[PATCH 1/2] powerpc: Remove Mac-on-Linux hooks

[Michael Ellerman]

Ben Hutchings <ben at decadent.org.uk> writes:

> [ Unknown signature status ]
> The symbols exported for use by MOL aren't getting CRCs and I was
> about to fix that.  But MOL is dead upstream, and the latest work on
> it was to make it use KVM instead of its own kernel module.  So remove
> them instead.

Sounds good to me.

> diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S
> index 9d963547d243..87998430cd9b 100644
> --- a/arch/powerpc/kernel/head_32.S
> +++ b/arch/powerpc/kernel/head_32.S
> @@ -735,11 +735,7 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_NEED_DTLB_SW_LRU)
>  	EXCEPTION(0x2c00, Trap_2c, unknown_exception, EXC_XFER_EE)
>  	EXCEPTION(0x2d00, Trap_2d, unknown_exception, EXC_XFER_EE)
>  	EXCEPTION(0x2e00, Trap_2e, unknown_exception, EXC_XFER_EE)
> -	EXCEPTION(0x2f00, MOLTrampoline, unknown_exception, EXC_XFER_EE_LITE)
> -
> -	.globl mol_trampoline
> -	.set mol_trampoline, i0x2f00
> -	EXPORT_SYMBOL(mol_trampoline)
> +	EXCEPTION(0x2f00, Trap_2f, unknown_exception, EXC_XFER_EE)
>  
>  	. = 0x3000
>  
> @@ -1289,7 +1285,6 @@ intercept_table:
>  	.long 0, 0, 0, 0, 0, 0, 0, 0
>  	.long 0, 0, 0, 0, 0, 0, 0, 0
>  	.long 0, 0, 0, 0, 0, 0, 0, 0
> -EXPORT_SYMBOL(intercept_table)

I don't see intercept_table used anywhere, so I think we can just remove
it entirely?

> diff --git a/arch/powerpc/mm/hash_low_32.S b/arch/powerpc/mm/hash_low_32.S
> index 09cc50c8dace..cddf14f60bf3 100644
> --- a/arch/powerpc/mm/hash_low_32.S
> +++ b/arch/powerpc/mm/hash_low_32.S
> @@ -34,7 +34,6 @@
>  	.globl mmu_hash_lock
>  mmu_hash_lock:
>  	.space	4
> -EXPORT_SYMBOL(mmu_hash_lock)
>  #endif /* CONFIG_SMP */

And now mmu_hash_lock is only used in this file, so doesn't need to be
global anymore.

I can fix both of those up here, will just wait a bit to see if anyone
else has comments.

cheers