From f4f803984c3685f416a74e9e2fa7d39bdafbe02b Mon Sep 17 00:00:00 2001 From: Julien Thierry Date: Tue, 15 Sep 2020 08:53:16 +0100 Subject: [PATCH] objtool: Remove useless tests before save_reg() save_reg already checks that the register being saved does not already have a saved state. Remove redundant checks before processing a register storing operation. Signed-off-by: Julien Thierry Signed-off-by: Josh Poimboeuf --- tools/objtool/check.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/tools/objtool/check.c b/tools/objtool/check.c index 4e2f703b6a25..fd2edab8e672 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -2030,7 +2030,7 @@ static int update_cfi_state(struct instruction *insn, struct cfi_state *cfi, /* drap: push %rbp */ cfi->stack_size = 0; - } else if (regs[op->src.reg].base == CFI_UNDEFINED) { + } else { /* drap: push %reg */ save_reg(cfi, op->src.reg, CFI_BP, -cfi->stack_size); @@ -2059,9 +2059,7 @@ static int update_cfi_state(struct instruction *insn, struct cfi_state *cfi, /* save drap offset so we know when to restore it */ cfi->drap_offset = op->dest.offset; - } - - else if (regs[op->src.reg].base == CFI_UNDEFINED) { + } else { /* drap: mov reg, disp(%rbp) */ save_reg(cfi, op->src.reg, CFI_BP, op->dest.offset); -- GitLab