From 4df864c1d9afb46e2461a9f808d9f11a42d31bad Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 16 Jun 2017 14:29:21 +0200 Subject: 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 Signed-off-by: David S. Miller --- drivers/target/iscsi/cxgbit/cxgbit_cm.c | 8 ++++---- drivers/target/iscsi/cxgbit/cxgbit_ddp.c | 2 +- 2 files changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers/target/iscsi') diff --git a/drivers/target/iscsi/cxgbit/cxgbit_cm.c b/drivers/target/iscsi/cxgbit/cxgbit_cm.c index 939c6ec51e4d..15cd1e33b16b 100644 --- a/drivers/target/iscsi/cxgbit/cxgbit_cm.c +++ b/drivers/target/iscsi/cxgbit/cxgbit_cm.c @@ -1085,7 +1085,7 @@ cxgbit_pass_accept_rpl(struct cxgbit_sock *csk, struct cpl_pass_accept_req *req) return; } - rpl5 = (struct cpl_t5_pass_accept_rpl *)__skb_put(skb, len); + rpl5 = __skb_put(skb, len); memset(rpl5, 0, len); INIT_TP_WR(rpl5, csk->tid); @@ -1367,7 +1367,7 @@ u32 cxgbit_send_tx_flowc_wr(struct cxgbit_sock *csk) flowclen16 = cxgbit_tx_flowc_wr_credits(csk, &nparams, &flowclen); skb = __skb_dequeue(&csk->skbq); - flowc = (struct fw_flowc_wr *)__skb_put(skb, flowclen); + flowc = __skb_put(skb, flowclen); memset(flowc, 0, flowclen); flowc->op_to_nparams = cpu_to_be32(FW_WR_OP_V(FW_FLOWC_WR) | @@ -1439,7 +1439,7 @@ int cxgbit_setup_conn_digest(struct cxgbit_sock *csk) return -ENOMEM; /* set up ulp submode */ - req = (struct cpl_set_tcb_field *)__skb_put(skb, len); + req = __skb_put(skb, len); memset(req, 0, len); INIT_TP_WR(req, csk->tid); @@ -1476,7 +1476,7 @@ int cxgbit_setup_conn_pgidx(struct cxgbit_sock *csk, u32 pg_idx) if (!skb) return -ENOMEM; - req = (struct cpl_set_tcb_field *)__skb_put(skb, len); + req = __skb_put(skb, len); memset(req, 0, len); INIT_TP_WR(req, csk->tid); diff --git a/drivers/target/iscsi/cxgbit/cxgbit_ddp.c b/drivers/target/iscsi/cxgbit/cxgbit_ddp.c index 5d78bdb7fc64..5fdb57cac968 100644 --- a/drivers/target/iscsi/cxgbit/cxgbit_ddp.c +++ b/drivers/target/iscsi/cxgbit/cxgbit_ddp.c @@ -79,7 +79,7 @@ cxgbit_ppod_init_idata(struct cxgbit_device *cdev, struct cxgbi_ppm *ppm, if (!skb) return NULL; - req = (struct ulp_mem_io *)__skb_put(skb, wr_len); + req = __skb_put(skb, wr_len); INIT_ULPTX_WR(req, wr_len, 0, tid); req->wr.wr_hi = htonl(FW_WR_OP_V(FW_ULPTX_WR) | FW_WR_ATOMIC_V(0)); -- cgit v1.2.3