A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 18:51:56 -04:00
Code Issues Projects Releases Packages Wiki Activity

networking: make skb_push & __skb_push return void pointers

Browse source 
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 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_push, __skb_push, skb_push_rcsum };
    @@
    - *(fn(SKB, LEN))
    + *(u8 *)fn(SKB, LEN)

    @@
    expression E, SKB, LEN;
    identifier fn = { skb_push, __skb_push, skb_push_rcsum };
    type T;
    @@
    - E = ((T *)(fn(SKB, LEN)))
    + E = fn(SKB, LEN)

    @@
    expression SKB, LEN;
    identifier fn = { skb_push, __skb_push, skb_push_rcsum };
    @@
    - fn(SKB, LEN)[0]
    + *(u8 *)fn(SKB, LEN)

Note that the last part there converts from push(...)[0] to the
more idiomatic *(u8 *)push(...).

Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Johannes Berg 2017-06-16 14:29:23 +02:00 • committed by David S. Miller
commit d58ff35122
126 changed files with 204 additions and 234 deletions
Download patch file Download diff file Expand all files Collapse all files

4
net/decnet/dn_dev.c
View file

@ -867,7 +867,7 @@ static void dn_send_endnode_hello(struct net_device *dev, struct dn_ifaddr *ifa)
msg->datalen = 0x02;
memset(msg->data, 0xAA, 2);
pktlen = (__le16 *)skb_push(skb,2);
pktlen = skb_push(skb, 2);
*pktlen = cpu_to_le16(skb->len - 2);
skb_reset_network_header(skb);
@ -959,7 +959,7 @@ static void dn_send_router_hello(struct net_device *dev, struct dn_ifaddr *ifa)
skb_trim(skb, (27 + *i2));
pktlen = (__le16 *)skb_push(skb, 2);
pktlen = skb_push(skb, 2);
*pktlen = cpu_to_le16(skb->len - 2);
skb_reset_network_header(skb);