[PATCH v17 08/15] arm64: ptrace: Extract arm64_syscall_exit_to_user_mode_work() helper

[Linus Walleij]

On Tue, Jul 21, 2026 at 10:19 AM Jinjie Ruan <ruanjinjie at huawei.com> wrote:

> Introduce a helper arm64_syscall_exit_to_user_mode_work() that
> encapsulates the re-reading of thread flags and the call to
> syscall_trace_exit().  Use it in el0_svc_common() to replace
> the open-coded instances, removing the duplicated flags read
> and making the control flow simpler.
>
> This aligns the arm64 exit path with the pattern expected by the
> generic entry infrastructure, which uses a similar
> syscall_exit_to_user_mode_work() callback.
>
> No functional changes intended; this is a preparation step for converting
> arm64 to the generic entry infrastructure.
>
> Cc: Mark Rutland <mark.rutland at arm.com>
> Cc: Will Deacon <will at kernel.org>
> Cc: Catalin Marinas <catalin.marinas at arm.com>
> Cc: Ada Couprie Diaz <ada.coupriediaz at arm.com>
> Signed-off-by: Jinjie Ruan <ruanjinjie at huawei.com>

Looks right to me!
Reviewed-by: Linus Walleij <linusw at kernel.org>

Yours,
Linus Walleij