Re: [PATCH 10/12] arm64: kasan: simplify and inline MTE functions
From: Vincenzo Frascino <vincenzo.frascino@arm.com>
Date: 2021-02-04 12:36:11
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linux-mm, lkml
Hi Andrew, On 2/1/21 10:44 PM, Andrew Morton wrote:
On Mon, 1 Feb 2021 20:43:34 +0100 Andrey Konovalov [off-list ref] wrote:quoted
This change provides a simpler implementation of mte_get_mem_tag(), mte_get_random_tag(), and mte_set_mem_tag_range(). Simplifications include removing system_supports_mte() checks as these functions are onlye called from KASAN runtime that had already checked system_supports_mte(). Besides that, size and address alignment checks are removed from mte_set_mem_tag_range(), as KASAN now does those. This change also moves these functions into the asm/mte-kasan.h header and implements mte_set_mem_tag_range() via inline assembly to avoid unnecessary functions calls. Co-developed-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Signed-off-by: Andrey Konovalov <redacted>Co-developed-by requires a Signed-off-by: as well. Vincenzo, please send us one?
I added my Signed-off-by to the patch. -- Regards, Vincenzo _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel