linux-kernel - [PATCH] selftests/memfd: delete unused declarations

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Date: Thu, 18 Jan 2024 01:50:57 -0800
From: Greg Thelen <gthelen@...gle.com>
To: Daniel Verkamp <dverkamp@...omium.org>, Aleksa Sarai <cyphar@...har.com>, 
	Shuah Khan <shuah@...nel.org>, Andrew Morton <akpm@...ux-foundation.org>, 
	Jeff Xu <jeffxu@...gle.com>, Kees Cook <keescook@...omium.org>
Cc: linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Greg Thelen <gthelen@...gle.com>
Subject: [PATCH] selftests/memfd: delete unused declarations

Commit 32d118ad50a5 ("selftests/memfd: add tests for F_SEAL_EXEC"):
- added several unused 'nbytes' local variables

Commit 6469b66e3f5a ("selftests: improve vm.memfd_noexec sysctl tests"):
- orphaned 'newpid_thread_fn2()' forward declaration
- orphaned 'join_newpid_thread()' forward declaration
- added unused 'pid' local in sysctl_simple_child()
- orphaned 'fd' local in sysctl_simple_child()
- added unused 'fd' in sysctl_nested_child()

Delete the unused locals and forward declarations.

Signed-off-by: Greg Thelen <gthelen@...gle.com>
---
 tools/testing/selftests/memfd/memfd_test.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/tools/testing/selftests/memfd/memfd_test.c b/tools/testing/selftests/memfd/memfd_test.c
index 3df008677239..18f585684e20 100644
--- a/tools/testing/selftests/memfd/memfd_test.c
+++ b/tools/testing/selftests/memfd/memfd_test.c
@@ -44,8 +44,6 @@
  */
 static size_t mfd_def_size = MFD_DEF_SIZE;
 static const char *memfd_str = MEMFD_STR;
-static int newpid_thread_fn2(void *arg);
-static void join_newpid_thread(pid_t pid);
 
 static ssize_t fd2name(int fd, char *buf, size_t bufsize)
 {
@@ -194,7 +192,6 @@ static unsigned int mfd_assert_get_seals(int fd)
 static void mfd_assert_has_seals(int fd, unsigned int seals)
 {
 	char buf[PATH_MAX];
-	int nbytes;
 	unsigned int s;
 	fd2name(fd, buf, PATH_MAX);
 
@@ -696,7 +693,6 @@ static void mfd_assert_mode(int fd, int mode)
 {
 	struct stat st;
 	char buf[PATH_MAX];
-	int nbytes;
 
 	fd2name(fd, buf, PATH_MAX);
 
@@ -715,7 +711,6 @@ static void mfd_assert_mode(int fd, int mode)
 static void mfd_assert_chmod(int fd, int mode)
 {
 	char buf[PATH_MAX];
-	int nbytes;
 
 	fd2name(fd, buf, PATH_MAX);
 
@@ -731,7 +726,6 @@ static void mfd_fail_chmod(int fd, int mode)
 {
 	struct stat st;
 	char buf[PATH_MAX];
-	int nbytes;
 
 	fd2name(fd, buf, PATH_MAX);
 
@@ -1254,9 +1248,6 @@ static void test_sysctl_set_sysctl2(void)
 
 static int sysctl_simple_child(void *arg)
 {
-	int fd;
-	int pid;
-
 	printf("%s sysctl 0\n", memfd_str);
 	test_sysctl_set_sysctl0();
 
@@ -1321,7 +1312,6 @@ static void test_sysctl_sysctl2_failset(void)
 
 static int sysctl_nested_child(void *arg)
 {
-	int fd;
 	int pid;
 
 	printf("%s nested sysctl 0\n", memfd_str);
-- 
2.43.0.429.g432eaa2c6b-goog