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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 11:48:39 -0400
commit4df864c1d9afb46e2461a9f808d9f11a42d31bad (patch)
tree07e7b3d16b161e0d199c5b8116df277798566e4f /net/802/mrp.c
parent59ae1d127ac0ae404baf414c434ba2651b793f46 (diff)
downloadlinux-stericsson-4df864c1d9afb46e2461a9f808d9f11a42d31bad.tar.gz
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/802/mrp.c')
-rw-r--r--net/802/mrp.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/net/802/mrp.c b/net/802/mrp.c
index 72db2785ef2c..be4dd3165347 100644
--- a/net/802/mrp.c
+++ b/net/802/mrp.c
@@ -311,7 +311,7 @@ static int mrp_pdu_init(struct mrp_applicant *app)
skb_reset_network_header(skb);
skb_reset_transport_header(skb);
- ph = (struct mrp_pdu_hdr *)__skb_put(skb, sizeof(*ph));
+ ph = __skb_put(skb, sizeof(*ph));
ph->version = app->app->version;
app->pdu = skb;
@@ -324,7 +324,7 @@ static int mrp_pdu_append_end_mark(struct mrp_applicant *app)
if (skb_tailroom(app->pdu) < sizeof(*endmark))
return -1;
- endmark = (__be16 *)__skb_put(app->pdu, sizeof(*endmark));
+ endmark = __skb_put(app->pdu, sizeof(*endmark));
put_unaligned(MRP_END_MARK, endmark);
return 0;
}
@@ -368,7 +368,7 @@ static int mrp_pdu_append_msg_hdr(struct mrp_applicant *app,
if (skb_tailroom(app->pdu) < sizeof(*mh))
return -1;
- mh = (struct mrp_msg_hdr *)__skb_put(app->pdu, sizeof(*mh));
+ mh = __skb_put(app->pdu, sizeof(*mh));
mh->attrtype = attrtype;
mh->attrlen = attrlen;
mrp_cb(app->pdu)->mh = mh;
@@ -382,8 +382,7 @@ static int mrp_pdu_append_vecattr_hdr(struct mrp_applicant *app,
if (skb_tailroom(app->pdu) < sizeof(*vah) + attrlen)
return -1;
- vah = (struct mrp_vecattr_hdr *)__skb_put(app->pdu,
- sizeof(*vah) + attrlen);
+ vah = __skb_put(app->pdu, sizeof(*vah) + attrlen);
put_unaligned(0, &vah->lenflags);
memcpy(vah->firstattrvalue, firstattrvalue, attrlen);
mrp_cb(app->pdu)->vah = vah;
@@ -435,7 +434,7 @@ again:
if (!pos) {
if (skb_tailroom(app->pdu) < sizeof(u8))
goto queue;
- vaevents = (u8 *)__skb_put(app->pdu, sizeof(u8));
+ vaevents = __skb_put(app->pdu, sizeof(u8));
} else {
vaevents = (u8 *)(skb_tail_pointer(app->pdu) - sizeof(u8));
}