13 Jan, 2012
1 commit
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commit a9b3cd7f32 (rcu: convert uses of rcu_assign_pointer(x, NULL) to
RCU_INIT_POINTER) did a lot of incorrect changes, since it did a
complete conversion of rcu_assign_pointer(x, y) to RCU_INIT_POINTER(x,
y).We miss needed barriers, even on x86, when y is not NULL.
Signed-off-by: Eric Dumazet
CC: Stephen Hemminger
CC: Paul E. McKenney
Signed-off-by: David S. Miller
30 Nov, 2011
1 commit
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Commit 7dc00c82 added a 'notify' parameter for vif_delete() to
distinguish whether to unregister the device.When notify=1 means we does not need to unregister the device,
so calling unregister_netdevice_many is useless.Signed-off-by: RongQing.Li
Signed-off-by: David S. Miller
01 Nov, 2011
1 commit
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These files are non modular, but need to export symbols using
the macros now living in export.h -- call out the include so
that things won't break when we remove the implicit presence
of module.h from everywhere.Signed-off-by: Paul Gortmaker
12 Aug, 2011
1 commit
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RCU api had been completed and rcu_access_pointer() or
rcu_dereference_protected() are better than generic
rcu_dereference_raw()Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller
02 Aug, 2011
1 commit
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When assigning a NULL value to an RCU protected pointer, no barrier
is needed. The rcu_assign_pointer, used to handle that but will soon
change to not handle the special case.Convert all rcu_assign_pointer of NULL value.
//smpl
@@ expression P; @@- rcu_assign_pointer(P, NULL)
+ RCU_INIT_POINTER(P, NULL)//
Signed-off-by: Stephen Hemminger
Acked-by: Paul E. McKenney
Signed-off-by: David S. Miller
24 Jul, 2011
1 commit
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rt_tos was changed to iph->tos but it must be filtered by RT_TOS
Signed-off-by: Julian Anastasov
Signed-off-by: David S. Miller
10 Jun, 2011
1 commit
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The message size allocated for rtnl ifinfo dumps was limited to
a single page. This is not enough for additional interface info
available with devices that support SR-IOV and caused a bug in
which VF info would not be displayed if more than approximately
40 VFs were created per interface.Implement a new function pointer for the rtnl_register service that will
calculate the amount of data required for the ifinfo dump and allocate
enough data to satisfy the request.Signed-off-by: Greg Rose
Signed-off-by: Jeff Kirsher
05 May, 2011
1 commit
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This eliminates the need to use rt->rt_{src,dst}.
Signed-off-by: David S. Miller
04 May, 2011
2 commits
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Signed-off-by: David S. Miller
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Use information from the skb as much as possible, currently
this means daddr, saddr, and TOS.Signed-off-by: David S. Miller
23 Apr, 2011
1 commit
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Add const qualifiers to structs iphdr, ipv6hdr and in6_addr pointers
where possible, to make code intention more obvious.Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller
13 Mar, 2011
3 commits
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Signed-off-by: David S. Miller
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I intend to turn struct flowi into a union of AF specific flowi
structs. There will be a common structure that each variant includes
first, much like struct sock_common.This is the first step to move in that direction.
Signed-off-by: David S. Miller
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The idea here is this minimizes the number of places one has to edit
in order to make changes to how flows are defined and used.Signed-off-by: David S. Miller
10 Mar, 2011
1 commit
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Create a common helper for this operation, since we do
it identically in three spots.Suggested by Eric Dumazet.
Signed-off-by: David S. Miller
05 Mar, 2011
1 commit
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The only necessary parts are the src/dst addresses, the
interface indexes, the TOS, and the mark.The rest is unnecessary bloat, which amounts to nearly
50 bytes on 64-bit.Signed-off-by: David S. Miller
03 Mar, 2011
1 commit
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Instead of on the stack.
Signed-off-by: David S. Miller
04 Feb, 2011
2 commits
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Signed-off-by: David S. Miller
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Commit 709b46e8d90badda1898caea50483c12af178e96 ("net: Add compat
ioctl support for the ipv4 multicast ioctl SIOCGETSGCNT") added the
correct plumbing to handle SIOCGETSGCNT properly.However, whilst definiting a proper "struct compat_sioc_sg_req" it
isn't actually used in ipmr_compat_ioctl().Correct this oversight.
Signed-off-by: David S. Miller
30 Jan, 2011
1 commit
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SIOCGETSGCNT is not a unique ioctl value as it it maps tio SIOCPROTOPRIVATE +1,
which unfortunately means the existing infrastructure for compat networking
ioctls is insufficient. A trivial compact ioctl implementation would conflict
with:SIOCAX25ADDUID
SIOCAIPXPRISLT
SIOCGETSGCNT_IN6
SIOCGETSGCNT
SIOCRSSCAUSE
SIOCX25SSUBSCRIP
SIOCX25SDTEFACILITIESTo make this work I have updated the compat_ioctl decode path to mirror the
the normal ioctl decode path. I have added an ipv4 inet_compat_ioctl function
so that I can have ipv4 specific compat ioctls. I have added a compat_ioctl
function into struct proto so I can break out ioctls by which kind of ip socket
I am using. I have added a compat_raw_ioctl function because SIOCGETSGCNT only
works on raw sockets. I have added a ipmr_compat_ioctl that mirrors the normal
ipmr_ioctl.This was necessary because unfortunately the struct layout for the SIOCGETSGCNT
has unsigned longs in it so changes between 32bit and 64bit kernels.This change was sufficient to run a 32bit ip multicast routing daemon on a
64bit kernel.Reported-by: Bill Fenner
Signed-off-by: Eric W. Biederman
Signed-off-by: David S. Miller
18 Nov, 2010
1 commit
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Use the macros defined for the members of flowi to clean the code up.
Signed-off-by: Changli Gao
Signed-off-by: David S. Miller
12 Nov, 2010
1 commit
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When we test rt->fl.iif against zero, we're seeing if it's
an output or an input route.Make that explicit with some helper functions.
Signed-off-by: David S. Miller
04 Oct, 2010
4 commits
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Various code style cleanups
Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller -
Use RCU & RTNL protection for mfc_cache_array[]
ipmr_cache_find() is called under rcu_read_lock();
Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller -
Use RCU and RTNL to protect (struct mr_table)->mroute_sk
Readers use RCU, writers use RTNL.
ip_ra_control() already use an RCU grace period before
ip_ra_destroy_rcu(), so we dont need synchronize_rcu() in
mrtsock_destruct()Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller -
No need to get a reference on reg_dev and release it, we are in a
rcu_read_lock() protected section.Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller
16 Sep, 2010
1 commit
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dev->ip_ptr is protected by rtnl and rcu.
Yet some places dont use appropriate primitives and/or locking rules.
Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller
21 Jul, 2010
1 commit
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Conflicts:
drivers/vhost/net.c
net/bridge/br_device.cFix merge conflict in drivers/vhost/net.c with guidance from
Stephen Rothwell.Revert the effects of net-2.6 commit 573201f36fd9c7c6d5218cdcd9948cee700b277d
since net-next-2.6 has fixes that make bridge netpoll work properly thus
we don't need it disabled.Signed-off-by: David S. Miller
16 Jul, 2010
1 commit
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This was detected using two mcast router tables. The
pimreg for the second interface did not have a specific
mrule, so packets received by it were handled by the
default table, which had nothing configured.This caused the ipmr_fib_lookup to fail, causing
the memory leak.Signed-off-by: Ben Greear
Signed-off-by: David S. Miller
12 Jun, 2010
1 commit
11 Jun, 2010
1 commit
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remove useless union keyword in rtable, rt6_info and dn_route.
Since there is only one member in a union, the union keyword isn't useful.
Signed-off-by: Changli Gao
Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller
07 Jun, 2010
1 commit
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ipmr_rules_exit() and ip6mr_rules_exit() free a list of items, but
forget to properly remove these items from list. List head is not
changed and still points to freed memory.This can trigger a fault later when icmpv6_sk_exit() is called.
Fix is to either reinit list, or use list_del() to properly remove items
from list before freeing them.bugzilla report : https://bugzilla.kernel.org/show_bug.cgi?id=16120
Introduced by commit d1db275dd3f6e4 (ipv6: ip6mr: support multiple
tables) and commit f0ad0860d01e (ipv4: ipmr: support multiple tables)Reported-by: Alex Zhavnerchik
Signed-off-by: Eric Dumazet
CC: Patrick McHardy
Signed-off-by: David S. Miller
26 May, 2010
1 commit
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This fixes a smatch warning:
net/ipv4/ipmr.c +1917 __ipmr_fill_mroute(12) error: buffer overflow
'(mrt)->vif_table' 32
Signed-off-by: David S. Miller
21 May, 2010
2 commits
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1674 commits)
qlcnic: adding co maintainer
ixgbe: add support for active DA cables
ixgbe: dcb, do not tag tc_prio_control frames
ixgbe: fix ixgbe_tx_is_paused logic
ixgbe: always enable vlan strip/insert when DCB is enabled
ixgbe: remove some redundant code in setting FCoE FIP filter
ixgbe: fix wrong offset to fc_frame_header in ixgbe_fcoe_ddp
ixgbe: fix header len when unsplit packet overflows to data buffer
ipv6: Never schedule DAD timer on dead address
ipv6: Use POSTDAD state
ipv6: Use state_lock to protect ifa state
ipv6: Replace inet6_ifaddr->dead with state
cxgb4: notify upper drivers if the device is already up when they load
cxgb4: keep interrupts available when the ports are brought down
cxgb4: fix initial addition of MAC address
cnic: Return SPQ credit to bnx2x after ring setup and shutdown.
cnic: Convert cnic_local_flags to atomic ops.
can: Fix SJA1000 command register writes on SMP systems
bridge: fix build for CONFIG_SYSFS disabled
ARCNET: Limit com20020 PCI ID matches for SOHARD cards
...Fix up various conflicts with pcmcia tree drivers/net/
{pcmcia/3c589_cs.c, wireless/orinoco/orinoco_cs.c and
wireless/orinoco/spectrum_cs.c} and feature removal
(Documentation/feature-removal-schedule.txt).Also fix a non-content conflict due to pm_qos_requirement getting
renamed in the PM tree (now pm_qos_request) in net/mac80211/scan.c -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (44 commits)
vlynq: make whole Kconfig-menu dependant on architecture
add descriptive comment for TIF_MEMDIE task flag declaration.
EEPROM: max6875: Header file cleanup
EEPROM: 93cx6: Header file cleanup
EEPROM: Header file cleanup
agp: use NULL instead of 0 when pointer is needed
rtc-v3020: make bitfield unsigned
PCI: make bitfield unsigned
jbd2: use NULL instead of 0 when pointer is needed
cciss: fix shadows sparse warning
doc: inode uses a mutex instead of a semaphore.
uml: i386: Avoid redefinition of NR_syscalls
fix "seperate" typos in comments
cocbalt_lcdfb: correct sections
doc: Change urls for sparse
Powerpc: wii: Fix typo in comment
i2o: cleanup some exit paths
Documentation/: it's -> its where appropriate
UML: Fix compiler warning due to missing task_struct declaration
UML: add kernel.h include to signal.c
...
18 May, 2010
2 commits
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This patch removes from net/ (but not any netfilter files)
all the unnecessary return; statements that precede the
last closing brace of void functions.It does not remove the returns that are immediately
preceded by a label as gcc doesn't like that.Done via:
$ grep -rP --include=*.[ch] -l "return;\n}" net/ | \
xargs perl -i -e 'local $/ ; while (<>) { s/\n[ \t\n]+return;\n}/\n}/g; print; }'Signed-off-by: Joe Perches
Signed-off-by: David S. Miller -
skb rxhash should be cleared when a skb is handled by a tunnel before
being delivered again, so that correct packet steering can take place.There are other cleanups and accounting that we can factorize in a new
helper, skb_tunnel_rx()Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller
12 May, 2010
1 commit
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Conflicts:
Documentation/feature-removal-schedule.txt
drivers/net/wireless/ath/ar9170/usb.c
drivers/scsi/iscsi_tcp.c
net/ipv4/ipmr.c
11 May, 2010
1 commit
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Conflicts:
net/bridge/br_device.c
net/bridge/br_forward.cSigned-off-by: Patrick McHardy
10 May, 2010
1 commit
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Fixes the expiration timer for unresolved multicast route entries.
In case new multicast routing requests come in faster than the
expiration timeout occurs (e.g. zap through multicast TV streams), the
timer is prevented from being called at time for already existing entries.As the single timer is resetted to default whenever a new entry is made,
the timeout for existing unresolved entires are missed and/or not
updated. As a consequence new requests are denied when the limit of
unresolved entries has been reached because old entries live longer than
they are supposed to.The solution is to reset the timer only for the first unresolved entry
in the multicast routing cache. All other timers are already set and
updated correctly within the timer function itself by now.Signed-off by: Andreas Meissner
Signed-off-by: David S. Miller
