Merge branch 'work.uaccess' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull uaccess unification updates from Al Viro:
 "This is the uaccess unification pile. It's _not_ the end of uaccess
  work, but the next batch of that will go into the next cycle. This one
  mostly takes copy_from_user() and friends out of arch/* and gets the
  zero-padding behaviour in sync for all architectures.

  Dealing with the nocache/writethrough mess is for the next cycle;
  fortunately, that's x86-only. Same for cleanups in iov_iter.c (I am
  sold on access_ok() in there, BTW; just not in this pile), same for
  reducing __copy_... callsites, strn*... stuff, etc. - there will be a
  pile about as large as this one in the next merge window.

  This one sat in -next for weeks. -3KLoC"

* 'work.uaccess' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (96 commits)
  HAVE_ARCH_HARDENED_USERCOPY is unconditional now
  CONFIG_ARCH_HAS_RAW_COPY_USER is unconditional now
  m32r: switch to RAW_COPY_USER
  hexagon: switch to RAW_COPY_USER
  microblaze: switch to RAW_COPY_USER
  get rid of padding, switch to RAW_COPY_USER
  ia64: get rid of copy_in_user()
  ia64: sanitize __access_ok()
  ia64: get rid of 'segment' argument of __do_{get,put}_user()
  ia64: get rid of 'segment' argument of __{get,put}_user_check()
  ia64: add extable.h
  powerpc: get rid of zeroing, switch to RAW_COPY_USER
  esas2r: don't open-code memdup_user()
  alpha: fix stack smashing in old_adjtimex(2)
  don't open-code kernel_setsockopt()
  mips: switch to RAW_COPY_USER
  mips: get rid of tail-zeroing in primitives
  mips: make copy_from_user() zero tail explicitly
  mips: clean and reorder the forest of macros...
  mips: consolidate __invoke_... wrappers
  ...

diff --cc arch/mips/Kconfig
Simple merge

diff --cc arch/parisc/include/asm/uaccess.h
Simple merge

diff --cc arch/s390/include/asm/uaccess.h
Simple merge

diff --cc arch/sparc/Kconfig
index 3db2543733a5874f7a8a5e76275eb505cc1c3db3,b577dbff5efbf2b47b65b3a83f77879d2f4951ba..ed96869c4101db43608e0e1811c76eb12f15f408
--- 1/arch/sparc/Kconfig
--- 2/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@@ -42,8 -42,7 +42,7 @@@ config SPAR
        select OLD_SIGSUSPEND
        select ARCH_HAS_SG_CHAIN
        select CPU_NO_EFFICIENT_FFS
-       select HAVE_ARCH_HARDENED_USERCOPY
 -      select PROVE_LOCKING_SMALL if PROVE_LOCKING
 +      select LOCKDEP_SMALL if LOCKDEP
        select ARCH_WANT_RELAX_ORDER
  
  config SPARC32

diff --cc block/bsg.c
Simple merge

diff --cc drivers/scsi/sg.c
Simple merge

diff --cc lib/iov_iter.c
Simple merge