[PATCH mm 16/22] kasan: move and simplify kasan_report_async

From: andrey . konovalov
Date: Wed Mar 02 2022 - 11:39:17 EST


From: Andrey Konovalov <andreyknvl@xxxxxxxxxx>

Place kasan_report_async() next to the other main reporting routines.
Also simplify printed information.

Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
---
mm/kasan/report.c | 28 ++++++++++++++--------------
1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index 73348f83b813..162fd2d6209e 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -392,20 +392,6 @@ static bool report_enabled(void)
return !test_and_set_bit(KASAN_BIT_REPORTED, &kasan_flags);
}

-#ifdef CONFIG_KASAN_HW_TAGS
-void kasan_report_async(void)
-{
- unsigned long flags;
-
- start_report(&flags, false);
- pr_err("BUG: KASAN: invalid-access\n");
- pr_err("Asynchronous mode enabled: no access details available\n");
- pr_err("\n");
- dump_stack_lvl(KERN_ERR);
- end_report(&flags, NULL);
-}
-#endif /* CONFIG_KASAN_HW_TAGS */
-
static void print_report(struct kasan_access_info *info)
{
void *tagged_addr = info->access_addr;
@@ -477,6 +463,20 @@ bool kasan_report(unsigned long addr, size_t size, bool is_write,
return ret;
}

+#ifdef CONFIG_KASAN_HW_TAGS
+void kasan_report_async(void)
+{
+ unsigned long flags;
+
+ start_report(&flags, false);
+ pr_err("BUG: KASAN: invalid-access\n");
+ pr_err("Asynchronous fault: no details available\n");
+ pr_err("\n");
+ dump_stack_lvl(KERN_ERR);
+ end_report(&flags, NULL);
+}
+#endif /* CONFIG_KASAN_HW_TAGS */
+
#ifdef CONFIG_KASAN_INLINE
/*
* With CONFIG_KASAN_INLINE, accesses to bogus pointers (outside the high
--
2.25.1