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authorAndrey Konovalov <andreyknvl@google.com>2022-09-05 23:05:35 +0200
committerAndrew Morton <akpm@linux-foundation.org>2022-10-03 14:02:59 -0700
commitb89933e9a54d3e7c4da081bc0b986341b62cdab6 (patch)
tree6615e5630548e795b102849e294695982d3f5fff /mm/kasan
parentkasan: pass tagged pointers to kasan_save_alloc/free_info (diff)
downloadlinux-dev-b89933e9a54d3e7c4da081bc0b986341b62cdab6.tar.xz
linux-dev-b89933e9a54d3e7c4da081bc0b986341b62cdab6.zip
kasan: move kasan_get_alloc/free_track definitions
Move the definitions of kasan_get_alloc/free_track() to report_*.c, as they belong with other the reporting code. Link: https://lkml.kernel.org/r/0cb15423956889b3905a0174b58782633bbbd72e.1662411799.git.andreyknvl@google.com Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Reviewed-by: Marco Elver <elver@google.com> Cc: Alexander Potapenko <glider@google.com> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Evgenii Stepanov <eugenis@google.com> Cc: Peter Collingbourne <pcc@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/kasan')
-rw-r--r--mm/kasan/generic.c21
-rw-r--r--mm/kasan/report_generic.c21
-rw-r--r--mm/kasan/report_tags.c12
-rw-r--r--mm/kasan/tags.c12
4 files changed, 33 insertions, 33 deletions
diff --git a/mm/kasan/generic.c b/mm/kasan/generic.c
index aff39af3c532..d8b5590f9484 100644
--- a/mm/kasan/generic.c
+++ b/mm/kasan/generic.c
@@ -512,24 +512,3 @@ void kasan_save_free_info(struct kmem_cache *cache, void *object)
/* The object was freed and has free track set. */
*(u8 *)kasan_mem_to_shadow(object) = KASAN_SLAB_FREETRACK;
}
-
-struct kasan_track *kasan_get_alloc_track(struct kmem_cache *cache,
- void *object)
-{
- struct kasan_alloc_meta *alloc_meta;
-
- alloc_meta = kasan_get_alloc_meta(cache, object);
- if (!alloc_meta)
- return NULL;
-
- return &alloc_meta->alloc_track;
-}
-
-struct kasan_track *kasan_get_free_track(struct kmem_cache *cache,
- void *object, u8 tag)
-{
- if (*(u8 *)kasan_mem_to_shadow(object) != KASAN_SLAB_FREETRACK)
- return NULL;
- /* Free meta must be present with KASAN_SLAB_FREETRACK. */
- return &kasan_get_free_meta(cache, object)->free_track;
-}
diff --git a/mm/kasan/report_generic.c b/mm/kasan/report_generic.c
index 348dc207d462..74d21786ef09 100644
--- a/mm/kasan/report_generic.c
+++ b/mm/kasan/report_generic.c
@@ -127,6 +127,27 @@ const char *kasan_get_bug_type(struct kasan_report_info *info)
return get_wild_bug_type(info);
}
+struct kasan_track *kasan_get_alloc_track(struct kmem_cache *cache,
+ void *object)
+{
+ struct kasan_alloc_meta *alloc_meta;
+
+ alloc_meta = kasan_get_alloc_meta(cache, object);
+ if (!alloc_meta)
+ return NULL;
+
+ return &alloc_meta->alloc_track;
+}
+
+struct kasan_track *kasan_get_free_track(struct kmem_cache *cache,
+ void *object, u8 tag)
+{
+ if (*(u8 *)kasan_mem_to_shadow(object) != KASAN_SLAB_FREETRACK)
+ return NULL;
+ /* Free meta must be present with KASAN_SLAB_FREETRACK. */
+ return &kasan_get_free_meta(cache, object)->free_track;
+}
+
void kasan_metadata_fetch_row(char *buffer, void *row)
{
memcpy(buffer, kasan_mem_to_shadow(row), META_BYTES_PER_ROW);
diff --git a/mm/kasan/report_tags.c b/mm/kasan/report_tags.c
index 35cf3cae4aa4..79b6497d8a81 100644
--- a/mm/kasan/report_tags.c
+++ b/mm/kasan/report_tags.c
@@ -21,3 +21,15 @@ const char *kasan_get_bug_type(struct kasan_report_info *info)
return "invalid-access";
}
+
+struct kasan_track *kasan_get_alloc_track(struct kmem_cache *cache,
+ void *object)
+{
+ return NULL;
+}
+
+struct kasan_track *kasan_get_free_track(struct kmem_cache *cache,
+ void *object, u8 tag)
+{
+ return NULL;
+}
diff --git a/mm/kasan/tags.c b/mm/kasan/tags.c
index fd11d10a4ffc..39a0481e5228 100644
--- a/mm/kasan/tags.c
+++ b/mm/kasan/tags.c
@@ -24,15 +24,3 @@ void kasan_save_alloc_info(struct kmem_cache *cache, void *object, gfp_t flags)
void kasan_save_free_info(struct kmem_cache *cache, void *object)
{
}
-
-struct kasan_track *kasan_get_alloc_track(struct kmem_cache *cache,
- void *object)
-{
- return NULL;
-}
-
-struct kasan_track *kasan_get_free_track(struct kmem_cache *cache,
- void *object, u8 tag)
-{
- return NULL;
-}