should be one set of names expected of the
arch, and this should be wrapped to give another set of names that are expected
by users of this facility.

Change this to have the arch provide:

	flags = arch_local_save_flags()
	flags = arch_local_irq_save()
	arch_local_irq_restore(flags)
	arch_local_irq_disable()
	arch_local_irq_enable()
	arch_irqs_disabled_flags(flags)
	arch_irqs_disabled()
	arch_safe_halt()

Then linux/irqflags.h wraps these to provide:

	raw_local_save_flags(flags)
	raw_local_irq_save(flags)
	raw_local_irq_restore(flags)
	raw_local_irq_disable()
	raw_local_irq_enable()
	raw_irqs_disabled_flags(flags)
	raw_irqs_disabled()
	raw_safe_halt()

with type checking on the flags 'arguments', and then wraps those to provide:

	local_save_flags(flags)
	local_irq_save(flags)
	local_irq_restore(flags)
	local_irq_disable()
	local_irq_enable()
	irqs_disabled_flags(flags)
	irqs_disabled()
	safe_halt()

with tracing included if enabled.

The arch functions can now all be inline functions rather than some of them
having to be macros.

Signed-off-by: David Howells <[email protected]> [X86, FRV, MN10300]
Signed-off-by: Chris Metcalf <[email protected]> [Tile]
Signed-off-by: Michal Simek <[email protected]> [Microblaze]
Tested-by: Catalin Marinas <[email protected]> [ARM]
Acked-by: Thomas Gleixner <[email protected]>
Acked-by: Haavard Skinnemoen <[email protected]> [AVR]
Acked-by: Tony Luck <[email protected]> [IA-64]
Acked-by: Hirokazu Takata <[email protected]> [M32R]
Acked-by: Greg Ungerer <[email protected]> [M68K/M68KNOMMU]
Acked-by: Ralf Baechle <[email protected]> [MIPS]
Acked-by: Kyle McMartin <[email protected]> [PA-RISC]
Acked-by: Paul Mackerras <[email protected]> [PowerPC]
Acked-by: Martin Schwidefsky <[email protected]> [S390]
Acked-by: Chen Liqin <[email protected]> [Score]
Acked-by: Matt Fleming <[email protected]> [SH]
Acked-by: David S. Miller <[email protected]> [Sparc]
Acked-by: Chris Zankel <[email protected]> [Xtensa]
Reviewed-by: Richard Henderson <[email protected]> [Alpha]
Reviewed-by: Yoshinori Sato <[email protected]> [H8300]
Cc: [email protected] [CRIS]
Cc: [email protected] [CRIS]
Cc: [email protected]