diff options
| author | Mark Brown <broonie@kernel.org> | 2022-12-27 16:01:08 +0300 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2023-01-12 19:06:45 +0300 |
| commit | c3cdd54c6138871b04dc2306fbfe30ece947ac48 (patch) | |
| tree | 7fd575d74fdae3815fa0f7273ece38f3c1fb4afc /arch/arm64/kernel/ptrace.c | |
| parent | b7bfaa761d760e72a969d116517eaa12e404c262 (diff) | |
| download | linux-c3cdd54c6138871b04dc2306fbfe30ece947ac48.tar.xz | |
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>
Link: https://lore.kernel.org/r/20221208-arm64-tpidr2-ptrace-feat-v2-1-3760c895a574@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/kernel/ptrace.c')
| -rw-r--r-- | arch/arm64/kernel/ptrace.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c index 2686ab157601..33d985bb2707 100644 --- a/arch/arm64/kernel/ptrace.c +++ b/arch/arm64/kernel/ptrace.c @@ -683,7 +683,7 @@ 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); @@ -691,7 +691,7 @@ 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; |