Commit Graph

201145 Commits

Author SHA1 Message Date
David S. Miller 00dad5e479 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/e1000e/hw.h
	net/bridge/br_device.c
	net/bridge/br_input.c
2010-08-02 22:22:46 -07:00
Cyril Chemparathy c477d0447d phy/marvell: add 88e1121 interface mode support
This patch adds support for RGMII RX/TX delay configuration on marvell 88e1121
and derivatives.  With this patch, PHY_INTERFACE_MODE_RGMII_*ID modes are now
supported on these devices.

Signed-off-by: Cyril Chemparathy <cyril@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 22:07:45 -07:00
stephen hemminger 66d50d2550 u32: negative offset fix
It was possible to use a negative offset in a u32 match to reference
the ethernet header or other parts of the link layer header.
This fixes the regression caused by:

commit fbc2e7d9cf
Author: Changli Gao <xiaosuo@gmail.com>
Date:   Wed Jun 2 07:32:42 2010 -0700

    cls_u32: use skb_header_pointer() to dereference data safely

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 22:07:45 -07:00
Henrique Camargo eabd8ba906 net: Fix a typo from "dev" to "ndev"
The typo was causing compilation errors since "dev" was not defined.

Signed-off-by: Henrique Camargo <henrique.camargo@ensitec.com.br>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 22:03:03 -07:00
Emil Tantilov 81a618595a igb: Use irq_synchronize per vector when using MSI-X
Synchronize all IRQs when using MSI-X. Similar to ixgbe.
Issue was reported on e1000e, but the patch is also valid for igb.

CC: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 21:20:22 -07:00
Alexander Duyck 3bfacf96ab ixgbevf: fix null pointer dereference due to filter being set for VLAN 0
This change corrects an issue that resulted in a null pointer dereference
for the addition of VLAN 0 without any VLANs being registered.  Also this
code removes some unnecessary checks for defines and the unnecessary setting
of VLAN flags since that is now handled within the kernel via the
vlan_features.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Emil Tantilov <emil.s.tantilov@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 21:20:21 -07:00
Jeff Kirsher 8e86acd7d5 e1000e: Fix irq_synchronize in MSI-X case
Based on original patch/work from Jean Delvare <jdelvare@suse.de>
Synchronize all IRQs when in MSI-X IRQ mode.

Jean's original patch hard coded the sync with the 3 possible vectors,
this patch incorporates more flexibility for the future and aligns
with how igb stores the number of vectors into the adapter structure.

CC: Jean Delvare <jdelvare@suse.de>
Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Acked-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 21:20:21 -07:00
Florian Mickler c128ec2920 e1000e: register pm_qos request on hardware activation
The pm_qos_add_request call has to register the pm_qos request with the pm_qos
susbsystem before first use of the pm_qos request via
pm_qos_update_request.

As pm_qos changed to use plists there is no benefit in registering and
unregistering the pm_qos request on ifup/ifdown and thus we move the
registering into e1000_open and the unregistering in e1000_close.

This fixes the following warning:

[    1.786060] WARNING: at kernel/pm_qos_params.c:264
pm_qos_update_request+0x28/0x54()
[    1.786088] Hardware name: Latitude E6500
[    1.787045] pm_qos_update_request() called for unknown object
[    1.787966] Modules linked in:
[    1.788940] Pid: 1, comm: swapper Not tainted 2.6.35-rc5-mmotm0719 #1
[    1.790035] Call Trace:
[    1.791121]  [<ffffffff81037335>] warn_slowpath_common+0x80/0x98
[    1.792205]  [<ffffffff810373e1>] warn_slowpath_fmt+0x41/0x43
[    1.793279]  [<ffffffff81057c14>] pm_qos_update_request+0x28/0x54
[    1.794347]  [<ffffffff8134889e>] e1000_configure+0x421/0x459
[    1.795393]  [<ffffffff8134afbd>] e1000_open+0xbd/0x37c
[    1.796436]  [<ffffffff8105743a>] ? raw_notifier_call_chain+0xf/0x11
[    1.797491]  [<ffffffff8145f948>] __dev_open+0xae/0xe2
[    1.798547]  [<ffffffff8145f997>] dev_open+0x1b/0x49
[    1.799612]  [<ffffffff8146e36e>] netpoll_setup+0x84/0x259
[    1.800685]  [<ffffffff81b5037c>] init_netconsole+0xbc/0x21f
[    1.801744]  [<ffffffff81b5026c>] ? sir_wq_init+0x0/0x35
[    1.802793]  [<ffffffff81b502c0>] ? init_netconsole+0x0/0x21f
[    1.803845]  [<ffffffff810002ff>] do_one_initcall+0x7a/0x12f
[    1.804885]  [<ffffffff81b2ccae>] kernel_init+0x138/0x1c2
[    1.805915]  [<ffffffff81003554>] kernel_thread_helper+0x4/0x10
[    1.806937]  [<ffffffff81590e00>] ? restore_args+0x0/0x30
[    1.807955]  [<ffffffff81b2cb76>] ? kernel_init+0x0/0x1c2
[    1.808958]  [<ffffffff81003550>] ? kernel_thread_helper+0x0/0x10
[    1.809958] ---[ end trace 84b562a00a60539e ]---

Signed-off-by: Florian Mickler <florian@mickler.org>
Tested-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 21:20:20 -07:00
Changli Gao c893b8066c ip_fragment: fix subtracting PPPOE_SES_HLEN from mtu twice
6c79bf0f24 subtracts PPPOE_SES_HLEN from mtu at
the front of ip_fragment(). So the later subtraction should be removed. The
MTU of 802.1q is also 1500, so MTU should not be changed.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: Bart De Schuymer <bdschuym@pandora.bo>
----
 net/ipv4/ip_output.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
Signed-off-by: Bart De Schuymer <bdschuym@pandora.bo>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 17:25:07 -07:00
Josh Hunt 3c0fef0b7d net: Add getsockopt support for TCP thin-streams
Initial TCP thin-stream commit did not add getsockopt support for the new
socket options: TCP_THIN_LINEAR_TIMEOUTS and TCP_THIN_DUPACK. This adds support
for them.

Signed-off-by: Josh Hunt <johunt@akamai.com>
Tested-by: Andreas Petlund <apetlund@simula.no>
Acked-by: Andreas Petlund <apetlund@simula.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 17:25:06 -07:00
Dimitris Michailidis 99e6d06521 cxgb4: update driver version
Signed-off-by: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 16:26:44 -07:00
Dimitris Michailidis ac50bed375 cxgb4: add new PCI IDs
Signed-off-by: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 16:26:44 -07:00
Dimitris Michailidis 7a3acb8528 cxgb4: fix wrong shift direction
Signed-off-by: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 16:26:43 -07:00
Dimitris Michailidis 060e0c752b cxgb4: support running the driver on PCI functions besides 0
Add support for running the driver on any PCI function.  Mostly this
entails replacing a constant 0 in a number of calls with the variable
function number.

Signed-off-by: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 16:26:43 -07:00
Dimitris Michailidis 35d3568204 cxgb4: advertise NETIF_F_TSO_ECN
The device supports TSO+ECN.

Signed-off-by: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 16:26:42 -07:00
Dimitris Michailidis 1ae970e0c0 cxgb4: get on-chip queue info from FW and create a memory window for them
Get info about the availability of Tx on-chip queues from FW and if they
are supported set up a memory window for them.  iw_cxgb4 will be using them.
Move the existing window setup later in the init sequence, after we have
collected the new info.

Signed-off-by: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 16:26:42 -07:00
Dimitris Michailidis 625ac6ae57 cxgb4: fix TSO descriptors
Commit 1704d74894 ("cxgb4vf: small changes
to message processing structures/macros") was incomplete and causes cxgb4
to write bad TSO descriptors.  Fix that up by reverting the offending part
of that commit and adjusting field accesses now that they are one level
deeper.

Signed-off-by: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 16:26:41 -07:00
Dimitris Michailidis ba5d3c66e0 cxgb4: don't offload Rx checksums for IPv6 fragments
The checksum provided by the device doesn't include the L3 headers,
as IPv6 expects.

Signed-off-by: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 16:26:41 -07:00
Dimitris Michailidis 63bcceec6e cxgb4: disable an interrupt that is neither used nor serviced
Signed-off-by: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 16:26:40 -07:00
Dan Carpenter a3f2279ea0 hp100: unmap memory on error path
There was an error path where "mem_ptr_virt" didn't get unmapped.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 16:08:43 -07:00
Krzysztof Hałasa 9292d8f20f Tulip: don't initialize SBE xT3E3 WAN ports.
SBE 2T3E3 cards use DECchips 21143 but they need a different driver.
Don't even try to use a normal tulip driver with them.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 16:03:29 -07:00
Joe Perches 3f326d4099 drivers/net/wan/farsync.c: Use standard pr_<level>
Remove locally defined equivalents

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 16:01:35 -07:00
David S. Miller 4fc6eb7d35 Merge branch 'vhost-net-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost 2010-08-02 15:54:07 -07:00
Matt Carlson 9ed6eda4fa tg3: Update version to 3.113
This patch updates the tg3 version to 3.113.

Reviewed-by: Benjamin Li <benli@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 15:46:33 -07:00
Matt Carlson f07e9af31e tg3: Migrate tg3_flags to phy_flags
This patch moves most of the phy related flag definitions over to the
phyflags member and changes the code accordingly.

Reviewed-by: Benjamin Li <benli@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 15:46:33 -07:00
Matt Carlson 80096068bc tg3: Create phy_flags and migrate phy_is_low_power
This patch deletes the link_config.phy_is_low_power flag and creates a
new phy_flags device member to store all phy related settings.  All the
code is converted accordingly.

Reviewed-by: Benjamin Li <benli@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 15:46:32 -07:00
Matt Carlson f08aa1a8b8 tg3: Add phy-related preprocessor constants
This patch replaces some instances of hardcoded phy register values with
preprocessor equivalents.

Reviewed-by: Benjamin Li <benli@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 15:46:32 -07:00
Matt Carlson 6ee7c0a0a5 tg3: Add error reporting to tg3_phydsp_write()
This patch adds error reporting to the tg3_phydsp_write() function and
converts a few more locations to use this function over the inlined
equivalent.

Reviewed-by: Benjamin Li <benli@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 15:46:31 -07:00
Matt Carlson f65aac166f tg3: Improve small packet performance
smp_mb() inside tg3_tx_avail() is used twice in the normal
tg3_start_xmit() path (see illustration below).  The full memory
barrier is only necessary during race conditions with tx completion.
We can speed up the tx path by replacing smp_mb() in tg3_tx_avail()
with a compiler barrier.  The compiler barrier is to force the
compiler to fetch the tx_prod and tx_cons from memory.

In the race condition between tg3_start_xmit() and tg3_tx(),
we have the following situation:

tg3_start_xmit()                       tg3_tx()
    if (!tg3_tx_avail())
        BUG();

    ...

    if (!tg3_tx_avail())
        netif_tx_stop_queue();         update_tx_index();
        smp_mb();                      smp_mb();
        if (tg3_tx_avail())            if (netif_tx_queue_stopped() &&
            netif_tx_wake_queue();         tg3_tx_avail())

With smp_mb() removed from tg3_tx_avail(), we need to add smp_mb() to
tg3_start_xmit() as shown above to properly order netif_tx_stop_queue()
and tg3_tx_avail() to check the ring index.  If it is not strictly
ordered, the tx queue can be stopped forever.

This improves performance by about 3% with 2 ports running
bi-directional 64-byte packets.

Reviewed-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 15:46:31 -07:00
Matt Carlson 67b284d476 tg3: Remove 5720, 5750, and 5750M
These devices were never released to the public.

Reviewed-by: Benjamin Li <benli@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 15:46:30 -07:00
Matt Carlson ecc796486f tg3: Detect APE firmware types
This patch adds code to determine the APE firmware type and report this
along with the firmware version.

Reviewed-by: Benjamin Li <benli@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 15:46:29 -07:00
Matt Carlson 8c69b1e702 tg3: Restrict ASPM workaround devlist
The ASPM workaround setting obtained from NVRAM only works with devices
older than 5717.  This patch enforces the restriction.

Reviewed-by: Benjamin Li <benli@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 15:46:29 -07:00
Matt Carlson f37500d3f6 tg3: Manage gphy power for CPMU-less devs only
This patch changes the code to only manage the PCIe gphy power for
CPMU-less devices only.  The CPMU takes over management for newer
chips.

Reviewed-by: Benjamin Li <benli@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 15:46:28 -07:00
Matt Carlson 88075d915b tg3: Don't access phy test ctrl reg for 5717+
The phy test register location has been repurposed for 5717+ devices.
This patch changes the code to avoid this location for these devices.

Reviewed-by: Benjamin Li <benli@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 15:46:28 -07:00
Matt Carlson c885e82469 tg3: Create TG3_FLG3_5717_PLUS flag
This patch creates a TG3_FLG3_5717_PLUS flag to collectively describe
the set of changes in the ASIC that will apply to all future chip
revisions.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 15:46:27 -07:00
Matt Carlson 774ee7525f tg3: Disable TSS also during tg3_close()
The TSS flag needs to be turned off during tg3_close().  If the device
fails to allocate more than one MSI-X vector the next time the device is
brought up, transmits will fail.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 15:46:27 -07:00
Matt Carlson 6de34cb963 tg3: Add 5784 ASIC rev to earlier PCIe MPS fix
tg3 commit e712699734 entitled
"tg3: Preserve PCIe MPS setting for new devs" attempted to ensure the
PCIe link negotiated Maximum Payload Size (MPS) setting was 128 bytes
for all devices that didn't support higher speeds.  The 5784 device was
mistakenly added to this list when it shouldn't have.  This patch
removes the 5784 ASIC rev devices from that list.

Reviewed-by: Benjamin Li <benli@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 15:46:26 -07:00
David S. Miller 83bf2e4089 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6 2010-08-02 15:07:58 -07:00
Changli Gao 6661481d5a netfilter: nf_conntrack_acct: use skb->len for accounting
use skb->len for accounting as xt_quota does. Since nf_conntrack works
at the network layer, skb_network_offset should always returns ZERO.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-08-02 17:56:28 +02:00
Changli Gao 2452a99dc0 netfilter: nf_nat: don't check if the tuple is unique when there isn't any other choice
The tuple got from unique_tuple() doesn't need to be really unique, so the
check for the unique tuple isn't necessary, when there isn't any other
choice. Eliminating the unnecessary nf_nat_used_tuple() can save some CPU
cycles too.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-08-02 17:35:49 +02:00
Changli Gao f43dc98b3b netfilter: nf_nat: make unique_tuple return void
The only user of unique_tuple() get_unique_tuple() doesn't care about the
return value of unique_tuple(), so make unique_tuple() return void (nothing).

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-08-02 17:20:54 +02:00
Changli Gao 794dbc1d71 netfilter: nf_nat: use local variable hdrlen
Use local variable hdrlen instead of ip_hdrlen(skb).

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-08-02 17:15:30 +02:00
Simon Horman 5c0d2374a1 ipvs: provide default ip_vs_conn_{in,out}_get_proto
This removes duplicate code by providing a default implementation
which is used by 3 of the 4 modules that provide these call.

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-08-02 17:12:44 +02:00
Simon Horman 2890a1573d ipvs: remove EXPERIMENTAL tag
IPVS was merged into the kernel quite a long time ago and
has been seeing wide-spread production use for even longer.

It seems appropriate for it to be no longer tagged as EXPERIMENTAL

Signed-off-as: Simon Horman <horms@verge.net.au>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-08-02 17:08:11 +02:00
Changli Gao ee92d37861 netfilter: nf_conntrack_extend: introduce __nf_ct_ext_exist()
some users of nf_ct_ext_exist() know ct->ext isn't NULL. For these users, the
check for ct->ext isn't necessary, the function __nf_ct_ext_exist() can be
used instead.

the type of the return value of nf_ct_ext_exist() is changed to bool.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-08-02 17:06:19 +02:00
Eric Dumazet 24b36f0193 netfilter: {ip,ip6,arp}_tables: dont block bottom half more than necessary
We currently disable BH for the whole duration of get_counters()

On machines with a lot of cpus and large tables, this might be too long.

We can disable preemption during the whole function, and disable BH only
while fetching counters for the current cpu.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-08-02 16:49:01 +02:00
Stephen Hemminger de38483010 net: ingress filter message limit
If user misconfigures ingress and causes a redirection loop, don't
overwhelm the log.  This is also a error case so make it unlikely.
Found by inspection, luckily not in real system.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-01 00:33:23 -07:00
Julia Lawall e2e0c7c9dd net/rose: Use GFP_ATOMIC
The other calls to kmalloc in the same function use GFP_ATOMIC, and indeed
two locks are held within the body of the function.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@ identifier f; @@

*f(...,GFP_ATOMIC,...)
... when != spin_unlock(...)
    when != read_unlock(...)
    when != write_unlock(...)
    when != read_unlock_irq(...)
    when != write_unlock_irq(...)
    when != read_unlock_irqrestore(...)
    when != write_unlock_irqrestore(...)
    when != spin_unlock_irq(...)
    when != spin_unlock_irqrestore(...)
*f(...,GFP_KERNEL,...)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-01 00:32:12 -07:00
Changli Gao 3a3dfb062c act_nat: the checksum of ICMP doesn't have pseudo header
after updating the value of the ICMP payload, inet_proto_csum_replace4() should
be called with zero pseudohdr.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-31 22:04:55 -07:00
Changli Gao 072d79a31a act_nat: fix wild pointer
pskb_may_pull() may change skb pointers, so adjust icmph after pskb_may_pull().

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-31 22:04:54 -07:00