diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2013-12-30 12:37:29 -0800 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2014-09-28 07:05:16 -0700 |
| commit | 7bced397510ab569d31de4c70b39e13355046387 (patch) | |
| tree | faa4067a53e42acffc752e9a153e7dbaed4126e5 /net/ipv6/tcp_ipv6.c | |
| parent | 08223d80df38e666a42d7c82eb340db55c6e03bd (diff) | |
| download | lwn-7bced397510ab569d31de4c70b39e13355046387.tar.gz lwn-7bced397510ab569d31de4c70b39e13355046387.zip | |
net_dma: simple removal
Per commit "77873803363c net_dma: mark broken" net_dma is no longer used
and there is no plan to fix it.
This is the mechanical removal of bits in CONFIG_NET_DMA ifdef guards.
Reverting the remainder of the net_dma induced changes is deferred to
subsequent patches.
Marked for stable due to Roman's report of a memory leak in
dma_pin_iovec_pages():
https://lkml.org/lkml/2014/9/3/177
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: David Whipple <whipple@securedatainnovations.ch>
Cc: Alexander Duyck <alexander.h.duyck@intel.com>
Cc: <stable@vger.kernel.org>
Reported-by: Roman Gushchin <klamm@yandex-team.ru>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'net/ipv6/tcp_ipv6.c')
| -rw-r--r-- | net/ipv6/tcp_ipv6.c | 13 |
1 files changed, 1 insertions, 12 deletions
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 889079b2ea85..cb21fccf2089 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -59,7 +59,6 @@ #include <net/snmp.h> #include <net/dsfield.h> #include <net/timewait_sock.h> -#include <net/netdma.h> #include <net/inet_common.h> #include <net/secure_seq.h> #include <net/tcp_memcontrol.h> @@ -1520,18 +1519,8 @@ process: bh_lock_sock_nested(sk); ret = 0; if (!sock_owned_by_user(sk)) { -#ifdef CONFIG_NET_DMA - struct tcp_sock *tp = tcp_sk(sk); - if (!tp->ucopy.dma_chan && tp->ucopy.pinned_list) - tp->ucopy.dma_chan = net_dma_find_channel(); - if (tp->ucopy.dma_chan) + if (!tcp_prequeue(sk, skb)) ret = tcp_v6_do_rcv(sk, skb); - else -#endif - { - if (!tcp_prequeue(sk, skb)) - ret = tcp_v6_do_rcv(sk, skb); - } } else if (unlikely(sk_add_backlog(sk, skb, sk->sk_rcvbuf + sk->sk_sndbuf))) { bh_unlock_sock(sk); |