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[61.230.42.225]) by smtp.gmail.com with ESMTPSA id m1sm6076572pgd.78.2021.06.11.21.52.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 11 Jun 2021 21:52:45 -0700 (PDT) From: Kuan-Ying Lee To: Andrey Ryabinin , Alexander Potapenko , Andrey Konovalov , Dmitry Vyukov , Andrew Morton Cc: kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Kuan-Ying Lee , Marco Elver Subject: [PATCH v2 1/3] kasan: rename CONFIG_KASAN_SW_TAGS_IDENTIFY to CONFIG_KASAN_TAGS_IDENTIFY Date: Sat, 12 Jun 2021 12:51:54 +0800 Message-Id: <20210612045156.44763-2-kylee0686026@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210612045156.44763-1-kylee0686026@gmail.com> References: <20210612045156.44763-1-kylee0686026@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch renames CONFIG_KASAN_SW_TAGS_IDENTIFY to CONFIG_KASAN_TAGS_IDENTIFY in order to be compatible with hardware tag-based mode. Signed-off-by: Kuan-Ying Lee Suggested-by: Marco Elver Cc: Andrey Ryabinin Cc: Alexander Potapenko Cc: Andrey Konovalov Cc: Dmitry Vyukov Cc: Andrew Morton --- lib/Kconfig.kasan | 2 +- mm/kasan/kasan.h | 4 ++-- mm/kasan/report_sw_tags.c | 2 +- mm/kasan/sw_tags.c | 4 ++-- 4 files changed, 6 insertions(+), 6 deletions(-) diff --git a/lib/Kconfig.kasan b/lib/Kconfig.kasan index cffc2ebbf185..6f5d48832139 100644 --- a/lib/Kconfig.kasan +++ b/lib/Kconfig.kasan @@ -155,7 +155,7 @@ config KASAN_STACK CONFIG_COMPILE_TEST. On gcc it is assumed to always be safe to use and enabled by default. -config KASAN_SW_TAGS_IDENTIFY +config KASAN_TAGS_IDENTIFY bool "Enable memory corruption identification" depends on KASAN_SW_TAGS help diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h index 8f450bc28045..b0fc9a1eb7e3 100644 --- a/mm/kasan/kasan.h +++ b/mm/kasan/kasan.h @@ -153,7 +153,7 @@ struct kasan_track { depot_stack_handle_t stack; }; -#ifdef CONFIG_KASAN_SW_TAGS_IDENTIFY +#ifdef CONFIG_KASAN_TAGS_IDENTIFY #define KASAN_NR_FREE_STACKS 5 #else #define KASAN_NR_FREE_STACKS 1 @@ -170,7 +170,7 @@ struct kasan_alloc_meta { #else struct kasan_track free_track[KASAN_NR_FREE_STACKS]; #endif -#ifdef CONFIG_KASAN_SW_TAGS_IDENTIFY +#ifdef CONFIG_KASAN_TAGS_IDENTIFY u8 free_pointer_tag[KASAN_NR_FREE_STACKS]; u8 free_track_idx; #endif diff --git a/mm/kasan/report_sw_tags.c b/mm/kasan/report_sw_tags.c index 3d20d3451d9e..821a14a19a92 100644 --- a/mm/kasan/report_sw_tags.c +++ b/mm/kasan/report_sw_tags.c @@ -31,7 +31,7 @@ const char *kasan_get_bug_type(struct kasan_access_info *info) { -#ifdef CONFIG_KASAN_SW_TAGS_IDENTIFY +#ifdef CONFIG_KASAN_TAGS_IDENTIFY struct kasan_alloc_meta *alloc_meta; struct kmem_cache *cache; struct page *page; diff --git a/mm/kasan/sw_tags.c b/mm/kasan/sw_tags.c index 9362938abbfa..dd05e6c801fa 100644 --- a/mm/kasan/sw_tags.c +++ b/mm/kasan/sw_tags.c @@ -177,7 +177,7 @@ void kasan_set_free_info(struct kmem_cache *cache, if (!alloc_meta) return; -#ifdef CONFIG_KASAN_SW_TAGS_IDENTIFY +#ifdef CONFIG_KASAN_TAGS_IDENTIFY idx = alloc_meta->free_track_idx; alloc_meta->free_pointer_tag[idx] = tag; alloc_meta->free_track_idx = (idx + 1) % KASAN_NR_FREE_STACKS; @@ -196,7 +196,7 @@ struct kasan_track *kasan_get_free_track(struct kmem_cache *cache, if (!alloc_meta) return NULL; -#ifdef CONFIG_KASAN_SW_TAGS_IDENTIFY +#ifdef CONFIG_KASAN_TAGS_IDENTIFY for (i = 0; i < KASAN_NR_FREE_STACKS; i++) { if (alloc_meta->free_pointer_tag[i] == tag) break; -- 2.25.1