From a32e8d4abf4ba882bb4d0d85f4710aa75e041758 Mon Sep 17 00:00:00 2001 From: "Dmitry V. Levin" Date: Tue, 16 Jul 2019 16:29:35 -0700 Subject: [PATCH] parisc: define syscall_get_error() syscall_get_error() is required to be implemented on all architectures in addition to already implemented syscall_get_nr(), syscall_get_arguments(), syscall_get_return_value(), and syscall_get_arch() functions in order to extend the generic ptrace API with PTRACE_GET_SYSCALL_INFO request. Link: http://lkml.kernel.org/r/20190510152812.GD28558@altlinux.org Signed-off-by: Dmitry V. Levin Acked-by: Helge Deller [parisc] Cc: James E.J. Bottomley Cc: Elvira Khabirova Cc: Eugene Syromyatnikov Cc: Oleg Nesterov Cc: Andy Lutomirski Cc: Benjamin Herrenschmidt Cc: Greentime Hu Cc: James Hogan Cc: kbuild test robot Cc: Kees Cook Cc: Michael Ellerman Cc: Paul Burton Cc: Paul Mackerras Cc: Ralf Baechle Cc: Richard Kuo Cc: Shuah Khan Cc: Vincent Chen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/parisc/include/asm/syscall.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/parisc/include/asm/syscall.h b/arch/parisc/include/asm/syscall.h index 80757e43cf2c0..00b127a5e09ba 100644 --- a/arch/parisc/include/asm/syscall.h +++ b/arch/parisc/include/asm/syscall.h @@ -29,6 +29,13 @@ static inline void syscall_get_arguments(struct task_struct *tsk, args[0] = regs->gr[26]; } +static inline long syscall_get_error(struct task_struct *task, + struct pt_regs *regs) +{ + unsigned long error = regs->gr[28]; + return IS_ERR_VALUE(error) ? error : 0; +} + static inline long syscall_get_return_value(struct task_struct *task, struct pt_regs *regs) { -- 2.39.5