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| author | David Howells <dhowells@redhat.com> | 2016-09-30 14:26:03 +0200 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2016-09-30 15:39:28 +0200 |
| commit | 775e5b71db6aca47d49d43d08751f2e8ebad7f60 (patch) | |
| tree | 54beb3163dd5d3184d55cf8c46ae60fed3cbb963 /net/rxrpc/input.c | |
| parent | rxrpc: Reduce ssthresh to peer's receive window (diff) | |
| download | linux-775e5b71db6aca47d49d43d08751f2e8ebad7f60.tar.xz linux-775e5b71db6aca47d49d43d08751f2e8ebad7f60.zip | |
rxrpc: The offset field in struct rxrpc_skb_priv is unnecessary
The offset field in struct rxrpc_skb_priv is unnecessary as the value can
always be calculated.
Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'net/rxrpc/input.c')
| -rw-r--r-- | net/rxrpc/input.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c index 7993473e56bb..5ba35b4a907b 100644 --- a/net/rxrpc/input.c +++ b/net/rxrpc/input.c @@ -358,7 +358,7 @@ static bool rxrpc_receiving_reply(struct rxrpc_call *call) static bool rxrpc_validate_jumbo(struct sk_buff *skb) { struct rxrpc_skb_priv *sp = rxrpc_skb(skb); - unsigned int offset = sp->offset; + unsigned int offset = sizeof(struct rxrpc_wire_header); unsigned int len = skb->len; int nr_jumbo = 1; u8 flags = sp->hdr.flags; @@ -419,7 +419,7 @@ static void rxrpc_input_data(struct rxrpc_call *call, struct sk_buff *skb, u16 skew) { struct rxrpc_skb_priv *sp = rxrpc_skb(skb); - unsigned int offset = sp->offset; + unsigned int offset = sizeof(struct rxrpc_wire_header); unsigned int ix; rxrpc_serial_t serial = sp->hdr.serial, ack_serial = 0; rxrpc_seq_t seq = sp->hdr.seq, hard_ack; @@ -746,15 +746,16 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb, } buf; rxrpc_serial_t acked_serial; rxrpc_seq_t first_soft_ack, hard_ack; - int nr_acks, offset; + int nr_acks, offset, ioffset; _enter(""); - if (skb_copy_bits(skb, sp->offset, &buf.ack, sizeof(buf.ack)) < 0) { + offset = sizeof(struct rxrpc_wire_header); + if (skb_copy_bits(skb, offset, &buf.ack, sizeof(buf.ack)) < 0) { _debug("extraction failure"); return rxrpc_proto_abort("XAK", call, 0); } - sp->offset += sizeof(buf.ack); + offset += sizeof(buf.ack); acked_serial = ntohl(buf.ack.serial); first_soft_ack = ntohl(buf.ack.firstPacket); @@ -792,9 +793,9 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb, rxrpc_propose_ack_respond_to_ack); } - offset = sp->offset + nr_acks + 3; - if (skb->len >= offset + sizeof(buf.info)) { - if (skb_copy_bits(skb, offset, &buf.info, sizeof(buf.info)) < 0) + ioffset = offset + nr_acks + 3; + if (skb->len >= ioffset + sizeof(buf.info)) { + if (skb_copy_bits(skb, ioffset, &buf.info, sizeof(buf.info)) < 0) return rxrpc_proto_abort("XAI", call, 0); rxrpc_input_ackinfo(call, skb, &buf.info); } @@ -832,7 +833,7 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb, rxrpc_rotate_tx_window(call, hard_ack, &summary); if (nr_acks > 0) { - if (skb_copy_bits(skb, sp->offset, buf.acks, nr_acks) < 0) + if (skb_copy_bits(skb, offset, buf.acks, nr_acks) < 0) return rxrpc_proto_abort("XSA", call, 0); rxrpc_input_soft_acks(call, buf.acks, first_soft_ack, nr_acks, &summary); @@ -880,7 +881,8 @@ static void rxrpc_input_abort(struct rxrpc_call *call, struct sk_buff *skb) _enter(""); if (skb->len >= 4 && - skb_copy_bits(skb, sp->offset, &wtmp, sizeof(wtmp)) >= 0) + skb_copy_bits(skb, sizeof(struct rxrpc_wire_header), + &wtmp, sizeof(wtmp)) >= 0) abort_code = ntohl(wtmp); _proto("Rx ABORT %%%u { %x }", sp->hdr.serial, abort_code); @@ -996,7 +998,6 @@ int rxrpc_extract_header(struct rxrpc_skb_priv *sp, struct sk_buff *skb) sp->hdr.securityIndex = whdr.securityIndex; sp->hdr._rsvd = ntohs(whdr._rsvd); sp->hdr.serviceId = ntohs(whdr.serviceId); - sp->offset = sizeof(whdr); return 0; } |