Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timekeeping updates from Thomas Gleixner:
 "The timers and timekeeping departement provides:

   - Another large y2038 update with further preparations for providing
     the y2038 safe timespecs closer to the syscalls.

   - An overhaul of the SHCMT clocksource driver

   - SPDX license identifier updates

   - Small cleanups and fixes all over the place"

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (31 commits)
  tick/sched : Remove redundant cpu_online() check
  clocksource/drivers/dw_apb: Add reset control
  clocksource: Remove obsolete CLOCKSOURCE_OF_DECLARE
  clocksource/drivers: Unify the names to timer-* format
  clocksource/drivers/sh_cmt: Add R-Car gen3 support
  dt-bindings: timer: renesas: cmt: document R-Car gen3 support
  clocksource/drivers/sh_cmt: Properly line-wrap sh_cmt_of_table[] initializer
  clocksource/drivers/sh_cmt: Fix clocksource width for 32-bit machines
  clocksource/drivers/sh_cmt: Fixup for 64-bit machines
  clocksource/drivers/sh_tmu: Convert to SPDX identifiers
  clocksource/drivers/sh_mtu2: Convert to SPDX identifiers
  clocksource/drivers/sh_cmt: Convert to SPDX identifiers
  clocksource/drivers/renesas-ostm: Convert to SPDX identifiers
  clocksource: Convert to using %pOFn instead of device_node.name
  tick/broadcast: Remove redundant check
  RISC-V: Request newstat syscalls
  y2038: signal: Change rt_sigtimedwait to use __kernel_timespec
  y2038: socket: Change recvmmsg to use __kernel_timespec
  y2038: sched: Change sched_rr_get_interval to use __kernel_timespec
  y2038: utimes: Rework #ifdef guards for compat syscalls
  ...

7 files changed, 60 insertions, 60 deletions

diff --git a/fs/aio.c b/fs/aio.c
index b9350f3360c6..301e6314183b 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -2135,12 +2135,12 @@ COMPAT_SYSCALL_DEFINE5(io_getevents, compat_aio_context_t, ctx_id,
 		       compat_long_t, min_nr,
 		       compat_long_t, nr,
 		       struct io_event __user *, events,
-		       struct compat_timespec __user *, timeout)
+		       struct old_timespec32 __user *, timeout)
 {
 	struct timespec64 t;
 	int ret;
 
-	if (timeout && compat_get_timespec64(&t, timeout))
+	if (timeout && get_old_timespec32(&t, timeout))
 		return -EFAULT;
 
 	ret = do_io_getevents(ctx_id, min_nr, nr, events, timeout ? &t : NULL);
@@ -2160,7 +2160,7 @@ COMPAT_SYSCALL_DEFINE6(io_pgetevents,
 		compat_long_t, min_nr,
 		compat_long_t, nr,
 		struct io_event __user *, events,
-		struct compat_timespec __user *, timeout,
+		struct old_timespec32 __user *, timeout,
 		const struct __compat_aio_sigset __user *, usig)
 {
 	struct __compat_aio_sigset ksig = { NULL, };
@@ -2168,7 +2168,7 @@ COMPAT_SYSCALL_DEFINE6(io_pgetevents,
 	struct timespec64 t;
 	int ret;
 
-	if (timeout && compat_get_timespec64(&t, timeout))
+	if (timeout && get_old_timespec32(&t, timeout))
 		return -EFAULT;
 
 	if (usig && copy_from_user(&ksig, usig, sizeof(ksig)))
diff --git a/fs/compat_binfmt_elf.c b/fs/compat_binfmt_elf.c
index 504b3c3539dc..15f6e96b3bd9 100644
--- a/fs/compat_binfmt_elf.c
+++ b/fs/compat_binfmt_elf.c
@@ -52,7 +52,7 @@
 #define elf_prpsinfo	compat_elf_prpsinfo
 
 #undef ns_to_timeval
-#define ns_to_timeval ns_to_compat_timeval
+#define ns_to_timeval ns_to_old_timeval32
 
 /*
  * To use this file, asm/elf.h must define compat_elf_check_arch.
diff --git a/fs/read_write.c b/fs/read_write.c
index 8a2737f0d61d..603794b207eb 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -331,7 +331,7 @@ COMPAT_SYSCALL_DEFINE3(lseek, unsigned int, fd, compat_off_t, offset, unsigned i
 }
 #endif
 
-#ifdef __ARCH_WANT_SYS_LLSEEK
+#if !defined(CONFIG_64BIT) || defined(CONFIG_COMPAT)
 SYSCALL_DEFINE5(llseek, unsigned int, fd, unsigned long, offset_high,
 		unsigned long, offset_low, loff_t __user *, result,
 		unsigned int, whence)
diff --git a/fs/select.c b/fs/select.c
index 4a6b6e4b21cb..22b3bf89f051 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -1120,7 +1120,7 @@ int compat_poll_select_copy_remaining(struct timespec64 *end_time, void __user *
 		ts.tv_sec = ts.tv_nsec = 0;
 
 	if (timeval) {
-		struct compat_timeval rtv;
+		struct old_timeval32 rtv;
 
 		rtv.tv_sec = ts.tv_sec;
 		rtv.tv_usec = ts.tv_nsec / NSEC_PER_USEC;
@@ -1128,7 +1128,7 @@ int compat_poll_select_copy_remaining(struct timespec64 *end_time, void __user *
 		if (!copy_to_user(p, &rtv, sizeof(rtv)))
 			return ret;
 	} else {
-		if (!compat_put_timespec64(&ts, p))
+		if (!put_old_timespec32(&ts, p))
 			return ret;
 	}
 	/*
@@ -1257,10 +1257,10 @@ out_nofds:
 
 static int do_compat_select(int n, compat_ulong_t __user *inp,
 	compat_ulong_t __user *outp, compat_ulong_t __user *exp,
-	struct compat_timeval __user *tvp)
+	struct old_timeval32 __user *tvp)
 {
 	struct timespec64 end_time, *to = NULL;
-	struct compat_timeval tv;
+	struct old_timeval32 tv;
 	int ret;
 
 	if (tvp) {
@@ -1282,7 +1282,7 @@ static int do_compat_select(int n, compat_ulong_t __user *inp,
 
 COMPAT_SYSCALL_DEFINE5(select, int, n, compat_ulong_t __user *, inp,
 	compat_ulong_t __user *, outp, compat_ulong_t __user *, exp,
-	struct compat_timeval __user *, tvp)
+	struct old_timeval32 __user *, tvp)
 {
 	return do_compat_select(n, inp, outp, exp, tvp);
 }
@@ -1307,7 +1307,7 @@ COMPAT_SYSCALL_DEFINE1(old_select, struct compat_sel_arg_struct __user *, arg)
 
 static long do_compat_pselect(int n, compat_ulong_t __user *inp,
 	compat_ulong_t __user *outp, compat_ulong_t __user *exp,
-	struct compat_timespec __user *tsp, compat_sigset_t __user *sigmask,
+	struct old_timespec32 __user *tsp, compat_sigset_t __user *sigmask,
 	compat_size_t sigsetsize)
 {
 	sigset_t ksigmask, sigsaved;
@@ -1315,7 +1315,7 @@ static long do_compat_pselect(int n, compat_ulong_t __user *inp,
 	int ret;
 
 	if (tsp) {
-		if (compat_get_timespec64(&ts, tsp))
+		if (get_old_timespec32(&ts, tsp))
 			return -EFAULT;
 
 		to = &end_time;
@@ -1355,7 +1355,7 @@ static long do_compat_pselect(int n, compat_ulong_t __user *inp,
 
 COMPAT_SYSCALL_DEFINE6(pselect6, int, n, compat_ulong_t __user *, inp,
 	compat_ulong_t __user *, outp, compat_ulong_t __user *, exp,
-	struct compat_timespec __user *, tsp, void __user *, sig)
+	struct old_timespec32 __user *, tsp, void __user *, sig)
 {
 	compat_size_t sigsetsize = 0;
 	compat_uptr_t up = 0;
@@ -1373,7 +1373,7 @@ COMPAT_SYSCALL_DEFINE6(pselect6, int, n, compat_ulong_t __user *, inp,
 }
 
 COMPAT_SYSCALL_DEFINE5(ppoll, struct pollfd __user *, ufds,
-	unsigned int,  nfds, struct compat_timespec __user *, tsp,
+	unsigned int,  nfds, struct old_timespec32 __user *, tsp,
 	const compat_sigset_t __user *, sigmask, compat_size_t, sigsetsize)
 {
 	sigset_t ksigmask, sigsaved;
@@ -1381,7 +1381,7 @@ COMPAT_SYSCALL_DEFINE5(ppoll, struct pollfd __user *, ufds,
 	int ret;
 
 	if (tsp) {
-		if (compat_get_timespec64(&ts, tsp))
+		if (get_old_timespec32(&ts, tsp))
 			return -EFAULT;
 
 		to = &end_time;
diff --git a/fs/stat.c b/fs/stat.c
index f8e6fb2c3657..adbfcd86c81b 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -280,6 +280,8 @@ SYSCALL_DEFINE2(fstat, unsigned int, fd, struct __old_kernel_stat __user *, stat
 
 #endif /* __ARCH_WANT_OLD_STAT */
 
+#ifdef __ARCH_WANT_NEW_STAT
+
 #if BITS_PER_LONG == 32
 #  define choose_32_64(a,b) a
 #else
@@ -378,6 +380,7 @@ SYSCALL_DEFINE2(newfstat, unsigned int, fd, struct stat __user *, statbuf)
 
 	return error;
 }
+#endif
 
 static int do_readlinkat(int dfd, const char __user *pathname,
 			 char __user *buf, int bufsiz)
diff --git a/fs/timerfd.c b/fs/timerfd.c
index d69ad801eb80..803ca070d42e 100644
--- a/fs/timerfd.c
+++ b/fs/timerfd.c
@@ -561,29 +561,29 @@ SYSCALL_DEFINE2(timerfd_gettime, int, ufd, struct __kernel_itimerspec __user *,
 
 #ifdef CONFIG_COMPAT_32BIT_TIME
 COMPAT_SYSCALL_DEFINE4(timerfd_settime, int, ufd, int, flags,
-		const struct compat_itimerspec __user *, utmr,
-		struct compat_itimerspec __user *, otmr)
+		const struct old_itimerspec32 __user *, utmr,
+		struct old_itimerspec32 __user *, otmr)
 {
 	struct itimerspec64 new, old;
 	int ret;
 
-	if (get_compat_itimerspec64(&new, utmr))
+	if (get_old_itimerspec32(&new, utmr))
 		return -EFAULT;
 	ret = do_timerfd_settime(ufd, flags, &new, &old);
 	if (ret)
 		return ret;
-	if (otmr && put_compat_itimerspec64(&old, otmr))
+	if (otmr && put_old_itimerspec32(&old, otmr))
 		return -EFAULT;
 	return ret;
 }
 
 COMPAT_SYSCALL_DEFINE2(timerfd_gettime, int, ufd,
-		struct compat_itimerspec __user *, otmr)
+		struct old_itimerspec32 __user *, otmr)
 {
 	struct itimerspec64 kotmr;
 	int ret = do_timerfd_gettime(ufd, &kotmr);
 	if (ret)
 		return ret;
-	return put_compat_itimerspec64(&kotmr, otmr) ? -EFAULT : 0;
+	return put_old_itimerspec32(&kotmr, otmr) ? -EFAULT : 0;
 }
 #endif
diff --git a/fs/utimes.c b/fs/utimes.c
index 69d4b6ba1bfb..bdcf2daf39c1 100644
--- a/fs/utimes.c
+++ b/fs/utimes.c
@@ -8,35 +8,6 @@
 #include <linux/compat.h>
 #include <asm/unistd.h>
 
-#ifdef __ARCH_WANT_SYS_UTIME
-
-/*
- * sys_utime() can be implemented in user-level using sys_utimes().
- * Is this for backwards compatibility?  If so, why not move it
- * into the appropriate arch directory (for those architectures that
- * need it).
- */
-
-/* If times==NULL, set access and modification to current time,
- * must be owner or have write permission.
- * Else, update from *times, must be owner or super user.
- */
-SYSCALL_DEFINE2(utime, char __user *, filename, struct utimbuf __user *, times)
-{
-	struct timespec64 tv[2];
-
-	if (times) {
-		if (get_user(tv[0].tv_sec, &times->actime) ||
-		    get_user(tv[1].tv_sec, &times->modtime))
-			return -EFAULT;
-		tv[0].tv_nsec = 0;
-		tv[1].tv_nsec = 0;
-	}
-	return do_utimes(AT_FDCWD, filename, times ? tv : NULL, 0);
-}
-
-#endif
-
 static bool nsec_valid(long nsec)
 {
 	if (nsec == UTIME_OMIT || nsec == UTIME_NOW)
@@ -166,7 +137,7 @@ out:
 }
 
 SYSCALL_DEFINE4(utimensat, int, dfd, const char __user *, filename,
-		struct timespec __user *, utimes, int, flags)
+		struct __kernel_timespec __user *, utimes, int, flags)
 {
 	struct timespec64 tstimes[2];
 
@@ -184,6 +155,13 @@ SYSCALL_DEFINE4(utimensat, int, dfd, const char __user *, filename,
 	return do_utimes(dfd, filename, utimes ? tstimes : NULL, flags);
 }
 
+#ifdef __ARCH_WANT_SYS_UTIME
+/*
+ * futimesat(), utimes() and utime() are older versions of utimensat()
+ * that are provided for compatibility with traditional C libraries.
+ * On modern architectures, we always use libc wrappers around
+ * utimensat() instead.
+ */
 static long do_futimesat(int dfd, const char __user *filename,
 			 struct timeval __user *utimes)
 {
@@ -225,13 +203,29 @@ SYSCALL_DEFINE2(utimes, char __user *, filename,
 	return do_futimesat(AT_FDCWD, filename, utimes);
 }
 
-#ifdef CONFIG_COMPAT
+SYSCALL_DEFINE2(utime, char __user *, filename, struct utimbuf __user *, times)
+{
+	struct timespec64 tv[2];
+
+	if (times) {
+		if (get_user(tv[0].tv_sec, &times->actime) ||
+		    get_user(tv[1].tv_sec, &times->modtime))
+			return -EFAULT;
+		tv[0].tv_nsec = 0;
+		tv[1].tv_nsec = 0;
+	}
+	return do_utimes(AT_FDCWD, filename, times ? tv : NULL, 0);
+}
+#endif
+
+#ifdef CONFIG_COMPAT_32BIT_TIME
 /*
  * Not all architectures have sys_utime, so implement this in terms
  * of sys_utimes.
  */
+#ifdef __ARCH_WANT_SYS_UTIME32
 COMPAT_SYSCALL_DEFINE2(utime, const char __user *, filename,
-		       struct compat_utimbuf __user *, t)
+		       struct old_utimbuf32 __user *, t)
 {
 	struct timespec64 tv[2];
 
@@ -244,14 +238,15 @@ COMPAT_SYSCALL_DEFINE2(utime, const char __user *, filename,
 	}
 	return do_utimes(AT_FDCWD, filename, t ? tv : NULL, 0);
 }
+#endif
 
-COMPAT_SYSCALL_DEFINE4(utimensat, unsigned int, dfd, const char __user *, filename, struct compat_timespec __user *, t, int, flags)
+COMPAT_SYSCALL_DEFINE4(utimensat, unsigned int, dfd, const char __user *, filename, struct old_timespec32 __user *, t, int, flags)
 {
 	struct timespec64 tv[2];
 
 	if  (t) {
-		if (compat_get_timespec64(&tv[0], &t[0]) ||
-		    compat_get_timespec64(&tv[1], &t[1]))
+		if (get_old_timespec32(&tv[0], &t[0]) ||
+		    get_old_timespec32(&tv[1], &t[1]))
 			return -EFAULT;
 
 		if (tv[0].tv_nsec == UTIME_OMIT && tv[1].tv_nsec == UTIME_OMIT)
@@ -260,8 +255,9 @@ COMPAT_SYSCALL_DEFINE4(utimensat, unsigned int, dfd, const char __user *, filena
 	return do_utimes(dfd, filename, t ? tv : NULL, flags);
 }
 
+#ifdef __ARCH_WANT_SYS_UTIME32
 static long do_compat_futimesat(unsigned int dfd, const char __user *filename,
-				struct compat_timeval __user *t)
+				struct old_timeval32 __user *t)
 {
 	struct timespec64 tv[2];
 
@@ -282,13 +278,14 @@ static long do_compat_futimesat(unsigned int dfd, const char __user *filename,
 
 COMPAT_SYSCALL_DEFINE3(futimesat, unsigned int, dfd,
 		       const char __user *, filename,
-		       struct compat_timeval __user *, t)
+		       struct old_timeval32 __user *, t)
 {
 	return do_compat_futimesat(dfd, filename, t);
 }
 
-COMPAT_SYSCALL_DEFINE2(utimes, const char __user *, filename, struct compat_timeval __user *, t)
+COMPAT_SYSCALL_DEFINE2(utimes, const char __user *, filename, struct old_timeval32 __user *, t)
 {
 	return do_compat_futimesat(AT_FDCWD, filename, t);
 }
 #endif
+#endif