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From: Borislav Petkov <bp@alien8.de>
To: "Luck, Tony" <tony.luck@intel.com>
Cc: Yazen Ghannam <Yazen.Ghannam@amd.com>, X86 ML <x86@kernel.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/4] x86/mce: Get rid of machine_check_vector
Date: Mon, 20 Sep 2021 10:12:51 +0200	[thread overview]
Message-ID: <YUhCg/dQLEeaYM+T@zn.tnic> (raw)
In-Reply-To: <YUgUpXHciLMn4X20@agluck-desk2.amr.corp.intel.com>

On Sun, Sep 19, 2021 at 09:57:09PM -0700, Luck, Tony wrote:
> Does this __reserved field do anything useful? It seems to
> just be an annoyance that must be updated each time a new
> bit is added. Surely the compiler will see that these bitfields
> are in a "u64" and do the math and skip to the right boundary
> without this.

It is there to tell you how many bits you have left so that you don't
have to count each time. And updating it each time is simply Ctrl-x in
vim.

:-)

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

  parent reply	other threads:[~2021-09-20  8:13 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-17 10:53 [PATCH 0/4] x86/mce: Remove indirect calls Borislav Petkov
2021-09-17 10:53 ` [PATCH 1/4] x86/mce: Get rid of the mce_severity function pointer Borislav Petkov
2021-09-17 10:53 ` [PATCH 2/4] x86/mce: Get rid of machine_check_vector Borislav Petkov
2021-09-20  4:57   ` Luck, Tony
2021-09-20  7:42     ` Rasmus Villemoes
2021-09-20  8:15       ` Borislav Petkov
2021-09-20  8:12     ` Borislav Petkov [this message]
2021-09-20 16:04       ` Luck, Tony
2021-09-20 16:32         ` Borislav Petkov
2021-09-17 10:53 ` [PATCH 3/4] x86/mce: Get rid of msr_ops Borislav Petkov
2021-09-20  4:47   ` Luck, Tony
2021-09-20  8:32     ` Borislav Petkov
2021-09-22 12:16       ` Borislav Petkov
2021-09-22 13:23         ` Luck, Tony
2021-09-22 13:55           ` Borislav Petkov
2021-09-22 15:22             ` Luck, Tony
2021-09-22 15:57               ` Borislav Petkov
2021-09-17 10:53 ` [PATCH 4/4] x86/mce: Get rid of the ->quirk_no_way_out() indirect call Borislav Petkov
2021-09-20  5:06   ` Luck, Tony
2021-09-20  8:34     ` Borislav Petkov
2021-09-23 14:51   ` Yazen Ghannam
2021-09-23 15:11     ` Borislav Petkov
2021-09-24 20:04       ` Yazen Ghannam

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