Commit 94ab1500 authored by Mark Brown's avatar Mark Brown Committed by Catalin Marinas
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kselftest/arm64: Fix test for streaming FPSIMD write in sve-ptrace 



Since f916dd32 ("arm64/fpsimd: ptrace: Mandate SVE payload for
streaming-mode state") we do not support writing FPSIMD payload data when
writing NT_ARM_SSVE but the sve-ptrace test has an explicit test for
this being supported which was not updated to reflect the new behaviour.
Fix the test to expect a failure when writing FPSIMD data to the
streaming mode register set.

Acked-by: default avatarMark Rutland <mark.rutland@arm.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20250609-kselftest-arm64-ssve-fixups-v2-2-998fcfa6f240@kernel.org


Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent 867446f0

tools/testing/selftests/arm64/fp/sve-ptrace.c

+3 −1
Original line number Diff line number Diff line
@@ -301,8 +301,10 @@ static void ptrace_sve_fpsimd(pid_t child, const struct vec_type *type) 
			p[j] = j;

	}



	/* This should only succeed for SVE */

	ret = set_sve(child, type, sve);

	ksft_test_result(ret == 0, "%s FPSIMD set via SVE: %d\n",

	ksft_test_result((type->regset == NT_ARM_SVE) == (ret == 0),

			 "%s FPSIMD set via SVE: %d\n",

			 type->name, ret);

	if (ret)

		goto out;