linux-kernel - Re: stable-3.0: s390 build breakage [was: Linux 3.0.24]

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Message-ID: <4F621E1A.5000602@gmail.com>
Date:	Thu, 15 Mar 2012 17:51:38 +0100
From:	Jiri Slaby <jirislaby@...il.com>
To:	Willy Tarreau <w@....eu>
CC:	Greg KH <gregkh@...uxfoundation.org>, Jiri Slaby <jslaby@...e.cz>,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	torvalds@...ux-foundation.org, stable@...r.kernel.org, lwn@....net,
	Heiko Carstens <heiko.carstens@...ibm.com>
Subject: Re: stable-3.0: s390 build breakage [was: Linux 3.0.24]

On 03/15/2012 05:49 PM, Willy Tarreau wrote:
> On Thu, Mar 15, 2012 at 09:46:24AM -0700, Greg KH wrote:
>> On Thu, Mar 15, 2012 at 05:27:26PM +0100, Jiri Slaby wrote:
>>> On 03/15/2012 11:48 AM, Jiri Slaby wrote:
>>>> On 03/12/2012 09:34 PM, Greg KH wrote:
>>>>> I'm announcing the release of the 3.0.24 kernel.
>>>> ...
>>>>> Heiko Carstens (1): compat: fix compile breakage on s390
>>>>
>>>> It looks like we need the same fix as for 2.6.32.59:
>>>> arch/s390/kernel/setup.c: In function 'setup_addressing_mode':
>>>> arch/s390/kernel/setup.c:328: error: 'PSW32_ASC_PRIMARY' undeclared
>>>> (first use in this function)
>>>> arch/s390/kernel/setup.c:328: error: (Each undeclared identifier is
>>>> reported only once
>>>> arch/s390/kernel/setup.c:328: error: for each function it appears in.)
>>>
>>> And when that one is fixed, there is another error:
>>> drivers/s390/char/fs3270.c: In function 'fs3270_ioctl':
>>> drivers/s390/char/fs3270.c:335: error: implicit declaration of function
>>> 'compat_ptr'
>>> drivers/s390/char/fs3270.c:335: warning: assignment makes pointer from
>>> integer without a cast
>>
>> Ick, have a patch for this?
> 
> This one is declared in arch/s390/include/asm/compat.h:
> 
> static inline void __user *compat_ptr(compat_uptr_t uptr)
> {
>         return (void __user *)(unsigned long)(uptr & 0x7fffffffUL);
> }
> 
> In 2.6.32, fs3270.c include linux/compat.h. In 3.0 it includes asm/compat.h
> instead. I would have thought the later would have been enough.

But it was changed to linux/compat.h in 3.0.24 -- that's why it doesn't
build. So the same fix as for setup.c should help here.

thanks,
-- 
js
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