powerpc: Remove fpscr use from [kvm_]cvt_{fd,df}

Neither lfs nor stfs touch the fpscr, so remove the restore/save of it
around them.

Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 0 insertions, 10 deletions

diff --git a/arch/powerpc/kernel/fpu.S b/arch/powerpc/kernel/fpu.S
index fc8f5b14019c..e86c040ae585 100644
--- a/arch/powerpc/kernel/fpu.S
+++ b/arch/powerpc/kernel/fpu.S
@@ -163,24 +163,14 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX)
 /*
  * These are used in the alignment trap handler when emulating
  * single-precision loads and stores.
- * We restore and save the fpscr so the task gets the same result
- * and exceptions as if the cpu had performed the load or store.
  */
 
 _GLOBAL(cvt_fd)
-        lfd     0,THREAD_FPSCR(r5)      /* load up fpscr value */
-        MTFSF_L(0)
         lfs     0,0(r3)
         stfd    0,0(r4)
-        mffs    0
-        stfd    0,THREAD_FPSCR(r5)      /* save new fpscr value */
         blr
 
 _GLOBAL(cvt_df)
-        lfd     0,THREAD_FPSCR(r5)      /* load up fpscr value */
-        MTFSF_L(0)
         lfd     0,0(r3)
         stfs    0,0(r4)
-        mffs    0
-        stfd    0,THREAD_FPSCR(r5)      /* save new fpscr value */
         blr