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| author | Michael Brown | 2010-11-08 03:51:18 +0100 |
|---|---|---|
| committer | Michael Brown | 2010-11-08 04:15:28 +0100 |
| commit | ea631f6fb8dbffe3081ecf29eafa62ecd38ec64f (patch) | |
| tree | f27d347fc48c524e172a4bdeea80976a26b9904a /src/net/tcp.c | |
| parent | [list] Extend list-manipulation assertions to all list-handling functions (diff) | |
| download | ipxe-ea631f6fb8dbffe3081ecf29eafa62ecd38ec64f.tar.gz ipxe-ea631f6fb8dbffe3081ecf29eafa62ecd38ec64f.tar.xz ipxe-ea631f6fb8dbffe3081ecf29eafa62ecd38ec64f.zip | |
[list] Add list_first_entry()
There are several points in the iPXE codebase where
list_for_each_entry() is (ab)used to extract only the first entry from
a list. Add a macro list_first_entry() to make this code easier to
read.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/net/tcp.c')
| -rw-r--r-- | src/net/tcp.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/src/net/tcp.c b/src/net/tcp.c index 1c824bdf..42064034 100644 --- a/src/net/tcp.c +++ b/src/net/tcp.c @@ -1014,9 +1014,8 @@ static void tcp_process_rx_queue ( struct tcp_connection *tcp ) { * queue, since tcp_discard() may remove packets from the RX * queue while we are processing. */ - while ( ! list_empty ( &tcp->rx_queue ) ) { - list_for_each_entry ( iobuf, &tcp->rx_queue, list ) - break; + while ( ( iobuf = list_first_entry ( &tcp->rx_queue, struct io_buffer, + list ) ) ) { /* Stop processing when we hit the first gap */ tcpqhdr = iobuf->data; |