linux-kernel - Re: [PATCH v4 11/12] arch/um: don't initialize kasan if it's disabled

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Message-ID: <aS7l6gfOWvVpFWy9@MiWiFi-R3L-srv>
Date: Tue, 2 Dec 2025 21:13:14 +0800
From: Baoquan He <bhe@...hat.com>
To: Johannes Berg <johannes@...solutions.net>
Cc: linux-mm@...ck.org, ryabinin.a.a@...il.com, andreyknvl@...il.com,
	glider@...gle.com, dvyukov@...gle.com, vincenzo.frascino@....com,
	akpm@...ux-foundation.org, kasan-dev@...glegroups.com,
	linux-kernel@...r.kernel.org, kexec@...ts.infradead.org,
	elver@...gle.com, sj@...nel.org, lorenzo.stoakes@...cle.com,
	snovitoll@...il.com, christophe.leroy@...roup.eu,
	linux-um@...ts.infradead.org
Subject: Re: [PATCH v4 11/12] arch/um: don't initialize kasan if it's disabled

On 12/01/25 at 11:56am, Johannes Berg wrote:
> On Fri, 2025-11-28 at 11:33 +0800, Baoquan He wrote:
> > And also do the kasan_arg_disabled chekcing before kasan_flag_enabled
>                                      ^^^^^^^^
> 
> typo

Thanks, will fix.

> 
> > enabling to make sure kernel parameter kasan=on|off has been parsed.
> 
> But I'm not sure how to understand that sentence.
> 
> And I have no idea what to do with this patch, with it being random CC
> of the middle of the series.

Sorry for the inconvenience. I am worried several rounds of posting
could bomb receivers's mail box, so only add arch's mailing list to 
CC in each arch's relevant patch. The whole patchset can be found at
below link. And the whole patchset are sent to linux-mm, lkml and kexec
mailing lists if subscribed any of them.

[PATCH v4 00/12] mm/kasan: make kasan=on|off work for all three modes
https://lore.kernel.org/all/20251128033320.1349620-1-bhe@redhat.com/T/#u

Thanks
Baoquan