From: Borislav Petkov <bp@alien8.de>
To: Joe Perches <joe@perches.com>
Cc: X86 ML <x86@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Andy Whitcroft <apw@canonical.com>,
LKML <linux-kernel@vger.kernel.org>,
Peter Zijlstra <peterz@infradead.org>
Subject: Re: [PATCH] checkpatch: Check for .byte-spelled insn opcodes documentation on x86
Date: Sat, 10 Oct 2020 18:11:12 +0200 [thread overview]
Message-ID: <20201010161112.GC24674@zn.tnic> (raw)
In-Reply-To: <4147e49c0b1251343181b5580d946c2273247927.camel@perches.com>
On Sat, Oct 10, 2020 at 08:27:20AM -0700, Joe Perches wrote:
> Then this could use:
>
> /"\s*\.byte\s+(?:0x[0-9a-fA-F]{1,2}\s*,\s*){2,4}/
Yes, this is getting close.
I've tweaked it a bit to:
'/\s*\.byte\s+(?:0x[0-9a-f]{1,2}[\s,]*){2,}/i'
which assumes at least 2 opcode bytes; upper limit can be more than 4.
It still has some false positives in crypto but I'd say that's good
enough. I'll play more with it later.
Thx.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
next prev parent reply other threads:[~2020-10-10 23:11 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-09 16:14 [PATCH] checkpatch: Check for .byte-spelled insn opcodes documentation on x86 Borislav Petkov
2020-10-09 18:01 ` Joe Perches
2020-10-10 10:54 ` Borislav Petkov
2020-10-10 10:55 ` [PATCH -v2] " Borislav Petkov
2020-10-10 15:27 ` [PATCH] " Joe Perches
2020-10-10 16:11 ` Borislav Petkov [this message]
2020-10-10 16:47 ` Joe Perches
2020-10-12 14:21 ` Borislav Petkov
2020-10-12 14:23 ` [PATCH -v3] " Borislav Petkov
2020-10-12 15:04 ` Joe Perches
2020-10-12 15:02 ` [PATCH] " Joe Perches
2020-10-12 17:09 ` [PATCH -v4] " Joe Perches
2020-10-12 17:15 ` Borislav Petkov
2020-10-12 17:17 ` Joe Perches
2020-10-12 17:31 ` Borislav Petkov
2020-10-12 17:40 ` Joe Perches
2020-10-12 17:55 ` Borislav Petkov
2020-10-12 18:03 ` Joe Perches
2020-10-10 15:38 ` [PATCH] " Joe Perches
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