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

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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()
  ...
This commit is contained in:
Linus Torvalds 2020-08-07 09:29:25 -07:00
commit 19b39c38ab
41 changed files with 1369 additions and 2348 deletions
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26
arch/openrisc/kernel/ptrace.c
View file

@ -44,29 +44,15 @@
*/
static int genregs_get(struct task_struct *target,
const struct user_regset *regset,
unsigned int pos, unsigned int count,
void *kbuf, void __user * ubuf)
struct membuf to)
{
const struct pt_regs *regs = task_pt_regs(target);
int ret;
/* r0 */
ret = user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf, 0, 4);
if (!ret)
ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
regs->gpr+1, 4, 4*32);
if (!ret)
ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
&regs->pc, 4*32, 4*33);
if (!ret)
ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
&regs->sr, 4*33, 4*34);
if (!ret)
ret = user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf,
4*34, -1);
return ret;
membuf_zero(&to, 4);
membuf_write(&to, regs->gpr + 1, 31 * 4);
membuf_store(&to, regs->pc);
return membuf_store(&to, regs->sr);
}
/*
@ -114,7 +100,7 @@ static const struct user_regset or1k_regsets[] = {
.n = ELF_NGREG,
.size = sizeof(long),
.align = sizeof(long),
.get = genregs_get,
.regset_get = genregs_get,
.set = genregs_set,
},
};