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authorJohannes Berg <johannes.berg@intel.com>2017-06-16 14:29:21 +0200
committerDavid S. Miller <davem@davemloft.net>2017-06-16 17:48:39 +0200
commit4df864c1d9afb46e2461a9f808d9f11a42d31bad (patch)
tree07e7b3d16b161e0d199c5b8116df277798566e4f /net/bluetooth/mgmt_util.c
parentnetworking: introduce and use skb_put_data() (diff)
downloadlinux-4df864c1d9afb46e2461a9f808d9f11a42d31bad.tar.xz
linux-4df864c1d9afb46e2461a9f808d9f11a42d31bad.zip
networking: make skb_put & friends return void pointers
It seems like a historic accident that these return unsigned char *, and in many places that means casts are required, more often than not. Make these functions (skb_put, __skb_put and pskb_put) return void * and remove all the casts across the tree, adding a (u8 *) cast only where the unsigned char pointer was used directly, all done with the following spatch: @@ expression SKB, LEN; typedef u8; identifier fn = { skb_put, __skb_put }; @@ - *(fn(SKB, LEN)) + *(u8 *)fn(SKB, LEN) @@ expression E, SKB, LEN; identifier fn = { skb_put, __skb_put }; type T; @@ - E = ((T *)(fn(SKB, LEN))) + E = fn(SKB, LEN) which actually doesn't cover pskb_put since there are only three users overall. A handful of stragglers were converted manually, notably a macro in drivers/isdn/i4l/isdn_bsdcomp.c and, oddly enough, one of the many instances in net/bluetooth/hci_sock.c. In the former file, I also had to fix one whitespace problem spatch introduced. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bluetooth/mgmt_util.c')
-rw-r--r--net/bluetooth/mgmt_util.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/net/bluetooth/mgmt_util.c b/net/bluetooth/mgmt_util.c
index 11d0ca64402b..d057113e0d4b 100644
--- a/net/bluetooth/mgmt_util.c
+++ b/net/bluetooth/mgmt_util.c
@@ -66,7 +66,7 @@ int mgmt_send_event(u16 event, struct hci_dev *hdev, unsigned short channel,
if (!skb)
return -ENOMEM;
- hdr = (void *) skb_put(skb, sizeof(*hdr));
+ hdr = skb_put(skb, sizeof(*hdr));
hdr->opcode = cpu_to_le16(event);
if (hdev)
hdr->index = cpu_to_le16(hdev->id);
@@ -103,13 +103,13 @@ int mgmt_cmd_status(struct sock *sk, u16 index, u16 cmd, u8 status)
if (!skb)
return -ENOMEM;
- hdr = (void *) skb_put(skb, sizeof(*hdr));
+ hdr = skb_put(skb, sizeof(*hdr));
hdr->opcode = cpu_to_le16(MGMT_EV_CMD_STATUS);
hdr->index = cpu_to_le16(index);
hdr->len = cpu_to_le16(sizeof(*ev));
- ev = (void *) skb_put(skb, sizeof(*ev));
+ ev = skb_put(skb, sizeof(*ev));
ev->status = status;
ev->opcode = cpu_to_le16(cmd);
@@ -147,13 +147,13 @@ int mgmt_cmd_complete(struct sock *sk, u16 index, u16 cmd, u8 status,
if (!skb)
return -ENOMEM;
- hdr = (void *) skb_put(skb, sizeof(*hdr));
+ hdr = skb_put(skb, sizeof(*hdr));
hdr->opcode = cpu_to_le16(MGMT_EV_CMD_COMPLETE);
hdr->index = cpu_to_le16(index);
hdr->len = cpu_to_le16(sizeof(*ev) + rp_len);
- ev = (void *) skb_put(skb, sizeof(*ev) + rp_len);
+ ev = skb_put(skb, sizeof(*ev) + rp_len);
ev->opcode = cpu_to_le16(cmd);
ev->status = status;