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

Pull ptrace regset updates from Al Viro:
 "Internal regset API changes:

   - regularize copy_regset_{to,from}_user() callers

   - switch to saner calling conventions for ->get()

   - kill user_regset_copyout()

  The ->put() side of things will have to wait for the next cycle,
  unfortunately.

  The balance is about -1KLoC and replacements for ->get() instances are
  a lot saner"

* 'work.regset' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (41 commits)
  regset: kill user_regset_copyout{,_zero}()
  regset(): kill ->get_size()
  regset: kill ->get()
  csky: switch to ->regset_get()
  xtensa: switch to ->regset_get()
  parisc: switch to ->regset_get()
  nds32: switch to ->regset_get()
  nios2: switch to ->regset_get()
  hexagon: switch to ->regset_get()
  h8300: switch to ->regset_get()
  openrisc: switch to ->regset_get()
  riscv: switch to ->regset_get()
  c6x: switch to ->regset_get()
  ia64: switch to ->regset_get()
  arc: switch to ->regset_get()
  arm: switch to ->regset_get()
  sh: convert to ->regset_get()
  arm64: switch to ->regset_get()
  mips: switch to ->regset_get()
  sparc: switch to ->regset_get()
  ...

1 files changed, 4 insertions, 5 deletions

diff --git a/arch/nds32/kernel/ptrace.c b/arch/nds32/kernel/ptrace.c
index eaaf7a999b20..d0eda870fbc2 100644
--- a/arch/nds32/kernel/ptrace.c
+++ b/arch/nds32/kernel/ptrace.c
@@ -13,11 +13,10 @@ enum nds32_regset {
 
 static int gpr_get(struct task_struct *target,
 		   const struct user_regset *regset,
-		   unsigned int pos, unsigned int count,
-		   void *kbuf, void __user * ubuf)
+		   struct membuf to)
 {
-	struct user_pt_regs *uregs = &task_pt_regs(target)->user_regs;
-	return user_regset_copyout(&pos, &count, &kbuf, &ubuf, uregs, 0, -1);
+	return membuf_write(&to, &task_pt_regs(target)->user_regs,
+				sizeof(struct user_pt_regs));
 }
 
 static int gpr_set(struct task_struct *target, const struct user_regset *regset,
@@ -41,7 +40,7 @@ static const struct user_regset nds32_regsets[] = {
 			.n = sizeof(struct user_pt_regs) / sizeof(u32),
 			.size = sizeof(elf_greg_t),
 			.align = sizeof(elf_greg_t),
-			.get = gpr_get,
+			.regset_get = gpr_get,
 			.set = gpr_set}
 };