linux-kernel - Re: [PATCH] powerpc: add new required termio functions

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Date:	Wed, 12 Sep 2007 21:16:19 +1000
From:	Michael Neuling <mikey@...ling.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
cc:	Heiko Carstens <heiko.carstens@...ibm.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	paulus@...ba.org, Alan Cox <alan@...hat.com>,
	"David S. Miller" <davem@...emloft.net>,
	linux-kernel@...r.kernel.org, linuxppc-dev@...abs.org,
	Martin Schwidefsky <schwidefsky@...ibm.com>
Subject: Re: [PATCH] powerpc: add new required termio functions 

In message <20070912040109.3f6a9149.akpm@...ux-foundation.org> you wrote:
> On Wed, 12 Sep 2007 12:20:32 +0200 Heiko Carstens <heiko.carstens@...ibm.com> wrote:
> 
> > On Wed, Sep 12, 2007 at 12:04:39PM +1000, Michael Neuling wrote:
> > > The "tty: termios locking functions break with new termios type" patch
> > > (f629307c857c030d5a3dd777fee37c8bb395e171) breaks the powerpc compile.
> > > [...]
> > > I'm guessing other architectures are broken too?
> > 
> > FWIW, the above quoted patch breaks s390 as well.
> 
> Does this fix it?

FYI it does fix powerpc, but I suspect you were asking about s390 here.

Mikey

> 
> diff -puN drivers/char/tty_ioctl.c~powerpc-add-new-required-termio-functions 
drivers/char/tty_ioctl.c
> --- a/drivers/char/tty_ioctl.c~powerpc-add-new-required-termio-functions
> +++ a/drivers/char/tty_ioctl.c
> @@ -795,6 +795,19 @@ int n_tty_ioctl(struct tty_struct * tty,
>  			if (L_ICANON(tty))
>  				retval = inq_canon(tty);
>  			return put_user(retval, (unsigned int __user *) arg);
> +#ifndef TCGETS2
> +		case TIOCGLCKTRMIOS:
> +			if (kernel_termios_to_user_termios((struct termios __us
er *)arg, real_tty->termios_locked))
> +				return -EFAULT;
> +			return 0;
> +
> +		case TIOCSLCKTRMIOS:
> +			if (!capable(CAP_SYS_ADMIN))
> +				return -EPERM;
> +			if (user_termios_to_kernel_termios(real_tty->termios_lo
cked, (struct termios __user *) arg))
> +				return -EFAULT;
> +			return 0;
> +#else
>  		case TIOCGLCKTRMIOS:
>  			if (kernel_termios_to_user_termios_1((struct termios __
user *)arg, real_tty->termios_locked))
>  				return -EFAULT;
> @@ -806,6 +819,7 @@ int n_tty_ioctl(struct tty_struct * tty,
>  			if (user_termios_to_kernel_termios_1(real_tty->termios_
locked, (struct termios __user *) arg))
>  				return -EFAULT;
>  			return 0;
> +#endif
>  
>  		case TIOCPKT:
>  		{
> _
> 
-
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