arm64: ptrace: Use ARM64_SME to guard the SME register enumerations

commit eb9a85261e297292c4cc44b628c1373c996cedc2 upstream.

We currently guard REGSET_{SSVE, ZA} using ARM64_SVE for no good reason.
Both enumerations would be pointless without ARM64_SME and create two empty
entries in aarch64_regsets[] which would then become part of a process's
native regset view (they should be ignored though).

Switch to use ARM64_SME instead.

Fixes: e12310a0d30f ("arm64/sme: Implement ptrace support for streaming mode SVE registers")
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20221214135943.379-1-yuzenghui@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
index c2fb575..92bc9a2 100644 (file)
--- a/arch/arm64/kernel/ptrace.c
+++ b/arch/arm64/kernel/ptrace.c
@@ -1364,7 +1364,7 @@ enum aarch64_regset {
 #ifdef CONFIG_ARM64_SVE
        REGSET_SVE,
 #endif
-#ifdef CONFIG_ARM64_SVE
+#ifdef CONFIG_ARM64_SME
        REGSET_SSVE,
        REGSET_ZA,
 #endif