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| author | Andrey Konovalov <andreyknvl@google.com> | 2022-03-25 04:12:31 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-25 05:06:49 +0300 |
| commit | 3784c299eafc6dd1ca5a23f4020f18ca565e07af (patch) | |
| tree | b73ad0674fbf7d2e19214b31f1bdfe493a31415b /mm | |
| parent | 476b1dc2bc34febc620b8a6cd459f0b3d9950c34 (diff) | |
| download | linux-3784c299eafc6dd1ca5a23f4020f18ca565e07af.tar.xz | |
kasan: simplify kasan_update_kunit_status() and call sites
- Rename kasan_update_kunit_status() to update_kunit_status() (the
function is static).
- Move the IS_ENABLED(CONFIG_KUNIT) to the function's definition
instead of duplicating it at call sites.
- Obtain and check current->kunit_test within the function.
Link: https://lkml.kernel.org/r/dac26d811ae31856c3d7666de0b108a3735d962d.1646237226.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Marco Elver <elver@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/kasan/report.c | 30 |
1 files changed, 14 insertions, 16 deletions
diff --git a/mm/kasan/report.c b/mm/kasan/report.c index 2d892ec050be..59db81211b8a 100644 --- a/mm/kasan/report.c +++ b/mm/kasan/report.c @@ -357,24 +357,31 @@ static bool report_enabled(void) } #if IS_ENABLED(CONFIG_KUNIT) -static void kasan_update_kunit_status(struct kunit *cur_test, bool sync) +static void update_kunit_status(bool sync) { + struct kunit *test; struct kunit_resource *resource; struct kunit_kasan_status *status; - resource = kunit_find_named_resource(cur_test, "kasan_status"); + test = current->kunit_test; + if (!test) + return; + resource = kunit_find_named_resource(test, "kasan_status"); if (!resource) { - kunit_set_failure(cur_test); + kunit_set_failure(test); return; } status = (struct kunit_kasan_status *)resource->data; WRITE_ONCE(status->report_found, true); WRITE_ONCE(status->sync_fault, sync); + kunit_put_resource(resource); } -#endif /* IS_ENABLED(CONFIG_KUNIT) */ +#else +static void update_kunit_status(bool sync) { } +#endif void kasan_report_invalid_free(void *object, unsigned long ip) { @@ -383,10 +390,7 @@ void kasan_report_invalid_free(void *object, unsigned long ip) object = kasan_reset_tag(object); -#if IS_ENABLED(CONFIG_KUNIT) - if (current->kunit_test) - kasan_update_kunit_status(current->kunit_test, true); -#endif /* IS_ENABLED(CONFIG_KUNIT) */ + update_kunit_status(true); start_report(&flags); pr_err("BUG: KASAN: double-free or invalid-free in %pS\n", (void *)ip); @@ -402,10 +406,7 @@ void kasan_report_async(void) { unsigned long flags; -#if IS_ENABLED(CONFIG_KUNIT) - if (current->kunit_test) - kasan_update_kunit_status(current->kunit_test, false); -#endif /* IS_ENABLED(CONFIG_KUNIT) */ + update_kunit_status(false); start_report(&flags); pr_err("BUG: KASAN: invalid-access\n"); @@ -424,10 +425,7 @@ static void __kasan_report(unsigned long addr, size_t size, bool is_write, void *untagged_addr; unsigned long flags; -#if IS_ENABLED(CONFIG_KUNIT) - if (current->kunit_test) - kasan_update_kunit_status(current->kunit_test, true); -#endif /* IS_ENABLED(CONFIG_KUNIT) */ + update_kunit_status(true); disable_trace_on_warning(); |