From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org
Cc: Shreyansh Chouhan <chouhan.shreyansh630@gmail.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.10.y 07/10] staging: rtl8723bs: refactor to reduce indents
Date: Tue, 14 Jul 2026 22:46:03 -0400 [thread overview]
Message-ID: <20260715024606.107096-7-sashal@kernel.org> (raw)
In-Reply-To: <20260715024606.107096-1-sashal@kernel.org>
From: Shreyansh Chouhan <chouhan.shreyansh630@gmail.com>
[ Upstream commit 3c8c577fd2fcf3587f16a2a9e8174c9f849cb7a6 ]
Reduce the number of indents in rtw_wlan_util.c file by refactoring the
code.
Moved the part of code that rearranged ac paramaters in the function
WMMOnAssocResp to a separate function named sort_wmm_ac_params. It takes
both the array of ac params and their indexes as arguments and sorts them.
Has return type void.
Moved the part of code that checked IE for realtek vendor in the
function check_assoc_AP to a separate function named
get_realtek_assoc_AP_vender. It takes a struct ndis_80211_var_ie * as an
argument and returns u32 realtek vendor.
Signed-off-by: Shreyansh Chouhan <chouhan.shreyansh630@gmail.com>
Link: https://lore.kernel.org/r/20210524135105.5550-2-chouhan.shreyansh630@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 3bf39f711ff2 ("staging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../staging/rtl8723bs/core/rtw_wlan_util.c | 108 +++++++++---------
1 file changed, 56 insertions(+), 52 deletions(-)
diff --git a/drivers/staging/rtl8723bs/core/rtw_wlan_util.c b/drivers/staging/rtl8723bs/core/rtw_wlan_util.c
index e93bf08225d2cf..836eef6397c0ba 100644
--- a/drivers/staging/rtl8723bs/core/rtw_wlan_util.c
+++ b/drivers/staging/rtl8723bs/core/rtw_wlan_util.c
@@ -775,6 +775,32 @@ int WMM_param_handler(struct adapter *padapter, struct ndis_80211_var_ie *pIE)
return true;
}
+static void sort_wmm_ac_params(u32 *inx, u32 *edca)
+{
+ u32 i, j, change_inx = false;
+
+ /* entry indx: 0->vo, 1->vi, 2->be, 3->bk. */
+ for (i = 0; i < 4; i++) {
+ for (j = i + 1; j < 4; j++) {
+ /* compare CW and AIFS */
+ if ((edca[j] & 0xFFFF) < (edca[i] & 0xFFFF)) {
+ change_inx = true;
+ } else if ((edca[j] & 0xFFFF) == (edca[i] & 0xFFFF)) {
+ /* compare TXOP */
+ if ((edca[j] >> 16) > (edca[i] >> 16))
+ change_inx = true;
+ }
+
+ if (change_inx) {
+ swap(edca[i], edca[j]);
+ swap(inx[i], inx[j]);
+
+ change_inx = false;
+ }
+ }
+ }
+}
+
void WMMOnAssocRsp(struct adapter *padapter)
{
u8 ACI, ACM, AIFS, ECWMin, ECWMax, aSifsTime;
@@ -871,35 +897,8 @@ void WMMOnAssocRsp(struct adapter *padapter)
inx[0] = 0; inx[1] = 1; inx[2] = 2; inx[3] = 3;
- if (pregpriv->wifi_spec == 1) {
- u32 j, tmp, change_inx = false;
-
- /* entry indx: 0->vo, 1->vi, 2->be, 3->bk. */
- for (i = 0; i < 4; i++) {
- for (j = i+1; j < 4; j++) {
- /* compare CW and AIFS */
- if ((edca[j] & 0xFFFF) < (edca[i] & 0xFFFF)) {
- change_inx = true;
- } else if ((edca[j] & 0xFFFF) == (edca[i] & 0xFFFF)) {
- /* compare TXOP */
- if ((edca[j] >> 16) > (edca[i] >> 16))
- change_inx = true;
- }
-
- if (change_inx) {
- tmp = edca[i];
- edca[i] = edca[j];
- edca[j] = tmp;
-
- tmp = inx[i];
- inx[i] = inx[j];
- inx[j] = tmp;
-
- change_inx = false;
- }
- }
- }
- }
+ if (pregpriv->wifi_spec == 1)
+ sort_wmm_ac_params(inx, edca);
for (i = 0; i < 4; i++)
pxmitpriv->wmm_para_seq[i] = inx[i];
@@ -1510,6 +1509,33 @@ void set_sta_rate(struct adapter *padapter, struct sta_info *psta)
Update_RA_Entry(padapter, psta);
}
+static u32 get_realtek_assoc_AP_vender(struct ndis_80211_var_ie *pIE)
+{
+ u32 Vender = HT_IOT_PEER_REALTEK;
+
+ if (pIE->Length >= 5) {
+ if (pIE->data[4] == 1)
+ /* if (pIE->data[5] & RT_HT_CAP_USE_LONG_PREAMBLE) */
+ /* bssDesc->BssHT.RT2RT_HT_Mode |= RT_HT_CAP_USE_LONG_PREAMBLE; */
+ if (pIE->data[5] & RT_HT_CAP_USE_92SE)
+ /* bssDesc->BssHT.RT2RT_HT_Mode |= RT_HT_CAP_USE_92SE; */
+ Vender = HT_IOT_PEER_REALTEK_92SE;
+
+ if (pIE->data[5] & RT_HT_CAP_USE_SOFTAP)
+ Vender = HT_IOT_PEER_REALTEK_SOFTAP;
+
+ if (pIE->data[4] == 2) {
+ if (pIE->data[6] & RT_HT_CAP_USE_JAGUAR_BCUT)
+ Vender = HT_IOT_PEER_REALTEK_JAGUAR_BCUTAP;
+
+ if (pIE->data[6] & RT_HT_CAP_USE_JAGUAR_CCUT)
+ Vender = HT_IOT_PEER_REALTEK_JAGUAR_CCUTAP;
+ }
+ }
+
+ return Vender;
+}
+
unsigned char check_assoc_AP(u8 *pframe, uint len)
{
unsigned int i;
@@ -1533,29 +1559,7 @@ unsigned char check_assoc_AP(u8 *pframe, uint len)
} else if (!memcmp(pIE->data, CISCO_OUI, 3)) {
return HT_IOT_PEER_CISCO;
} else if (!memcmp(pIE->data, REALTEK_OUI, 3)) {
- u32 Vender = HT_IOT_PEER_REALTEK;
-
- if (pIE->Length >= 5) {
- if (pIE->data[4] == 1)
- /* if (pIE->data[5] & RT_HT_CAP_USE_LONG_PREAMBLE) */
- /* bssDesc->BssHT.RT2RT_HT_Mode |= RT_HT_CAP_USE_LONG_PREAMBLE; */
- if (pIE->data[5] & RT_HT_CAP_USE_92SE)
- /* bssDesc->BssHT.RT2RT_HT_Mode |= RT_HT_CAP_USE_92SE; */
- Vender = HT_IOT_PEER_REALTEK_92SE;
-
- if (pIE->data[5] & RT_HT_CAP_USE_SOFTAP)
- Vender = HT_IOT_PEER_REALTEK_SOFTAP;
-
- if (pIE->data[4] == 2) {
- if (pIE->data[6] & RT_HT_CAP_USE_JAGUAR_BCUT)
- Vender = HT_IOT_PEER_REALTEK_JAGUAR_BCUTAP;
-
- if (pIE->data[6] & RT_HT_CAP_USE_JAGUAR_CCUT)
- Vender = HT_IOT_PEER_REALTEK_JAGUAR_CCUTAP;
- }
- }
-
- return Vender;
+ return get_realtek_assoc_AP_vender(pIE);
} else if (!memcmp(pIE->data, AIRGOCAP_OUI, 3)) {
return HT_IOT_PEER_AIRGO;
} else
--
2.53.0
next prev parent reply other threads:[~2026-07-15 2:46 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-13 13:33 FAILED: patch "[PATCH] staging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop" failed to apply to 5.10-stable tree gregkh
2026-07-15 2:45 ` [PATCH 5.10.y 01/10] staging: rtl8723bs: remove DBG_871X log argument Sasha Levin
2026-07-15 2:45 ` [PATCH 5.10.y 02/10] staging: rtl8723bs: remove all DBG_871X logs Sasha Levin
2026-07-15 2:45 ` [PATCH 5.10.y 03/10] staging: rtl8723bs: remove commented out " Sasha Levin
2026-07-15 2:46 ` [PATCH 5.10.y 04/10] staging: rtl8723bs: remove all if-else empty blocks left by DBG_871X removal Sasha Levin
2026-07-15 2:46 ` [PATCH 5.10.y 05/10] staging: rtl8723bs: remove empty #ifdef blocks after " Sasha Levin
2026-07-15 2:46 ` [PATCH 5.10.y 06/10] staging: rtl8723bs: remove unnecessary bracks on DBG_871X removal sites Sasha Levin
2026-07-15 2:46 ` Sasha Levin [this message]
2026-07-15 2:46 ` [PATCH 5.10.y 08/10] staging: rtl8723bs: remove code related to unsupported channel bandwidth Sasha Levin
2026-07-15 2:46 ` [PATCH 5.10.y 09/10] staging: rtl8723bs: fix camel case in IE structures Sasha Levin
2026-07-15 2:46 ` [PATCH 5.10.y 10/10] staging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop Sasha Levin
-- strict thread matches above, loose matches on Subject: below --
2026-07-13 13:33 FAILED: patch "[PATCH] staging: rtl8723bs: fix OOB read in update_beacon_info() IE" failed to apply to 5.10-stable tree gregkh
2026-07-15 2:45 ` [PATCH 5.10.y 01/10] staging: rtl8723bs: remove DBG_871X log argument Sasha Levin
2026-07-15 2:45 ` [PATCH 5.10.y 07/10] staging: rtl8723bs: refactor to reduce indents Sasha Levin
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