diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2017-06-16 15:29:21 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-06-16 18:48:39 +0300 |
| commit | 4df864c1d9afb46e2461a9f808d9f11a42d31bad (patch) | |
| tree | 07e7b3d16b161e0d199c5b8116df277798566e4f /net/ipv6/mcast.c | |
| parent | 59ae1d127ac0ae404baf414c434ba2651b793f46 (diff) | |
| download | linux-4df864c1d9afb46e2461a9f808d9f11a42d31bad.tar.xz | |
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/ipv6/mcast.c')
| -rw-r--r-- | net/ipv6/mcast.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c index b64046ccae69..e2221135858b 100644 --- a/net/ipv6/mcast.c +++ b/net/ipv6/mcast.c @@ -1692,7 +1692,7 @@ static struct sk_buff *add_grhead(struct sk_buff *skb, struct ifmcaddr6 *pmc, skb = mld_newpack(pmc->idev, dev->mtu); if (!skb) return NULL; - pgr = (struct mld2_grec *)skb_put(skb, sizeof(struct mld2_grec)); + pgr = skb_put(skb, sizeof(struct mld2_grec)); pgr->grec_type = type; pgr->grec_auxwords = 0; pgr->grec_nsrcs = 0; @@ -1784,7 +1784,7 @@ static struct sk_buff *add_grec(struct sk_buff *skb, struct ifmcaddr6 *pmc, } if (!skb) return NULL; - psrc = (struct in6_addr *)skb_put(skb, sizeof(*psrc)); + psrc = skb_put(skb, sizeof(*psrc)); *psrc = psf->sf_addr; scount++; stotal++; if ((type == MLD2_ALLOW_NEW_SOURCES || |