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
  ...

1 files changed, 1 insertions, 12 deletions

diff --git a/arch/ia64/lib/memcpy_mck.S b/arch/ia64/lib/memcpy_mck.S
index b264b6a..bbbadc4 100644
--- a/arch/ia64/lib/memcpy_mck.S
+++ b/arch/ia64/lib/memcpy_mck.S
@@ -556,9 +556,6 @@ EK(.ex_handler,  (p17)	st8	[dst1]=r39,8);						\
 #define D	r22
 #define F	r28
 
-#define memset_arg0	r32
-#define memset_arg2	r33
-
 #define saved_retval	loc0
 #define saved_rtlink	loc1
 #define saved_pfs_stack	loc2
@@ -622,7 +619,7 @@ EK(.ex_handler,  (p17)	st8	[dst1]=r39,8);						\
  * 	(faulting_addr - orig_dst)	-> len to faulting st address
  * B =	(cur_dst - orig_dst)		-> len copied so far
  * C =	A - B				-> len need to be copied
- * D =	orig_len - A			-> len need to be zeroed
+ * D =	orig_len - A			-> len need to be left along
  */
 (p6)	sub	A = F, saved_in0
 (p7)	sub	A = F, saved_in1
@@ -638,9 +635,6 @@ EK(.ex_handler,  (p17)	st8	[dst1]=r39,8);						\
 	sub	D = saved_in2, A
 	;;
 	cmp.gt	p8,p0=C,r0		// more than 1 byte?
-	add	memset_arg0=saved_in0, A
-(p6)	mov	memset_arg2=0		// copy_to_user should not call memset
-(p7)	mov	memset_arg2=D		// copy_from_user need to have kbuf zeroed
 	mov	r8=0
 	mov	saved_retval = D
 	mov	saved_rtlink = b0
@@ -652,11 +646,6 @@ EK(.ex_handler,  (p17)	st8	[dst1]=r39,8);						\
 	;;
 
 	add	saved_retval=saved_retval,r8	// above might return non-zero value
-	cmp.gt	p8,p0=memset_arg2,r0	// more than 1 byte?
-	mov	out0=memset_arg0	// *s
-	mov	out1=r0			// c
-	mov	out2=memset_arg2	// n
-(p8)	br.call.sptk.few b0=memset
 	;;
 
 	mov	retval=saved_retval