linux-kernel - Re: [PATCH 6/9] kasan/um: call kasan_init_generic in kasan

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Message-ID: <dd87fa28e596126536d79281e87e2e0f52d9dfd4.camel@sipsolutions.net>
Date: Wed, 25 Jun 2025 14:20:38 +0200
From: Johannes Berg <johannes@...solutions.net>
To: Sabyrzhan Tasbolatov <snovitoll@...il.com>, ryabinin.a.a@...il.com, 
	glider@...gle.com, andreyknvl@...il.com, dvyukov@...gle.com, 
	vincenzo.frascino@....com, catalin.marinas@....com, will@...nel.org, 
	chenhuacai@...nel.org, kernel@...0n.name, maddy@...ux.ibm.com,
 mpe@...erman.id.au, 	npiggin@...il.com, christophe.leroy@...roup.eu,
 hca@...ux.ibm.com, 	gor@...ux.ibm.com, agordeev@...ux.ibm.com,
 borntraeger@...ux.ibm.com, 	svens@...ux.ibm.com, richard@....at,
 anton.ivanov@...bridgegreys.com, 	dave.hansen@...ux.intel.com,
 luto@...nel.org, peterz@...radead.org, 	tglx@...utronix.de,
 mingo@...hat.com, bp@...en8.de, x86@...nel.org, hpa@...or.com, 
	chris@...kel.net, jcmvbkbc@...il.com, akpm@...ux-foundation.org
Cc: guoweikang.kernel@...il.com, geert@...ux-m68k.org, rppt@...nel.org, 
	tiwei.btw@...group.com, richard.weiyang@...il.com, benjamin.berg@...el.com,
 	kevin.brodsky@....com, kasan-dev@...glegroups.com, 
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
	loongarch@...ts.linux.dev, linuxppc-dev@...ts.ozlabs.org, 
	linux-s390@...r.kernel.org, linux-um@...ts.infradead.org, linux-mm@...ck.org
Subject: Re: [PATCH 6/9] kasan/um: call kasan_init_generic in kasan_init

On Wed, 2025-06-25 at 14:52 +0500, Sabyrzhan Tasbolatov wrote:
> Call kasan_init_generic() which enables the static flag
> to mark generic KASAN initialized, otherwise it's an inline stub.
> 
> Delete the key `kasan_um_is_ready` in favor of the global static flag in
> linux/kasan-enabled.h which is enabled with kasan_init_generic().
> 
> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218315
> Signed-off-by: Sabyrzhan Tasbolatov <snovitoll@...il.com>

Looks fine, I guess. You can test/build it without qemu - on x86 - by
using 'make ARCH=um' or so.

I'm assuming it'll go through some kasan tree since there are
dependencies:

Acked-by: Johannes Berg <johannes@...solutions.net>

johannes