+ kasan-move-kasan_get_alloc-free_track-definitions.patch added to mm-unstable branch

+ kasan-move-kasan_get_alloc-free_track-definitions.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: kasan: move kasan_get_alloc/free_track definitions
has been added to the -mm mm-unstable branch.  Its filename is
     kasan-move-kasan_get_alloc-free_track-definitions.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/kasan-move-kasan_get_alloc-free_track-definitions.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Andrey Konovalov <andreyknvl@google.com>
Subject: kasan: move kasan_get_alloc/free_track definitions
Date: Mon, 5 Sep 2022 23:05:35 +0200

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>
---

 mm/kasan/generic.c        |   21 ---------------------
 mm/kasan/report_generic.c |   21 +++++++++++++++++++++
 mm/kasan/report_tags.c    |   12 ++++++++++++
 mm/kasan/tags.c           |   12 ------------
 4 files changed, 33 insertions(+), 33 deletions(-)

--- a/mm/kasan/generic.c~kasan-move-kasan_get_alloc-free_track-definitions
+++ a/mm/kasan/generic.c
@@ -512,24 +512,3 @@ void kasan_save_free_info(struct kmem_ca
 	/* 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;
-}
--- a/mm/kasan/report_generic.c~kasan-move-kasan_get_alloc-free_track-definitions
+++ a/mm/kasan/report_generic.c
@@ -127,6 +127,27 @@ const char *kasan_get_bug_type(struct ka
 	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);
--- a/mm/kasan/report_tags.c~kasan-move-kasan_get_alloc-free_track-definitions
+++ a/mm/kasan/report_tags.c
@@ -21,3 +21,15 @@ const char *kasan_get_bug_type(struct ka
 
 	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;
+}
--- a/mm/kasan/tags.c~kasan-move-kasan_get_alloc-free_track-definitions
+++ a/mm/kasan/tags.c
@@ -24,15 +24,3 @@ void kasan_save_alloc_info(struct kmem_c
 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;
-}
_

Patches currently in -mm which might be from andreyknvl@google.com are

kasan-check-kasan_no_free_meta-in-__kasan_metadata_size.patch
kasan-rename-kasan_set__info-to-kasan_save__info.patch
kasan-move-is_kmalloc-check-out-of-save_alloc_info.patch
kasan-split-save_alloc_info-implementations.patch
kasan-drop-config_kasan_tags_identify.patch
kasan-introduce-kasan_print_aux_stacks.patch
kasan-introduce-kasan_get_alloc_track.patch
kasan-introduce-kasan_init_object_meta.patch
kasan-clear-metadata-functions-for-tag-based-modes.patch
kasan-move-kasan_get__meta-to-genericc.patch
kasan-introduce-kasan_requires_meta.patch
kasan-introduce-kasan_init_cache_meta.patch
kasan-drop-config_kasan_generic-check-from-kasan_init_cache_meta.patch
kasan-only-define-kasan_metadata_size-for-generic-mode.patch
kasan-only-define-kasan_never_merge-for-generic-mode.patch
kasan-only-define-metadata-offsets-for-generic-mode.patch
kasan-only-define-metadata-structs-for-generic-mode.patch
kasan-only-define-kasan_cache_create-for-generic-mode.patch
kasan-pass-tagged-pointers-to-kasan_save_alloc-free_info.patch
kasan-move-kasan_get_alloc-free_track-definitions.patch
kasan-cosmetic-changes-in-reportc.patch
kasan-use-virt_addr_valid-in-kasan_addr_to_page-slab.patch
kasan-use-kasan_addr_to_slab-in-print_address_description.patch
kasan-make-kasan_addr_to_page-static.patch
kasan-simplify-print_report.patch
kasan-introduce-complete_report_info.patch
kasan-fill-in-cache-and-object-in-complete_report_info.patch
kasan-rework-function-arguments-in-reportc.patch
kasan-introduce-kasan_complete_mode_report_info.patch
kasan-implement-stack-ring-for-tag-based-modes.patch
kasan-support-kasanstacktrace-for-sw_tags.patch
kasan-dynamically-allocate-stack-ring-entries.patch
kasan-better-identify-bug-types-for-tag-based-modes.patch
kasan-add-another-use-after-free-test.patch
kasan-move-tests-to-mm-kasan.patch