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Diffstat (limited to 'arch/powerpc/kernel/ptrace/ptrace-altivec.c')
-rw-r--r--arch/powerpc/kernel/ptrace/ptrace-altivec.c37
1 files changed, 12 insertions, 25 deletions
diff --git a/arch/powerpc/kernel/ptrace/ptrace-altivec.c b/arch/powerpc/kernel/ptrace/ptrace-altivec.c
index dd8b75dfbd06..0d9bc4bd4972 100644
--- a/arch/powerpc/kernel/ptrace/ptrace-altivec.c
+++ b/arch/powerpc/kernel/ptrace/ptrace-altivec.c
@@ -41,38 +41,25 @@ int vr_active(struct task_struct *target, const struct user_regset *regset)
* };
*/
int vr_get(struct task_struct *target, const struct user_regset *regset,
- unsigned int pos, unsigned int count, void *kbuf, void __user *ubuf)
+ struct membuf to)
{
- int ret;
+ union {
+ elf_vrreg_t reg;
+ u32 word;
+ } vrsave;
flush_altivec_to_thread(target);
BUILD_BUG_ON(offsetof(struct thread_vr_state, vscr) !=
offsetof(struct thread_vr_state, vr[32]));
- ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
- &target->thread.vr_state, 0,
- 33 * sizeof(vector128));
- if (!ret) {
- /*
- * Copy out only the low-order word of vrsave.
- */
- int start, end;
- union {
- elf_vrreg_t reg;
- u32 word;
- } vrsave;
- memset(&vrsave, 0, sizeof(vrsave));
-
- vrsave.word = target->thread.vrsave;
-
- start = 33 * sizeof(vector128);
- end = start + sizeof(vrsave);
- ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, &vrsave,
- start, end);
- }
-
- return ret;
+ membuf_write(&to, &target->thread.vr_state, 33 * sizeof(vector128));
+ /*
+ * Copy out only the low-order word of vrsave.
+ */
+ memset(&vrsave, 0, sizeof(vrsave));
+ vrsave.word = target->thread.vrsave;
+ return membuf_write(&to, &vrsave, sizeof(vrsave));
}
/*