This patchset contains some patches commonly used by audit and ftrace.
Patch [1/2] defines system call related TIF_* flags to add syscall_trace() hooks, including ftrace, audit and seccomp, later. Those features will be implemented in separate patchsets, but it's safe to check for all TIF_* now because they can not be turned on anyway.
Patch [2/2] adds a function which returns a return value of system call.
Changes v1 -> v2: * added a guard against TIF_SYSCALL_TRACE at tracehook_report_syscall_*() * renamed _TIF_WORK_SYSCALL to _TIF_SYSCALL_WORK
Changes v2 -> v3: * reverted a change in syscall_trace() in v1 [1/2] * added "arm64: Add regs_return_value() in syscall.h" patch which was previously included in audit patch [2/2]
AKASHI Takahiro (2): arm64: make a single hook to syscall_trace() for all syscall features arm64: Add regs_return_value() in syscall.h
arch/arm64/include/asm/ptrace.h | 5 +++++ arch/arm64/include/asm/thread_info.h | 13 +++++++++++++ arch/arm64/kernel/entry.S | 5 +++-- 3 files changed, 21 insertions(+), 2 deletions(-)