2024-01-19 04:01:07

by alexs

[permalink] [raw]
Subject: [PATCH] objtool: remove unused parameter

From: Alex Shi <[email protected]>

Remove unused file parameter from init_insn_state(), insn from
has_modified_stack_frame().

Signed-off-by: Alex Shi <[email protected]>
To: [email protected]
To: Peter Zijlstra <[email protected]>
To: Josh Poimboeuf <[email protected]>
---
tools/objtool/check.c | 13 ++++++-------
1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 548ec3cd7c00..ecc56a5ad174 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -274,8 +274,7 @@ static void init_cfi_state(struct cfi_state *cfi)
cfi->drap_offset = -1;
}

-static void init_insn_state(struct objtool_file *file, struct insn_state *state,
- struct section *sec)
+static void init_insn_state(struct insn_state *state, struct section *sec)
{
memset(state, 0, sizeof(*state));
init_cfi_state(&state->cfi);
@@ -2681,7 +2680,7 @@ static bool is_special_call(struct instruction *insn)
return false;
}

-static bool has_modified_stack_frame(struct instruction *insn, struct insn_state *state)
+static bool has_modified_stack_frame(struct insn_state *state)
{
struct cfi_state *cfi = &state->cfi;
int i;
@@ -3474,7 +3473,7 @@ static int validate_sibling_call(struct objtool_file *file,
struct instruction *insn,
struct insn_state *state)
{
- if (insn_func(insn) && has_modified_stack_frame(insn, state)) {
+ if (insn_func(insn) && has_modified_stack_frame(state)) {
WARN_INSN(insn, "sibling call from callable instruction with modified stack frame");
return 1;
}
@@ -3504,7 +3503,7 @@ static int validate_return(struct symbol *func, struct instruction *insn, struct
return 1;
}

- if (func && has_modified_stack_frame(insn, state)) {
+ if (func && has_modified_stack_frame(state)) {
WARN_INSN(insn, "return with modified stack frame");
return 1;
}
@@ -3814,7 +3813,7 @@ static int validate_unwind_hints(struct objtool_file *file, struct section *sec)
if (!file->hints)
return 0;

- init_insn_state(file, &state, sec);
+ init_insn_state(&state, sec);

if (sec) {
sec_for_each_insn(file, sec, insn)
@@ -4221,7 +4220,7 @@ static int validate_section(struct objtool_file *file, struct section *sec)
if (func->type != STT_FUNC)
continue;

- init_insn_state(file, &state, sec);
+ init_insn_state(&state, sec);
set_func_state(&state.cfi);

warnings += validate_symbol(file, sec, func, &state);
--
2.43.0



2024-02-01 11:58:57

by Alex Shi

[permalink] [raw]
Subject: Re: [PATCH] objtool: remove unused parameter

ping

On 1/19/24 12:02 PM, [email protected] wrote:
> From: Alex Shi <[email protected]>
>
> Remove unused file parameter from init_insn_state(), insn from
> has_modified_stack_frame().
>
> Signed-off-by: Alex Shi <[email protected]>
> To: [email protected]
> To: Peter Zijlstra <[email protected]>
> To: Josh Poimboeuf <[email protected]>
> ---
> tools/objtool/check.c | 13 ++++++-------
> 1 file changed, 6 insertions(+), 7 deletions(-)
>
> diff --git a/tools/objtool/check.c b/tools/objtool/check.c
> index 548ec3cd7c00..ecc56a5ad174 100644
> --- a/tools/objtool/check.c
> +++ b/tools/objtool/check.c
> @@ -274,8 +274,7 @@ static void init_cfi_state(struct cfi_state *cfi)
> cfi->drap_offset = -1;
> }
>
> -static void init_insn_state(struct objtool_file *file, struct insn_state *state,
> - struct section *sec)
> +static void init_insn_state(struct insn_state *state, struct section *sec)
> {
> memset(state, 0, sizeof(*state));
> init_cfi_state(&state->cfi);
> @@ -2681,7 +2680,7 @@ static bool is_special_call(struct instruction *insn)
> return false;
> }
>
> -static bool has_modified_stack_frame(struct instruction *insn, struct insn_state *state)
> +static bool has_modified_stack_frame(struct insn_state *state)
> {
> struct cfi_state *cfi = &state->cfi;
> int i;
> @@ -3474,7 +3473,7 @@ static int validate_sibling_call(struct objtool_file *file,
> struct instruction *insn,
> struct insn_state *state)
> {
> - if (insn_func(insn) && has_modified_stack_frame(insn, state)) {
> + if (insn_func(insn) && has_modified_stack_frame(state)) {
> WARN_INSN(insn, "sibling call from callable instruction with modified stack frame");
> return 1;
> }
> @@ -3504,7 +3503,7 @@ static int validate_return(struct symbol *func, struct instruction *insn, struct
> return 1;
> }
>
> - if (func && has_modified_stack_frame(insn, state)) {
> + if (func && has_modified_stack_frame(state)) {
> WARN_INSN(insn, "return with modified stack frame");
> return 1;
> }
> @@ -3814,7 +3813,7 @@ static int validate_unwind_hints(struct objtool_file *file, struct section *sec)
> if (!file->hints)
> return 0;
>
> - init_insn_state(file, &state, sec);
> + init_insn_state(&state, sec);
>
> if (sec) {
> sec_for_each_insn(file, sec, insn)
> @@ -4221,7 +4220,7 @@ static int validate_section(struct objtool_file *file, struct section *sec)
> if (func->type != STT_FUNC)
> continue;
>
> - init_insn_state(file, &state, sec);
> + init_insn_state(&state, sec);
> set_func_state(&state.cfi);
>
> warnings += validate_symbol(file, sec, func, &state);