Re: [PATCH v2 13/44] x86/asm/head: remove useless zeroed word

[Brian Gerst]

On Thu, Aug 4, 2016 at 6:22 PM, Josh Poimboeuf <jpoimboe@xxxxxxxxxx> wrote:
> This zeroed word has no apparent purpose, so remove it.
>
> Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
> ---
>  arch/x86/kernel/head_64.S | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
> index 8822c20..ac6e27e 100644
> --- a/arch/x86/kernel/head_64.S
> +++ b/arch/x86/kernel/head_64.S
> @@ -326,7 +326,6 @@ ENDPROC(start_cpu0)
>         .quad   INIT_PER_CPU_VAR(irq_stack_union)
>         GLOBAL(initial_stack)
>         .quad  init_thread_union+THREAD_SIZE-8
> -       .word  0
>         __FINITDATA
>
>  bad_address:


FYI the word used to be the SS segment selector for the LSS
instruction, which isn't needed in 64-bit mode.

--
Brian Gerst