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Date: Fri, 15 Aug 2025 18:46:09 +0100
From: Catalin Marinas <catalin.marinas@arm.com>
To: Yeoreum Yun <yeoreum.yun@arm.com>
Cc: ryabinin.a.a@gmail.com, glider@google.com, andreyknvl@gmail.com,
	dvyukov@google.com, vincenzo.frascino@arm.com, corbet@lwn.net,
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Subject: Re: [PATCH v2 1/2] kasan/hw-tags: introduce kasan.store_only option
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References: <20250813175335.3980268-1-yeoreum.yun@arm.com>
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 <aJ8WTyRJVznC9v4K@arm.com>
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On Fri, Aug 15, 2025 at 03:47:17PM +0100, Yeoreum Yun wrote:
> > If we do something like mte_enable_kernel_asymm(), that one doesn't
> > return any error, just fall back to the default mode.
> 
> But, in case of mte_enable_kernel_asymm() need return to
> change kasan_flag_write_only = false when it doesn't support which
> used in KASAN Kunit test.
> 
> If we don't return anything, when user set the write_only but HW doesn't
> support it, KUNIT test get failure since kasan_write_only_enabled()
> return true thou HW doesn't support it.

Ah, ok, if we need this for the kunit test. I haven't checked the last
patch.

-- 
Catalin