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

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@arm.com>
Tested-by: Andre Przywara <andre.przywara@arm.com>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220524103149.2802-1-cristian.marussi@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Cristian Marussi 2022-05-24 11:31:49 +01:00 committed by Catalin Marinas
parent 73e2d827a5
commit 78c09c0f4d
1 changed files with 2 additions and 0 deletions
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2
tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_sve_change_vl.c
View File

@ -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;
}