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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 /drivers/media
parent59ae1d127ac0ae404baf414c434ba2651b793f46 (diff)
downloadop-kernel-dev-4df864c1d9afb46e2461a9f808d9f11a42d31bad.zip
op-kernel-dev-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 'drivers/media')
-rw-r--r--drivers/media/dvb-core/dvb_net.c2
-rw-r--r--drivers/media/radio/wl128x/fmdrv_common.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/media/dvb-core/dvb_net.c b/drivers/media/dvb-core/dvb_net.c
index bbaf0a8..06b0dcc1 100644
--- a/drivers/media/dvb-core/dvb_net.c
+++ b/drivers/media/dvb-core/dvb_net.c
@@ -963,7 +963,7 @@ static void dvb_net_sec(struct net_device *dev,
skb->dev = dev;
/* copy L3 payload */
- eth = (u8 *) skb_put(skb, pkt_len - 12 - 4 + 14 - snap);
+ eth = skb_put(skb, pkt_len - 12 - 4 + 14 - snap);
memcpy(eth + 14, pkt + 12 + snap, pkt_len - 12 - 4 - snap);
/* create ethernet header: */
diff --git a/drivers/media/radio/wl128x/fmdrv_common.c b/drivers/media/radio/wl128x/fmdrv_common.c
index c67e055..ab3428b 100644
--- a/drivers/media/radio/wl128x/fmdrv_common.c
+++ b/drivers/media/radio/wl128x/fmdrv_common.c
@@ -416,7 +416,7 @@ static int fm_send_cmd(struct fmdev *fmdev, u8 fm_op, u16 type, void *payload,
if (!test_bit(FM_FW_DW_INPROGRESS, &fmdev->flag) ||
test_bit(FM_INTTASK_RUNNING, &fmdev->flag)) {
/* Fill command header info */
- hdr = (struct fm_cmd_msg_hdr *)skb_put(skb, FM_CMD_MSG_HDR_SIZE);
+ hdr = skb_put(skb, FM_CMD_MSG_HDR_SIZE);
hdr->hdr = FM_PKT_LOGICAL_CHAN_NUMBER; /* 0x08 */
/* 3 (fm_opcode,rd_wr,dlen) + payload len) */
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