From cfbc0723d18f5aeab4308c66d7d1992317eed7c9 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Tue, 28 Jun 2022 00:02:31 +1000 Subject: [PATCH] selftests/powerpc: Don't save TOC by default in asm helpers Thare are some asm helpers for creating/popping stack frames in basic_asm.h. They always save/restore r2 (TOC pointer), but none of the selftests change r2, so it's unnecessary to save it by default. Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220627140239.2464900-5-mpe@ellerman.id.au --- tools/testing/selftests/powerpc/include/basic_asm.h | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/tools/testing/selftests/powerpc/include/basic_asm.h b/tools/testing/selftests/powerpc/include/basic_asm.h index faec7b11c041..be380aa779f8 100644 --- a/tools/testing/selftests/powerpc/include/basic_asm.h +++ b/tools/testing/selftests/powerpc/include/basic_asm.h @@ -58,11 +58,9 @@ #define PUSH_BASIC_STACK(_extra) \ mflr r0; \ std r0, STACK_FRAME_LR_POS(%r1); \ - stdu %r1, -(((_extra + 15) & ~15) + STACK_FRAME_MIN_SIZE)(%r1); \ - std %r2, STACK_FRAME_TOC_POS(%r1); + stdu %r1, -(((_extra + 15) & ~15) + STACK_FRAME_MIN_SIZE)(%r1); #define POP_BASIC_STACK(_extra) \ - ld %r2, STACK_FRAME_TOC_POS(%r1); \ addi %r1, %r1, (((_extra + 15) & ~15) + STACK_FRAME_MIN_SIZE); \ ld r0, STACK_FRAME_LR_POS(%r1); \ mtlr r0;