kasan: introduce kasan_complete_mode_report_info

[linux-2.6-microblaze.git] / mm / kasan / report.c

diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index ec018f8..39e8e5a 100644 (file)
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -185,8 +185,7 @@ static void print_error_description(struct kasan_report_info *info)
                return;
        }
 
-       pr_err("BUG: KASAN: %s in %pS\n",
-               kasan_get_bug_type(info), (void *)info->ip);
+       pr_err("BUG: KASAN: %s in %pS\n", info->bug_type, (void *)info->ip);
        if (info->access_size)
                pr_err("%s of size %zu at addr %px by task %s/%d\n",
                        info->is_write ? "Write" : "Read", info->access_size,
@@ -242,31 +241,25 @@ static void describe_object_addr(const void *addr, struct kmem_cache *cache,
                (void *)(object_addr + cache->object_size));
 }
 
-static void describe_object_stacks(u8 tag, struct kasan_report_info *info)
+static void describe_object_stacks(struct kasan_report_info *info)
 {
-       struct kasan_track *alloc_track;
-       struct kasan_track *free_track;
-
-       alloc_track = kasan_get_alloc_track(info->cache, info->object);
-       if (alloc_track) {
-               print_track(alloc_track, "Allocated");
+       if (info->alloc_track.stack) {
+               print_track(&info->alloc_track, "Allocated");
                pr_err("\n");
        }
 
-       free_track = kasan_get_free_track(info->cache, info->object, tag);
-       if (free_track) {
-               print_track(free_track, "Freed");
+       if (info->free_track.stack) {
+               print_track(&info->free_track, "Freed");
                pr_err("\n");
        }
 
        kasan_print_aux_stacks(info->cache, info->object);
 }
 
-static void describe_object(const void *addr, u8 tag,
-                           struct kasan_report_info *info)
+static void describe_object(const void *addr, struct kasan_report_info *info)
 {
        if (kasan_stack_collection_enabled())
-               describe_object_stacks(tag, info);
+               describe_object_stacks(info);
        describe_object_addr(addr, info->cache, info->object);
 }
 
@@ -295,7 +288,7 @@ static void print_address_description(void *addr, u8 tag,
        pr_err("\n");
 
        if (info->cache && info->object) {
-               describe_object(addr, tag, info);
+               describe_object(addr, info);
                pr_err("\n");
        }
 
@@ -426,6 +419,9 @@ static void complete_report_info(struct kasan_report_info *info)
                info->object = nearest_obj(info->cache, slab, addr);
        } else
                info->cache = info->object = NULL;
+
+       /* Fill in mode-specific report info fields. */
+       kasan_complete_mode_report_info(info);
 }
 
 void kasan_report_invalid_free(void *ptr, unsigned long ip, enum kasan_report_type type)
@@ -443,6 +439,7 @@ void kasan_report_invalid_free(void *ptr, unsigned long ip, enum kasan_report_ty
 
        start_report(&flags, true);
 
+       memset(&info, 0, sizeof(info));
        info.type = type;
        info.access_addr = ptr;
        info.access_size = 0;
@@ -477,6 +474,7 @@ bool kasan_report(unsigned long addr, size_t size, bool is_write,
 
        start_report(&irq_flags, true);
 
+       memset(&info, 0, sizeof(info));
        info.type = KASAN_REPORT_ACCESS;
        info.access_addr = ptr;
        info.access_size = size;