Subject: Re: [PATCH] powerpc: restore current_thread_info()

From: Yury Norov <[email-masked]>
Date: Tue, 7 May 2019 16:07:46 -0700

On Tue, May 07, 2019 at 11:58:56PM +0100, Al Viro wrote:
> On Tue, May 07, 2019 at 03:51:21PM -0700, Yury Norov wrote:
> > Commit ed1cd6deb013 ("powerpc: Activate CONFIG_THREAD_INFO_IN_TASK")
> > removes the function current_thread_info(). It's wrong because the
> > function is used in non-arch code and is part of API.
> 
> In include/linux/thread_info.h:
> 
> #ifdef CONFIG_THREAD_INFO_IN_TASK
> /*
>  * For CONFIG_THREAD_INFO_IN_TASK kernels we need <asm/current.h> for the
>  * definition of current, but for !CONFIG_THREAD_INFO_IN_TASK kernels,
>  * including <asm/current.h> can cause a circular dependency on some platforms.
>  */
> #include <asm/current.h>
> #define current_thread_info() ((struct thread_info *)current)
> #endif

Ah, sorry. Then it might be my rebase issue. I was confused because Christophe
didn't remove the comment to current_thread_info(), so I decided he
removed it erroneously.