Re: [PATCH] runtime constants: move list of constants to vmlinux.lds.h

[Will Deacon]

On Tue, Jul 30, 2024 at 10:15:16PM +0200, Jann Horn wrote:
> Refactor the list of constant variables into a macro.
> This should make it easier to add more constants in the future.
> 
> Signed-off-by: Jann Horn <jannh@xxxxxxxxxx>
> ---
> I'm not sure whose tree this has to go through - I guess Arnd's?
> ---
>  arch/arm64/kernel/vmlinux.lds.S   | 3 +--
>  arch/s390/kernel/vmlinux.lds.S    | 3 +--
>  arch/x86/kernel/vmlinux.lds.S     | 3 +--
>  include/asm-generic/vmlinux.lds.h | 4 ++++
>  4 files changed, 7 insertions(+), 6 deletions(-)
> 
> diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S
> index 55a8e310ea12..58d89d997d05 100644
> --- a/arch/arm64/kernel/vmlinux.lds.S
> +++ b/arch/arm64/kernel/vmlinux.lds.S
> @@ -261,14 +261,13 @@ SECTIONS
>  		*(.init.altinstructions .init.bss)	/* from the EFI stub */
>  	}
>  	.exit.data : {
>  		EXIT_DATA
>  	}
>  
> -	RUNTIME_CONST(shift, d_hash_shift)
> -	RUNTIME_CONST(ptr, dentry_hashtable)
> +	RUNTIME_CONST_VARIABLES
>  
>  	PERCPU_SECTION(L1_CACHE_BYTES)
>  	HYPERVISOR_PERCPU_SECTION
>  
>  	HYPERVISOR_RELOC_SECTION

Acked-by: Will Deacon <will@xxxxxxxxxx>

I'm assuming Arnd will pick this up.

Will