Merge tag 'asm-generic' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull asm-generic updates from Arnd Bergmann:
 "This has three changes for asm-generic that did not really fit into
  any other branch as normal asm-generic changes do.  One is a fix for a
  build warning, the other two are more interesting:

   * A patch from Mark Brown to allow using the common clock
     infrastructure on all architectures, so we can use the clock API in
     architecture independent device drivers.

   * The UAPI split patches from David Howells for the asm-generic
     files.  There are other architecture specific series that are going
     through the arch maintainer tree and that depend on this one.

  There may be a few small merge conflicts between Mark's patch and the
  following arch header file split patches.  In each case the solution
  will be to keep the new "generic-y += clkdev.h" line, even if it ends
  up being the only line in the Kbuild file."

* tag 'asm-generic' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  UAPI: (Scripted) Disintegrate include/asm-generic
  asm-generic: Add default clkdev.h
  asm-generic: xor: mark static functions as __maybe_unused

1 files changed, 38 insertions, 0 deletions

diff --git a/include/uapi/asm-generic/sembuf.h b/include/uapi/asm-generic/sembuf.h
new file mode 100644
index 000000000000..4cb2c13e5090
--- /dev/null
+++ b/include/uapi/asm-generic/sembuf.h
@@ -0,0 +1,38 @@
+#ifndef __ASM_GENERIC_SEMBUF_H
+#define __ASM_GENERIC_SEMBUF_H
+
+#include <asm/bitsperlong.h>
+
+/*
+ * The semid64_ds structure for x86 architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * semid64_ds was originally meant to be architecture specific, but
+ * everyone just ended up making identical copies without specific
+ * optimizations, so we may just as well all use the same one.
+ *
+ * 64 bit architectures typically define a 64 bit __kernel_time_t,
+ * so they do not need the first two padding words.
+ * On big-endian systems, the padding is in the wrong place.
+ *
+ * Pad space is left for:
+ * - 64-bit time_t to solve y2038 problem
+ * - 2 miscellaneous 32-bit values
+ */
+struct semid64_ds {
+	struct ipc64_perm sem_perm;	/* permissions .. see ipc.h */
+	__kernel_time_t	sem_otime;	/* last semop time */
+#if __BITS_PER_LONG != 64
+	unsigned long	__unused1;
+#endif
+	__kernel_time_t	sem_ctime;	/* last change time */
+#if __BITS_PER_LONG != 64
+	unsigned long	__unused2;
+#endif
+	unsigned long	sem_nsems;	/* no. of semaphores in array */
+	unsigned long	__unused3;
+	unsigned long	__unused4;
+};
+
+#endif /* __ASM_GENERIC_SEMBUF_H */