linux-kernel - Re: linux-next: Tree for November 29 (aesni-intel)

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Date:	Mon, 29 Nov 2010 11:56:12 -0800
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	Mathias Krause <minipli@...glemail.com>
CC:	Herbert Xu <herbert@...dor.hengli.com.au>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	Huang Ying <ying.huang@...el.com>,
	Vinodh Gopal <vinodh.gopal@...el.com>,
	linux-next@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	linux-crypto@...r.kernel.org
Subject: Re: linux-next: Tree for November 29 (aesni-intel)

On 11/29/10 11:52, Mathias Krause wrote:
> On 29.11.2010, 20:31 Randy Dunlap wrote:
>> On 11/29/10 11:21, Mathias Krause wrote:
>>> On 29.11.2010, 19:54 Randy Dunlap wrote:
>>>> On 11/29/10 10:26, Mathias Krause wrote:
>>>>> On 29.11.2010, 17:31 Randy Dunlap wrote:
>>>>>> On Mon, 29 Nov 2010 14:03:35 +1100 Stephen Rothwell wrote:
>>>>>>
>>>>>>> Hi all,
>>>>>>>
>>>>>>> Changes since 20101126:
>>>>>>
>>>>>>
>>>>>> on i386 builds, I get tons of these (and more) errors:
>>>>>>
>>>>>> arch/x86/crypto/aesni-intel_asm.S:841: Error: bad register name `%r12'
>>>>>> arch/x86/crypto/aesni-intel_asm.S:842: Error: bad register name `%r13'
>>>>>> arch/x86/crypto/aesni-intel_asm.S:843: Error: bad register name `%r14'
>>>>>> arch/x86/crypto/aesni-intel_asm.S:844: Error: bad register name `%rsp'
>>>>>> arch/x86/crypto/aesni-intel_asm.S:849: Error: bad register name `%rsp'
>>>>>> arch/x86/crypto/aesni-intel_asm.S:850: Error: bad register name `%rsp'
>>>>>> arch/x86/crypto/aesni-intel_asm.S:851: Error: bad register name `%r9'
>>>>>>
>>>>>> even though the kernel .config file says:
>>>>>>
>>>>>> CONFIG_CRYPTO_AES=m
>>>>>> CONFIG_CRYPTO_AES_586=m
>>>>>> CONFIG_CRYPTO_AES_NI_INTEL=m
>>>>>>
>>>>>> Should arch/x86/crypto/aesni-intel_asm.S be testing
>>>>>> #ifdef CONFIG_X86_64
>>>>>> instead of
>>>>>> #ifdef __x86_64__
>>>>>> or does that not matter?
>>>>>>
>>>>>> or is this a toolchain issue?
>>>>>
>>>>> Well, __x86_64__ should be a build-in define of the compiler while
>>>>> CONFIG_X86_64 is defined for 64 bit builds in include/generated/autoconf.h.
>>>>> So by using the latter we should be on the safe side but if your compiler
>>>>> defines __x86_64__ for 32-bit builds it's simply broken. Also git grep
>>>>> showed quite a few more places using __x86_64__ so those would miscompile on
>>>>> your toolchain, too.
>>>>>
>>>>> But it looks like linux-next is just missing
>>>>> 559ad0ff1368baea14dbc3207d55b02bd69bda4b from Herbert's git repo at
>>>>> git://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git.
>>>>> That should fix the build issue.
>>>>
>>>> The build problem still happens when that patch is applied.
>>>
>>> That's weird. So it must be something with your toolchain.
>>> Can you please post the output of the following commands?:
>>>
>>> $ touch /tmp/null.c; cc -m32 -dD -E /tmp/null.c | grep -E 'x86|i.86'
>>
>> #define __i386 1
>> #define __i386__ 1
>> #define i386 1
>> #define __i586 1
>> #define __i586__ 1
>>
>>> $ touch /tmp/null.c; cc -m64 -dD -E /tmp/null.c | grep -E 'x86|i.86'
>>
>> #define __x86_64 1
>> #define __x86_64__ 1
>>
>> So that's not the problem... and the patch below didn't help.
>> Sorry that I even asked about that.  What next?
> 
> Sorry, I cannot reproduce the problem with the latest linux-next and commit
> 559ad0ff1368baea14dbc3207d55b02bd69bda4b from cryptodev-2.6 applied. Please
> ensure you've applied that patch.

OK, thanks for trying.

Yes, I have applied that patch.

-- 
~Randy
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