Re: [PATCH] rtlwifi: remove duplicate code

From: Joe Perches
Date: Fri May 25 2018 - 07:01:11 EST


On Thu, 2018-05-24 at 13:54 -0500, Gustavo A. R. Silva wrote:
> Remove and refactor some code in order to avoid having identical code
> for different branches.

True and nice tool and patch submittal thanks.

> Notice that the logic has been there since 2014.

But perhaps the original logic is a defective copy/paste
and it should be corrected instead.

Can anyone from realtek verify this?

> Addresses-Coverity-ID: 1426199 ("Identical code for different branches")
> Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>
> ---
> .../realtek/rtlwifi/btcoexist/halbtc8723b2ant.c | 23 ++++------------------
> 1 file changed, 4 insertions(+), 19 deletions(-)
>
> diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c
> index 279fe01..df3facc 100644
> --- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c
> +++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c
> @@ -2876,25 +2876,10 @@ static void btc8723b2ant_action_hid(struct btc_coexist *btcoexist)
> btc8723b2ant_ps_tdma(btcoexist, NORMAL_EXEC, true, 13);
>
> /* sw mechanism */
> - if (BTC_WIFI_BW_HT40 == wifi_bw) {
> - if ((wifi_rssi_state == BTC_RSSI_STATE_HIGH) ||
> - (wifi_rssi_state == BTC_RSSI_STATE_STAY_HIGH)) {
> - btc8723b2ant_sw_mechanism(btcoexist, true, true,
> - false, false);
> - } else {
> - btc8723b2ant_sw_mechanism(btcoexist, true, true,
> - false, false);
> - }
> - } else {
> - if ((wifi_rssi_state == BTC_RSSI_STATE_HIGH) ||
> - (wifi_rssi_state == BTC_RSSI_STATE_STAY_HIGH)) {
> - btc8723b2ant_sw_mechanism(btcoexist, false, true,
> - false, false);
> - } else {
> - btc8723b2ant_sw_mechanism(btcoexist, false, true,
> - false, false);
> - }
> - }
> + if (wifi_bw == BTC_WIFI_BW_HT40)
> + btc8723b2ant_sw_mechanism(btcoexist, true, true, false, false);
> + else
> + btc8723b2ant_sw_mechanism(btcoexist, false, true, false, false);
> }
>
> /* A2DP only / PAN(EDR) only/ A2DP+PAN(HS) */