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Date: Sun, 29 Aug 2021 13:25:53 +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 1/3] staging: r8188eu: convert type of second parameter of rtw_*_encrypt()
Convert the type of the second parameter of the rtw_*_encrypt() functions
to struct xmit_frame.
All callers of the functions cast the type to (u8 *) and in the functions
it is casted back to the original type. Changing the type of the second
parameter to struct xmit_frame avoids these unnecessary casts and improves
readability.
Signed-off-by: Michael Straube <straube.linux@...il.com>
---
drivers/staging/r8188eu/core/rtw_mlme_ext.c | 2 +-
drivers/staging/r8188eu/core/rtw_security.c | 36 +++++++++----------
drivers/staging/r8188eu/core/rtw_xmit.c | 6 ++--
.../staging/r8188eu/include/rtw_security.h | 6 ++--
4 files changed, 23 insertions(+), 27 deletions(-)
diff --git a/drivers/staging/r8188eu/core/rtw_mlme_ext.c b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
index 5a472a4954b0..d78d1b00f66c 100644
--- a/drivers/staging/r8188eu/core/rtw_mlme_ext.c
+++ b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
@@ -5049,7 +5049,7 @@ void issue_auth(struct adapter *padapter, struct sta_info *psta, unsigned short
pattrib->last_txcmdsz = pattrib->pktlen;
- rtw_wep_encrypt(padapter, (u8 *)pmgntframe);
+ rtw_wep_encrypt(padapter, pmgntframe);
DBG_88E("%s\n", __func__);
dump_mgntframe(padapter, pmgntframe);
}
diff --git a/drivers/staging/r8188eu/core/rtw_security.c b/drivers/staging/r8188eu/core/rtw_security.c
index 5aa893ab46e9..5168159d8ae7 100644
--- a/drivers/staging/r8188eu/core/rtw_security.c
+++ b/drivers/staging/r8188eu/core/rtw_security.c
@@ -77,7 +77,7 @@ static void arcfour_encrypt(struct arc4context *parc4ctx, u8 *dest, u8 *src, u32
/*
Need to consider the fragment situation
*/
-void rtw_wep_encrypt(struct adapter *padapter, u8 *pxmitframe)
+void rtw_wep_encrypt(struct adapter *padapter, struct xmit_frame *pxmitframe)
{ /* exclude ICV */
union {
__le32 f0;
@@ -91,17 +91,15 @@ void rtw_wep_encrypt(struct adapter *padapter, u8 *pxmitframe)
u8 *pframe, *payload, *iv; /* wepkey */
u8 wepkey[16];
u8 hw_hdr_offset = 0;
- struct pkt_attrib *pattrib = &((struct xmit_frame *)pxmitframe)->attrib;
+ struct pkt_attrib *pattrib = &pxmitframe->attrib;
struct security_priv *psecuritypriv = &padapter->securitypriv;
struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
- if (!((struct xmit_frame *)pxmitframe)->buf_addr)
+ if (!pxmitframe->buf_addr)
return;
- hw_hdr_offset = TXDESC_SIZE +
- (((struct xmit_frame *)pxmitframe)->pkt_offset * PACKET_OFFSET_SZ);
-
- pframe = ((struct xmit_frame *)pxmitframe)->buf_addr + hw_hdr_offset;
+ hw_hdr_offset = TXDESC_SIZE + pxmitframe->pkt_offset * PACKET_OFFSET_SZ;
+ pframe = pxmitframe->buf_addr + hw_hdr_offset;
/* start to encrypt each fragment */
if ((pattrib->encrypt == _WEP40_) || (pattrib->encrypt == _WEP104_)) {
@@ -502,7 +500,7 @@ static void phase2(u8 *rc4key, const u8 *tk, const u16 *p1k, u16 iv16)
}
/* The hlen isn't include the IV */
-u32 rtw_tkip_encrypt(struct adapter *padapter, u8 *pxmitframe)
+u32 rtw_tkip_encrypt(struct adapter *padapter, struct xmit_frame *pxmitframe)
{ /* exclude ICV */
u16 pnl;
u32 pnh;
@@ -519,17 +517,17 @@ u32 rtw_tkip_encrypt(struct adapter *padapter, u8 *pxmitframe)
u8 *pframe, *payload, *iv, *prwskey;
union pn48 dot11txpn;
struct sta_info *stainfo;
- struct pkt_attrib *pattrib = &((struct xmit_frame *)pxmitframe)->attrib;
+ struct pkt_attrib *pattrib = &pxmitframe->attrib;
struct security_priv *psecuritypriv = &padapter->securitypriv;
struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
u32 res = _SUCCESS;
- if (!((struct xmit_frame *)pxmitframe)->buf_addr)
+ if (!pxmitframe->buf_addr)
return _FAIL;
- hw_hdr_offset = TXDESC_SIZE +
- (((struct xmit_frame *)pxmitframe)->pkt_offset * PACKET_OFFSET_SZ);
- pframe = ((struct xmit_frame *)pxmitframe)->buf_addr + hw_hdr_offset;
+ hw_hdr_offset = TXDESC_SIZE + pxmitframe->pkt_offset * PACKET_OFFSET_SZ;
+ pframe = pxmitframe->buf_addr + hw_hdr_offset;
+
/* 4 start to encrypt each fragment */
if (pattrib->encrypt == _TKIP_) {
if (pattrib->psta)
@@ -1154,7 +1152,7 @@ static int aes_cipher(u8 *key, uint hdrlen, u8 *pframe, uint plen)
return _SUCCESS;
}
-u32 rtw_aes_encrypt(struct adapter *padapter, u8 *pxmitframe)
+u32 rtw_aes_encrypt(struct adapter *padapter, struct xmit_frame *pxmitframe)
{ /* exclude ICV */
/*static*/
@@ -1165,20 +1163,18 @@ u32 rtw_aes_encrypt(struct adapter *padapter, u8 *pxmitframe)
u8 *pframe, *prwskey; /* *payload,*iv */
u8 hw_hdr_offset = 0;
struct sta_info *stainfo;
- struct pkt_attrib *pattrib = &((struct xmit_frame *)pxmitframe)->attrib;
+ struct pkt_attrib *pattrib = &pxmitframe->attrib;
struct security_priv *psecuritypriv = &padapter->securitypriv;
struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
/* uint offset = 0; */
u32 res = _SUCCESS;
- if (!((struct xmit_frame *)pxmitframe)->buf_addr)
+ if (!pxmitframe->buf_addr)
return _FAIL;
- hw_hdr_offset = TXDESC_SIZE +
- (((struct xmit_frame *)pxmitframe)->pkt_offset * PACKET_OFFSET_SZ);
-
- pframe = ((struct xmit_frame *)pxmitframe)->buf_addr + hw_hdr_offset;
+ hw_hdr_offset = TXDESC_SIZE + pxmitframe->pkt_offset * PACKET_OFFSET_SZ;
+ pframe = pxmitframe->buf_addr + hw_hdr_offset;
/* 4 start to encrypt each fragment */
if (pattrib->encrypt == _AES_) {
diff --git a/drivers/staging/r8188eu/core/rtw_xmit.c b/drivers/staging/r8188eu/core/rtw_xmit.c
index 46fe62c7c32c..bcc4d65cdcee 100644
--- a/drivers/staging/r8188eu/core/rtw_xmit.c
+++ b/drivers/staging/r8188eu/core/rtw_xmit.c
@@ -683,13 +683,13 @@ static s32 xmitframe_swencrypt(struct adapter *padapter, struct xmit_frame *pxmi
switch (pattrib->encrypt) {
case _WEP40_:
case _WEP104_:
- rtw_wep_encrypt(padapter, (u8 *)pxmitframe);
+ rtw_wep_encrypt(padapter, pxmitframe);
break;
case _TKIP_:
- rtw_tkip_encrypt(padapter, (u8 *)pxmitframe);
+ rtw_tkip_encrypt(padapter, pxmitframe);
break;
case _AES_:
- rtw_aes_encrypt(padapter, (u8 *)pxmitframe);
+ rtw_aes_encrypt(padapter, pxmitframe);
break;
default:
break;
diff --git a/drivers/staging/r8188eu/include/rtw_security.h b/drivers/staging/r8188eu/include/rtw_security.h
index ec6ecdb7bc98..4e6d4257b7ba 100644
--- a/drivers/staging/r8188eu/include/rtw_security.h
+++ b/drivers/staging/r8188eu/include/rtw_security.h
@@ -330,9 +330,9 @@ void rtw_secmicappend(struct mic_data *pmicdata, u8 *src, u32 nBytes);
void rtw_secgetmic(struct mic_data *pmicdata, u8 *dst);
void rtw_seccalctkipmic(u8 *key, u8 *header, u8 *data, u32 data_len,
u8 *Miccode, u8 priority);
-u32 rtw_aes_encrypt(struct adapter *padapter, u8 *pxmitframe);
-u32 rtw_tkip_encrypt(struct adapter *padapter, u8 *pxmitframe);
-void rtw_wep_encrypt(struct adapter *padapter, u8 *pxmitframe);
+u32 rtw_aes_encrypt(struct adapter *padapter, struct xmit_frame *pxmitframe);
+u32 rtw_tkip_encrypt(struct adapter *padapter, struct xmit_frame *pxmitframe);
+void rtw_wep_encrypt(struct adapter *padapter, struct xmit_frame *pxmitframe);
u32 rtw_aes_decrypt(struct adapter *padapter, u8 *precvframe);
u32 rtw_tkip_decrypt(struct adapter *padapter, u8 *precvframe);
void rtw_wep_decrypt(struct adapter *padapter, u8 *precvframe);
--
2.32.0
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