From: Zenghui Yu <yuzenghui@huawei.com>
To: <linux-arm-kernel@lists.infradead.org>, <linux-kernel@vger.kernel.org>
Cc: <oleg@redhat.com>, <catalin.marinas@arm.com>, <will@kernel.org>,
<broonie@kernel.org>, <wanghaibin.wang@huawei.com>,
<zhouquan65@huawei.com>, <sundongxu3@huawei.com>,
Zenghui Yu <yuzenghui@huawei.com>
Subject: [PATCH] arm64: ptrace: Use ARM64_SME to guard the SME register enumerations
Date: Wed, 14 Dec 2022 21:59:43 +0800 [thread overview]
Message-ID: <20221214135943.379-1-yuzenghui@huawei.com> (raw)
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>
---
arch/arm64/kernel/ptrace.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
index 2686ab157601..0c321ad23cd3 100644
--- a/arch/arm64/kernel/ptrace.c
+++ b/arch/arm64/kernel/ptrace.c
@@ -1357,7 +1357,7 @@ enum aarch64_regset {
#ifdef CONFIG_ARM64_SVE
REGSET_SVE,
#endif
-#ifdef CONFIG_ARM64_SVE
+#ifdef CONFIG_ARM64_SME
REGSET_SSVE,
REGSET_ZA,
#endif
--
2.33.0
next reply other threads:[~2022-12-14 14:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-14 13:59 Zenghui Yu [this message]
2022-12-14 14:55 ` Mark Brown
2023-01-05 18:04 ` Will Deacon
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