[PATCH v3 5/7] drivers/staging/rtl8723bs: convert event_seq to use seqnum_ops

[Shuah Khan <skhan@linuxfoundation.org>]

Sequence Number api provides interfaces for unsigned atomic up counters
leveraging atomic_t and atomic64_t ops underneath. Convert it to use
seqnum_ops.

event_seq atomic_t variables are atomic counters. Convert them to use
seqnum_ops.

Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
---
 drivers/staging/rtl8723bs/core/rtw_cmd.c      |  3 +-
 drivers/staging/rtl8723bs/core/rtw_mlme_ext.c | 33 +++++++++++++------
 drivers/staging/rtl8723bs/include/rtw_cmd.h   |  3 +-
 .../staging/rtl8723bs/include/rtw_mlme_ext.h  |  3 +-
 4 files changed, 29 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/rtl8723bs/core/rtw_cmd.c b/drivers/staging/rtl8723bs/core/rtw_cmd.c
index 3fe79169a811..4db737cd748e 100644
--- a/drivers/staging/rtl8723bs/core/rtw_cmd.c
+++ b/drivers/staging/rtl8723bs/core/rtw_cmd.c
@@ -10,6 +10,7 @@
 #include <rtw_debug.h>
 #include <hal_btcoex.h>
 #include <linux/jiffies.h>
+#include <linux/seqnum_ops.h>
 
 static struct _cmd_callback rtw_cmd_callback[] = {
 	{GEN_CMD_CODE(_Read_MACREG), NULL}, /*0*/
@@ -207,7 +208,7 @@ static void c2h_wk_callback(_workitem * work);
 int rtw_init_evt_priv(struct evt_priv *pevtpriv)
 {
 	/* allocate DMA-able/Non-Page memory for cmd_buf and rsp_buf */
-	atomic_set(&pevtpriv->event_seq, 0);
+	seqnum32_init(&pevtpriv->event_seq, 0);
 	pevtpriv->evt_done_cnt = 0;
 
 	_init_workitem(&pevtpriv->c2h_wk, c2h_wk_callback, NULL);
diff --git a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
index fa4b0259c5ae..46e7f487a5ba 100644
--- a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
+++ b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
@@ -11,6 +11,7 @@
 #include <rtw_wifi_regd.h>
 #include <hal_btcoex.h>
 #include <linux/kernel.h>
+#include <linux/seqnum_ops.h>
 #include <asm/unaligned.h>
 
 static struct mlme_handler mlme_sta_tbl[] = {
@@ -281,7 +282,7 @@ static void init_mlme_ext_priv_value(struct adapter *padapter)
 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
 	struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
 
-	atomic_set(&pmlmeext->event_seq, 0);
+	seqnum32_init(&pmlmeext->event_seq, 0);
 	pmlmeext->mgnt_seq = 0;/* reset to zero when disconnect at client mode */
 	pmlmeext->sa_query_seq = 0;
 	pmlmeext->mgnt_80211w_IPN = 0;
@@ -5049,7 +5050,9 @@ void report_survey_event(struct adapter *padapter, union recv_frame *precv_frame
 	pc2h_evt_hdr = (struct C2HEvent_Header *)(pevtcmd);
 	pc2h_evt_hdr->len = sizeof(struct survey_event);
 	pc2h_evt_hdr->ID = GEN_EVT_CODE(_Survey);
-	pc2h_evt_hdr->seq = atomic_inc_return(&pmlmeext->event_seq);
+
+	/* seq is unsigned int seq:8 */
+	pc2h_evt_hdr->seq = seqnum32_inc(&pmlmeext->event_seq);
 
 	psurvey_evt = (struct survey_event *)(pevtcmd + sizeof(struct C2HEvent_Header));
 
@@ -5102,7 +5105,9 @@ void report_surveydone_event(struct adapter *padapter)
 	pc2h_evt_hdr = (struct C2HEvent_Header *)(pevtcmd);
 	pc2h_evt_hdr->len = sizeof(struct surveydone_event);
 	pc2h_evt_hdr->ID = GEN_EVT_CODE(_SurveyDone);
-	pc2h_evt_hdr->seq = atomic_inc_return(&pmlmeext->event_seq);
+
+	/* seq is unsigned int seq:8 */
+	pc2h_evt_hdr->seq = seqnum32_inc(&pmlmeext->event_seq);
 
 	psurveydone_evt = (struct surveydone_event *)(pevtcmd + sizeof(struct C2HEvent_Header));
 	psurveydone_evt->bss_cnt = pmlmeext->sitesurvey_res.bss_cnt;
@@ -5149,7 +5154,9 @@ void report_join_res(struct adapter *padapter, int res)
 	pc2h_evt_hdr = (struct C2HEvent_Header *)(pevtcmd);
 	pc2h_evt_hdr->len = sizeof(struct joinbss_event);
 	pc2h_evt_hdr->ID = GEN_EVT_CODE(_JoinBss);
-	pc2h_evt_hdr->seq = atomic_inc_return(&pmlmeext->event_seq);
+
+	/* seq is unsigned int seq:8 */
+	pc2h_evt_hdr->seq = seqnum32_inc(&pmlmeext->event_seq);
 
 	pjoinbss_evt = (struct joinbss_event *)(pevtcmd + sizeof(struct C2HEvent_Header));
 	memcpy((unsigned char *)(&(pjoinbss_evt->network.network)), &(pmlmeinfo->network), sizeof(struct wlan_bssid_ex));
@@ -5200,7 +5207,9 @@ void report_wmm_edca_update(struct adapter *padapter)
 	pc2h_evt_hdr = (struct C2HEvent_Header *)(pevtcmd);
 	pc2h_evt_hdr->len = sizeof(struct wmm_event);
 	pc2h_evt_hdr->ID = GEN_EVT_CODE(_WMM);
-	pc2h_evt_hdr->seq = atomic_inc_return(&pmlmeext->event_seq);
+
+	/* seq is unsigned int seq:8 */
+	pc2h_evt_hdr->seq = seqnum32_inc(&pmlmeext->event_seq);
 
 	pwmm_event = (struct wmm_event *)(pevtcmd + sizeof(struct C2HEvent_Header));
 	pwmm_event->wmm = 0;
@@ -5247,7 +5256,9 @@ void report_del_sta_event(struct adapter *padapter, unsigned char *MacAddr, unsi
 	pc2h_evt_hdr = (struct C2HEvent_Header *)(pevtcmd);
 	pc2h_evt_hdr->len = sizeof(struct stadel_event);
 	pc2h_evt_hdr->ID = GEN_EVT_CODE(_DelSTA);
-	pc2h_evt_hdr->seq = atomic_inc_return(&pmlmeext->event_seq);
+
+	/* seq is unsigned int seq:8 */
+	pc2h_evt_hdr->seq = seqnum32_inc(&pmlmeext->event_seq);
 
 	pdel_sta_evt = (struct stadel_event *)(pevtcmd + sizeof(struct C2HEvent_Header));
 	memcpy((unsigned char *)(&(pdel_sta_evt->macaddr)), MacAddr, ETH_ALEN);
@@ -5300,7 +5311,9 @@ void report_add_sta_event(struct adapter *padapter, unsigned char *MacAddr, int
 	pc2h_evt_hdr = (struct C2HEvent_Header *)(pevtcmd);
 	pc2h_evt_hdr->len = sizeof(struct stassoc_event);
 	pc2h_evt_hdr->ID = GEN_EVT_CODE(_AddSTA);
-	pc2h_evt_hdr->seq = atomic_inc_return(&pmlmeext->event_seq);
+
+	/* seq is unsigned int seq:8 */
+	pc2h_evt_hdr->seq = seqnum32_inc(&pmlmeext->event_seq);
 
 	padd_sta_evt = (struct stassoc_event *)(pevtcmd + sizeof(struct C2HEvent_Header));
 	memcpy((unsigned char *)(&(padd_sta_evt->macaddr)), MacAddr, ETH_ALEN);
@@ -6616,10 +6629,10 @@ u8 mlme_evt_hdl(struct adapter *padapter, unsigned char *pbuf)
 
 	#ifdef CHECK_EVENT_SEQ
 	/*  checking event sequence... */
-	if (evt_seq != (atomic_read(&pevt_priv->event_seq) & 0x7f)) {
+	if (evt_seq != (seqnum32_get(&pevt_priv->event_seq) & 0x7f)) {
 		RT_TRACE(_module_rtl871x_cmd_c_, _drv_info_,
 			 ("Event Seq Error! %d vs %d\n", (evt_seq & 0x7f),
-			  (atomic_read(&pevt_priv->event_seq) & 0x7f)));
+			  (seqnum32_get(&pevt_priv->event_seq) & 0x7f)));
 
 		pevt_priv->event_seq = (evt_seq+1)&0x7f;
 
@@ -6643,7 +6656,7 @@ u8 mlme_evt_hdl(struct adapter *padapter, unsigned char *pbuf)
 
 	}
 
-	atomic_inc(&pevt_priv->event_seq);
+	seqnum32_inc(&pevt_priv->event_seq);
 
 	peventbuf += 2;
 
diff --git a/drivers/staging/rtl8723bs/include/rtw_cmd.h b/drivers/staging/rtl8723bs/include/rtw_cmd.h
index 56c77bc7ca81..cc0ea649388b 100644
--- a/drivers/staging/rtl8723bs/include/rtw_cmd.h
+++ b/drivers/staging/rtl8723bs/include/rtw_cmd.h
@@ -8,6 +8,7 @@
 #define __RTW_CMD_H_
 
 #include <linux/completion.h>
+#include <linux/seqnum_ops.h>
 
 #define C2H_MEM_SZ (16*1024)
 
@@ -62,7 +63,7 @@
 		struct rtw_cbuf *c2h_queue;
 		#define C2H_QUEUE_MAX_LEN 10
 
-		atomic_t event_seq;
+		struct seqnum32 event_seq;
 		u8 *evt_buf;	/* shall be non-paged, and 4 bytes aligned */
 		u8 *evt_allocated_buf;
 		u32 evt_done_cnt;
diff --git a/drivers/staging/rtl8723bs/include/rtw_mlme_ext.h b/drivers/staging/rtl8723bs/include/rtw_mlme_ext.h
index 1567831caf91..537813c00670 100644
--- a/drivers/staging/rtl8723bs/include/rtw_mlme_ext.h
+++ b/drivers/staging/rtl8723bs/include/rtw_mlme_ext.h
@@ -7,6 +7,7 @@
 #ifndef __RTW_MLME_EXT_H_
 #define __RTW_MLME_EXT_H_
 
+#include <linux/seqnum_ops.h>
 
 /* 	Commented by Albert 20101105 */
 /* 	Increase the SURVEY_TO value from 100 to 150  (100ms to 150ms) */
@@ -461,7 +462,7 @@ struct p2p_oper_class_map {
 struct mlme_ext_priv {
 	struct adapter	*padapter;
 	u8 mlmeext_init;
-	atomic_t		event_seq;
+	struct seqnum32	event_seq;
 	u16 mgnt_seq;
 	u16 sa_query_seq;
 	u64 mgnt_80211w_IPN;
-- 
2.27.0