diff options
| author | Leonardo Bras <leobras@redhat.com> | 2024-01-03 13:00:22 -0300 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2024-03-19 16:39:39 -0700 |
| commit | 5917ea17ad07f35bb5be4fd5fdcd408f090e347b (patch) | |
| tree | 34c9b64a528c454e6b5c8dd0e7edda5e6604b2c6 /arch/riscv/kernel/ptrace.c | |
| parent | 4c0b5a451675e9a95be98a16ddb889bb0486d2ad (diff) | |
| download | lwn-5917ea17ad07f35bb5be4fd5fdcd408f090e347b.tar.gz lwn-5917ea17ad07f35bb5be4fd5fdcd408f090e347b.zip | |
riscv: Introduce is_compat_thread() into compat.h
task_user_regset_view() makes use of a function very similar to
is_compat_task(), but pointing to a any thread.
In arm64 asm/compat.h there is a function very similar to that:
is_compat_thread(struct thread_info *thread)
Copy this function to riscv asm/compat.h and make use of it into
task_user_regset_view().
Also, introduce a compile-time test for CONFIG_COMPAT and simplify the
function code by removing the #ifdef.
Signed-off-by: Leonardo Bras <leobras@redhat.com>
Reviewed-by: Guo Ren <guoren@kernel.org>
Reviewed-by: Andy Chiu <andy.chiu@sifive.com>
Link: https://lore.kernel.org/r/20240103160024.70305-6-leobras@redhat.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/kernel/ptrace.c')
| -rw-r--r-- | arch/riscv/kernel/ptrace.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/riscv/kernel/ptrace.c b/arch/riscv/kernel/ptrace.c index 2afe460de16a..f36283212361 100644 --- a/arch/riscv/kernel/ptrace.c +++ b/arch/riscv/kernel/ptrace.c @@ -374,14 +374,14 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request, return ret; } +#else +static const struct user_regset_view compat_riscv_user_native_view = {}; #endif /* CONFIG_COMPAT */ const struct user_regset_view *task_user_regset_view(struct task_struct *task) { -#ifdef CONFIG_COMPAT - if (test_tsk_thread_flag(task, TIF_32BIT)) + if (is_compat_thread(&task->thread_info)) return &compat_riscv_user_native_view; else -#endif return &riscv_user_native_view; } |