On 04/12/2025 09:21, Jinjie Ruan wrote: > Currently, x86, Riscv, Loongarch use the generic entry which makes > maintainers' work easier and codes more elegant. arm64 has already > switched to the generic IRQ entry, so completely convert arm64 to use > the generic entry infrastructure from kernel/entry/*. > > The changes are below: > - Remove TIF_SYSCALL_* flag. > > - Remove _TIF_SYSCALL_WORK and has_syscall_work(), as _TIF_SYSCALL_WORK > is equal with SYSCALL_WORK_ENTER.
Should be updated considering patch 7 (has_syscall_work() no longer exists and there is also _TIF_SYSCALL_EXIT_WORK). > - Implement arch_ptrace_report_syscall_entry/exit() with > report_syscall_entry/exit() to do arm64-specific save/restore > during syscall entry/exit. > > - Add "ARCH_SYSCALL_WORK_EXIT" to be defined as "_TIF_SECCOMP | > _TIF_SYSCALL_EMU" to keep the arm64 behaviour unchanged. No longer the case. > - Remove arm64 syscall_trace_enter(), syscall_exit_to_user_mode_prepare(), > and related sub-functions including syscall_exit_work() and > syscall_enter_audit(), by calling generic entry's functions with similar > functionality. Would be good to talk about SYSCALL_EXIT_TRAP as well. Otherwise: Reviewed-by: Kevin Brodsky <[email protected]> > - Implement arch_syscall_is_vdso_sigreturn() to support "Syscall User > Dispatch". > > Suggested-by: Kevin Brodsky <[email protected]> > Suggested-by: Mark Rutland <[email protected]> > Signed-off-by: Jinjie Ruan <[email protected]> > > [...]
