linux-kernel - [PATCH 1/2] staging: r8188eu: remove unused function rtw_add_bcn

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Date:   Thu, 19 Aug 2021 13:21:59 +0200
From:   Michael Straube <straube.linux@...il.com>
To:     gregkh@...uxfoundation.org
Cc:     Larry.Finger@...inger.net, phil@...lpotter.co.uk, martin@...ser.cx,
        fmdefrancesco@...il.com, linux-staging@...ts.linux.dev,
        linux-kernel@...r.kernel.org,
        Michael Straube <straube.linux@...il.com>
Subject: [PATCH 1/2] staging: r8188eu: remove unused function rtw_add_bcn_ie()

Function rtw_add_bcn_ie() is not used anywhere, remove it.

Signed-off-by: Michael Straube <straube.linux@...il.com>
---
 drivers/staging/r8188eu/core/rtw_ap.c    | 63 ------------------------
 drivers/staging/r8188eu/include/rtw_ap.h |  2 -
 2 files changed, 65 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_ap.c b/drivers/staging/r8188eu/core/rtw_ap.c
index 1127e9a52458..0237b7f8e42f 100644
--- a/drivers/staging/r8188eu/core/rtw_ap.c
+++ b/drivers/staging/r8188eu/core/rtw_ap.c
@@ -139,69 +139,6 @@ static void update_BCNTIM(struct adapter *padapter)
 	set_tx_beacon_cmd(padapter);
 }
 
-void rtw_add_bcn_ie(struct adapter *padapter, struct wlan_bssid_ex *pnetwork, u8 index, u8 *data, u8 len)
-{
-	struct ndis_802_11_var_ie *pIE;
-	u8 bmatch = false;
-	u8 *pie = pnetwork->IEs;
-	u8 *p = NULL, *dst_ie = NULL, *premainder_ie = NULL;
-	u8 *pbackup_remainder_ie = NULL;
-	u32 i, offset, ielen = 0, ie_offset, remainder_ielen = 0;
-
-	for (i = sizeof(struct ndis_802_11_fixed_ie); i < pnetwork->IELength;) {
-		pIE = (struct ndis_802_11_var_ie *)(pnetwork->IEs + i);
-
-		if (pIE->ElementID > index) {
-			break;
-		} else if (pIE->ElementID == index) { /*  already exist the same IE */
-			p = (u8 *)pIE;
-			ielen = pIE->Length;
-			bmatch = true;
-			break;
-		}
-		p = (u8 *)pIE;
-		ielen = pIE->Length;
-		i += (pIE->Length + 2);
-	}
-
-	if (p && ielen > 0) {
-		ielen += 2;
-
-		premainder_ie = p + ielen;
-
-		ie_offset = (int)(p - pie);
-
-		remainder_ielen = pnetwork->IELength - ie_offset - ielen;
-
-		if (bmatch)
-			dst_ie = p;
-		else
-			dst_ie = (p + ielen);
-	}
-
-	if (remainder_ielen > 0) {
-		pbackup_remainder_ie = kmalloc(remainder_ielen, GFP_KERNEL);
-		if (pbackup_remainder_ie && premainder_ie)
-			memcpy(pbackup_remainder_ie, premainder_ie, remainder_ielen);
-	}
-
-	*dst_ie++ = index;
-	*dst_ie++ = len;
-
-	memcpy(dst_ie, data, len);
-	dst_ie += len;
-
-	/* copy remainder IE */
-	if (pbackup_remainder_ie) {
-		memcpy(dst_ie, pbackup_remainder_ie, remainder_ielen);
-
-		kfree(pbackup_remainder_ie);
-	}
-
-	offset =  (uint)(dst_ie - pie);
-	pnetwork->IELength = offset + remainder_ielen;
-}
-
 void rtw_remove_bcn_ie(struct adapter *padapter, struct wlan_bssid_ex *pnetwork, u8 index)
 {
 	u8 *p, *dst_ie = NULL, *premainder_ie = NULL;
diff --git a/drivers/staging/r8188eu/include/rtw_ap.h b/drivers/staging/r8188eu/include/rtw_ap.h
index b20edab3bb00..fffb6794b1ce 100644
--- a/drivers/staging/r8188eu/include/rtw_ap.h
+++ b/drivers/staging/r8188eu/include/rtw_ap.h
@@ -16,8 +16,6 @@ void rtw_indicate_sta_disassoc_event(struct adapter *padapter,
 				     struct sta_info *psta);
 void init_mlme_ap_info(struct adapter *padapter);
 void free_mlme_ap_info(struct adapter *padapter);
-void rtw_add_bcn_ie(struct adapter *padapter, struct wlan_bssid_ex *pnetwork,
-		    u8 index, u8 *data, u8 len);
 void rtw_remove_bcn_ie(struct adapter *padapter,
 		       struct wlan_bssid_ex *pnetwork, u8 index);
 void update_beacon(struct adapter *padapter, u8 ie_id,
-- 
2.32.0