From: Julien Thierry <jthierry@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: jpoimboe@redhat.com, peterz@infradead.org, raphael.gault@arm.com,
Julien Thierry <jthierry@redhat.com>
Subject: [PATCH 02/10] objtool: check: Remove redundant checks on operand type
Date: Wed, 25 Mar 2020 08:41:55 +0000 [thread overview]
Message-ID: <20200325084203.17005-3-jthierry@redhat.com> (raw)
In-Reply-To: <20200325084203.17005-1-jthierry@redhat.com>
POP operations are already in code path where destination operand
is OP_DEST_REG. There is no need to check the operand type again.
Signed-off-by: Julien Thierry <jthierry@redhat.com>
---
tools/objtool/check.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index a2c62bc82907..44a3abbb0b0b 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -1730,15 +1730,13 @@ static int update_insn_state(struct instruction *insn, struct insn_state *state)
case OP_SRC_POP:
case OP_SRC_POPF:
- if (!state->drap && op->dest.type == OP_DEST_REG &&
- op->dest.reg == cfa->base) {
+ if (!state->drap && op->dest.reg == cfa->base) {
/* pop %rbp */
cfa->base = CFI_SP;
}
if (state->drap && cfa->base == CFI_BP_INDIRECT &&
- op->dest.type == OP_DEST_REG &&
op->dest.reg == state->drap_reg &&
state->drap_offset == -state->stack_size) {
--
2.21.1
next prev parent reply other threads:[~2020-03-25 8:42 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-25 8:41 [PATCH 00/10] Objtool updates for easier portability Julien Thierry
2020-03-25 8:41 ` [PATCH 01/10] objtool: Move header sync-check ealier in build Julien Thierry
2020-03-25 8:41 ` Julien Thierry [this message]
2020-03-25 8:41 ` [PATCH 03/10] objtool: check: Clean instruction state before each function validation Julien Thierry
2020-03-25 8:41 ` [PATCH 04/10] objtool: check: Ignore empty alternative groups Julien Thierry
2020-03-25 8:41 ` [PATCH 05/10] objtool: check: Remove check preventing branches within alternative Julien Thierry
2020-03-25 8:41 ` [PATCH 06/10] objtool: check: Use arch specific values in restore_reg() Julien Thierry
2020-03-25 8:42 ` [PATCH 07/10] objtool: check: Allow save/restore hint in non standard function symbols Julien Thierry
2020-03-25 8:42 ` [PATCH 08/10] objtool: Add abstraction for computation of symbols offsets Julien Thierry
2020-03-25 8:42 ` [PATCH 09/10] objtool: Split generic and arch specific CFI definitions Julien Thierry
2020-03-25 8:42 ` [PATCH 10/10] objtool: Support multiple stack_op per instruction Julien Thierry
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