powerpc/64s: restore_math remove TM test

The TM test in restore_math added by commit dc16b553c949e ("powerpc:
Always restore FPU/VEC/VSX if hardware transactional memory in use") is
no longer necessary after commit a8318c13e79ba ("powerpc/tm: Fix
restoring FP/VMX facility incorrectly on interrupts"), which removed
the cases where restore_math has to restore if TM is active.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200623234139.2262227-1-npiggin@gmail.com

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 4650b9b..02d691b 100644 (file)
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -530,8 +530,7 @@ void notrace restore_math(struct pt_regs *regs)
 {
        unsigned long msr;
 
-       if (!MSR_TM_ACTIVE(regs->msr) &&
-               !current->thread.load_fp && !loadvec(current->thread))
+       if (!current->thread.load_fp && !loadvec(current->thread))
                return;
 
        msr = regs->msr;