linux-kernel - [PATCH 4/6] staging: rtl8188eu: remove padapter from struct cmd

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Date:   Wed,  5 May 2021 22:26:20 +0200
From:   Martin Kaiser <martin@...ser.cx>
To:     Larry Finger <Larry.Finger@...inger.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-staging@...ts.linux.dev, kernel-janitors@...r.kernel.org,
        linux-kernel@...r.kernel.org, Martin Kaiser <martin@...ser.cx>
Subject: [PATCH 4/6] staging: rtl8188eu: remove padapter from struct cmd_priv

struct cmd_priv is an element of struct adapter. Use container_of
to get a pointer to the enclosing struct.

Signed-off-by: Martin Kaiser <martin@...ser.cx>
---
 drivers/staging/rtl8188eu/core/rtw_cmd.c    | 9 +++++----
 drivers/staging/rtl8188eu/include/rtw_cmd.h | 1 -
 drivers/staging/rtl8188eu/os_dep/os_intfs.c | 2 --
 3 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/rtl8188eu/core/rtw_cmd.c b/drivers/staging/rtl8188eu/core/rtw_cmd.c
index 955899f334e6..64e83684fb81 100644
--- a/drivers/staging/rtl8188eu/core/rtw_cmd.c
+++ b/drivers/staging/rtl8188eu/core/rtw_cmd.c
@@ -103,11 +103,12 @@ struct cmd_obj *rtw_dequeue_cmd(struct __queue *queue)
 
 static int rtw_cmd_filter(struct cmd_priv *pcmdpriv, struct cmd_obj *cmd_obj)
 {
+	struct adapter *padapter = container_of(pcmdpriv, struct adapter, cmdpriv);
 	u8 bAllow = false; /* set to true to allow enqueuing cmd when hw_init_completed is false */
 
 	/* To decide allow or not */
-	if ((pcmdpriv->padapter->pwrctrlpriv.bHWPwrPindetect) &&
-	    (!pcmdpriv->padapter->registrypriv.usbss_enable)) {
+	if ((padapter->pwrctrlpriv.bHWPwrPindetect) &&
+	    (!padapter->registrypriv.usbss_enable)) {
 		if (cmd_obj->cmdcode == _Set_Drv_Extra_CMD_) {
 			struct drvextra_cmd_parm	*pdrvextra_cmd_parm = (struct drvextra_cmd_parm	*)cmd_obj->parmbuf;
 
@@ -119,7 +120,7 @@ static int rtw_cmd_filter(struct cmd_priv *pcmdpriv, struct cmd_obj *cmd_obj)
 	if (cmd_obj->cmdcode == _SetChannelPlan_CMD_)
 		bAllow = true;
 
-	if ((!pcmdpriv->padapter->hw_init_completed && !bAllow) ||
+	if ((!padapter->hw_init_completed && !bAllow) ||
 	    !pcmdpriv->cmdthd_running)	/* com_thread not running */
 		return _FAIL;
 	return _SUCCESS;
@@ -128,7 +129,7 @@ static int rtw_cmd_filter(struct cmd_priv *pcmdpriv, struct cmd_obj *cmd_obj)
 u32 rtw_enqueue_cmd(struct cmd_priv *pcmdpriv, struct cmd_obj *cmd_obj)
 {
 	int res = _FAIL;
-	struct adapter *padapter = pcmdpriv->padapter;
+	struct adapter *padapter = container_of(pcmdpriv, struct adapter, cmdpriv);
 
 	if (!cmd_obj)
 		goto exit;
diff --git a/drivers/staging/rtl8188eu/include/rtw_cmd.h b/drivers/staging/rtl8188eu/include/rtw_cmd.h
index cb0eb4a1d2b7..0261cd931c35 100644
--- a/drivers/staging/rtl8188eu/include/rtw_cmd.h
+++ b/drivers/staging/rtl8188eu/include/rtw_cmd.h
@@ -35,7 +35,6 @@ struct cmd_priv {
 	struct completion terminate_cmdthread_comp;
 	struct __queue cmd_queue;
 	u8 cmdthd_running;
-	struct adapter *padapter;
 };
 
 #define init_h2fwcmd_w_parm_no_rsp(pcmd, pparm, code) \
diff --git a/drivers/staging/rtl8188eu/os_dep/os_intfs.c b/drivers/staging/rtl8188eu/os_dep/os_intfs.c
index 193895338cf0..5207cb0c60cd 100644
--- a/drivers/staging/rtl8188eu/os_dep/os_intfs.c
+++ b/drivers/staging/rtl8188eu/os_dep/os_intfs.c
@@ -423,8 +423,6 @@ u8 rtw_init_drv_sw(struct adapter *padapter)
 
 	rtw_init_cmd_priv(&padapter->cmdpriv);
 
-	padapter->cmdpriv.padapter = padapter;
-
 	if (rtw_init_mlme_priv(padapter) == _FAIL) {
 		RT_TRACE(_module_os_intfs_c_, _drv_err_, ("\n Can't init mlme_priv\n"));
 		ret8 = _FAIL;
-- 
2.20.1