arm64/ptrace: Use system_supports_tpidr2() to check for TPIDR2 support
We have a separate system_supports_tpidr2() to check for TPIDR2 support
but were using system_supports_sme() in tls_set(). While these are
currently identical let's use the specific check instead so we don't have
any surprises in future.
Reported-by: Will Deacon <will@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
index c2fb575..665a2b2 100644
--- a/arch/arm64/kernel/ptrace.c
+++ b/arch/arm64/kernel/ptrace.c
@@ -688,7 +688,7 @@ static int tls_set(struct task_struct *target, const struct user_regset *regset,
unsigned long tls[2];
tls[0] = target->thread.uw.tp_value;
- if (system_supports_sme())
+ if (system_supports_tpidr2())
tls[1] = target->thread.tpidr2_el0;
ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, tls, 0, count);
@@ -696,7 +696,7 @@ static int tls_set(struct task_struct *target, const struct user_regset *regset,
return ret;
target->thread.uw.tp_value = tls[0];
- if (system_supports_sme())
+ if (system_supports_tpidr2())
target->thread.tpidr2_el0 = tls[1];
return ret;
