lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Fri, 26 Oct 2007 04:19:06 -0700 (PDT)
From:	David Miller <>
Subject: Re: [2.6 patch] unexport softnet_data

From: Adrian Bunk <>
Date: Wed, 24 Oct 2007 18:24:25 +0200

> The EXPORT_PER_CPU_SYMBOL(softnet_data) is no longer used.
> Signed-off-by: Adrian Bunk <>

I wanted to apply this, but in validing the patch I noticed
what appears to be an omission in TCP ipv6.

It seems that NET_DMA support there is only half-cooked and
the following patch is needed (and thus there is a modular
use of softnet_data again).

Looking at Christopher Leech's original TCP I/O AT commit:


this appears to just be an oversight.

If one of the current I/O AT folks can look this over and
confirm I'd appreciate it.


[TCP]: Add missing I/O AT code to ipv6 side.

Signed-off-by: David S. Miller <>

diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 32dc329..06fa4ba 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1732,6 +1732,8 @@ process:
 	if (!sock_owned_by_user(sk)) {
 		struct tcp_sock *tp = tcp_sk(sk);
+		if (!tp->ucopy.dma_chan && tp->ucopy.pinned_list)
+			tp->ucopy.dma_chan = get_softnet_dma();
 		if (tp->ucopy.dma_chan)
 			ret = tcp_v6_do_rcv(sk, skb);
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to
More majordomo info at

Powered by blists - more mailing lists