[PATCH v3] selftests/damon: suppress compiler warnings for huge_count_read_write

From: Yuanchu Xie
Date: Wed May 04 2022 - 14:38:08 EST


The test case added in commit db7a347b26fe ("mm/damon/dbgfs:
use '__GFP_NOWARN' for user-specified size buffer allocation")
intentionally writes and reads with a large count to cause
allocation failure and check for kernel warnings. We suppress
the compiler warnings for these calls as they work as intended.

Signed-off-by: Yuanchu Xie <yuanchu@xxxxxxxxxx>
---
tools/testing/selftests/damon/huge_count_read_write.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/damon/huge_count_read_write.c b/tools/testing/selftests/damon/huge_count_read_write.c
index ad7a6b4cf338..91bd80c75cd9 100644
--- a/tools/testing/selftests/damon/huge_count_read_write.c
+++ b/tools/testing/selftests/damon/huge_count_read_write.c
@@ -2,6 +2,8 @@
/*
* Author: SeongJae Park <sj@xxxxxxxxxx>
*/
+#pragma GCC diagnostic ignored "-Wstringop-overflow"
+#pragma GCC diagnostic ignored "-Wstringop-overread"

#include <fcntl.h>
#include <stdlib.h>
--
2.36.0.464.gb9c8b46e94-goog