netdev - [PATCH 0/9] netpoll: Cleanup received packet processing

lists.openwall.net		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 linux-cve-announce 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]

Message-ID: <87eh24uu3d.fsf_-_@xmission.com>
Date:	Fri, 14 Mar 2014 18:30:14 -0700
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	David Miller <davem@...emloft.net>
Cc:	stephen@...workplumber.org, eric.dumazet@...il.com,
	netdev@...r.kernel.org, xiyou.wangcong@...il.com, mpm@...enic.com,
	satyam.sharma@...il.com
Subject: [PATCH 0/9] netpoll: Cleanup received packet processing

This is the long-winded, careful, and polite version of removing the netpoll
receive packet processing.

First I untangle the code in small steps.  Then I modify the code to not
force reception and dropping of packets when we are transmiting a packet
with netpoll.  Finally I move all of the packet reception under
CONFIG_NETPOLL_TRAP and delete CONFIG_NETPOLL_TRAP.

If someone wants to do a stable backport it would take backporting
the first 18 patches that handle the budget == 0 in the networking
drivers, and the first 5 of these patches.

If anyone wants to resurrect netpoll packet reception someday it should
just be a matter of reverting the last patch.

Eric W. Biederman (9):
      netpoll: Pass budget into poll_napi
      netpoll: Visit all napi handlers in poll_napi
      netpoll: Warn if more packets are processed than are budgeted
      netpoll: Add netpoll_rx_processing
      netpoll: Don't drop all received packets.
      netpoll: Move netpoll_trap under CONFIG_NETPOLL_TRAP
      netpoll: Consolidate neigh_tx processing in service_neigh_queue
      netpoll: Move all receive processing under CONFIG_NETPOLL_TRAP
      netpoll: Remove dead packet receive code (CONFIG_NETPOLL_TRAP)

 drivers/net/Kconfig       |    5 -
 include/linux/netdevice.h |   17 --
 include/linux/netpoll.h   |   61 ------
 net/core/dev.c            |   11 +-
 net/core/netpoll.c        |  488 +--------------------------------------------
 5 files changed, 5 insertions(+), 577 deletions(-)

Eric
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html