OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Staging: rtl8192u: Use put_unaligned_le16 in rtl819x_BAProc.c 

This patch introduces the use of function put_unaligned_le16.

This is done using Coccinelle and semantic patch used is as follows:

@a@
typedef u16, __le16, uint16_t;
{u16,__le16,uint16_t} e16;
identifier tmp;
expression ptr;
expression y,e;
type T;
type T;
@@

- tmp = cpu_to_le16(y);

<+... when != tmp
(
- memcpy(ptr, (T)&tmp, \(2\|sizeof(u16)\|sizeof(__le16)\|sizeof(uint16_t)\|sizeof(e16)\));
+ put_unaligned_le16(y,ptr);
|
- memcpy(ptr, (T)&tmp, ...);
+ put_unaligned_le16(y,ptr);
)
...+>
? tmp = e

@@ type T; identifier a.tmp; @@

- T tmp;
...when != tmp

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Vaishali Thakkar 2015-01-27 23:41:13 +05:30 committed by Greg Kroah-Hartman
parent f0e0f8cffa
commit 9c18a05c45
1 changed files with 12 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c
View File

@ -4,6 +4,8 @@
* ADDBAREQ ADDBARSP and DELBA packet is still on consideration. Temporarily use MANAGE QUEUE instead of Normal Queue.
* WB 2008-05-27
* *****************************************************************************************************************************/
#include <asm/byteorder.h>
#include <asm/unaligned.h>
#include "ieee80211.h"
#include "rtl819x_BA.h"
@ -110,7 +112,6 @@ static struct sk_buff *ieee80211_ADDBA(struct ieee80211_device *ieee, u8 *Dst, P
struct sk_buff *skb = NULL;
struct ieee80211_hdr_3addr *BAReq = NULL;
u8 *tag = NULL;
__le16 tmp = 0;
u16 len = ieee->tx_headroom + 9;
//category(1) + action field(1) + Dialog Token(1) + BA Parameter Set(2) + BA Timeout Value(2) + BA Start SeqCtrl(2)(or StatusCode(2))
IEEE80211_DEBUG(IEEE80211_DL_TRACE | IEEE80211_DL_BA, "========>%s(), frame(%d) sentd to:%pM, ieee->dev:%p\n", __func__, type, Dst, ieee->dev);
@ -149,17 +150,17 @@ static struct sk_buff *ieee80211_ADDBA(struct ieee80211_device *ieee, u8 *Dst, P
{
// Status Code
printk("=====>to send ADDBARSP\n");
tmp = cpu_to_le16(StatusCode);
memcpy(tag, (u8 *)&tmp, 2);
put_unaligned_le16(StatusCode, tag);
tag += 2;
}
// BA Parameter Set
tmp = cpu_to_le16(pBA->BaParamSet.shortData);
memcpy(tag, (u8 *)&tmp, 2);
put_unaligned_le16(pBA->BaParamSet.shortData, tag);
tag += 2;
// BA Timeout Value
tmp = cpu_to_le16(pBA->BaTimeoutValue);
memcpy(tag, (u8 *)&tmp, 2);
put_unaligned_le16(pBA->BaTimeoutValue, tag);
tag += 2;
if (ACT_ADDBAREQ == type)
@ -196,7 +197,6 @@ static struct sk_buff *ieee80211_DELBA(
struct sk_buff *skb = NULL;
struct ieee80211_hdr_3addr *Delba = NULL;
u8 *tag = NULL;
__le16 tmp = 0;
//len = head len + DELBA Parameter Set(2) + Reason Code(2)
u16 len = 6 + ieee->tx_headroom;
@ -230,12 +230,12 @@ static struct sk_buff *ieee80211_DELBA(
*tag ++= ACT_DELBA;
// DELBA Parameter Set
tmp = cpu_to_le16(DelbaParamSet.shortData);
memcpy(tag, (u8 *)&tmp, 2);
put_unaligned_le16(DelbaParamSet.shortData, tag);
tag += 2;
// Reason Code
tmp = cpu_to_le16(ReasonCode);
memcpy(tag, (u8 *)&tmp, 2);
put_unaligned_le16(ReasonCode, tag);
tag += 2;
IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_BA, skb->data, skb->len);