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-rw-r--r--tools/objtool/arch/x86/decode.c4
-rw-r--r--tools/objtool/check.c11
-rw-r--r--tools/objtool/include/objtool/arch.h2
-rw-r--r--tools/objtool/include/objtool/check.h2
4 files changed, 9 insertions, 10 deletions
diff --git a/tools/objtool/arch/x86/decode.c b/tools/objtool/arch/x86/decode.c
index c5c49277cf1a..9ef024fd648c 100644
--- a/tools/objtool/arch/x86/decode.c
+++ b/tools/objtool/arch/x86/decode.c
@@ -105,7 +105,7 @@ bool arch_pc_relative_reloc(struct reloc *reloc)
#define ADD_OP(op) \
if (!(op = calloc(1, sizeof(*op)))) \
return -1; \
- else for (list_add_tail(&op->list, ops_list); op; op = NULL)
+ else for (*ops_list = op, ops_list = &op->next; op; op = NULL)
/*
* Helpers to decode ModRM/SIB:
@@ -148,7 +148,7 @@ int arch_decode_instruction(struct objtool_file *file, const struct section *sec
unsigned long offset, unsigned int maxlen,
struct instruction *insn)
{
- struct list_head *ops_list = &insn->stack_ops;
+ struct stack_op **ops_list = &insn->stack_ops;
const struct elf *elf = file->elf;
struct insn ins;
int x86_64, ret;
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index b3b423d33cc2..8109d7405297 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -398,7 +398,6 @@ static int decode_instructions(struct objtool_file *file)
}
memset(insn, 0, sizeof(*insn));
INIT_LIST_HEAD(&insn->alts);
- INIT_LIST_HEAD(&insn->stack_ops);
INIT_LIST_HEAD(&insn->call_node);
insn->sec = sec;
@@ -1331,12 +1330,13 @@ static struct reloc *insn_reloc(struct objtool_file *file, struct instruction *i
static void remove_insn_ops(struct instruction *insn)
{
- struct stack_op *op, *tmp;
+ struct stack_op *op, *next;
- list_for_each_entry_safe(op, tmp, &insn->stack_ops, list) {
- list_del(&op->list);
+ for (op = insn->stack_ops; op; op = next) {
+ next = op->next;
free(op);
}
+ insn->stack_ops = NULL;
}
static void annotate_call_site(struct objtool_file *file,
@@ -1781,7 +1781,6 @@ static int handle_group_alt(struct objtool_file *file,
}
memset(nop, 0, sizeof(*nop));
INIT_LIST_HEAD(&nop->alts);
- INIT_LIST_HEAD(&nop->stack_ops);
nop->sec = special_alt->new_sec;
nop->offset = special_alt->new_off + special_alt->new_len;
@@ -3226,7 +3225,7 @@ static int handle_insn_ops(struct instruction *insn,
{
struct stack_op *op;
- list_for_each_entry(op, &insn->stack_ops, list) {
+ for (op = insn->stack_ops; op; op = op->next) {
if (update_cfi_state(insn, next_insn, &state->cfi, op))
return 1;
diff --git a/tools/objtool/include/objtool/arch.h b/tools/objtool/include/objtool/arch.h
index 73149f8090fa..2b6d2ce4f9a5 100644
--- a/tools/objtool/include/objtool/arch.h
+++ b/tools/objtool/include/objtool/arch.h
@@ -62,9 +62,9 @@ struct op_src {
};
struct stack_op {
+ struct stack_op *next;
struct op_dest dest;
struct op_src src;
- struct list_head list;
};
struct instruction;
diff --git a/tools/objtool/include/objtool/check.h b/tools/objtool/include/objtool/check.h
index acd7fae59348..23e981999365 100644
--- a/tools/objtool/include/objtool/check.h
+++ b/tools/objtool/include/objtool/check.h
@@ -68,7 +68,7 @@ struct instruction {
struct reloc *reloc;
struct list_head alts;
struct symbol *sym;
- struct list_head stack_ops;
+ struct stack_op *stack_ops;
struct cfi_state *cfi;
};