6.11-stable review patch. If anyone has any objections, please let me know.
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From: Mark Brown broonie@kernel.org
[ Upstream commit 6f0315330af7a57c1c00587fdfb69c7778bf1c50 ]
The test case for SME vector length changes via sigreturn use a bit too much cut'n'paste and only actually changed the SVE vector length in the test itself. Andre's recent factoring out of the initialisation code caused this to be exposed and the test to start failing. Fix the test to actually cover the thing it's supposed to test.
Fixes: 4963aeb35a9e ("kselftest/arm64: signal: Add SME signal handling tests") Signed-off-by: Mark Brown broonie@kernel.org Reviewed-by: Andre Przywara andre.przywara@arm.com Tested-by: Andre Przywara andre.przywara@arm.com Link: https://lore.kernel.org/r/20240829-arm64-sme-signal-vl-change-test-v1-1-42d7... Signed-off-by: Will Deacon will@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- .../testcases/fake_sigreturn_sme_change_vl.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_sme_change_vl.c b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_sme_change_vl.c index cb8c051b5c8f2..dfd6a2badf9fb 100644 --- a/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_sme_change_vl.c +++ b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_sme_change_vl.c @@ -35,30 +35,30 @@ static int fake_sigreturn_ssve_change_vl(struct tdescr *td, { size_t resv_sz, offset; struct _aarch64_ctx *head = GET_SF_RESV_HEAD(sf); - struct sve_context *sve; + struct za_context *za;
/* Get a signal context with a SME ZA frame in it */ if (!get_current_context(td, &sf.uc, sizeof(sf.uc))) return 1;
resv_sz = GET_SF_RESV_SIZE(sf); - head = get_header(head, SVE_MAGIC, resv_sz, &offset); + head = get_header(head, ZA_MAGIC, resv_sz, &offset); if (!head) { - fprintf(stderr, "No SVE context\n"); + fprintf(stderr, "No ZA context\n"); return 1; }
- if (head->size != sizeof(struct sve_context)) { + if (head->size != sizeof(struct za_context)) { fprintf(stderr, "Register data present, aborting\n"); return 1; }
- sve = (struct sve_context *)head; + za = (struct za_context *)head;
/* No changes are supported; init left us at minimum VL so go to max */ fprintf(stderr, "Attempting to change VL from %d to %d\n", - sve->vl, vls[0]); - sve->vl = vls[0]; + za->vl, vls[0]); + za->vl = vls[0];
fake_sigreturn(&sf, sizeof(sf), 0);