From: Christian Brauner <christian@xxxxxxxxxx> Subject: signal: make may_ptrace_stop() return bool may_ptrace_stop() already behaves like a boolean function. Let's actually declare it as such too. Link: http://lkml.kernel.org/r/20180602103653.18181-4-christian@xxxxxxxxxx Signed-off-by: Christian Brauner <christian@xxxxxxxxxx> Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx> Cc: Eric W. Biederman <ebiederm@xxxxxxxxxxxx> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxxxxx> Cc: James Morris <james.morris@xxxxxxxxxxxxx> Cc: Kees Cook <keescook@xxxxxxxxxxxx> Cc: Oleg Nesterov <oleg@xxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Stephen Smalley <sds@xxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- kernel/signal.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) --- a/kernel/signal.c~signal-make-may_ptrace_stop-return-bool +++ a/kernel/signal.c @@ -1875,10 +1875,10 @@ static void do_notify_parent_cldstop(str spin_unlock_irqrestore(&sighand->siglock, flags); } -static inline int may_ptrace_stop(void) +static inline bool may_ptrace_stop(void) { if (!likely(current->ptrace)) - return 0; + return false; /* * Are we in the middle of do_coredump? * If so and our tracer is also part of the coredump stopping @@ -1894,9 +1894,9 @@ static inline int may_ptrace_stop(void) */ if (unlikely(current->mm->core_state) && unlikely(current->mm == current->parent->mm)) - return 0; + return false; - return 1; + return true; } /* _
