From f78280b1a3cedd9f68d5f596179675514a15bd1d Mon Sep 17 00:00:00 2001 From: "Jason A. Donenfeld" Date: Thu, 29 Aug 2024 20:23:23 +0200 Subject: [PATCH] selftests: vDSO: skip getrandom test if architecture is unsupported If the getrandom test compiles for an arch, don't exit fatally if the actual cpu it's running on is unsupported. Suggested-by: Adhemerval Zanella Netto Signed-off-by: Jason A. Donenfeld --- tools/testing/selftests/vDSO/vdso_test_getrandom.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/vDSO/vdso_test_getrandom.c b/tools/testing/selftests/vDSO/vdso_test_getrandom.c index 20bbef992c48..5db8ac8999cd 100644 --- a/tools/testing/selftests/vDSO/vdso_test_getrandom.c +++ b/tools/testing/selftests/vDSO/vdso_test_getrandom.c @@ -104,6 +104,7 @@ static void vgetrandom_init(void) const char *version = versions[VDSO_VERSION]; const char *name = names[VDSO_NAMES][6]; unsigned long sysinfo_ehdr = getauxval(AT_SYSINFO_EHDR); + size_t ret; if (!sysinfo_ehdr) { printf("AT_SYSINFO_EHDR is not present!\n"); @@ -115,7 +116,11 @@ static void vgetrandom_init(void) printf("%s is missing!\n", name); exit(KSFT_FAIL); } - if (vgrnd.fn(NULL, 0, 0, &vgrnd.params, ~0UL) != 0) { + ret = vgrnd.fn(NULL, 0, 0, &vgrnd.params, ~0UL); + if (ret == -ENOSYS) { + printf("unsupported architecture\n"); + exit(KSFT_SKIP); + } else if (ret) { printf("failed to fetch vgetrandom params!\n"); exit(KSFT_FAIL); } -- 2.20.1