linux-kernel - [PATCH v2 2/5] kasan, arm64: rename tagging-related routines

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Message-Id: <75c4000c862996060a20f1f66d6c9adcf9f23aca.1680114854.git.andreyknvl@google.com>
Date:   Wed, 29 Mar 2023 20:37:45 +0200
From:   andrey.konovalov@...ux.dev
To:     Marco Elver <elver@...gle.com>,
        Catalin Marinas <catalin.marinas@....com>
Cc:     Andrey Konovalov <andreyknvl@...il.com>,
        Alexander Potapenko <glider@...gle.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Andrey Ryabinin <ryabinin.a.a@...il.com>,
        kasan-dev@...glegroups.com,
        Vincenzo Frascino <vincenzo.frascino@....com>,
        Will Deacon <will@...nel.org>,
        linux-arm-kernel@...ts.infradead.org,
        Peter Collingbourne <pcc@...gle.com>,
        Evgenii Stepanov <eugenis@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
        Weizhao Ouyang <ouyangweizhao@...u.com>,
        linux-kernel@...r.kernel.org,
        Andrey Konovalov <andreyknvl@...gle.com>
Subject: [PATCH v2 2/5] kasan, arm64: rename tagging-related routines

From: Andrey Konovalov <andreyknvl@...gle.com>

Rename arch_enable_tagging_sync/async/asymm to
arch_enable_tag_checks_sync/async/asymm, as the new name better reflects
their function.

Also rename kasan_enable_tagging to kasan_enable_hw_tags for the same
reason.

Signed-off-by: Andrey Konovalov <andreyknvl@...gle.com>
---
 arch/arm64/include/asm/memory.h |  6 +++---
 mm/kasan/hw_tags.c              | 12 ++++++------
 mm/kasan/kasan.h                | 10 +++++-----
 mm/kasan/kasan_test.c           |  2 +-
 4 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index 78e5163836a0..faf42bff9a60 100644
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -261,9 +261,9 @@ static inline const void *__tag_set(const void *addr, u8 tag)
 }
 
 #ifdef CONFIG_KASAN_HW_TAGS
-#define arch_enable_tagging_sync()		mte_enable_kernel_sync()
-#define arch_enable_tagging_async()		mte_enable_kernel_async()
-#define arch_enable_tagging_asymm()		mte_enable_kernel_asymm()
+#define arch_enable_tag_checks_sync()		mte_enable_kernel_sync()
+#define arch_enable_tag_checks_async()		mte_enable_kernel_async()
+#define arch_enable_tag_checks_asymm()		mte_enable_kernel_asymm()
 #define arch_force_async_tag_fault()		mte_check_tfsr_exit()
 #define arch_get_random_tag()			mte_get_random_tag()
 #define arch_get_mem_tag(addr)			mte_get_mem_tag(addr)
diff --git a/mm/kasan/hw_tags.c b/mm/kasan/hw_tags.c
index d1bcb0205327..b092e37b69a7 100644
--- a/mm/kasan/hw_tags.c
+++ b/mm/kasan/hw_tags.c
@@ -205,7 +205,7 @@ void kasan_init_hw_tags_cpu(void)
 	 * Enable async or asymm modes only when explicitly requested
 	 * through the command line.
 	 */
-	kasan_enable_tagging();
+	kasan_enable_hw_tags();
 }
 
 /* kasan_init_hw_tags() is called once on boot CPU. */
@@ -373,19 +373,19 @@ void __kasan_poison_vmalloc(const void *start, unsigned long size)
 
 #endif
 
-void kasan_enable_tagging(void)
+void kasan_enable_hw_tags(void)
 {
 	if (kasan_arg_mode == KASAN_ARG_MODE_ASYNC)
-		hw_enable_tagging_async();
+		hw_enable_tag_checks_async();
 	else if (kasan_arg_mode == KASAN_ARG_MODE_ASYMM)
-		hw_enable_tagging_asymm();
+		hw_enable_tag_checks_asymm();
 	else
-		hw_enable_tagging_sync();
+		hw_enable_tag_checks_sync();
 }
 
 #if IS_ENABLED(CONFIG_KASAN_KUNIT_TEST)
 
-EXPORT_SYMBOL_GPL(kasan_enable_tagging);
+EXPORT_SYMBOL_GPL(kasan_enable_hw_tags);
 
 void kasan_force_async_fault(void)
 {
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index b1895526d02f..a1613f5d7608 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -395,20 +395,20 @@ static inline const void *arch_kasan_set_tag(const void *addr, u8 tag)
 
 #ifdef CONFIG_KASAN_HW_TAGS
 
-#define hw_enable_tagging_sync()		arch_enable_tagging_sync()
-#define hw_enable_tagging_async()		arch_enable_tagging_async()
-#define hw_enable_tagging_asymm()		arch_enable_tagging_asymm()
+#define hw_enable_tag_checks_sync()		arch_enable_tag_checks_sync()
+#define hw_enable_tag_checks_async()		arch_enable_tag_checks_async()
+#define hw_enable_tag_checks_asymm()		arch_enable_tag_checks_asymm()
 #define hw_force_async_tag_fault()		arch_force_async_tag_fault()
 #define hw_get_random_tag()			arch_get_random_tag()
 #define hw_get_mem_tag(addr)			arch_get_mem_tag(addr)
 #define hw_set_mem_tag_range(addr, size, tag, init) \
 			arch_set_mem_tag_range((addr), (size), (tag), (init))
 
-void kasan_enable_tagging(void);
+void kasan_enable_hw_tags(void);
 
 #else /* CONFIG_KASAN_HW_TAGS */
 
-static inline void kasan_enable_tagging(void) { }
+static inline void kasan_enable_hw_tags(void) { }
 
 #endif /* CONFIG_KASAN_HW_TAGS */
 
diff --git a/mm/kasan/kasan_test.c b/mm/kasan/kasan_test.c
index 627eaf1ee1db..a375776f9896 100644
--- a/mm/kasan/kasan_test.c
+++ b/mm/kasan/kasan_test.c
@@ -148,7 +148,7 @@ static void kasan_test_exit(struct kunit *test)
 	    kasan_sync_fault_possible()) {				\
 		if (READ_ONCE(test_status.report_found) &&		\
 		    !READ_ONCE(test_status.async_fault))		\
-			kasan_enable_tagging();				\
+			kasan_enable_hw_tags();				\
 		migrate_enable();					\
 	}								\
 	WRITE_ONCE(test_status.report_found, false);			\
-- 
2.25.1