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Message-ID: <20110519181931.GA22506@redhat.com>
Date: Thu, 19 May 2011 20:19:31 +0200
From: Oleg Nesterov <oleg@...hat.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Mike Frysinger <vapier.adi@...il.com>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Tejun Heo <tj@...nel.org>,
"Nikita V. Youshchenko" <nyoushchenko@...sta.com>,
Matt Fleming <matt@...sole-pimps.org>,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] signal: trivial, fix the "timespec declared inside
parameter list" warning
On 05/18, Andrew Morton wrote:
>
> On Mon, 16 May 2011 14:57:29 +0200
> Oleg Nesterov <oleg@...hat.com> wrote:
>
> > Fix the compile warning, do_sigtimedwait(struct timespec *) in signal.h
> > needs the forward declaration of timespec.
> >
>
> The offending patch is in your tree, so you may as well put this patch
> in there too.
Yes, it is already in my tree, sorry for confusion.
> > --- sigprocmask/include/linux/signal.h~15_stw_warning 2011-05-12 20:44:43.000000000 +0200
> > +++ sigprocmask/include/linux/signal.h 2011-05-16 14:53:08.000000000 +0200
> > @@ -234,6 +234,9 @@ static inline int valid_signal(unsigned
> > return sig <= _NSIG ? 1 : 0;
> > }
> >
> > +struct timespec;
> > +struct pt_regs;
> > +
> > extern int next_signal(struct sigpending *pending, sigset_t *mask);
> > extern int do_send_sig_info(int sig, struct siginfo *info,
> > struct task_struct *p, bool group);
>
> Please put the forward declarations at top-of-file. In this case,
> inside #ifdef __KERNEL__. This reduces the risk of accumulating
> duplicated forward declarations, as has happened in the past.
This is what Mike suggested from the very beginnig. Perhaps this
would be better but since I already applied this patch... I'd prefer
to not test my git skills, unless you or Mike object.
Oleg.
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