This is a note to let you know that I've just added the patch titled
arm64: ptrace: Use ARM64_SME to guard the SME register enumerations
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm64-ptrace-use-arm64_sme-to-guard-the-sme-register-enumerations.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From eb9a85261e297292c4cc44b628c1373c996cedc2 Mon Sep 17 00:00:00 2001
From: Zenghui Yu <yuzenghui@xxxxxxxxxx>
Date: Wed, 14 Dec 2022 21:59:43 +0800
Subject: arm64: ptrace: Use ARM64_SME to guard the SME register enumerations
From: Zenghui Yu <yuzenghui@xxxxxxxxxx>
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@xxxxxxxxxx>
Reviewed-by: Mark Brown <broonie@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20221214135943.379-1-yuzenghui@xxxxxxxxxx
Signed-off-by: Will Deacon <will@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm64/kernel/ptrace.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- 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
Patches currently in stable-queue which might be from yuzenghui@xxxxxxxxxx are
queue-6.1/arm64-ptrace-use-arm64_sme-to-guard-the-sme-register-enumerations.patch
