Re: [PATCH] rtw89: rtw89_ser: add const to struct state_ent and event_ent

From: Pkshih
Date: Thu Apr 07 2022 - 20:17:13 EST


On Thu, 2022-04-07 at 13:14 -0700, Joe Perches wrote:
> Change the struct and the uses to const to reduce data.
>
> $ size drivers/net/wireless/realtek/rtw89/ser.o* (x86-64 defconfig w/ rtw89)
> text data bss dec hex filename
> 3741 8 0 3749 ea5 drivers/net/wireless/realtek/rtw89/ser.o.new
> 3437 312 0 3749 ea5 drivers/net/wireless/realtek/rtw89/ser.o.old
>
> Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>

Acked-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx>

Thank you.

> ---
> drivers/net/wireless/realtek/rtw89/core.h | 4 ++--
> drivers/net/wireless/realtek/rtw89/ser.c | 4 ++--
> 2 files changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h
> index 771722132c53b..9bf56ce5ab43f 100644
> --- a/drivers/net/wireless/realtek/rtw89/core.h
> +++ b/drivers/net/wireless/realtek/rtw89/core.h
> @@ -2853,8 +2853,8 @@ struct rtw89_ser {
>
> struct work_struct ser_hdl_work;
> struct delayed_work ser_alarm_work;
> - struct state_ent *st_tbl;
> - struct event_ent *ev_tbl;
> + const struct state_ent *st_tbl;
> + const struct event_ent *ev_tbl;
> struct list_head msg_q;
> spinlock_t msg_q_lock; /* lock when read/write ser msg */
> DECLARE_BITMAP(flags, RTW89_NUM_OF_SER_FLAGS);
> diff --git a/drivers/net/wireless/realtek/rtw89/ser.c b/drivers/net/wireless/realtek/rtw89/ser.c
> index 837cdc366a61a..7fbda7ef96bbb 100644
> --- a/drivers/net/wireless/realtek/rtw89/ser.c
> +++ b/drivers/net/wireless/realtek/rtw89/ser.c
> @@ -396,7 +396,7 @@ static void ser_l2_reset_st_hdl(struct rtw89_ser *ser, u8 evt)
> }
> }
>
> -static struct event_ent ser_ev_tbl[] = {
> +static const struct event_ent ser_ev_tbl[] = {
> {SER_EV_NONE, "SER_EV_NONE"},
> {SER_EV_STATE_IN, "SER_EV_STATE_IN"},
> {SER_EV_STATE_OUT, "SER_EV_STATE_OUT"},
> @@ -412,7 +412,7 @@ static struct event_ent ser_ev_tbl[] = {
> {SER_EV_MAXX, "SER_EV_MAX"}
> };
>
> -static struct state_ent ser_st_tbl[] = {
> +static const struct state_ent ser_st_tbl[] = {
> {SER_IDLE_ST, "SER_IDLE_ST", ser_idle_st_hdl},
> {SER_RESET_TRX_ST, "SER_RESET_TRX_ST", ser_reset_trx_st_hdl},
> {SER_DO_HCI_ST, "SER_DO_HCI_ST", ser_do_hci_st_hdl},
>
>
> ------Please consider the environment before printing this e-mail.