Subject: Re: [LKP] Re: [x86/mm/64] f154f29085:
 BUG:kernel_reboot-without-warning_in_boot_stage - clang KCOV?
To:     Borislav Petkov <bp@alien8.de>
CC:     Marco Elver <elver@google.com>, Carel Si <beibei.si@intel.com>,
        "Joerg Roedel" <jroedel@suse.de>,
        LKML <linux-kernel@vger.kernel.org>,
        "x86@kernel.org" <x86@kernel.org>,
        "lkp@lists.01.org" <lkp@lists.01.org>, lkp <lkp@intel.com>,
        "bfields@fieldses.org" <bfields@fieldses.org>,
        "llvm@lists.linux.dev" <llvm@lists.linux.dev>
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From:   Yin Fengwei <fengwei.yin@intel.com>
Message-ID: <0736f5f9-b38f-27e9-58da-b71a596c498e@intel.com>
Date:   Thu, 6 Jan 2022 14:56:51 +0800
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Hi Boris,

On 1/5/22 11:21 PM, Borislav Petkov wrote:
> ... yap, and because fixing it this way is easy, I've already queued the
> __no_profile solution:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?h=x86/mm&id=b64dfcde1ca9cb82e38e573753f0c0db8fb841c2
This fixing is good to me.

Just a little concern: if people need to add function in the future,
if he/she is not using clang-14, it's possible that he/she misses the
__no_profile and triggers this kind of issue again.

It may not be a big problem (we will capture it in our test. :)). Thanks.


Regards
Yin, Fengwei

> 
> Thanks.