linux-kernel - Re: [PATCH 02/17] sparc64: enable HAVE_COPY_THREAD

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Date:   Tue, 23 Jun 2020 10:42:28 +0200
From:   Christian Brauner <christian.brauner@...ntu.com>
To:     David Miller <davem@...emloft.net>
Cc:     linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
        arnd@...db.de, guoren@...nel.org, linux-csky@...r.kernel.org,
        sparclinux@...r.kernel.org
Subject: Re: [PATCH 02/17] sparc64: enable HAVE_COPY_THREAD_TLS

On Mon, Jun 22, 2020 at 08:35:16PM -0700, David Miller wrote:
> From: Christian Brauner <christian.brauner@...ntu.com>
> Date: Tue, 23 Jun 2020 01:43:11 +0200
> 
> > diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S
> > index db42b4fb3708..192f3a28a2b7 100644
> > --- a/arch/sparc/kernel/syscalls.S
> > +++ b/arch/sparc/kernel/syscalls.S
> > @@ -86,19 +86,22 @@ sys32_rt_sigreturn:
> >  	 * during system calls...
> >  	 */
> >  	.align	32
> > -sys_vfork: /* Under Linux, vfork and fork are just special cases of clone. */
> > -	sethi	%hi(0x4000 | 0x0100 | SIGCHLD), %o0
> > -	or	%o0, %lo(0x4000 | 0x0100 | SIGCHLD), %o0
> > -	ba,pt	%xcc, sys_clone
> > +sys_vfork:
> > +	flushw
> > +	ba,pt	%xcc, sparc_vfork
> > +	add	%sp, PTREGS_OFF, %o0
> 
> Please indent branch delay slot instructions with one extra space, as
> was done in the code you are changing.
> 
> > +	ba,pt	%xcc, sparc_fork
> > +	add	%sp, PTREGS_OFF, %o0
> 
> Likewise.
> 
> > +	ba,pt	%xcc, sparc_clone
> > +	add	%sp, PTREGS_OFF, %o0
> 
> Likewise.

Fixed, thanks for taking a look again! This somehow slipped past me when
applying. 

Christian