Re: [PATCH] staging: rtl8723bs: remove some 5 GHz code

From: Hans de Goede
Date: Mon Jun 16 2025 - 06:52:36 EST


Hi,

On 15-Jun-25 14:38, Michael Straube wrote:
> Chips that use this driver are 2.4 GHz only. Remove some code that is
> executed only for 5 GHz (channel > 14) . This addresses the following
> TODO item:
>
> - find and remove any code for other chips that is left over
>
> Signed-off-by: Michael Straube <straube.linux@xxxxxxxxx>

Thanks, patch looks good to me:

Reviewed-by: Hans de Goede <hansg@xxxxxxxxxx>

Regards,

Hans




> ---
> Compile tested only, due to lack of hardware.
>
> drivers/staging/rtl8723bs/core/rtw_ap.c | 9 ++-------
> drivers/staging/rtl8723bs/core/rtw_mlme.c | 18 ++++--------------
> drivers/staging/rtl8723bs/core/rtw_wlan_util.c | 9 ++-------
> 3 files changed, 8 insertions(+), 28 deletions(-)
>
> diff --git a/drivers/staging/rtl8723bs/core/rtw_ap.c b/drivers/staging/rtl8723bs/core/rtw_ap.c
> index 383a6f7c06f4..b2e7e7267aa4 100644
> --- a/drivers/staging/rtl8723bs/core/rtw_ap.c
> +++ b/drivers/staging/rtl8723bs/core/rtw_ap.c
> @@ -741,13 +741,8 @@ void start_bss_network(struct adapter *padapter)
> if (p && ie_len) {
> pht_info = (struct HT_info_element *)(p + 2);
>
> - if (cur_channel > 14) {
> - if ((pregpriv->bw_mode & 0xf0) > 0)
> - cbw40_enable = 1;
> - } else {
> - if ((pregpriv->bw_mode & 0x0f) > 0)
> - cbw40_enable = 1;
> - }
> + if ((pregpriv->bw_mode & 0x0f) > 0)
> + cbw40_enable = 1;
>
> if ((cbw40_enable) && (pht_info->infos[0] & BIT(2))) {
> /* switch to the 40M Hz mode */
> diff --git a/drivers/staging/rtl8723bs/core/rtw_mlme.c b/drivers/staging/rtl8723bs/core/rtw_mlme.c
> index 1d23ea7d6f59..0b0ee023a239 100644
> --- a/drivers/staging/rtl8723bs/core/rtw_mlme.c
> +++ b/drivers/staging/rtl8723bs/core/rtw_mlme.c
> @@ -2252,13 +2252,8 @@ unsigned int rtw_restructure_ht_ie(struct adapter *padapter, u8 *in_ie, u8 *out_
> }
>
> /* to disable 40M Hz support while gd_bw_40MHz_en = 0 */
> - if (channel > 14) {
> - if ((pregistrypriv->bw_mode & 0xf0) > 0)
> - cbw40_enable = 1;
> - } else {
> - if ((pregistrypriv->bw_mode & 0x0f) > 0)
> - cbw40_enable = 1;
> - }
> + if ((pregistrypriv->bw_mode & 0x0f) > 0)
> + cbw40_enable = 1;
>
> if ((cbw40_enable == 1) && (operation_bw == CHANNEL_WIDTH_40)) {
> ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH);
> @@ -2366,13 +2361,8 @@ void rtw_update_ht_cap(struct adapter *padapter, u8 *pie, uint ie_len, u8 channe
> /* todo: */
> }
>
> - if (channel > 14) {
> - if ((pregistrypriv->bw_mode & 0xf0) > 0)
> - cbw40_enable = 1;
> - } else {
> - if ((pregistrypriv->bw_mode & 0x0f) > 0)
> - cbw40_enable = 1;
> - }
> + if ((pregistrypriv->bw_mode & 0x0f) > 0)
> + cbw40_enable = 1;
>
> /* update cur_bwmode & cur_ch_offset */
> if ((cbw40_enable) &&
> diff --git a/drivers/staging/rtl8723bs/core/rtw_wlan_util.c b/drivers/staging/rtl8723bs/core/rtw_wlan_util.c
> index 73c70b016f00..0c6072d08661 100644
> --- a/drivers/staging/rtl8723bs/core/rtw_wlan_util.c
> +++ b/drivers/staging/rtl8723bs/core/rtw_wlan_util.c
> @@ -854,13 +854,8 @@ static void bwmode_update_check(struct adapter *padapter, struct ndis_80211_var_
>
> pHT_info = (struct HT_info_element *)pIE->data;
>
> - if (pmlmeext->cur_channel > 14) {
> - if ((pregistrypriv->bw_mode & 0xf0) > 0)
> - cbw40_enable = 1;
> - } else {
> - if ((pregistrypriv->bw_mode & 0x0f) > 0)
> - cbw40_enable = 1;
> - }
> + if ((pregistrypriv->bw_mode & 0x0f) > 0)
> + cbw40_enable = 1;
>
> if ((pHT_info->infos[0] & BIT(2)) && cbw40_enable) {
> new_bwmode = CHANNEL_WIDTH_40;