RE: [PATCH] rtlwifi: rtl8192de: Restore channel index initialization

[Pkshih <pkshih@xxxxxxxxxxx>]

> -----Original Message-----
> From: Kees Cook [mailto:keescook@xxxxxxxxxxxx]
> Sent: Thursday, August 26, 2021 2:31 AM
> To: Pkshih
> Cc: Kees Cook; Kalle Valo; David S. Miller; Jakub Kicinski; Larry Finger; Colin Ian King; Kaixu Xia;
> Joe Perches; linux-wireless@xxxxxxxxxxxxxxx; netdev@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx;
> linux-hardening@xxxxxxxxxxxxxxx
> Subject: [PATCH] rtlwifi: rtl8192de: Restore channel index initialization
> 
> 2G channel indexes still need "place" to be initialized, since it is
> returned from this function when channel is less than 14.
> 
> Fixes: 369956ae5720 ("rtlwifi: rtl8192de: Remove redundant variable initializations")

Like the patch "rtlwifi: rtl8192de: Fix initialization of place in _rtl92c_phy_get_rightchnlplace()"
you sent before, please help to correct the removal of the commit 369956ae5720.
I think we can add following into this patch.

--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c
@@ -1363,7 +1363,7 @@ static void _rtl92d_phy_switch_rf_setting(struct ieee80211_hw *hw, u8 channel)

 u8 rtl92d_get_rightchnlplace_for_iqk(u8 chnl)
 {
-       u8 place = chnl;
+       u8 place;

        if (chnl > 14) {
                for (place = 14; place < sizeof(channel_all); place++) {

> Cc: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
> Cc: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
> Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
> Cc: Jakub Kicinski <kuba@xxxxxxxxxx>
> Cc: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
> Cc: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> Cc: Kaixu Xia <kaixuxia@xxxxxxxxxxx>
> Cc: Joe Perches <joe@xxxxxxxxxxx>
> Cc: linux-wireless@xxxxxxxxxxxxxxx
> Cc: netdev@xxxxxxxxxxxxxxx
> Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
> ---
>  drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c
> b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c
> index 8ae69d914312..b32fa7a75f17 100644
> --- a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c
> +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c
> @@ -896,7 +896,7 @@ static void _rtl92d_ccxpower_index_check(struct ieee80211_hw *hw,
> 
>  static u8 _rtl92c_phy_get_rightchnlplace(u8 chnl)
>  {
> -	u8 place;
> +	u8 place = chnl;
> 
>  	if (chnl > 14) {
>  		for (place = 14; place < sizeof(channel5g); place++) {

--
Ping-Ke