Merge tag 'y2038-syscall-abi' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground into timers/2038

Pull additional syscall ABI cleanup for y2038 from Arnd Bergmann:

This is a follow-up to the y2038 syscall patches already merged in the tip
tree.  As the final 32-bit RISC-V syscall ABI is still being decided on,
this is the last chance to make a few corrections to leave out interfaces
based on 32-bit time_t along with the old off_t and rlimit types.

The series achieves this in a few steps:

- A couple of bug fixes for minor regressions I introduced
  in the original series

- A couple of older patches from Yury Norov that I had never
  merged in the past, these fix up the openat/open_by_handle_at and
  getrlimit/setrlimit syscalls to disallow the old versions of off_t
  and rlimit.

- Hiding the deprecated system calls behind an #ifdef in
  include/uapi/asm-generic/unistd.h

- Change arch/riscv to drop all these ABIs.

Originally, the plan was to also leave these out on C-Sky, but that now
has a glibc port that uses the older interfaces, so we need to leave
them in place.

scripts/checksyscalls.sh

@@ -30,12 +30,14 @@ cat << EOF
 #define __IGNORE_readlink	/* readlinkat */
 #define __IGNORE_symlink	/* symlinkat */
 #define __IGNORE_utimes		/* futimesat */
-#if BITS_PER_LONG == 64
 #define __IGNORE_stat		/* fstatat */
 #define __IGNORE_lstat		/* fstatat */
-#else
 #define __IGNORE_stat64		/* fstatat64 */
 #define __IGNORE_lstat64	/* fstatat64 */
+
+#ifndef __ARCH_WANT_SET_GET_RLIMIT
+#define __IGNORE_getrlimit	/* getrlimit */
+#define __IGNORE_setrlimit	/* setrlimit */
 #endif
 
 /* Missing flags argument */
@@ -133,11 +135,18 @@ cat << EOF
 #define __IGNORE_io_pgetevents
 #define __IGNORE_recvmmsg
 #define __IGNORE_mq_timedsend
-#define __IGNORE_mq_timedreceiv
+#define __IGNORE_mq_timedreceive
 #define __IGNORE_semtimedop
 #define __IGNORE_rt_sigtimedwait
 #define __IGNORE_futex
 #define __IGNORE_sched_rr_get_interval
+#define __IGNORE_gettimeofday
+#define __IGNORE_settimeofday
+#define __IGNORE_wait4
+#define __IGNORE_adjtimex
+#define __IGNORE_nanosleep
+#define __IGNORE_io_getevents
+#define __IGNORE_recvmmsg
 #endif
 
 /* i386-specific or historical system calls */