linux-kernel - [PATCH 24/32] kasan: move kasan_addr_to

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Message-Id: <5ea6f55fb645405bb52cb15b8d30544ba3f189b0.1655150842.git.andreyknvl@google.com>
Date:   Mon, 13 Jun 2022 22:14:15 +0200
From:   andrey.konovalov@...ux.dev
To:     Marco Elver <elver@...gle.com>,
        Alexander Potapenko <glider@...gle.com>
Cc:     Andrey Konovalov <andreyknvl@...il.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Andrey Ryabinin <ryabinin.a.a@...il.com>,
        kasan-dev@...glegroups.com, Peter Collingbourne <pcc@...gle.com>,
        Evgenii Stepanov <eugenis@...gle.com>,
        Florian Mayer <fmayer@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org,
        Andrey Konovalov <andreyknvl@...gle.com>
Subject: [PATCH 24/32] kasan: move kasan_addr_to_slab to common.c

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

Move the definition of kasan_addr_to_slab() to the common KASAN code,
as this function is not only used by the reporting code.

Signed-off-by: Andrey Konovalov <andreyknvl@...gle.com>
---
 mm/kasan/common.c | 7 +++++++
 mm/kasan/report.c | 7 -------
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/mm/kasan/common.c b/mm/kasan/common.c
index 519fd0b3040b..5d5b4cfae503 100644
--- a/mm/kasan/common.c
+++ b/mm/kasan/common.c
@@ -30,6 +30,13 @@
 #include "kasan.h"
 #include "../slab.h"
 
+struct slab *kasan_addr_to_slab(const void *addr)
+{
+	if ((addr >= (void *)PAGE_OFFSET) && (addr < high_memory))
+		return virt_to_slab(addr);
+	return NULL;
+}
+
 depot_stack_handle_t kasan_save_stack(gfp_t flags, bool can_alloc)
 {
 	unsigned long entries[KASAN_STACK_DEPTH];
diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index 1dd6fc8a678f..ed8234516bab 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -207,13 +207,6 @@ struct page *kasan_addr_to_page(const void *addr)
 	return NULL;
 }
 
-struct slab *kasan_addr_to_slab(const void *addr)
-{
-	if ((addr >= (void *)PAGE_OFFSET) && (addr < high_memory))
-		return virt_to_slab(addr);
-	return NULL;
-}
-
 static void describe_object_addr(struct kmem_cache *cache, void *object,
 				const void *addr)
 {
-- 
2.25.1