linux-kernel - [PATCH 5.15 229/846] selftests: clone3: clone3: add case CLONE3_ARGS_NO

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Message-Id: <20220124184108.822268012@linuxfoundation.org>
Date:   Mon, 24 Jan 2022 19:35:46 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Anders Roxell <anders.roxell@...aro.org>,
        Christian Brauner <christian.brauner@...ntu.com>,
        Shuah Khan <skhan@...uxfoundation.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.15 229/846] selftests: clone3: clone3: add case CLONE3_ARGS_NO_TEST

From: Anders Roxell <anders.roxell@...aro.org>

[ Upstream commit a531b0c23c0fc68ad758cc31a74cf612a4dafeb0 ]

Building selftests/clone3 with clang warns about enumeration not handled
in switch case:

clone3.c:54:10: warning: enumeration value 'CLONE3_ARGS_NO_TEST' not handled in switch [-Wswitch]
        switch (test_mode) {
                ^

Add the missing switch case with a comment.

Fixes: 17a810699c18 ("selftests: add tests for clone3()")
Signed-off-by: Anders Roxell <anders.roxell@...aro.org>
Acked-by: Christian Brauner <christian.brauner@...ntu.com>
Signed-off-by: Shuah Khan <skhan@...uxfoundation.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 tools/testing/selftests/clone3/clone3.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/testing/selftests/clone3/clone3.c b/tools/testing/selftests/clone3/clone3.c
index 42be3b9258301..076cf4325f783 100644
--- a/tools/testing/selftests/clone3/clone3.c
+++ b/tools/testing/selftests/clone3/clone3.c
@@ -52,6 +52,12 @@ static int call_clone3(uint64_t flags, size_t size, enum test_mode test_mode)
 		size = sizeof(struct __clone_args);
 
 	switch (test_mode) {
+	case CLONE3_ARGS_NO_TEST:
+		/*
+		 * Uses default 'flags' and 'SIGCHLD'
+		 * assignment.
+		 */
+		break;
 	case CLONE3_ARGS_ALL_0:
 		args.flags = 0;
 		args.exit_signal = 0;
-- 
2.34.1