From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: Ard Biesheuvel <ardb@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org, arnd@arndb.de,
linus.walleij@linaro.org
Subject: Re: [PATCH 5/6] ARM: spectre-bhb: avoid cross-subsection jump using a numbered label
Date: Thu, 31 Mar 2022 15:07:09 +0100 [thread overview]
Message-ID: <YkW1jfjcPKzNwiYa@shell.armlinux.org.uk> (raw)
In-Reply-To: <20220328134714.205342-6-ardb@kernel.org>
On Mon, Mar 28, 2022 at 03:47:13PM +0200, Ard Biesheuvel wrote:
> In order to minimize potential confusion regarding numbered labels
> appearing in a different order in the assembler output due to the use of
> subsections, use a named local label to jump back into the vector
> handler code from the associated loop8 mitigation sequence.
Using \@ doesn't buy us much as \name is already unique. Maybe using
some kind of prefix would be better, e.g. .Lfoo_\name would be more
descriptive?
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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next prev parent reply other threads:[~2022-03-31 14:10 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-28 13:47 [PATCH 0/6] ARM: spectre-bhb fixes and tweaks Ard Biesheuvel
2022-03-28 13:47 ` [PATCH 1/6] ARM: spectre-bhb: enable for Cortex-A15 Ard Biesheuvel
2022-05-24 14:50 ` Jon Hunter
2022-05-24 14:50 ` Jon Hunter
2022-05-24 15:21 ` Ard Biesheuvel
2022-05-24 15:21 ` Ard Biesheuvel
2022-05-24 16:06 ` Jon Hunter
2022-05-24 16:06 ` Jon Hunter
2022-05-24 17:03 ` Russell King (Oracle)
2022-05-24 17:03 ` Russell King (Oracle)
2022-05-24 17:49 ` Jon Hunter
2022-05-24 17:49 ` Jon Hunter
2022-05-25 7:09 ` Ard Biesheuvel
2022-05-25 7:09 ` Ard Biesheuvel
2022-05-25 10:48 ` Jon Hunter
2022-05-25 10:48 ` Jon Hunter
2022-05-25 10:52 ` Ard Biesheuvel
2022-05-25 10:52 ` Ard Biesheuvel
2022-06-07 14:30 ` Jon Hunter
2022-06-07 14:30 ` Jon Hunter
2022-06-07 14:32 ` Ard Biesheuvel
2022-06-07 14:32 ` Ard Biesheuvel
2022-06-07 14:35 ` Jon Hunter
2022-06-07 14:35 ` Jon Hunter
2022-06-07 14:39 ` Ard Biesheuvel
2022-06-07 14:39 ` Ard Biesheuvel
2022-03-28 13:47 ` [PATCH 2/6] ARM: spectre-bhb: fix loop8 sequence for Thumb2 Ard Biesheuvel
2022-03-28 13:47 ` [PATCH 3/6] ARM: spectre-bhb: simplify BPIALL vector macro Ard Biesheuvel
2022-03-28 13:47 ` [PATCH 4/6] ARM: spectre-bhb: use local DSB and elide ISB in loop8 sequence Ard Biesheuvel
2022-03-28 13:47 ` [PATCH 5/6] ARM: spectre-bhb: avoid cross-subsection jump using a numbered label Ard Biesheuvel
2022-03-31 14:07 ` Russell King (Oracle) [this message]
2022-03-31 16:22 ` Ard Biesheuvel
2022-03-28 13:47 ` [PATCH 6/6] ARM: spectre-bhb: rely on linker to emit cross-section literal loads Ard Biesheuvel
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