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authorJohannes Berg <johannes.berg@intel.com>2017-06-16 15:29:20 +0300
committerDavid S. Miller <davem@davemloft.net>2017-06-16 18:48:37 +0300
commit59ae1d127ac0ae404baf414c434ba2651b793f46 (patch)
tree043e71496aa7a7db86bcc8219a3a51f533aac982 /drivers/bluetooth/hci_intel.c
parentb080db585384b9f037e015c0c28d1ad33be41dfc (diff)
downloadlinux-59ae1d127ac0ae404baf414c434ba2651b793f46.tar.xz
networking: introduce and use skb_put_data()
A common pattern with skb_put() is to just want to memcpy() some data into the new space, introduce skb_put_data() for this. An spatch similar to the one for skb_put_zero() converts many of the places using it: @@ identifier p, p2; expression len, skb, data; type t, t2; @@ ( -p = skb_put(skb, len); +p = skb_put_data(skb, data, len); | -p = (t)skb_put(skb, len); +p = skb_put_data(skb, data, len); ) ( p2 = (t2)p; -memcpy(p2, data, len); | -memcpy(p, data, len); ) @@ type t, t2; identifier p, p2; expression skb, data; @@ t *p; ... ( -p = skb_put(skb, sizeof(t)); +p = skb_put_data(skb, data, sizeof(t)); | -p = (t *)skb_put(skb, sizeof(t)); +p = skb_put_data(skb, data, sizeof(t)); ) ( p2 = (t2)p; -memcpy(p2, data, sizeof(*p)); | -memcpy(p, data, sizeof(*p)); ) @@ expression skb, len, data; @@ -memcpy(skb_put(skb, len), data, len); +skb_put_data(skb, data, len); (again, manually post-processed to retain some comments) Reviewed-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/bluetooth/hci_intel.c')
-rw-r--r--drivers/bluetooth/hci_intel.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/bluetooth/hci_intel.c b/drivers/bluetooth/hci_intel.c
index 851bee82df2a..16e728577cd8 100644
--- a/drivers/bluetooth/hci_intel.c
+++ b/drivers/bluetooth/hci_intel.c
@@ -185,7 +185,7 @@ static int intel_lpm_suspend(struct hci_uart *hu)
return -ENOMEM;
}
- memcpy(skb_put(skb, sizeof(suspend)), suspend, sizeof(suspend));
+ skb_put_data(skb, suspend, sizeof(suspend));
hci_skb_pkt_type(skb) = HCI_LPM_PKT;
set_bit(STATE_LPM_TRANSACTION, &intel->flags);
@@ -270,8 +270,7 @@ static int intel_lpm_host_wake(struct hci_uart *hu)
return -ENOMEM;
}
- memcpy(skb_put(skb, sizeof(lpm_resume_ack)), lpm_resume_ack,
- sizeof(lpm_resume_ack));
+ skb_put_data(skb, lpm_resume_ack, sizeof(lpm_resume_ack));
hci_skb_pkt_type(skb) = HCI_LPM_PKT;
/* LPM flow is a priority, enqueue packet at list head */
@@ -522,7 +521,7 @@ static int intel_set_baudrate(struct hci_uart *hu, unsigned int speed)
return -ENOMEM;
}
- memcpy(skb_put(skb, sizeof(speed_cmd)), speed_cmd, sizeof(speed_cmd));
+ skb_put_data(skb, speed_cmd, sizeof(speed_cmd));
hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
hci_uart_set_flow_control(hu, true);