Re: [PATCH v1] LoongArch: Remove dead code in relocate_new_kernel

From: Huacai Chen
Date: Wed Sep 20 2023 - 02:28:27 EST


Queued for loongarch-next, thanks.

Huacai

On Tue, Sep 19, 2023 at 5:24 PM Jinyang He <hejinyang@xxxxxxxxxxx> wrote:
>
> Not need my tag. Youling found that before, and simply talked about it
> to me.
>
> Thanks.
>
>
> On 2023-09-19 17:07, Tiezhu Yang wrote:
> > The initial aim is to silence the following objtool warning:
> >
> > arch/loongarch/kernel/relocate_kernel.o: warning: objtool: relocate_new_kernel+0x74: unreachable instruction
> >
> > There are two adjacent "b" instructions, the second one is unreachable,
> > it is dead code, just remove it.
> >
> > Co-developed-by: Jinyang He <hejinyang@xxxxxxxxxxx>
> > Signed-off-by: Jinyang He <hejinyang@xxxxxxxxxxx>
> > Co-developed-by: Youling Tang <tangyouling@xxxxxxxxxxx>
> > Signed-off-by: Youling Tang <tangyouling@xxxxxxxxxxx>
> > Signed-off-by: Tiezhu Yang <yangtiezhu@xxxxxxxxxxx>
> > ---
> > arch/loongarch/kernel/relocate_kernel.S | 1 -
> > 1 file changed, 1 deletion(-)
> >
> > diff --git a/arch/loongarch/kernel/relocate_kernel.S b/arch/loongarch/kernel/relocate_kernel.S
> > index d132525..f49f6b0 100644
> > --- a/arch/loongarch/kernel/relocate_kernel.S
> > +++ b/arch/loongarch/kernel/relocate_kernel.S
> > @@ -72,7 +72,6 @@ copy_word:
> > LONG_ADDI s5, s5, -1
> > beqz s5, process_entry
> > b copy_word
> > - b process_entry
> >
> > done:
> > ibar 0
>
>