Re: [PATCH] riscv: hibernation: Remove duplicate call of suspend_restore_csrs

From: Conor Dooley
Date: Fri May 19 2023 - 07:28:35 EST


Hey,

On Fri, May 19, 2023 at 11:14:27AM +0000, JeeHeng Sia wrote:

> > The suspend_restore_csrs is called in both __hibernate_cpu_resume
> > and the `else` of subsequent swsusp_arch_suspend.
> >
> > Removing the first call makes both suspend_{save,restore}_csrs
> > left in swsusp_arch_suspend for clean code.
> >
> > Signed-off-by: Song Shuai <suagrfillet@xxxxxxxxx>
> > Signed-off-by: Song Shuai <songshuaishuai@xxxxxxxxxxx>

BTW, why the two email addresses? The tinylab one here seems entirely
redundant - unless it is your employer, in which case should it be the
only SoB address & also in the author field?

Also, Fixes tag?

> > ---
> > arch/riscv/kernel/hibernate-asm.S | 1 -
> > 1 file changed, 1 deletion(-)
> >
> > diff --git a/arch/riscv/kernel/hibernate-asm.S b/arch/riscv/kernel/hibernate-asm.S
> > index 5c76671c7e15..d698dd7df637 100644
> > --- a/arch/riscv/kernel/hibernate-asm.S
> > +++ b/arch/riscv/kernel/hibernate-asm.S
> > @@ -28,7 +28,6 @@ ENTRY(__hibernate_cpu_resume)
> >
> > REG_L a0, hibernate_cpu_context
> >
> > - suspend_restore_csrs
> > suspend_restore_regs

> Good catch. This function is invoked twice to restore the CSRs.
> I am good with removing this function from here.

If that's a review, then please either give an R-b or A-b tag :)

Thanks,
Conor.

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