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Subject[PATCH 02/14] staging:rtl8192u: Remove union from aci_aifsn - Style
Date
The union aci_aifsn is not used as a union, but only as a struct.
The union seems to have been used to ensure that the size of the
structure was only a single byte. That size is set by the bitfield
structure, adding a union with an unused byte adds nothing.

The union has been removed. This is a coding style change and
should not impact runtime code execution.

Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
---
.../staging/rtl8192u/ieee80211/rtl819x_Qos.h | 23 ++++++++-----------
drivers/staging/rtl8192u/r8192U_dm.c | 4 ++--
2 files changed, 12 insertions(+), 15 deletions(-)

diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_Qos.h b/drivers/staging/rtl8192u/ieee80211/rtl819x_Qos.h
index 810d81addcf6..1f16d1692c03 100644
--- a/drivers/staging/rtl8192u/ieee80211/rtl819x_Qos.h
+++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_Qos.h
@@ -2,19 +2,16 @@
#ifndef __INC_QOS_TYPE_H
#define __INC_QOS_TYPE_H

-//
-// ACI/AIFSN Field.
-// Ref: WMM spec 2.2.2: WME Parameter Element, p.12.
-//
-union aci_aifsn {
- u8 char_data;
-
- struct {
- u8 aifsn:4;
- u8 acm:1;
- u8 aci:2;
- u8 reserved:1;
- } f; // Field
+/*
+ * ACI/AIFSN Field.
+ * Ref: WMM spec 2.2.2: WME Parameter Element, p.12.
+ * Note: 1 Byte Length
+ */
+struct aci_aifsn {
+ u8 aifsn:4;
+ u8 acm:1;
+ u8 aci:2;
+ u8:1;
};

//
diff --git a/drivers/staging/rtl8192u/r8192U_dm.c b/drivers/staging/rtl8192u/r8192U_dm.c
index 92ba1fdd9831..0ba1b1e2bc6e 100644
--- a/drivers/staging/rtl8192u/r8192U_dm.c
+++ b/drivers/staging/rtl8192u/r8192U_dm.c
@@ -2242,12 +2242,12 @@ static void dm_check_edca_turbo(
{
/* TODO: Modified this part and try to set acm control in only 1 IO processing!! */

- union aci_aifsn *pAciAifsn = (union aci_aifsn *)&(qos_parameters->aifs[0]);
+ struct aci_aifsn *pAciAifsn = (struct aci_aifsn *)&(qos_parameters->aifs[0]);
u8 AcmCtrl;

read_nic_byte(dev, AcmHwCtrl, &AcmCtrl);

- if (pAciAifsn->f.acm) { /* acm bit is 1. */
+ if (pAciAifsn->acm) { /* acm bit is 1. */
AcmCtrl |= AcmHw_BeqEn;
} else { /* ACM bit is 0. */
AcmCtrl &= (~AcmHw_BeqEn);
--
2.18.0
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