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networking: add and use skb_put_u8() 

Joe and Bjørn suggested that it'd be nicer to not have the
cast in the fairly common case of doing
	*(u8 *)skb_put(skb, 1) = c;

Add skb_put_u8() for this case, and use it across the code,
using the following spatch:

    @@
    expression SKB, C, S;
    typedef u8;
    identifier fn = {skb_put};
    fresh identifier fn2 = fn ## "_u8";
    @@
    - *(u8 *)fn(SKB, S) = C;
    + fn2(SKB, C);

Note that due to the "S", the spatch isn't perfect, it should
have checked that S is 1, but there's also places that use a
sizeof expression like sizeof(var) or sizeof(u8) etc. Turns
out that nobody ever did something like
	*(u8 *)skb_put(skb, 2) = c;

which would be wrong anyway since the second byte wouldn't be
initialized.

Suggested-by: Joe Perches <joe@perches.com>
Suggested-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Johannes Berg 2017-06-16 14:29:24 +02:00 committed by David S. Miller
parent d58ff35122
commit 634fef6107
39 changed files with 106 additions and 100 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/bluetooth/bluecard_cs.c
View File

@ -448,7 +448,7 @@ static void bluecard_receive(struct bluecard_info *info,
} else {
*(u8 *)skb_put(info->rx_skb, 1) = buf[i];
skb_put_u8(info->rx_skb, buf[i]);
info->rx_count--;
if (info->rx_count == 0) {

2
drivers/bluetooth/bt3c_cs.c
View File

@ -282,7 +282,7 @@ static void bt3c_receive(struct bt3c_info *info)
__u8 x = inb(iobase + DATA_L);
*(u8 *)skb_put(info->rx_skb, 1) = x;
skb_put_u8(info->rx_skb, x);
inb(iobase + DATA_H);
info->rx_count--;

2
drivers/bluetooth/btuart_cs.c
View File

@ -233,7 +233,7 @@ static void btuart_receive(struct btuart_info *info)
} else {
*(u8 *)skb_put(info->rx_skb, 1) = inb(iobase + UART_RX);
skb_put_u8(info->rx_skb, inb(iobase + UART_RX));
info->rx_count--;
if (info->rx_count == 0) {

6
drivers/bluetooth/btusb.c
View File

@ -1844,7 +1844,7 @@ static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
evt->ncmd = 0x01;
evt->opcode = cpu_to_le16(opcode);
*(u8 *)skb_put(skb, 1) = 0x00;
skb_put_u8(skb, 0x00);
hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
@ -2767,8 +2767,8 @@ static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
return ERR_PTR(-ENOMEM);
}
*(u8 *)skb_put(skb, 1) = 0xf0;
*(u8 *)skb_put(skb, 1) = enable;
skb_put_u8(skb, 0xf0);
skb_put_u8(skb, enable);
pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);

4
drivers/bluetooth/dtl1_cs.c
View File

@ -226,7 +226,7 @@ static void dtl1_receive(struct dtl1_info *info)
}
}
*(u8 *)skb_put(info->rx_skb, 1) = inb(iobase + UART_RX);
skb_put_u8(info->rx_skb, inb(iobase + UART_RX));
nsh = (struct nsh *)info->rx_skb->data;
info->rx_count--;
@ -414,7 +414,7 @@ static int dtl1_hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
skb_reserve(s, NSHL);
skb_copy_from_linear_data(skb, skb_put(s, skb->len), skb->len);
if (skb->len & 0x0001)
*(u8 *)skb_put(s, 1) = 0; /* PAD */
skb_put_u8(s, 0); /* PAD */
/* Prepend skb with Nokia frame header and queue */
memcpy(skb_push(s, NSHL), &nsh, NSHL);

6
drivers/bluetooth/hci_bcm.c
View File

@ -262,9 +262,9 @@ static int bcm_set_diag(struct hci_dev *hdev, bool enable)
if (!skb)
return -ENOMEM;
*(u8 *)skb_put(skb, 1) = BCM_LM_DIAG_PKT;
*(u8 *)skb_put(skb, 1) = 0xf0;
*(u8 *)skb_put(skb, 1) = enable;
skb_put_u8(skb, BCM_LM_DIAG_PKT);
skb_put_u8(skb, 0xf0);
skb_put_u8(skb, enable);
skb_queue_tail(&bcm->txq, skb);
hci_uart_tx_wakeup(hu);

2
drivers/bluetooth/hci_intel.c
View File

@ -470,7 +470,7 @@ static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
evt->ncmd = 0x01;
evt->opcode = cpu_to_le16(opcode);
*(u8 *)skb_put(skb, 1) = 0x00;
skb_put_u8(skb, 0x00);
hci_skb_pkt_type(skb) = HCI_EVENT_PKT;

2
drivers/bluetooth/hci_nokia.c
View File

@ -532,7 +532,7 @@ static int nokia_enqueue(struct hci_uart *hu, struct sk_buff *skb)
err = skb_pad(skb, 1);
if (err)
return err;
*(u8 *)skb_put(skb, 1) = 0x00;
skb_put_u8(skb, 0x00);
}
skb_queue_tail(&btdev->txq, skb);

2
drivers/bluetooth/hci_qca.c
View File

@ -215,7 +215,7 @@ static int send_hci_ibs_cmd(u8 cmd, struct hci_uart *hu)
}
/* Assign HCI_IBS type */
*(u8 *)skb_put(skb, 1) = cmd;
skb_put_u8(skb, cmd);
skb_queue_tail(&qca->txq, skb);

4
drivers/bluetooth/hci_vhci.c
View File

@ -146,8 +146,8 @@ static int __vhci_create_device(struct vhci_data *data, __u8 opcode)
hci_skb_pkt_type(skb) = HCI_VENDOR_PKT;
*(u8 *)skb_put(skb, 1) = 0xff;
*(u8 *)skb_put(skb, 1) = opcode;
skb_put_u8(skb, 0xff);
skb_put_u8(skb, opcode);
put_unaligned_le16(hdev->id, skb_put(skb, 2));
skb_queue_tail(&data->readq, skb);

4
drivers/isdn/capi/capi.c
View File

@ -1082,7 +1082,7 @@ static int capinc_tty_put_char(struct tty_struct *tty, unsigned char ch)
skb = mp->outskb;
if (skb) {
if (skb_tailroom(skb) > 0) {
*(u8 *)skb_put(skb, 1) = ch;
skb_put_u8(skb, ch);
goto unlock_out;
}
mp->outskb = NULL;
@ -1094,7 +1094,7 @@ static int capinc_tty_put_char(struct tty_struct *tty, unsigned char ch)
skb = alloc_skb(CAPI_DATA_B3_REQ_LEN + CAPI_MAX_BLKSIZE, GFP_ATOMIC);
if (skb) {
skb_reserve(skb, CAPI_DATA_B3_REQ_LEN);
*(u8 *)skb_put(skb, 1) = ch;
skb_put_u8(skb, ch);
mp->outskb = skb;
} else {
printk(KERN_ERR "capinc_put_char: char %u lost\n", ch);

22
drivers/isdn/gigaset/asyncdata.c
View File

@ -492,33 +492,33 @@ static struct sk_buff *HDLC_Encode(struct sk_buff *skb)
hdlc_skb->mac_len = skb->mac_len;
/* Add flag sequence in front of everything.. */
*(u8 *)skb_put(hdlc_skb, 1) = PPP_FLAG;
skb_put_u8(hdlc_skb, PPP_FLAG);
/* Perform byte stuffing while copying data. */
while (skb->len--) {
if (muststuff(*skb->data)) {
*(u8 *)skb_put(hdlc_skb, 1) = PPP_ESCAPE;
*(u8 *)skb_put(hdlc_skb, 1) = (*skb->data++) ^ PPP_TRANS;
skb_put_u8(hdlc_skb, PPP_ESCAPE);
skb_put_u8(hdlc_skb, (*skb->data++) ^ PPP_TRANS);
} else
*(u8 *)skb_put(hdlc_skb, 1) = *skb->data++;
skb_put_u8(hdlc_skb, *skb->data++);
}
/* Finally add FCS (byte stuffed) and flag sequence */
c = (fcs & 0x00ff); /* least significant byte first */
if (muststuff(c)) {
*(u8 *)skb_put(hdlc_skb, 1) = PPP_ESCAPE;
skb_put_u8(hdlc_skb, PPP_ESCAPE);
c ^= PPP_TRANS;
}
*(u8 *)skb_put(hdlc_skb, 1) = c;
skb_put_u8(hdlc_skb, c);
c = ((fcs >> 8) & 0x00ff);
if (muststuff(c)) {
*(u8 *)skb_put(hdlc_skb, 1) = PPP_ESCAPE;
skb_put_u8(hdlc_skb, PPP_ESCAPE);
c ^= PPP_TRANS;
}
*(u8 *)skb_put(hdlc_skb, 1) = c;
skb_put_u8(hdlc_skb, c);
*(u8 *)skb_put(hdlc_skb, 1) = PPP_FLAG;
skb_put_u8(hdlc_skb, PPP_FLAG);
dev_kfree_skb_any(skb);
return hdlc_skb;
@ -561,8 +561,8 @@ static struct sk_buff *iraw_encode(struct sk_buff *skb)
while (len--) {
c = bitrev8(*cp++);
if (c == DLE_FLAG)
*(u8 *)skb_put(iraw_skb, 1) = c;
*(u8 *)skb_put(iraw_skb, 1) = c;
skb_put_u8(iraw_skb, c);
skb_put_u8(iraw_skb, c);
}
dev_kfree_skb_any(skb);
return iraw_skb;

7
drivers/isdn/i4l/isdn_bsdcomp.c
View File

@ -602,7 +602,8 @@ static int bsd_compress(void *state, struct sk_buff *skb_in, struct sk_buff *skb
* Do not emit a completely useless byte of ones.
*/
if (bitno < 32 && skb_out && skb_tailroom(skb_out) > 0)
*(u8 *)skb_put(skb_out, 1) = (unsigned char)((accm | (0xff << (bitno - 8))) >> 24);
skb_put_u8(skb_out,
(unsigned char)((accm | (0xff << (bitno - 8))) >> 24));
/*
* Increase code size if we would have without the packet
@ -698,7 +699,7 @@ static int bsd_decompress(void *state, struct sk_buff *skb_in, struct sk_buff *s
db->bytes_out += ilen;
if (skb_tailroom(skb_out) > 0)
*(u8 *)skb_put(skb_out, 1) = 0;
skb_put_u8(skb_out, 0);
else
return DECOMP_ERR_NOMEM;
@ -816,7 +817,7 @@ static int bsd_decompress(void *state, struct sk_buff *skb_in, struct sk_buff *s
#endif
if (extra) /* the KwKwK case again */
*(u8 *)skb_put(skb_out, 1) = finchar;
skb_put_u8(skb_out, finchar);
/*
* If not first code in a packet, and

4
drivers/isdn/i4l/isdn_x25iface.c
View File

@ -224,7 +224,7 @@ static int isdn_x25iface_connect_ind(struct concap_proto *cprot)
skb = dev_alloc_skb(1);
if (skb) {
*(u8 *)skb_put(skb, 1) = X25_IFACE_CONNECT;
skb_put_u8(skb, X25_IFACE_CONNECT);
skb->protocol = x25_type_trans(skb, cprot->net_dev);
netif_rx(skb);
return 0;
@ -253,7 +253,7 @@ static int isdn_x25iface_disconn_ind(struct concap_proto *cprot)
*state_p = WAN_DISCONNECTED;
skb = dev_alloc_skb(1);
if (skb) {
*(u8 *)skb_put(skb, 1) = X25_IFACE_DISCONNECT;
skb_put_u8(skb, X25_IFACE_DISCONNECT);
skb->protocol = x25_type_trans(skb, cprot->net_dev);
netif_rx(skb);
return 0;

4
drivers/net/hamradio/scc.c
View File

@ -540,7 +540,7 @@ static inline void scc_rxint(struct scc_channel *scc)
}
scc->rx_buff = skb;
*(u8 *)skb_put(skb, 1) = 0; /* KISS data */
skb_put_u8(skb, 0); /* KISS data */
}
if (skb->len >= scc->stat.bufsize)
@ -555,7 +555,7 @@ static inline void scc_rxint(struct scc_channel *scc)
return;
}
*(u8 *)skb_put(skb, 1) = Inb(scc->data);
skb_put_u8(skb, Inb(scc->data));
}

2
drivers/net/usb/cdc_ncm.c
View File

@ -1250,7 +1250,7 @@ cdc_ncm_fill_tx_frame(struct usbnet *dev, struct sk_buff *skb, __le32 sign)
skb_put_zero(skb_out, padding_count);
} else if (skb_out->len < ctx->tx_max &&
(skb_out->len % dev->maxpacket) == 0) {
*(u8 *)skb_put(skb_out, 1) = 0; /* force short packet */
skb_put_u8(skb_out, 0); /* force short packet */
}
/* set final frame length */

2
drivers/net/usb/net1080.c
View File

@ -473,7 +473,7 @@ encapsulate:
/* maybe pad; then trailer */
if (!((skb->len + sizeof *trailer) & 0x01))
*(u8 *)skb_put(skb, 1) = PAD_BYTE;
skb_put_u8(skb, PAD_BYTE);
trailer = skb_put(skb, sizeof *trailer);
put_unaligned(header->packet_id, &trailer->packet_id);
#if 0

8
drivers/net/usb/zaurus.c
View File

@ -74,10 +74,10 @@ done:
fcs = crc32_le(~0, skb->data, skb->len);
fcs = ~fcs;
*(u8 *)skb_put(skb, 1) = fcs & 0xff;
*(u8 *)skb_put(skb, 1) = (fcs>> 8) & 0xff;
*(u8 *)skb_put(skb, 1) = (fcs>>16) & 0xff;
*(u8 *)skb_put(skb, 1) = (fcs>>24) & 0xff;
skb_put_u8(skb, fcs & 0xff);
skb_put_u8(skb, (fcs >> 8) & 0xff);
skb_put_u8(skb, (fcs >> 16) & 0xff);
skb_put_u8(skb, (fcs >> 24) & 0xff);
}
return skb;
}

2
drivers/nfc/fdp/i2c.c
View File

@ -86,7 +86,7 @@ static void fdp_nci_i2c_add_len_lrc(struct sk_buff *skb)
for (i = 0; i < len + 2; i++)
lrc ^= skb->data[i];
*(u8 *)skb_put(skb, 1) = lrc;
skb_put_u8(skb, lrc);
}
static void fdp_nci_i2c_remove_len_lrc(struct sk_buff *skb)

4
drivers/nfc/microread/i2c.c
View File

@ -75,7 +75,7 @@ static void microread_i2c_add_len_crc(struct sk_buff *skb)
for (i = 0; i < skb->len; i++)
crc = crc ^ skb->data[i];
*(u8 *)skb_put(skb, 1) = crc;
skb_put_u8(skb, crc);
}
static void microread_i2c_remove_len_crc(struct sk_buff *skb)
@ -173,7 +173,7 @@ static int microread_i2c_read(struct microread_i2c_phy *phy,
goto flush;
}
*(u8 *)skb_put(*skb, 1) = len;
skb_put_u8(*skb, len);
r = i2c_master_recv(client, skb_put(*skb, len), len);
if (r != len) {

4
drivers/nfc/microread/microread.c
View File

@ -441,8 +441,8 @@ static int microread_im_transceive(struct nfc_hci_dev *hdev,
crc = crc_ccitt(0xffff, skb->data, skb->len);
crc = ~crc;
*(u8 *)skb_put(skb, 1) = crc & 0xff;
*(u8 *)skb_put(skb, 1) = crc >> 8;
skb_put_u8(skb, crc & 0xff);
skb_put_u8(skb, crc >> 8);
break;
case MICROREAD_GATE_ID_MREAD_NFC_T3:
control_bits = 0xDB;

4
drivers/nfc/nfcmrvl/fw_dnld.c
View File

@ -292,7 +292,7 @@ static int process_state_fw_dnld(struct nfcmrvl_private *priv,
out_skb = alloc_lc_skb(priv, 1);
if (!out_skb)
return -ENOMEM;
*(u8 *)skb_put(out_skb, 1) = 0xBF;
skb_put_u8(out_skb, 0xBF);
nci_send_frame(priv->ndev, out_skb);
priv->fw_dnld.substate = SUBSTATE_WAIT_NACK_CREDIT;
return 0;
@ -301,7 +301,7 @@ static int process_state_fw_dnld(struct nfcmrvl_private *priv,
out_skb = alloc_lc_skb(priv, 1);
if (!out_skb)
return -ENOMEM;
*(u8 *)skb_put(out_skb, 1) = HELPER_ACK_PACKET_FORMAT;
skb_put_u8(out_skb, HELPER_ACK_PACKET_FORMAT);
nci_send_frame(priv->ndev, out_skb);
priv->fw_dnld.substate = SUBSTATE_WAIT_ACK_CREDIT;
break;

32
drivers/nfc/pn533/pn533.c
View File

@ -1032,7 +1032,7 @@ static struct sk_buff *pn533_alloc_poll_tg_frame(struct pn533 *dev)
return NULL;
/* DEP support only */
*(u8 *)skb_put(skb, 1) = PN533_INIT_TARGET_DEP;
skb_put_u8(skb, PN533_INIT_TARGET_DEP);
/* MIFARE params */
skb_put_data(skb, mifare_params, 6);
@ -1046,12 +1046,12 @@ static struct sk_buff *pn533_alloc_poll_tg_frame(struct pn533 *dev)
memcpy(nfcid3, felica, 8);
/* General bytes */
*(u8 *)skb_put(skb, 1) = gbytes_len;
skb_put_u8(skb, gbytes_len);
gb = skb_put_data(skb, gbytes, gbytes_len);
/* Len Tk */
*(u8 *)skb_put(skb, 1) = 0;
skb_put_u8(skb, 0);
return skb;
}
@ -1280,8 +1280,8 @@ static void pn533_wq_rf(struct work_struct *work)
if (!skb)
return;
*(u8 *)skb_put(skb, 1) = PN533_CFGITEM_RF_FIELD;
*(u8 *)skb_put(skb, 1) = PN533_CFGITEM_RF_FIELD_AUTO_RFCA;
skb_put_u8(skb, PN533_CFGITEM_RF_FIELD);
skb_put_u8(skb, PN533_CFGITEM_RF_FIELD_AUTO_RFCA);
rc = pn533_send_cmd_async(dev, PN533_CMD_RF_CONFIGURATION, skb,
pn533_rf_complete, NULL);
@ -1375,8 +1375,8 @@ static int pn533_poll_dep(struct nfc_dev *nfc_dev)
if (!skb)
return -ENOMEM;
*(u8 *)skb_put(skb, 1) = 0x01; /* Active */
*(u8 *)skb_put(skb, 1) = 0x02; /* 424 kbps */
skb_put_u8(skb, 0x01); /* Active */
skb_put_u8(skb, 0x02); /* 424 kbps */
next = skb_put(skb, 1); /* Next */
*next = 0;
@ -1620,8 +1620,8 @@ static int pn533_activate_target_nfcdep(struct pn533 *dev)
if (!skb)
return -ENOMEM;
*(u8 *)skb_put(skb, sizeof(u8)) = 1; /* TG */
*(u8 *)skb_put(skb, sizeof(u8)) = 0; /* Next */
skb_put_u8(skb, 1); /* TG */
skb_put_u8(skb, 0); /* Next */
resp = pn533_send_cmd_sync(dev, PN533_CMD_IN_ATR, skb);
if (IS_ERR(resp))
@ -1737,7 +1737,7 @@ static void pn533_deactivate_target(struct nfc_dev *nfc_dev,
if (!skb)
return;
*(u8 *)skb_put(skb, 1) = 1; /* TG*/
skb_put_u8(skb, 1); /* TG*/
rc = pn533_send_cmd_async(dev, PN533_CMD_IN_RELEASE, skb,
pn533_deactivate_target_complete, NULL);
@ -1848,8 +1848,8 @@ static int pn533_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target,
if (!skb)
return -ENOMEM;
*(u8 *)skb_put(skb, 1) = !comm_mode; /* ActPass */
*(u8 *)skb_put(skb, 1) = 0x02; /* 424 kbps */
skb_put_u8(skb, !comm_mode); /* ActPass */
skb_put_u8(skb, 0x02); /* 424 kbps */
next = skb_put(skb, 1); /* Next */
*next = 0;
@ -2274,7 +2274,7 @@ static void pn533_wq_mi_recv(struct work_struct *work)
break;
}
default:
*(u8 *)skb_put(skb, sizeof(u8)) = 1; /*TG*/
skb_put_u8(skb, 1); /*TG*/
rc = pn533_send_cmd_direct_async(dev,
PN533_CMD_IN_DATA_EXCHANGE,
@ -2370,7 +2370,7 @@ static int pn533_set_configuration(struct pn533 *dev, u8 cfgitem, u8 *cfgdata,
if (!skb)
return -ENOMEM;
*(u8 *)skb_put(skb, sizeof(cfgitem)) = cfgitem;
skb_put_u8(skb, cfgitem);
skb_put_data(skb, cfgdata, cfgdata_len);
resp = pn533_send_cmd_sync(dev, PN533_CMD_RF_CONFIGURATION, skb);
@ -2415,7 +2415,7 @@ static int pn533_pasori_fw_reset(struct pn533 *dev)
if (!skb)
return -ENOMEM;
*(u8 *)skb_put(skb, sizeof(u8)) = 0x1;
skb_put_u8(skb, 0x1);
resp = pn533_send_cmd_sync(dev, 0x18, skb);
if (IS_ERR(resp))
@ -2454,7 +2454,7 @@ static int pn532_sam_configuration(struct nfc_dev *nfc_dev)
if (!skb)
return -ENOMEM;
*(u8 *)skb_put(skb, 1) = 0x01;
skb_put_u8(skb, 0x01);
resp = pn533_send_cmd_sync(dev, PN533_CMD_SAM_CONFIGURATION, skb);
if (IS_ERR(resp))

6
drivers/nfc/pn544/i2c.c
View File

@ -287,8 +287,8 @@ static void pn544_hci_i2c_add_len_crc(struct sk_buff *skb)
crc = crc_ccitt(0xffff, skb->data, skb->len);
crc = ~crc;
*(u8 *)skb_put(skb, 1) = crc & 0xff;
*(u8 *)skb_put(skb, 1) = crc >> 8;
skb_put_u8(skb, crc & 0xff);
skb_put_u8(skb, crc >> 8);
}
static void pn544_hci_i2c_remove_len_crc(struct sk_buff *skb)
@ -391,7 +391,7 @@ static int pn544_hci_i2c_read(struct pn544_i2c_phy *phy, struct sk_buff **skb)
goto flush;
}
*(u8 *)skb_put(*skb, 1) = len;
skb_put_u8(*skb, len);
r = i2c_master_recv(client, skb_put(*skb, len), len);
if (r != len) {

4
drivers/nfc/port100.c
View File

@ -991,7 +991,7 @@ static int port100_set_command_type(struct port100 *dev, u8 command_type)
if (!skb)
return -ENOMEM;
*(u8 *)skb_put(skb, sizeof(u8)) = command_type;
skb_put_u8(skb, command_type);
resp = port100_send_cmd_sync(dev, PORT100_CMD_SET_COMMAND_TYPE, skb);
if (IS_ERR(resp))
@ -1059,7 +1059,7 @@ static int port100_switch_rf(struct nfc_digital_dev *ddev, bool on)
if (!skb)
return -ENOMEM;
*(u8 *)skb_put(skb, 1) = on ? 1 : 0;
skb_put_u8(skb, on ? 1 : 0);
/* Cancel the last command if the device is being switched off */
if (!on)

6
drivers/nfc/st21nfca/i2c.c
View File

@ -177,10 +177,10 @@ static void st21nfca_hci_add_len_crc(struct sk_buff *skb)
crc = ~crc;
tmp = crc & 0x00ff;
*(u8 *)skb_put(skb, 1) = tmp;
skb_put_u8(skb, tmp);
tmp = (crc >> 8) & 0x00ff;
*(u8 *)skb_put(skb, 1) = tmp;
skb_put_u8(skb, tmp);
}
static void st21nfca_hci_remove_len_crc(struct sk_buff *skb)
@ -214,7 +214,7 @@ static int st21nfca_hci_i2c_write(void *phy_id, struct sk_buff *skb)
st21nfca_hci_add_len_crc(skb);
/* add ST21NFCA_SOF_EOF on tail */
*(u8 *)skb_put(skb, 1) = ST21NFCA_SOF_EOF;
skb_put_u8(skb, ST21NFCA_SOF_EOF);
/* add ST21NFCA_SOF_EOF on head */
*(u8 *)skb_push(skb, 1) = ST21NFCA_SOF_EOF;

2
drivers/nfc/st95hf/core.c
View File

@ -949,7 +949,7 @@ static int st95hf_in_send_cmd(struct nfc_digital_dev *ddev,
switch (stcontext->current_rf_tech) {
case NFC_DIGITAL_RF_TECH_106A:
len_data_to_tag = skb->len + 1;
*(u8 *)skb_put(skb, 1) = stcontext->sendrcv_trflag;
skb_put_u8(skb, stcontext->sendrcv_trflag);
break;
case NFC_DIGITAL_RF_TECH_106B:
case NFC_DIGITAL_RF_TECH_ISO15693:

5
include/linux/skbuff.h
View File

@ -1923,6 +1923,11 @@ static inline void *skb_put_data(struct sk_buff *skb, const void *data,
return tmp;
}
static inline void skb_put_u8(struct sk_buff *skb, u8 val)
{
*(u8 *)skb_put(skb, 1) = val;
}
void *skb_push(struct sk_buff *skb, unsigned int len);
static inline void *__skb_push(struct sk_buff *skb, unsigned int len)
{

2
net/bluetooth/hci_sock.c
View File

@ -517,7 +517,7 @@ static struct sk_buff *create_monitor_ctrl_open(struct sock *sk)
put_unaligned_le16(format, skb_put(skb, 2));
skb_put_data(skb, ver, sizeof(ver));
put_unaligned_le32(flags, skb_put(skb, 4));
*(u8 *)skb_put(skb, 1) = TASK_COMM_LEN;
skb_put_u8(skb, TASK_COMM_LEN);
skb_put_data(skb, hci_pi(sk)->comm, TASK_COMM_LEN);
__net_timestamp(skb);

2
net/bluetooth/hidp/core.c
View File

@ -112,7 +112,7 @@ static int hidp_send_message(struct hidp_session *session, struct socket *sock,
return -ENOMEM;
}
*(u8 *)skb_put(skb, 1) = hdr;
skb_put_u8(skb, hdr);
if (data && size > 0)
skb_put_data(skb, data, size);

12
net/decnet/dn_nsp_out.c
View File

@ -530,7 +530,7 @@ void dn_send_conn_conf(struct sock *sk, gfp_t gfp)
msg->info = scp->info_loc;
msg->segsize = cpu_to_le16(scp->segsize_loc);
*(u8 *)skb_put(skb, 1) = len;
skb_put_u8(skb, len);
if (len > 0)
skb_put_data(skb, scp->conndata_out.opt_data, len);
@ -686,25 +686,25 @@ void dn_nsp_send_conninit(struct sock *sk, unsigned char msgflg)
if (scp->peer.sdn_flags & SDF_UICPROXY)
menuver |= DN_MENUVER_UIC;
*(u8 *)skb_put(skb, 1) = menuver; /* Menu Version */
skb_put_u8(skb, menuver); /* Menu Version */
aux = scp->accessdata.acc_userl;
*(u8 *)skb_put(skb, 1) = aux;
skb_put_u8(skb, aux);
if (aux > 0)
skb_put_data(skb, scp->accessdata.acc_user, aux);
aux = scp->accessdata.acc_passl;
*(u8 *)skb_put(skb, 1) = aux;
skb_put_u8(skb, aux);
if (aux > 0)
skb_put_data(skb, scp->accessdata.acc_pass, aux);
aux = scp->accessdata.acc_accl;
*(u8 *)skb_put(skb, 1) = aux;
skb_put_u8(skb, aux);
if (aux > 0)
skb_put_data(skb, scp->accessdata.acc_acc, aux);
aux = (__u8)le16_to_cpu(scp->conndata_out.opt_optl);
*(u8 *)skb_put(skb, 1) = aux;
skb_put_u8(skb, aux);
if (aux > 0)
skb_put_data(skb, scp->conndata_out.opt_data, aux);

4
net/nfc/digital_core.c
View File

@ -74,8 +74,8 @@ void digital_skb_add_crc(struct sk_buff *skb, crc_func_t crc_func, u16 init,
if (msb_first)
crc = __fswab16(crc);
*(u8 *)skb_put(skb, 1) = crc & 0xFF;
*(u8 *)skb_put(skb, 1) = (crc >> 8) & 0xFF;
skb_put_u8(skb, crc & 0xFF);
skb_put_u8(skb, (crc >> 8) & 0xFF);
}
int digital_skb_check_crc(struct sk_buff *skb, crc_func_t crc_func,

2
net/nfc/digital_dep.c
View File

@ -654,7 +654,7 @@ static int digital_in_send_rtox(struct nfc_digital_dev *ddev,
if (!skb)
return -ENOMEM;
*(u8 *)skb_put(skb, 1) = rtox;
skb_put_u8(skb, rtox);
skb_push(skb, sizeof(struct digital_dep_req_res));

12
net/nfc/digital_technology.c
View File

@ -266,8 +266,8 @@ static int digital_in_send_rats(struct nfc_digital_dev *ddev,
if (!skb)
return -ENOMEM;
*(u8 *)skb_put(skb, 1) = DIGITAL_RATS_BYTE1;
*(u8 *)skb_put(skb, 1) = DIGITAL_RATS_PARAM;
skb_put_u8(skb, DIGITAL_RATS_BYTE1);
skb_put_u8(skb, DIGITAL_RATS_PARAM);
rc = digital_in_send_cmd(ddev, skb, 30, digital_in_recv_ats,
target);
@ -470,8 +470,8 @@ static int digital_in_send_sdd_req(struct nfc_digital_dev *ddev,
else
sel_cmd = DIGITAL_CMD_SEL_REQ_CL3;
*(u8 *)skb_put(skb, sizeof(u8)) = sel_cmd;
*(u8 *)skb_put(skb, sizeof(u8)) = DIGITAL_SDD_REQ_SEL_PAR;
skb_put_u8(skb, sel_cmd);
skb_put_u8(skb, DIGITAL_SDD_REQ_SEL_PAR);
return digital_in_send_cmd(ddev, skb, 30, digital_in_recv_sdd_res,
target);
@ -541,7 +541,7 @@ int digital_in_send_sens_req(struct nfc_digital_dev *ddev, u8 rf_tech)
if (!skb)
return -ENOMEM;
*(u8 *)skb_put(skb, sizeof(u8)) = DIGITAL_CMD_SENS_REQ;
skb_put_u8(skb, DIGITAL_CMD_SENS_REQ);
rc = digital_in_send_cmd(ddev, skb, 30, digital_in_recv_sens_res, NULL);
if (rc)
@ -937,7 +937,7 @@ static int digital_tg_send_sel_res(struct nfc_digital_dev *ddev)
if (!skb)
return -ENOMEM;
*(u8 *)skb_put(skb, 1) = DIGITAL_SEL_RES_NFC_DEP;
skb_put_u8(skb, DIGITAL_SEL_RES_NFC_DEP);
if (!DIGITAL_DRV_CAPS_TG_CRC(ddev))
digital_skb_add_crc_a(skb);

2
net/nfc/hci/core.c
View File

@ -874,7 +874,7 @@ static void nfc_hci_recv_from_llc(struct nfc_hci_dev *hdev, struct sk_buff *skb)
return;
}
*(u8 *)skb_put(hcp_skb, NFC_HCI_HCP_PACKET_HEADER_LEN) = pipe;
skb_put_u8(hcp_skb, pipe);
skb_queue_walk(&hdev->rx_hcp_frags, frag_skb) {
msg_len = frag_skb->len - NFC_HCI_HCP_PACKET_HEADER_LEN;

4
net/nfc/hci/llc_shdlc.c
View File

@ -382,8 +382,8 @@ static int llc_shdlc_connect_initiate(struct llc_shdlc *shdlc)
if (skb == NULL)
return -ENOMEM;
*(u8 *)skb_put(skb, 1) = SHDLC_MAX_WINDOW;
*(u8 *)skb_put(skb, 1) = SHDLC_SREJ_SUPPORT ? 1 : 0;
skb_put_u8(skb, SHDLC_MAX_WINDOW);
skb_put_u8(skb, SHDLC_SREJ_SUPPORT ? 1 : 0);
return llc_shdlc_send_u_frame(shdlc, skb, U_FRAME_RSET);
}

2
net/nfc/nci/hci.c
View File

@ -472,7 +472,7 @@ void nci_hci_data_received_cb(void *context,
return;
}
*(u8 *)skb_put(hcp_skb, NCI_HCI_HCP_PACKET_HEADER_LEN) = pipe;
skb_put_u8(hcp_skb, pipe);
skb_queue_walk(&ndev->hci_dev->rx_hcp_frags, frag_skb) {
msg_len = frag_skb->len - NCI_HCI_HCP_PACKET_HEADER_LEN;

8
net/nfc/nci/spi.c
View File

@ -86,8 +86,8 @@ int nci_spi_send(struct nci_spi *nspi,
u16 crc;
crc = crc_ccitt(CRC_INIT, skb->data, skb->len);
*(u8 *)skb_put(skb, 1) = crc >> 8;
*(u8 *)skb_put(skb, 1) = crc & 0xFF;
skb_put_u8(skb, crc >> 8);
skb_put_u8(skb, crc & 0xFF);
}
if (write_handshake_completion) {
@ -172,8 +172,8 @@ static int send_acknowledge(struct nci_spi *nspi, u8 acknowledge)
hdr[3] = 0;
crc = crc_ccitt(CRC_INIT, skb->data, skb->len);
*(u8 *)skb_put(skb, 1) = crc >> 8;
*(u8 *)skb_put(skb, 1) = crc & 0xFF;
skb_put_u8(skb, crc >> 8);
skb_put_u8(skb, crc & 0xFF);
ret = __nci_spi_send(nspi, skb, 0);

2
net/nfc/nci/uart.c
View File

@ -355,7 +355,7 @@ static int nci_uart_default_recv_buf(struct nci_uart *nu, const u8 *data,
/* Eat byte after byte till full packet header is received */
if (nu->rx_skb->len < NCI_CTRL_HDR_SIZE) {
*(u8 *)skb_put(nu->rx_skb, 1) = *data++;
skb_put_u8(nu->rx_skb, *data++);
--count;
continue;
}