| From 57b74c1b318625057398ccbe479a157507488d8c Mon Sep 17 00:00:00 2001 |
| From: Carlos Llamas <cmllamas@google.com> |
| Date: Tue, 14 Dec 2021 05:58:48 +0000 |
| Subject: [PATCH] selftests/binderfs: skip tests for unsupported kernels |
| |
| Binderfs was first introduced in Linux 5.0 release, so we need to skip |
| these tests for older kernels. Also, we force a successful exit as the |
| current framework doesn't handle KSFT_SKIP return codes. |
| |
| Signed-off-by: Carlos Llamas <cmllamas@google.com> |
| --- |
| .../filesystems/binderfs/binderfs_test.c | 28 +++++++++++++++++++ |
| 1 file changed, 28 insertions(+) |
| |
| diff --git a/tools/testing/selftests/filesystems/binderfs/binderfs_test.c b/tools/testing/selftests/filesystems/binderfs/binderfs_test.c |
| index 8c2ed962e1c7..be5a8f446066 100644 |
| --- a/tools/testing/selftests/filesystems/binderfs/binderfs_test.c |
| +++ b/tools/testing/selftests/filesystems/binderfs/binderfs_test.c |
| @@ -12,6 +12,7 @@ |
| #include <sys/mount.h> |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| +#include <sys/utsname.h> |
| #include <unistd.h> |
| #include <linux/android/binder.h> |
| #include <linux/android/binderfs.h> |
| @@ -267,8 +268,35 @@ static void binderfs_test_unprivileged() |
| __do_binderfs_test(); |
| } |
| |
| +/* binderfs first introduced in Linux 5.0 */ |
| +bool binderfs_supported(void) |
| +{ |
| + const int min_kernel_version = 5; |
| + struct utsname utsname; |
| + int ret, version; |
| + |
| + ret = uname(&utsname); |
| + if (ret) |
| + ksft_exit_fail_msg("%s - Failed to get kernel version\n", |
| + strerror(errno)); |
| + |
| + ret = sscanf(utsname.release, "%d.", &version); |
| + if (ret != 1) |
| + ksft_exit_fail_msg("%s - Failed to parse uname: %s\n", |
| + strerror(errno), utsname.release); |
| + |
| + return version >= min_kernel_version? true: false; |
| +} |
| + |
| + |
| int main(int argc, char *argv[]) |
| { |
| + /* Force success exit for older kernels */ |
| + if (!binderfs_supported()) { |
| + ksft_print_msg("Skipping tests - binderfs not supported\n"); |
| + ksft_exit_pass(); |
| + } |
| + |
| binderfs_test_privileged(); |
| binderfs_test_unprivileged(); |
| ksft_exit_pass(); |
| -- |
| 2.34.1.173.g76aa8bc2d0-goog |
| |