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From: Jiri Slaby <jirislaby@kernel.org>
To: Borislav Petkov <bp@alien8.de>, Masahiro Yamada <masahiroy@kernel.org>
Cc: peterz@infradead.org, linux-kernel@vger.kernel.org,
	Yu-cheng Yu <yu-cheng.yu@intel.com>,
	Rick Edgecombe <rick.p.edgecombe@intel.com>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	Kees Cook <keescook@chromium.org>,
	Mike Rapoport <rppt@kernel.org>,
	Pengfei Xu <pengfei.xu@intel.com>,
	John Allen <john.allen@amd.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
	x86@kernel.org, linux-kbuild@vger.kernel.org
Subject: Re: [PATCH] x86: Let AS_WRUSS depend on X86_64
Date: Tue, 31 Oct 2023 14:59:39 +0100	[thread overview]
Message-ID: <80496187-8392-4c9e-ba05-89edea53e6e0@kernel.org> (raw)
In-Reply-To: <20231031133447.GBZUECd12o2sw7E4Re@fat_crate.local>

On 31. 10. 23, 14:34, Borislav Petkov wrote:
> On Tue, Oct 31, 2023 at 09:20:33PM +0900, Masahiro Yamada wrote:
>> Please note "depends on X86_64" cannot prevent gcc
>> from running here.
>>
>> $(as-instr,wrussq %rax$(comma)(%rbx)) is replaced with 'y'
>> while parsing the Kconfig files.
>>
> Then what is this fixing?
> > Jiri, what openSUSE kernel build issues were you referring to on IRC?

As I wrote, we have a config which maintainers feed through oldconfig 
when updating the kernel. This time we got WRUSS=y. It was stored in git 
and later passed to build the kernel. And we received a different config 
from the build (WRUSS=n).

We diff the two and error out if the built kernel differs from the 
passed configuration. Which is the case here.

hth,
-- 
js


  reply	other threads:[~2023-10-31 13:59 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-31 10:21 [PATCH] x86: Let AS_WRUSS depend on X86_64 Jiri Slaby (SUSE)
2023-10-31 11:25 ` Borislav Petkov
2023-10-31 12:20   ` Masahiro Yamada
2023-10-31 13:34     ` Borislav Petkov
2023-10-31 13:59       ` Jiri Slaby [this message]
2023-10-31 14:05         ` Borislav Petkov
2023-10-31 14:10           ` Jiri Slaby
2023-10-31 13:53 ` Dave Hansen
2023-10-31 14:04   ` Jiri Slaby

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