Use the existing offsetof() macro instead of duplicating code.
Signed-off-by: Mauro Dreissig <mukadr@xxxxxxxxx>
---
drivers/staging/rtl8712/basic_types.h | 1 -
drivers/staging/rtl8712/hal_init.c | 4 ++--
drivers/staging/rtl8712/rtl871x_ioctl_linux.c | 4 ++--
3 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/drivers/staging/rtl8712/basic_types.h b/drivers/staging/rtl8712/basic_types.h
index 4ad7f35b1644..b8ecd92ca9d4 100644
--- a/drivers/staging/rtl8712/basic_types.h
+++ b/drivers/staging/rtl8712/basic_types.h
@@ -21,7 +21,6 @@
#define SIZE_T __kernel_size_t
#define sint signed int
-#define FIELD_OFFSET(s, field) ((addr_t)&((s *)(0))->field)
/* Should we extend this to be host_addr_t and target_addr_t for case:
* host : x86_64
diff --git a/drivers/staging/rtl8712/hal_init.c b/drivers/staging/rtl8712/hal_init.c
index 40145c0338e4..7293cdc3a43b 100644
--- a/drivers/staging/rtl8712/hal_init.c
+++ b/drivers/staging/rtl8712/hal_init.c
@@ -133,7 +133,7 @@ static u8 chk_fwhdr(struct fw_hdr *pfwhdr, u32 ulfilelength)
if (pfwhdr->fw_priv_sz != sizeof(struct fw_priv))
return _FAIL;
/* check fw_sz & image_fw_sz */
- fwhdrsz = FIELD_OFFSET(struct fw_hdr, fwpriv) + pfwhdr->fw_priv_sz;
+ fwhdrsz = offsetof(struct fw_hdr, fwpriv) + pfwhdr->fw_priv_sz;
fw_sz = fwhdrsz + pfwhdr->img_IMEM_size + pfwhdr->img_SRAM_size +
pfwhdr->dmem_size;
if (fw_sz != ulfilelength)
@@ -173,7 +173,7 @@ static u8 rtl8712_dl_fw(struct _adapter *adapter)
txdesc = (struct tx_desc *)(tmpchar + FWBUFF_ALIGN_SZ -
((addr_t)(tmpchar) & (FWBUFF_ALIGN_SZ - 1)));
payload = (u8 *)(txdesc) + txdscp_sz;
- ptr = (u8 *)mappedfw + FIELD_OFFSET(struct fw_hdr, fwpriv) +
+ ptr = (u8 *)mappedfw + offsetof(struct fw_hdr, fwpriv) +
fwhdr.fw_priv_sz;
/* Download FirmWare */
/* 1. determine IMEM code size and Load IMEM Code Section */
diff --git a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
index 36c89cde525d..90ffb7c9f299 100644
--- a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
+++ b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
@@ -407,7 +407,7 @@ static int wpa_set_encryption(struct net_device *dev, struct ieee_param *param,
return -ENOMEM;
pwep->KeyLength = wep_key_len;
pwep->Length = wep_key_len +
- FIELD_OFFSET(struct NDIS_802_11_WEP, KeyMaterial);
+ offsetof(struct NDIS_802_11_WEP, KeyMaterial);
if (wep_key_len == 13) {
padapter->securitypriv.PrivacyAlgrthm = _WEP104_;
padapter->securitypriv.XGrpPrivacy = _WEP104_;
@@ -1555,7 +1555,7 @@ static int r8711_wx_set_enc(struct net_device *dev,
if (erq->length > 0) {
wep.KeyLength = erq->length <= 5 ? 5 : 13;
wep.Length = wep.KeyLength +
- FIELD_OFFSET(struct NDIS_802_11_WEP, KeyMaterial);
+ offsetof(struct NDIS_802_11_WEP, KeyMaterial);
} else {
wep.KeyLength = 0;
if (keyindex_provided == 1) { /* set key_id only, no given
--
2.25.1
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