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SubjectRe: [PATCH] csky: remove unusued thread_saved_pc and *_segments functions/macros
On 2020-06-13 at 10:42:07 +0200, Guo Ren <guoren@kernel.org> wrote:
> Acked-by: Guo Ren <guoren@kernel.org>

Thanks for the Ack. Are you taking this patch through your own tree or
should I directly submit to someone else?

> On Wed, Jun 10, 2020 at 11:45 PM Tobias Klauser <tklauser@distanz.ch> wrote:
> >
> > These are used nowhere in the tree (except for some architectures which
> > define them for their own use) and were already removed for other
> > architectures in:
> >
> > commit 6474924e2b5d ("arch: remove unused macro/function thread_saved_pc()")
> > commit c17c02040bf0 ("arch: remove unused *_segments() macros/functions")
> >
> > Remove them from arch/csky as well.
> >
> > Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
> > ---
> > arch/csky/include/asm/processor.h | 6 ------
> > arch/csky/kernel/process.c | 10 ----------
> > 2 files changed, 16 deletions(-)
> >
> > diff --git a/arch/csky/include/asm/processor.h b/arch/csky/include/asm/processor.h
> > index 24442d8e86f9..4800f6563abb 100644
> > --- a/arch/csky/include/asm/processor.h
> > +++ b/arch/csky/include/asm/processor.h
> > @@ -82,12 +82,6 @@ static inline void release_thread(struct task_struct *dead_task)
> >
> > extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
> >
> > -#define copy_segments(tsk, mm) do { } while (0)
> > -#define release_segments(mm) do { } while (0)
> > -#define forget_segments() do { } while (0)
> > -
> > -extern unsigned long thread_saved_pc(struct task_struct *tsk);
> > -
> > unsigned long get_wchan(struct task_struct *p);
> >
> > #define KSTK_EIP(tsk) (task_pt_regs(tsk)->pc)
> > diff --git a/arch/csky/kernel/process.c b/arch/csky/kernel/process.c
> > index 8b3fad062ab2..3da63cf0bfde 100644
> > --- a/arch/csky/kernel/process.c
> > +++ b/arch/csky/kernel/process.c
> > @@ -30,16 +30,6 @@ asmlinkage void ret_from_kernel_thread(void);
> > */
> > void flush_thread(void){}
> >
> > -/*
> > - * Return saved PC from a blocked thread
> > - */
> > -unsigned long thread_saved_pc(struct task_struct *tsk)
> > -{
> > - struct switch_stack *sw = (struct switch_stack *)tsk->thread.sp;
> > -
> > - return sw->r15;
> > -}
> > -
> > int copy_thread_tls(unsigned long clone_flags,
> > unsigned long usp,
> > unsigned long kthread_arg,
> > --
> > 2.27.0
> >
>
>
> --
> Best Regards
> Guo Ren
>
> ML: https://lore.kernel.org/linux-csky/
>

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