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authorJoe Perches <joe@perches.com>2012-06-03 17:41:40 +0000
committerDavid S. Miller <davem@davemloft.net>2012-06-04 11:45:11 -0400
commite3192690a3c889767d1161b228374f4926d92af0 (patch)
treea2acbe06cc2efedb6002055f9d4ffd7f2ba6ec75 /net/packet
parent29a6b6c060445eb46528785d51a2d8b0e6d898c4 (diff)
downloadlinux-e3192690a3c889767d1161b228374f4926d92af0.tar.gz
net: Remove casts to same type
Adding casts of objects to the same type is unnecessary
and confusing for a human reader.

For example, this cast:

	int y;
	int *p = (int *)&y;

I used the coccinelle script below to find and remove these
unnecessary casts.  I manually removed the conversions this
script produces of casts with __force and __user.

@@
type T;
T *p;
@@

-	(T *)p
+	p

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/packet')
-rw-r--r--net/packet/af_packet.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 0f661745df0f..71ac6559e0c6 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -592,7 +592,7 @@ static void init_prb_bdqc(struct packet_sock *po,
 	p1->knxt_seq_num = 1;
 	p1->pkbdq = pg_vec;
 	pbd = (struct tpacket_block_desc *)pg_vec[0].buffer;
-	p1->pkblk_start	= (char *)pg_vec[0].buffer;
+	p1->pkblk_start	= pg_vec[0].buffer;
 	p1->kblk_size = req_u->req3.tp_block_size;
 	p1->knum_blocks	= req_u->req3.tp_block_nr;
 	p1->hdrlen = po->tp_hdrlen;
@@ -824,8 +824,7 @@ static void prb_open_block(struct tpacket_kbdq_core *pkc1,
 		h1->ts_first_pkt.ts_sec = ts.tv_sec;
 		h1->ts_first_pkt.ts_nsec = ts.tv_nsec;
 		pkc1->pkblk_start = (char *)pbd1;
-		pkc1->nxt_offset = (char *)(pkc1->pkblk_start +
-		BLK_PLUS_PRIV(pkc1->blk_sizeof_priv));
+		pkc1->nxt_offset = pkc1->pkblk_start + BLK_PLUS_PRIV(pkc1->blk_sizeof_priv);
 		BLOCK_O2FP(pbd1) = (__u32)BLK_PLUS_PRIV(pkc1->blk_sizeof_priv);
 		BLOCK_O2PRIV(pbd1) = BLK_HDR_LEN;
 		pbd1->version = pkc1->version;
@@ -1018,7 +1017,7 @@ static void *__packet_lookup_frame_in_block(struct packet_sock *po,
 	struct tpacket_block_desc *pbd;
 	char *curr, *end;
 
-	pkc = GET_PBDQC_FROM_RB(((struct packet_ring_buffer *)&po->rx_ring));
+	pkc = GET_PBDQC_FROM_RB(&po->rx_ring);
 	pbd = GET_CURR_PBLOCK_DESC_FROM_CORE(pkc);
 
 	/* Queue is frozen when user space is lagging behind */
@@ -1044,7 +1043,7 @@ static void *__packet_lookup_frame_in_block(struct packet_sock *po,
 	smp_mb();
 	curr = pkc->nxt_offset;
 	pkc->skb = skb;
-	end = (char *) ((char *)pbd + pkc->kblk_size);
+	end = (char *)pbd + pkc->kblk_size;
 
 	/* first try the current block */
 	if (curr+TOTAL_PKT_LEN_INCL_ALIGN(len) < end) {