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[PATCH] sched: remove unused __HAVE_THREAD_FUNCTIONS hook support

David Disseldorp posted 1 patch 1 year, 5 months ago
There is a newer version of this series
include/linux/sched.h            | 2 +-
include/linux/sched/task_stack.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
[PATCH] sched: remove unused __HAVE_THREAD_FUNCTIONS hook support
Posted by David Disseldorp 1 year, 5 months ago 
__HAVE_THREAD_FUNCTIONS could be defined by architectures wishing to
provide their own task_thread_info(), task_stack_page(),
setup_thread_stack() and end_of_stack() hooks.

Commit cf8e8658100d ("arch: Remove Itanium (IA-64) architecture")
removed the last upstream consumer of __HAVE_THREAD_FUNCTIONS, so change
the remaining !CONFIG_THREAD_INFO_IN_TASK && !__HAVE_THREAD_FUNCTIONS
conditionals to only check for the former case.

Signed-off-by: David Disseldorp <ddiss@suse.de>
---
 include/linux/sched.h            | 2 +-
 include/linux/sched/task_stack.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index f8d150343d42..9dbcdfe173cf 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1874,7 +1874,7 @@ extern unsigned long init_stack[THREAD_SIZE / sizeof(unsigned long)];
 
 #ifdef CONFIG_THREAD_INFO_IN_TASK
 # define task_thread_info(task)	(&(task)->thread_info)
-#elif !defined(__HAVE_THREAD_FUNCTIONS)
+#else
 # define task_thread_info(task)	((struct thread_info *)(task)->stack)
 #endif
 
diff --git a/include/linux/sched/task_stack.h b/include/linux/sched/task_stack.h
index ccd72b978e1f..55042ff01a6d 100644
--- a/include/linux/sched/task_stack.h
+++ b/include/linux/sched/task_stack.h
@@ -33,7 +33,7 @@ static __always_inline unsigned long *end_of_stack(const struct task_struct *tas
 #endif
 }
 
-#elif !defined(__HAVE_THREAD_FUNCTIONS)
+#else
 
 #define task_stack_page(task)	((void *)(task)->stack)
 
-- 
2.43.0
Re: [PATCH] sched: remove unused __HAVE_THREAD_FUNCTIONS hook support
Posted by David Disseldorp 1 year, 5 months ago 
[cc'ing Ard as ia64 remover]

Ping - any thoughts on this patch?

On Thu, 22 Aug 2024 04:33:28 +0000, David Disseldorp wrote:

> __HAVE_THREAD_FUNCTIONS could be defined by architectures wishing to
> provide their own task_thread_info(), task_stack_page(),
> setup_thread_stack() and end_of_stack() hooks.
> 
> Commit cf8e8658100d ("arch: Remove Itanium (IA-64) architecture")
> removed the last upstream consumer of __HAVE_THREAD_FUNCTIONS, so change
> the remaining !CONFIG_THREAD_INFO_IN_TASK && !__HAVE_THREAD_FUNCTIONS
> conditionals to only check for the former case.
> 
> Signed-off-by: David Disseldorp <ddiss@suse.de>
> ---
>  include/linux/sched.h            | 2 +-
>  include/linux/sched/task_stack.h | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/include/linux/sched.h b/include/linux/sched.h
> index f8d150343d42..9dbcdfe173cf 100644
> --- a/include/linux/sched.h
> +++ b/include/linux/sched.h
> @@ -1874,7 +1874,7 @@ extern unsigned long init_stack[THREAD_SIZE / sizeof(unsigned long)];
>  
>  #ifdef CONFIG_THREAD_INFO_IN_TASK
>  # define task_thread_info(task)	(&(task)->thread_info)
> -#elif !defined(__HAVE_THREAD_FUNCTIONS)
> +#else
>  # define task_thread_info(task)	((struct thread_info *)(task)->stack)
>  #endif
>  
> diff --git a/include/linux/sched/task_stack.h b/include/linux/sched/task_stack.h
> index ccd72b978e1f..55042ff01a6d 100644
> --- a/include/linux/sched/task_stack.h
> +++ b/include/linux/sched/task_stack.h
> @@ -33,7 +33,7 @@ static __always_inline unsigned long *end_of_stack(const struct task_struct *tas
>  #endif
>  }
>  
> -#elif !defined(__HAVE_THREAD_FUNCTIONS)
> +#else
>  
>  #define task_stack_page(task)	((void *)(task)->stack)
>
Re: [PATCH] sched: remove unused __HAVE_THREAD_FUNCTIONS hook support
Posted by Ard Biesheuvel 1 year, 5 months ago 
On Fri, 30 Aug 2024 at 03:26, David Disseldorp <ddiss@suse.de> wrote:
>
> [cc'ing Ard as ia64 remover]
>
> Ping - any thoughts on this patch?
>
> On Thu, 22 Aug 2024 04:33:28 +0000, David Disseldorp wrote:
>
> > __HAVE_THREAD_FUNCTIONS could be defined by architectures wishing to
> > provide their own task_thread_info(), task_stack_page(),
> > setup_thread_stack() and end_of_stack() hooks.
> >
> > Commit cf8e8658100d ("arch: Remove Itanium (IA-64) architecture")
> > removed the last upstream consumer of __HAVE_THREAD_FUNCTIONS, so change
> > the remaining !CONFIG_THREAD_INFO_IN_TASK && !__HAVE_THREAD_FUNCTIONS
> > conditionals to only check for the former case.
> >
> > Signed-off-by: David Disseldorp <ddiss@suse.de>

Reviewed-by: Ard Biesheuvel <ardb@kernel.org>


> > ---
> >  include/linux/sched.h            | 2 +-
> >  include/linux/sched/task_stack.h | 2 +-
> >  2 files changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/include/linux/sched.h b/include/linux/sched.h
> > index f8d150343d42..9dbcdfe173cf 100644
> > --- a/include/linux/sched.h
> > +++ b/include/linux/sched.h
> > @@ -1874,7 +1874,7 @@ extern unsigned long init_stack[THREAD_SIZE / sizeof(unsigned long)];
> >
> >  #ifdef CONFIG_THREAD_INFO_IN_TASK
> >  # define task_thread_info(task)      (&(task)->thread_info)
> > -#elif !defined(__HAVE_THREAD_FUNCTIONS)
> > +#else
> >  # define task_thread_info(task)      ((struct thread_info *)(task)->stack)
> >  #endif
> >
> > diff --git a/include/linux/sched/task_stack.h b/include/linux/sched/task_stack.h
> > index ccd72b978e1f..55042ff01a6d 100644
> > --- a/include/linux/sched/task_stack.h
> > +++ b/include/linux/sched/task_stack.h
> > @@ -33,7 +33,7 @@ static __always_inline unsigned long *end_of_stack(const struct task_struct *tas
> >  #endif
> >  }
> >
> > -#elif !defined(__HAVE_THREAD_FUNCTIONS)
> > +#else
> >
> >  #define task_stack_page(task)        ((void *)(task)->stack)
> >
>

Patchew 2.1-devel-b67e4c2

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