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net: tcp: Removed copy of conn->unacked_len

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In the function tcp_send_data, the variable conn->unacked_len in copied
into a local variable pos. This value is only used in one location and
used mixed with the original conn->unacked_len.

This fix removes pos and switches to use conn->unacked_len everywhere
to reduce the chance of confusion. This does not functionally change the
code.

Signed-off-by: Sjors Hettinga <s.a.hettinga@gmail.com>
This commit is contained in:
Sjors Hettinga 2022-05-19 08:05:11 +02:00 • committed by Carles Cufí
commit 2d824f4811
1 changed files with 2 additions and 3 deletions
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5
subsys/net/ip/tcp.c
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@ -1006,10 +1006,9 @@ static int tcp_unsent_len(struct tcp *conn)
static int tcp_send_data(struct tcp *conn)
{
int ret = 0;
int pos, len;
int len;
struct net_pkt *pkt;
pos = conn->unacked_len;
len = MIN3(conn->send_data_total - conn->unacked_len,
conn->send_win - conn->unacked_len,
conn_mss(conn));
@ -1026,7 +1025,7 @@ static int tcp_send_data(struct tcp *conn)
goto out;
}
ret = tcp_pkt_peek(pkt, conn->send_data, pos, len);
ret = tcp_pkt_peek(pkt, conn->send_data, conn->unacked_len, len);
if (ret < 0) {
tcp_pkt_unref(pkt);
ret = -ENOBUFS;