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 2026-10-31 04:01:48 -04:00
Code Issues Projects Releases Packages Wiki Activity

networking: make skb_put & friends 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 (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 <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Johannes Berg 2017-06-16 14:29:21 +02:00 • committed by David S. Miller
commit 4df864c1d9
145 changed files with 486 additions and 547 deletions
Download patch file Download diff file Expand all files Collapse all files

2
net/batman-adv/icmp_socket.c
View file

@ -207,7 +207,7 @@ static ssize_t batadv_socket_write(struct file *file, const char __user *buff,
skb->priority = TC_PRIO_CONTROL;
skb_reserve(skb, ETH_HLEN);
icmp_header = (struct batadv_icmp_header *)skb_put(skb, packet_len);
icmp_header = skb_put(skb, packet_len);
if (copy_from_user(icmp_header, buff, packet_len)) {
len = -EFAULT;

6
net/batman-adv/tp_meter.c
View file

@ -595,7 +595,7 @@ static int batadv_tp_send_msg(struct batadv_tp_vars *tp_vars, const u8 *src,
return BATADV_TP_REASON_MEMORY_ERROR;
skb_reserve(skb, ETH_HLEN);
icmp = (struct batadv_icmp_tp_packet *)skb_put(skb, sizeof(*icmp));
icmp = skb_put(skb, sizeof(*icmp));
/* fill the icmp header */
ether_addr_copy(icmp->dst, orig_node->orig);
@ -612,7 +612,7 @@ static int batadv_tp_send_msg(struct batadv_tp_vars *tp_vars, const u8 *src,
icmp->timestamp = htonl(timestamp);
data_len = len - sizeof(*icmp);
data = (u8 *)skb_put(skb, data_len);
data = skb_put(skb, data_len);
batadv_tp_fill_prerandom(tp_vars, data, data_len);
r = batadv_send_skb_to_orig(skb, orig_node, NULL);
@ -1190,7 +1190,7 @@ static int batadv_tp_send_ack(struct batadv_priv *bat_priv, const u8 *dst,
}
skb_reserve(skb, ETH_HLEN);
icmp = (struct batadv_icmp_tp_packet *)skb_put(skb, sizeof(*icmp));
icmp = skb_put(skb, sizeof(*icmp));
icmp->packet_type = BATADV_ICMP;
icmp->version = BATADV_COMPAT_VERSION;
icmp->ttl = BATADV_TTL;