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authorJohannes Berg <johannes.berg@intel.com>2017-06-16 14:29:24 +0200
committerDavid S. Miller <davem@davemloft.net>2017-06-16 11:48:40 -0400
commit634fef61076d644b989b86abc2f560d81a089a31 (patch)
tree41e0cfc0c640666a75ad07588df34addb18176d0 /drivers/bluetooth
parentd58ff35122847a83ba55394e2ae3a1527b6febf5 (diff)
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>
Diffstat (limited to 'drivers/bluetooth')
-rw-r--r--drivers/bluetooth/bluecard_cs.c2
-rw-r--r--drivers/bluetooth/bt3c_cs.c2
-rw-r--r--drivers/bluetooth/btuart_cs.c2
-rw-r--r--drivers/bluetooth/btusb.c6
-rw-r--r--drivers/bluetooth/dtl1_cs.c4
-rw-r--r--drivers/bluetooth/hci_bcm.c6
-rw-r--r--drivers/bluetooth/hci_intel.c2
-rw-r--r--drivers/bluetooth/hci_nokia.c2
-rw-r--r--drivers/bluetooth/hci_qca.c2
-rw-r--r--drivers/bluetooth/hci_vhci.c4
10 files changed, 16 insertions, 16 deletions
diff --git a/drivers/bluetooth/bluecard_cs.c b/drivers/bluetooth/bluecard_cs.c
index 39a05b0c8998..d4b0b655dde6 100644
--- a/drivers/bluetooth/bluecard_cs.c
+++ b/drivers/bluetooth/bluecard_cs.c
@@ -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) {
diff --git a/drivers/bluetooth/bt3c_cs.c b/drivers/bluetooth/bt3c_cs.c
index be2d431aa366..32dcac017395 100644
--- a/drivers/bluetooth/bt3c_cs.c
+++ b/drivers/bluetooth/bt3c_cs.c
@@ -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--;
diff --git a/drivers/bluetooth/btuart_cs.c b/drivers/bluetooth/btuart_cs.c
index 80b64e9684a3..7df79bb12350 100644
--- a/drivers/bluetooth/btuart_cs.c
+++ b/drivers/bluetooth/btuart_cs.c
@@ -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) {
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index ba207c787605..fa24d693af24 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -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);
diff --git a/drivers/bluetooth/dtl1_cs.c b/drivers/bluetooth/dtl1_cs.c
index 6c5a3aa566a4..2adfe4fade76 100644
--- a/drivers/bluetooth/dtl1_cs.c
+++ b/drivers/bluetooth/dtl1_cs.c
@@ -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);
diff --git a/drivers/bluetooth/hci_bcm.c b/drivers/bluetooth/hci_bcm.c
index c1c4048ee37d..d2e9e2d1b014 100644
--- a/drivers/bluetooth/hci_bcm.c
+++ b/drivers/bluetooth/hci_bcm.c
@@ -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);
diff --git a/drivers/bluetooth/hci_intel.c b/drivers/bluetooth/hci_intel.c
index ee97c465e32e..aad07e40ea4f 100644
--- a/drivers/bluetooth/hci_intel.c
+++ b/drivers/bluetooth/hci_intel.c
@@ -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;
diff --git a/drivers/bluetooth/hci_nokia.c b/drivers/bluetooth/hci_nokia.c
index 072a77a61e67..181a15b549e5 100644
--- a/drivers/bluetooth/hci_nokia.c
+++ b/drivers/bluetooth/hci_nokia.c
@@ -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);
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index e2c88515340a..392f412b4575 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -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);
diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c
index 1ef9c427a2d8..e6f6dbc04131 100644
--- a/drivers/bluetooth/hci_vhci.c
+++ b/drivers/bluetooth/hci_vhci.c
@@ -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);

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