linux-kernel - [PATCH 0/4] mm/kasan: remove kasan_arch_is

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Message-ID: <20250812130933.71593-1-bhe@redhat.com>
Date: Tue, 12 Aug 2025 21:09:29 +0800
From: Baoquan He <bhe@...hat.com>
To: linux-mm@...ck.org
Cc: snovitoll@...il.com,
	ryabinin.a.a@...il.com,
	christophe.leroy@...roup.eu,
	hca@...ux.ibm.com,
	andreyknvl@...il.com,
	akpm@...ux-foundation.org,
	chenhuacai@...ngson.cn,
	davidgow@...gle.com,
	glider@...gle.com,
	dvyukov@...gle.com,
	alexghiti@...osinc.com,
	kasan-dev@...glegroups.com,
	loongarch@...ts.linux.dev,
	linuxppc-dev@...ts.ozlabs.org,
	linux-um@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	agordeev@...ux.ibm.com,
	Baoquan He <bhe@...hat.com>
Subject: [PATCH 0/4] mm/kasan: remove kasan_arch_is_ready()

These are made on top of below patchset in which all functional functions
will be skipped if kasan is disabled by checking kasan_enabled(). With
the changes, kasan_arch_is_ready() can be easily cleaned up to simplify
code.

[PATCH v2 00/12] mm/kasan: make kasan=on|off work for all three modes
https://lore.kernel.org/all/20250812124941.69508-1-bhe@redhat.com/T/#u

The 1st three patches are from Sabyrzhan Tasbolatov's patchset. After
clean up the kasan_arch_is_ready() definition in loongarch, power and UM, 
we can simply remove kasan_arch_is_ready() checking in mm/kasan since
all the checking has been covered by kasan_enabled().

[PATCH v6 0/2] kasan: unify kasan_enabled() and remove arch-specific implementations
https://lore.kernel.org/all/20250810125746.1105476-1-snovitoll@gmail.com/T/#u

Test:
======
I have tested the effect of this patchset on loongarch, power and UM.
Will try to find machine to do testing.

Baoquan He (1):
  mm/kasan: remove kasan_arch_is_ready()

Sabyrzhan Tasbolatov (3):
  arch/loongarch: remove kasan_arch_is_ready()
  arch/powerpc: remove kasan_arch_is_ready()
  arch/um: remove kasan_arch_is_ready()

 arch/loongarch/include/asm/kasan.h     |  7 -------
 arch/loongarch/mm/kasan_init.c         | 10 +++-------
 arch/powerpc/include/asm/kasan.h       | 13 -------------
 arch/powerpc/mm/kasan/init_book3s_64.c |  4 ----
 arch/um/include/asm/kasan.h            |  5 ++---
 arch/um/kernel/mem.c                   |  6 +++++-
 mm/kasan/common.c                      |  9 +++------
 mm/kasan/generic.c                     |  9 ---------
 mm/kasan/kasan.h                       |  6 ------
 mm/kasan/shadow.c                      | 18 ------------------
 10 files changed, 13 insertions(+), 74 deletions(-)

-- 
2.41.0