powerpc: fix giveup_vsx to save registers correctly

giveup_vsx didn't save the FPU and VMX regsiters.  Change it to be
like giveup_fpr/altivec which save these registers.

Also update call sites where FPU and VMX are already saved to use the
original giveup_vsx (renamed to __giveup_vsx).

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 4 insertions, 4 deletions

diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S
index 31b9026cf1e3..4dd70cf7bb4e 100644
--- a/arch/powerpc/kernel/misc_64.S
+++ b/arch/powerpc/kernel/misc_64.S
@@ -508,12 +508,12 @@ _GLOBAL(giveup_altivec)
 
 #ifdef CONFIG_VSX
 /*
- * giveup_vsx(tsk)
- * Disable VSX for the task given as the argument,
- * and save the vector registers in its thread_struct.
+ * __giveup_vsx(tsk)
+ * Disable VSX for the task given as the argument.
+ * Does NOT save vsx registers.
  * Enables the VSX for use in the kernel on return.
  */
-_GLOBAL(giveup_vsx)
+_GLOBAL(__giveup_vsx)
         mfmsr   r5
         oris    r5,r5,MSR_VSX@h
         mtmsrd  r5                      /* enable use of VSX now */