linux-kernel - [PATCH 1/3] kselftest/arm64: Test SME on SME only systems in fp-ptrace

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Message-Id: <20250718-arm64-fp-ptrace-sme-only-v1-1-3b96dd19a503@kernel.org>
Date: Fri, 18 Jul 2025 23:14:50 +0100
From: Mark Brown <broonie@...nel.org>
To: Catalin Marinas <catalin.marinas@....com>, 
 Will Deacon <will@...nel.org>, Shuah Khan <shuah@...nel.org>
Cc: Mark Rutland <mark.rutland@....com>, 
 linux-arm-kernel@...ts.infradead.org, linux-kselftest@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Mark Brown <broonie@...nel.org>
Subject: [PATCH 1/3] kselftest/arm64: Test SME on SME only systems in
 fp-ptrace

When checking that the vector extensions are supported fp-ptrace
currently only checks for SVE being supported which means that we get
into a confused half configured state for SME only systems. Check for
SME as well.

Signed-off-by: Mark Brown <broonie@...nel.org>
---
 tools/testing/selftests/arm64/fp/fp-ptrace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/arm64/fp/fp-ptrace.c b/tools/testing/selftests/arm64/fp/fp-ptrace.c
index 191c47ca0ed8..d953e9b0ebe5 100644
--- a/tools/testing/selftests/arm64/fp/fp-ptrace.c
+++ b/tools/testing/selftests/arm64/fp/fp-ptrace.c
@@ -1607,7 +1607,7 @@ int main(void)
 	 * Run the test set if there is no SVE or SME, with those we
 	 * have to pick a VL for each run.
 	 */
-	if (!sve_supported()) {
+	if (!sve_supported() && !sme_supported()) {
 		test_config.sve_vl_in = 0;
 		test_config.sve_vl_expected = 0;
 		test_config.sme_vl_in = 0;

-- 
2.39.5