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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 17:48:39 +0200
commit4df864c1d9afb46e2461a9f808d9f11a42d31bad (patch)
tree07e7b3d16b161e0d199c5b8116df277798566e4f /drivers/isdn/gigaset
parentnetworking: introduce and use skb_put_data() (diff)
downloadlinux-4df864c1d9afb46e2461a9f808d9f11a42d31bad.tar.xz
linux-4df864c1d9afb46e2461a9f808d9f11a42d31bad.zip
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/isdn/gigaset')
-rw-r--r--drivers/isdn/gigaset/asyncdata.c26
-rw-r--r--drivers/isdn/gigaset/isocdata.c2
2 files changed, 14 insertions, 14 deletions
diff --git a/drivers/isdn/gigaset/asyncdata.c b/drivers/isdn/gigaset/asyncdata.c
index c90dca5abeac..03ac9fbfe318 100644
--- a/drivers/isdn/gigaset/asyncdata.c
+++ b/drivers/isdn/gigaset/asyncdata.c
@@ -264,7 +264,7 @@ byte_stuff:
/* skip remainder of packet */
bcs->rx_skb = skb = NULL;
} else {
- *__skb_put(skb, 1) = c;
+ *(u8 *)__skb_put(skb, 1) = c;
fcs = crc_ccitt_byte(fcs, c);
}
}
@@ -315,7 +315,7 @@ static unsigned iraw_loop(unsigned numbytes, struct inbuf_t *inbuf)
/* regular data byte: append to current skb */
inputstate |= INS_have_data;
- *__skb_put(skb, 1) = bitrev8(c);
+ *(u8 *)__skb_put(skb, 1) = bitrev8(c);
}
/* pass data up */
@@ -492,33 +492,33 @@ static struct sk_buff *HDLC_Encode(struct sk_buff *skb)
hdlc_skb->mac_len = skb->mac_len;
/* Add flag sequence in front of everything.. */
- *(skb_put(hdlc_skb, 1)) = PPP_FLAG;
+ *(u8 *)skb_put(hdlc_skb, 1) = PPP_FLAG;
/* Perform byte stuffing while copying data. */
while (skb->len--) {
if (muststuff(*skb->data)) {
- *(skb_put(hdlc_skb, 1)) = PPP_ESCAPE;
- *(skb_put(hdlc_skb, 1)) = (*skb->data++) ^ PPP_TRANS;
+ *(u8 *)skb_put(hdlc_skb, 1) = PPP_ESCAPE;
+ *(u8 *)skb_put(hdlc_skb, 1) = (*skb->data++) ^ PPP_TRANS;
} else
- *(skb_put(hdlc_skb, 1)) = *skb->data++;
+ *(u8 *)skb_put(hdlc_skb, 1) = *skb->data++;
}
/* Finally add FCS (byte stuffed) and flag sequence */
c = (fcs & 0x00ff); /* least significant byte first */
if (muststuff(c)) {
- *(skb_put(hdlc_skb, 1)) = PPP_ESCAPE;
+ *(u8 *)skb_put(hdlc_skb, 1) = PPP_ESCAPE;
c ^= PPP_TRANS;
}
- *(skb_put(hdlc_skb, 1)) = c;
+ *(u8 *)skb_put(hdlc_skb, 1) = c;
c = ((fcs >> 8) & 0x00ff);
if (muststuff(c)) {
- *(skb_put(hdlc_skb, 1)) = PPP_ESCAPE;
+ *(u8 *)skb_put(hdlc_skb, 1) = PPP_ESCAPE;
c ^= PPP_TRANS;
}
- *(skb_put(hdlc_skb, 1)) = c;
+ *(u8 *)skb_put(hdlc_skb, 1) = c;
- *(skb_put(hdlc_skb, 1)) = PPP_FLAG;
+ *(u8 *)skb_put(hdlc_skb, 1) = PPP_FLAG;
dev_kfree_skb_any(skb);
return hdlc_skb;
@@ -561,8 +561,8 @@ static struct sk_buff *iraw_encode(struct sk_buff *skb)
while (len--) {
c = bitrev8(*cp++);
if (c == DLE_FLAG)
- *(skb_put(iraw_skb, 1)) = c;
- *(skb_put(iraw_skb, 1)) = c;
+ *(u8 *)skb_put(iraw_skb, 1) = c;
+ *(u8 *)skb_put(iraw_skb, 1) = c;
}
dev_kfree_skb_any(skb);
return iraw_skb;
diff --git a/drivers/isdn/gigaset/isocdata.c b/drivers/isdn/gigaset/isocdata.c
index bc29f1d52a2f..74e250664ce9 100644
--- a/drivers/isdn/gigaset/isocdata.c
+++ b/drivers/isdn/gigaset/isocdata.c
@@ -511,7 +511,7 @@ static inline void hdlc_putbyte(unsigned char c, struct bc_state *bcs)
bcs->rx_skb = NULL;
return;
}
- *__skb_put(bcs->rx_skb, 1) = c;
+ *(u8 *)__skb_put(bcs->rx_skb, 1) = c;
}
/* hdlc_flush