From d58ff35122847a83ba55394e2ae3a1527b6febf5 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 16 Jun 2017 14:29:23 +0200 Subject: networking: make skb_push & __skb_push 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 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 Signed-off-by: David S. Miller --- drivers/infiniband/hw/cxgb3/iwch_cm.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/infiniband/hw/cxgb3/iwch_cm.c') diff --git a/drivers/infiniband/hw/cxgb3/iwch_cm.c b/drivers/infiniband/hw/cxgb3/iwch_cm.c index 9ae518c01bc2..86975370a4c0 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_cm.c +++ b/drivers/infiniband/hw/cxgb3/iwch_cm.c @@ -513,7 +513,7 @@ static void send_mpa_req(struct iwch_ep *ep, struct sk_buff *skb) set_arp_failure_handler(skb, arp_failure_discard); skb_reset_transport_header(skb); len = skb->len; - req = (struct tx_data_wr *) skb_push(skb, sizeof(*req)); + req = skb_push(skb, sizeof(*req)); req->wr_hi = htonl(V_WR_OP(FW_WROPCODE_OFLD_TX_DATA)|F_WR_COMPL); req->wr_lo = htonl(V_WR_TID(ep->hwtid)); req->len = htonl(len); @@ -564,7 +564,7 @@ static int send_mpa_reject(struct iwch_ep *ep, const void *pdata, u8 plen) skb->priority = CPL_PRIORITY_DATA; set_arp_failure_handler(skb, arp_failure_discard); skb_reset_transport_header(skb); - req = (struct tx_data_wr *) skb_push(skb, sizeof(*req)); + req = skb_push(skb, sizeof(*req)); req->wr_hi = htonl(V_WR_OP(FW_WROPCODE_OFLD_TX_DATA)|F_WR_COMPL); req->wr_lo = htonl(V_WR_TID(ep->hwtid)); req->len = htonl(mpalen); @@ -615,7 +615,7 @@ static int send_mpa_reply(struct iwch_ep *ep, const void *pdata, u8 plen) set_arp_failure_handler(skb, arp_failure_discard); skb_reset_transport_header(skb); len = skb->len; - req = (struct tx_data_wr *) skb_push(skb, sizeof(*req)); + req = skb_push(skb, sizeof(*req)); req->wr_hi = htonl(V_WR_OP(FW_WROPCODE_OFLD_TX_DATA)|F_WR_COMPL); req->wr_lo = htonl(V_WR_TID(ep->hwtid)); req->len = htonl(len); -- cgit v1.2.3-59-g8ed1b