[PATCH] kselftest/arm64: signal: Skip SVE signal test if not enough VLs supported

From: Cristian Marussi
Date: Tue May 24 2022 - 06:32:29 EST


On platform where SVE is supported but there are less than 2 VLs available
the signal SVE change test should be skipped instead of failing.

Reported-by: Andre Przywara <andre.przywara@xxxxxxx>
Tested-by: Andre Przywara <andre.przywara@xxxxxxx>
Cc: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Cristian Marussi <cristian.marussi@xxxxxxx>
---
.../arm64/signal/testcases/fake_sigreturn_sve_change_vl.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_sve_change_vl.c b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_sve_change_vl.c
index bb50b5adbf10..915821375b0a 100644
--- a/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_sve_change_vl.c
+++ b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_sve_change_vl.c
@@ -6,6 +6,7 @@
* supported and is expected to segfault.
*/

+#include <kselftest.h>
#include <signal.h>
#include <ucontext.h>
#include <sys/prctl.h>
@@ -40,6 +41,7 @@ static bool sve_get_vls(struct tdescr *td)
/* We need at least two VLs */
if (nvls < 2) {
fprintf(stderr, "Only %d VL supported\n", nvls);
+ td->result = KSFT_SKIP;
return false;
}

--
2.36.1