Commit Graph

365 Commits

Author SHA1 Message Date
Zhu Yi 53eecb1be5 tipc: use limited socket backlog
Make tipc adapt to the limited socket backlog change.

Cc: Jon Maloy <jon.maloy@ericsson.com>
Cc: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-05 13:34:02 -08:00
Neil Horman d0021b252e tipc: Fix oops on send prior to entering networked mode (v3)
Fix TIPC to disallow sending to remote addresses prior to entering NET_MODE

user programs can oops the kernel by sending datagrams via AF_TIPC prior to
entering networked mode.  The following backtrace has been observed:

ID: 13459  TASK: ffff810014640040  CPU: 0   COMMAND: "tipc-client"
[exception RIP: tipc_node_select_next_hop+90]
RIP: ffffffff8869d3c3  RSP: ffff81002d9a5ab8  RFLAGS: 00010202
RAX: 0000000000000001  RBX: 0000000000000001  RCX: 0000000000000001
RDX: 0000000000000000  RSI: 0000000000000001  RDI: 0000000001001001
RBP: 0000000001001001   R8: 0074736575716552   R9: 0000000000000000
R10: ffff81003fbd0680  R11: 00000000000000c8  R12: 0000000000000008
R13: 0000000000000001  R14: 0000000000000001  R15: ffff810015c6ca00
ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
RIP: 0000003cbd8d49a3  RSP: 00007fffc84e0be8  RFLAGS: 00010206
RAX: 000000000000002c  RBX: ffffffff8005d116  RCX: 0000000000000000
RDX: 0000000000000008  RSI: 00007fffc84e0c00  RDI: 0000000000000003
RBP: 0000000000000000   R8: 00007fffc84e0c10   R9: 0000000000000010
R10: 0000000000000000  R11: 0000000000000246  R12: 0000000000000000
R13: 00007fffc84e0d10  R14: 0000000000000000  R15: 00007fffc84e0c30
ORIG_RAX: 000000000000002c  CS: 0033  SS: 002b

What happens is that, when the tipc module in inserted it enters a standalone
node mode in which communication to its own address is allowed <0.0.0> but not
to other addresses, since the appropriate data structures have not been
allocated yet (specifically the tipc_net pointer).  There is nothing stopping a
client from trying to send such a message however, and if that happens, we
attempt to dereference tipc_net.zones while the pointer is still NULL, and
explode.  The fix is pretty straightforward.  Since these oopses all arise from
the dereference of global pointers prior to their assignment to allocated
values, and since these allocations are small (about 2k total), lets convert
these pointers to static arrays of the appropriate size.  All the accesses to
these bits consider 0/NULL to be a non match when searching, so all the lookups
still work properly, and there is no longer a chance of a bad dererence
anywhere.  As a bonus, this lets us eliminate the setup/teardown routines for
those pointers, and elimnates the need to preform any locking around them to
prevent access while their being allocated/freed.

I've updated the tipc_net structure to behave this way to fix the exact reported
problem, and also fixed up the tipc_bearers and media_list arrays to fix an
obvious simmilar problem that arises from issuing tipc-config commands to
manipulate bearers/links prior to entering networked mode

I've tested this for a few hours by running the sanity tests and stress test
with the tipcutils suite, and nothing has fallen over.  There have been a few
lockdep warnings, but those were there before, and can be addressed later, as
they didn't actually result in any deadlock.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: Allan Stephens <allan.stephens@windriver.com>
CC: David S. Miller <davem@davemloft.net>
CC: tipc-discussion@lists.sourceforge.net

 bearer.c |   37 ++++++-------------------------------
 bearer.h |    2 +-
 net.c    |   25 ++++---------------------
 3 files changed, 11 insertions(+), 53 deletions(-)
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-04 00:53:52 -08:00
Allan Stephens 7981d6f6b2 tipc: Clean up configuration file
This patch addresses a number of minor (mostly cosmetic) issues relating
to the configuration of TIPC, including the following:

- Corrects range limits for maximum number of ports per node
- Adds missing range limits for size of log buffer
- Removes configuration setting relating to unsupported slave node capability
- Standardizes description and help text wording for configuration settings
- Removes unneeded blank spaces

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-19 14:23:57 -08:00
Amerigo Wang ee983ac768 tipc: use kconfig to limit numeric ranges
We can rely on kconfig to limit these numbers,
no need to limit them at compile time/run time.

Users who modify these numbers manually should
be responsible for themself. :)

Signed-off-by: WANG Cong <amwang@redhat.com>
Cc: Per Liden <per.liden@ericsson.com>
Cc: Jon Maloy <jon.maloy@ericsson.com>
Cc: Allan Stephens <allan.stephens@windriver.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-03 21:31:04 -08:00
Joe Perches f64f9e7192 net: Move && and || to end of previous line
Not including net/atm/

Compiled tested x86 allyesconfig only
Added a > 80 column line or two, which I ignored.
Existing checkpatch plaints willfully, cheerfully ignored.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-29 16:55:45 -08:00
Octavian Purdila 09ad9bc752 net: use net_eq to compare nets
Generated with the following semantic patch

@@
struct net *n1;
struct net *n2;
@@
- n1 == n2
+ net_eq(n1, n2)

@@
struct net *n1;
struct net *n2;
@@
- n1 != n2
+ !net_eq(n1, n2)

applied over {include,net,drivers/net}.

Signed-off-by: Octavian Purdila <opurdila@ixiacom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-25 15:14:13 -08:00
Eric Paris 3f378b6844 net: pass kern to net_proto_family create function
The generic __sock_create function has a kern argument which allows the
security system to make decisions based on if a socket is being created by
the kernel or by userspace.  This patch passes that flag to the
net_proto_family specific create function, so it can do the same thing.

Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-05 22:18:14 -08:00
David S. Miller b7058842c9 net: Make setsockopt() optlen be unsigned.
This provides safety against negative optlen at the type
level instead of depending upon (sometimes non-trivial)
checks against this sprinkled all over the the place, in
each and every implementation.

Based upon work done by Arjan van de Ven and feedback
from Linus Torvalds.

Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-30 16:12:20 -07:00
roel kluin b3df9a514f tipc: fix test of bearer_priority range in tipc_register_media()
For the bearer_priority to be less than TIPC_MIN_LINK_PRI and greater than
TIPC_MAX_LINK_PRI is logically impossible.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29 00:19:42 -07:00
Johannes Berg 134e63756d genetlink: make netns aware
This makes generic netlink network namespace aware. No
generic netlink families except for the controller family
are made namespace aware, they need to be checked one by
one and then set the family->netnsok member to true.

A new function genlmsg_multicast_netns() is introduced to
allow sending a multicast message in a given namespace,
for example when it applies to an object that lives in
that namespace, a new function genlmsg_multicast_allns()
to send a message to all network namespaces (for objects
that do not have an associated netns).

The function genlmsg_multicast() is changed to multicast
the message in just init_net, which is currently correct
for all generic netlink families since they only work in
init_net right now. Some will later want to work in all
net namespaces because they do not care about the netns
at all -- those will have to be converted to use one of
the new functions genlmsg_multicast_allns() or
genlmsg_multicast_netns() whenever they are made netns
aware in some way.

After this patch families can easily decide whether or
not they should be available in all net namespaces. Many
genl families us it for objects not related to networking
and should therefore be available in all namespaces, but
that will have to be done on a per family basis.

Note that this doesn't touch on the checkpoint/restart
problem where network namespaces could be used, genl
families and multicast groups are numbered globally and
I see no easy way of changing that, especially since it
must be possible to multicast to all network namespaces
for those families that do not care about netns.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-12 14:03:27 -07:00
oscar.medina@motorola.com 6650613d33 tipc: Add socket options to get number of queued messages
This patch allows a TIPC application to determine the number of messages
currently waiting in a socket's receive queue (TIPC_SOCK_RECVQ_DEPTH) or
in all TIPC socket receive queues (TIPC_NODE_RECVQ_DEPTH).

Signed-off-by: Oscar Medina <oscar.medina@motorola.com>
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-05 19:16:11 -07:00
Michał Mirosław acb0a200ae tipc: Use genl_register_family_with_ops()
Use genl_register_family_with_ops() instead of a copy. This also changes
netlink related variable names to be kernel-wide unique for consistency
with other users.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-21 16:50:23 -07:00
Jiri Pirko 3a6d54c563 net: remove needless (now buggy) & from dev->dev_addr
Patch fixes issues with dev->dev_addr changing from array to pointer.
Hopefully there are no others.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-17 11:59:47 -07:00
Stephen Hemminger 4b704d59d6 tipc: fix non-const printf format arguments
Fix warnings from current gcc about using non-const strings as printf
args in TIPC. Compile tested only (not a TIPC user).

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-18 19:11:29 -07:00
Julia Lawall 6c614a5020 net/tipc/bcast.h: use ARRAY_SIZE
ARRAY_SIZE is more concise to use when the size of an array is divided by
the size of its type or the size of its first element.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@i@
@@

#include <linux/kernel.h>

@depends on i using "paren.iso"@
type T;
T[] E;
@@

- (sizeof(E)/sizeof(T))
+ ARRAY_SIZE(E)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-11 00:06:33 -08:00
Harvey Harrison f574179b63 tipc: trivial endian annotation in debug statement
Use htonl rather than ntohl on a u32.
net/tipc/name_table.c:557:2: warning: cast to restricted __be32

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-07 23:37:50 -08:00
Johannes Berg e174961ca1 net: convert print_mac to %pM
This converts pretty much everything to print_mac. There were
a few things that had conflicts which I have just dropped for
now, no harm done.

I've built an allyesconfig with this and looked at the files
that weren't built very carefully, but it's a huge patch.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-27 17:06:18 -07:00
David S. Miller 6c00055a81 tipc: Don't use structure names which easily globally conflict.
Andrew Morton reported a build failure on sparc32, because TIPC
uses names like "struct node" and there is a like named data
structure defined in linux/node.h

This just regexp replaces "struct node*" to "struct tipc_node*"
to avoid this and any future similar problems.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-02 23:38:32 -07:00
Andrew Morton 6ced0b3f1e net/tipc/subscr.c: don't use ___constant_swab32
It's an internal implementation detail which we _should_ be free to change. 
So we did, and it promptly broke.

The compiler shold be able to work out when to use the __constant version
anyway.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-13 02:32:06 -07:00
YOSHIFUJI Hideaki 721499e893 netns: Use net_eq() to compare net-namespaces for optimization.
Without CONFIG_NET_NS, namespace is always &init_net.
Compiler will be able to omit namespace comparisons with this patch.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-19 22:34:43 -07:00
Allan Stephens 968edbe1c8 tipc: Optimization to multicast name lookup algorithm
This patch simplifies and speeds up TIPC's algorithm for identifying
on-node and off-node destinations that overlap a multicast name
sequence range.  Rather than traversing the list of all known name
publications within the cluster, it now traverses the (potentially
much shorter) list of name publications made by the node itself, and
determines if any off-node destinations exist by comparing the sizes
of the two lists.  (Since the node list must be a subset of the
cluster list, a difference in sizes means that at least one off-node
destination must exist.)

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-14 22:45:33 -07:00
Allan Stephens 1aad72d6cd tipc: Add missing locks when inspecting node list & link list
This patch ensures that TIPC configuration commands that display info
about neighboring nodes and their links take the spinlocks that
protect the node list and link lists from changing while the lists
are being traversed.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-14 22:44:58 -07:00
Allan Stephens 08d2cf0f74 tipc: Fix bug in scope checking for multicast messages
This patch ensures that TIPC's multicast message name lookup
algorithm does individualized scope checking for each published
name it examines.  Previously, scope checking was only done for
the first name in a name table publication list, which could
result in incoming multicast messages being delivered to ports
publishing names with "node" scope, or not being delivered to
ports publishing names with "cluster" or "zone" scope.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-14 22:44:32 -07:00
Allan Stephens 0e35fd5e52 tipc: Eliminate improper use of TIPC_OK error code
This patch corrects many places where TIPC routines indicated
successful completion by returning TIPC_OK instead of 0.
(The TIPC_OK symbol has the value 0, but it should only be used
in contexts that deal with the error code field of a TIPC
message header.)

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-14 22:44:01 -07:00
Allan Stephens 2da59918e2 tipc: Fix race condition that could cause accept() to fail
This patch ensurs that accept() returns successfully even when
the newly created socket is immediately disconnected by its peer.
Previously, accept() would fail if it was unable to pass back
the optional address info for the socket's peer before the
socket became disconnected; TIPC now allows accept() to gather
peer address information after disconnection.  As a bonus, the
revised code accesses the socket's port more efficiently, without
the overhead incurred by a reference table lookup.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-14 22:43:32 -07:00
Allan Stephens 8642bd9e04 tipc: Optimize pointer dereferencing when receiving stream data
This patch eliminates an unnecessary pointer dereference when
accessing a stream-based socket's receive queue.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-14 22:42:51 -07:00
Allan Stephens 0ea522416b tipc: Remove unneeded parameter to tipc_createport_raw()
This patch eliminates an unneeded parameter when creating a low-level
TIPC port object.  Instead of returning both the pointer to the port
structure and the port's reference ID, it now returns only the pointer
since the port structure contains the reference ID as one of its fields.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-14 22:42:19 -07:00
Allan Stephens 40aecb1b13 tipc: Message rejection rework preparatory changes
This patch defines a few new message header manipulation routines,
and generalizes the usefulness of another, in preparation for upcoming
rework of TIPC's message rejection code.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-04 17:54:48 -07:00
Allan Stephens 99c145939b tipc: Fix bugs in rejection of message with short header
This patch ensures that TIPC doesn't try to access non-existent
message header fields when rejecting a message with a short header.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-04 17:48:25 -07:00
Allan Stephens 9bef54383d tipc: Message header creation optimizations
This patch eliminates several cases where message header fields
were being set to the same value twice.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-04 17:47:55 -07:00
Allan Stephens bd7845337b tipc: Expand link sequence gap field to 13 bits
This patch increases the "sequence gap" field of the LINK_PROTOCOL
message header from 8 bits to 13 bits (utilizing 5 previously
unused 0 bits).  This ensures that the field is big enough to
indicate the loss of up to 8191 consecutive messages on the link,
thereby accommodating the current worst-case scenario of 4000
lost messages.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-04 17:47:30 -07:00
Allan Stephens 307fdf5e7d tipc: Add missing spinlock in name table display code
This patch ensures that the display code that traverses the
publication lists belonging to a name table entry take its
associated spinlock, to protect against a possible change to
one of its "head of list" pointers caused by a simultaneous
name table lookup operation by another thread of control.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-04 17:38:22 -07:00
Allan Stephens 0f15d36453 tipc: Prevent display of name table types with no publications
This patch adds a check to prevent TIPC's name table display code
from listing a name type entry if it exists only to hold subscription
info, rather than published names.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-04 17:37:59 -07:00
Allan Stephens 7571521756 tipc: Optimize message initialization routine
This patch eliminates the rarely-used "error code" argument
when initializing a TIPC message header, since the default
value of zero is the desired result in most cases; the few
exceptional cases now set the error code explicitly.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-04 17:37:34 -07:00
Allan Stephens 9c396a7bfb tipc: Prevent access of non-existent field in short message header
This patch eliminates a case where TIPC's link code could try reading
a field that is not present in a short message header.  (The random
value obtained was not being used, but the read operation could result
in an invalid memory access exception in extremely rare circumstances.)

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-04 17:36:58 -07:00
Allan Stephens 1265a02108 tipc: Minor optimizations to received message processing
This patch enhances TIPC's handler for incoming messages in two
ways:
- the trivial, single-use routine for processing non-sequenced
  messages has been merged into the main handler
- the interface that received a message is now identified without
  having to access and/or modify the associated sk_buff

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-04 17:32:35 -07:00
Allan Stephens a686e6859e tipc: Fix minor bugs in link session number handling
This patch introduces a new, out-of-range value to indicate that
a link endpoint does not have an existing session established
with its peer, eliminating the risk that the previously used
"invalid session number" value (i.e. zero) might eventually be
assigned as a valid session number and cause incorrect link
behavior.

The patch also introduces explicit bit masking when assigning a
new link session number to ensure it does not exceed 16 bits.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-04 17:29:39 -07:00
Allan Stephens e0d4e3d0d7 tipc: Fix bugs in message error code display when debugging
This patch corrects two problems in the display of error code
information in TIPC messages when debugging:
- no longer tries to display error code in NAME_DISTRIBUTOR
  messages, which don't have the error field
- now displays error code in 24 byte data messages, which do
  have the error field

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-04 17:29:09 -07:00
Allan Stephens 5307e46957 tipc: Standardize error checking on incoming messages via native API
This patch re-orders & re-groups the error checks performed on
messages being delivered to native API ports, in order to clarify the
similarities and differences required for the various message types.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-04 17:28:45 -07:00
Allan Stephens 84b07c1638 tipc: Fix bug in connection setup via native API
This patch fixes a bug that prevented TIPC from receiving a
connection setup request message on a native TIPC port.
The revised connection setup logic ensures that validation
of the source of a connection-based message is skipped if
the port is not yet connected to a peer.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-04 17:28:21 -07:00
Allan Stephens 03194379a7 tipc: Fix initialization sequence problems when entering network mode
This patch ensures that TIPC's topology service and configuration
service are shut down before switching into "network mode".  This
ensures that TIPC does not mistakenly try to send unnecessary
"publication withdraw" messages to other nodes before it is fully
initialized for sending off-node messages.  Note that the node's
current network address is now updated only after the two services
are shut down; this ensures that any existing connections to the
topology server are terminated correctly using the old address.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-21 14:55:04 -07:00
Allan Stephens 6d4a6672c8 tipc: Update "previous node" indicators when node address changes
This patch ensures that the "previous node" field in any existing
TIPC port message header templates is updated properly when a TIPC
network address is assigned to the node.  (Previously, only the
"originating node" field was updated.)

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-21 14:54:12 -07:00
Allan Stephens 811102ca23 tipc: Optimize null pointer check during neighbor discovery
This patch optimizes TIPC neighbor discovery code to avoid testing for
a null node pointer when the pointer is already known to be non-null.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-21 14:53:34 -07:00
Allan Stephens 2ecb0924d7 tipc: Prevent node object duplication due to simultaneous discovery
This patch ensures that the simultaneous discovery of the same
neighboring node by multiple interfaces does not cause TIPC to add
the node into its internal data structures more than once.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-21 14:53:00 -07:00
Allan Stephens 59f0c4523f tipc: Fix skb_under_panic when configuring TIPC without privileges
This patch prevents a TIPC configuration command requiring network
administrator privileges from triggering an skbuff underrun if it
is issued by a process lacking those privileges.  The revised error
handling code avoids the use of a potentially uninitialized global
variable by transforming the unauthorized command into a new command,
then following the standard command processing path to generate the
required error message.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-21 14:52:30 -07:00
Allan Stephens 5b06c85c3b tipc: Cosmetic cleanup of topology service code
This patch contains a set of cosmetic changes to TIPC's network
topology service subsystem, including:

- updates to comments (including copyright dates)
- re-ordering structure fields to group them more logically
- removal of optional debugging code that is no longer required
- minor changes to whitespace to conform to Linux coding conventions

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-19 13:30:13 -07:00
Allan Stephens 28353e7fad tipc: Consolidate subscriber & subscriber port references
This patch modifies TIPC's network topology service so that it
only requires a single reference table entry per subscriber
connection, rather than two.  This is achieved by letting the
reference to the server port communicating with the subscriber
act as the reference to the subscriber object itself.  (Since
the subscriber cannot exist without its port, and vice versa,
this dual role for the reference is perfectly natural.)  This
consolidation reduces the size of the reference table by 50%
in the default configuration.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-19 13:29:47 -07:00
Allan Stephens fc5ad58270 tipc: Fix bug in topology server byte swapping routine
This patch fixes TIPC's topology server so that it does byte swapping
correctly when endianness conversion is required.  (Note: This bug only
impacted an application if it issues a subscription request to a
topology server on another node, rather than the server on it's own
node; since the topology server is normally not accessible by off-node
applications, most TIPC applications were not impacted by the bug.)

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-19 13:29:06 -07:00
Allan Stephens 8e9501f518 tipc: Add support for customized subscription endianness
This patch enables TIPC's topology server code to do customized
endianness conversions on a per-subscription basis.  (This
capability is needed to support the upcoming consolidation of
subscriber and subscription object references.)

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-19 13:28:32 -07:00
Allan Stephens e15f880409 tipc: Add support for customized subscription overlap handling
This patch enables TIPC's topology server code to do customized
overlap detection handling on a per-subscription basis.  (This
capability is needed to support the upcoming introduction of
multi-cluster TIPC networks.)

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-19 13:27:31 -07:00
David S. Miller 63fe46da9c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:

	drivers/net/wireless/iwlwifi/iwl-4965-rs.c
	drivers/net/wireless/rt2x00/rt61pci.c
2008-05-15 00:34:44 -07:00
Allan Stephens 7ef43ebaa5 tipc: Fix race condition when creating socket or native port
This patch eliminates the (very remote) chance of a crash resulting
from a partially initialized socket or native port unexpectedly
receiving a message.  Now, during the creation of a socket or native
port, the underlying generic port's lock is not released until all
initialization required to handle incoming messages has been done.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-12 15:42:28 -07:00
Allan Stephens 4e3e6dcb43 tipc: Enhancements to name table initialization
This patch enhances the initialization of TIPC's name table
by removing a pointless spinlock operation, and by using
kcalloc() to detect requests for an oversized name table.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-12 15:41:53 -07:00
Allan Stephens f08269d3ec tipc: Increase buffer header to support worst-case device
This patch increases the headroom TIPC reserves in each sk_buff
to accommodate the largest possible link level device header.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-08 21:38:24 -07:00
Allan Stephens a7ca0268b5 tipc: Update version number to TIPC 1.6.4
This patch updates TIPC's version number to 1.6.4.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-05 01:24:36 -07:00
Allan Stephens 48c9713946 tipc: Exclude debug-only print buffer code when not debugging
This patch modifies TIPC to only exclude debug-related print buffer
routines when debugging capabilities are not required.  It also
fixes up some related #defines that exceed 80 characters.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-05 01:24:06 -07:00
Allan Stephens 6063da9d74 tipc: Cosmetic cleanup of system & debug output declarations
This patch contains changes to make TIPC's system & debug
message declarations more readable.  Declarations have been
regrouped and recommented to make it easier to understand
what output is generated in both standard and debugging modes.
In addition, oversize lines have been fixed to respect the
80 character upper bound used in the kernel.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-05 01:23:34 -07:00
Allan Stephens 7d3aa71239 [TIPC]: Cosmetic cleanup of print buffer code
This patch contains changes to make TIPC's print buffer code
conform more closely to Linux kernel coding guidelines.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-05 01:22:59 -07:00
Allan Stephens c89039850b tipc: Elimination of print buffer chaining
This patch revamps TIPC's print buffer subsystem to eliminate
support for arbitrary chains of print buffers, which were
rarely needed and difficult to use safely.

In its place, print buffers can now be configured to echo their
output to the system console.  This provides an equivalent for
the only chaining currently utilized by TIPC, in a faster and
more compact manner.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-05 01:22:30 -07:00
Allan Stephens 40dbfae440 tipc: Fix null pointer dereference in debug code
This patch eliminates an obsolete use of the DBG_OUTPUT print
buffer which could lead to a null pointer crash in tipc_printf()
if TIPC's debugging capabilities are configured.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-05 01:21:54 -07:00
Allan Stephens 93758c3da1 tipc: Fix recursive spinlock invocation in print buffer code
This patch fixes two routines that allow the global print buffer
spinlock to be taken recursively.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-05 01:21:12 -07:00
Allan Stephens fb98ec71c7 tipc: Provide feedback when log buffer resizing fails
This patch provides feedback to the user when TIPC is unable
to set its log buffer to the requested size.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-05 01:20:42 -07:00
Allan Stephens 025adbe8e5 tipc: Simplify log buffer resizing
This patch simplifies & standardizes the way TIPC's print buffer
log is resized.  Code to terminate use of the log buffer is
eliminated by simply setting the log buffer size to 0 bytes.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-05 01:20:04 -07:00
Al Viro becf3da20e tipc: endianness annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-27 14:26:49 -07:00
Pavel Emelyanov 653252c230 net: Fix wrong interpretation of some copy_to_user() results.
I found some places, that erroneously return the value obtained from
the copy_to_user() call: if some amount of bytes were not able to get
to the user (this is what this one returns) the proper behavior is to
return the -EFAULT error, not that number itself.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-25 01:49:48 -07:00
Allan Stephens bcff122d47 [TIPC]: Cleanup of TIPC reference table code
This patch is a largely cosmetic cleanup of the TIPC reference
table code.
- The object reference field in each table entry is now single
  32-bit integer instead of a union of two 32-bit integers.
- Variable naming has been made more consistent.
- Error message output has been made more consistent.
- Useless #includes have been eliminated.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16 18:22:20 -07:00
Allan Stephens 0089509826 [TIPC]: Optimized initialization of TIPC reference table
This patch modifies TIPC's reference table code to delay initializing
table entries until they are actually needed by applications.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16 18:21:47 -07:00
Allan Stephens 4784b7c348 [TIPC]: Remove inlining of reference table locking routines
This patch converts the TIPC reference table locking routines
into non-inlined routines, since they are mainly called from
non-performance critical areas of TIPC and the added code
footprint incurred through inlining can no longer be justified.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16 18:21:16 -07:00
Allan Stephens 85035568a9 [TIPC]: Enhance validation of format on incoming messages
This patch ensures that TIPC properly handles incoming messages
that have incorrect or unexpected formats.  Most significantly,
it now ensures that each sl_buff has at least as much data as
the message header indicates it should, and that the entire
message header is stored contiguously; this prevents TIPC from
accidentally accessing memory that is not part of the sk_buff.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15 19:04:54 -07:00
Allan Stephens fe13dda2d2 [TIPC]: Force linearization of non-linear sk_buffs
This patch allows TIPC to process incoming messages that are
stored in a fragmented sk_buff, by forcing the linearization
of any such messages it receives.

Note: This is an interim solution to allow TIPC to operate with
Ethernet devices that generate non-linear buffers (such as the
gianfar driver), until such time as the rest of TIPC is enhanced
to handle sk_buffs with multiple data areas.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15 19:03:23 -07:00
Allan Stephens bdc82bee43 [TIPC]: Use fast buffer cloning to improve performance
This patch causes TIPC to allocate fast clonable sk_buffs,
rather than standard ones.  This speeds up the cloning
operation done by the link code each time a message is sent
off-node.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15 19:02:30 -07:00
Allan Stephens 11ecede787 [TIPC]: Remove redundant NULL check when discarding buffers
This patch eliminates a null pointer check when discarding a
TIPC message buffer, since kfree_skb() already handles this
situation.

Acknowledgements to Florian Westphal (fw@strlen.de> for
suggesting this enhancement.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15 19:01:43 -07:00
Allan Stephens 0c3141e910 [TIPC]: Overhaul of socket locking logic
This patch modifies TIPC's socket code to follow the same approach
used by other protocols.  This change eliminates the need for a
mutex in the TIPC-specific portion of the socket protocol data
structure -- in its place, the standard Linux socket backlog queue
and associated locking routines are utilized.  These changes fix
a long-standing receive queue bug on SMP systems, and also enable
individual read and write threads to utilize a socket without
unnecessarily interfering with each other.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15 00:22:02 -07:00
Allan Stephens b89741a0cc [TIPC]: Cosmetic changes to TIPC connect() code
This patch fixes TIPC's connect routine to conform to Linux
kernel style norms of indentation, line length, etc.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15 00:20:37 -07:00
Allan Stephens 4934c69a38 [TIPC]: Add error check to detect non-blocking form of connect()
This patch causes TIPC to return an error indication if the non-
blocking form of connect() is requested (which TIPC does not yet
support).

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15 00:16:19 -07:00
Allan Stephens 1819b83718 [TIPC]: Correct "off by 1" error in socket queue limit enforcement
This patch fixes a bug that allowed TIPC to queue 1 more message
than allowed by the socket receive queue threshold limits.  The
patch also improves the threshold code's logic and naming to help
prevent this sort of error from recurring in the future.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15 00:15:50 -07:00
Allan Stephens 7a8036c2b9 [TIPC]: Ignore message padding when receiving stream data
This patch ensures that padding bytes appearing at the end of
an incoming TIPC message are not returned as valid stream data.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15 00:15:15 -07:00
Allan Stephens a198d3a200 [TIPC]: Allow stream receive to read from multiple TIPC messages
This patch allows a stream socket to receive data from multiple
TIPC messages in its receive queue, without requiring the use of
the MSG_WAITALL flag.

Acknowledgements to Florian Westphal <fw-tipc@strlen.de> for
identifying this issue and suggesting how to correct it.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15 00:07:15 -07:00
Allan Stephens 990098068f [TIPC]: Skip connection flow control in connectionless sockets
This patch optimizes the receive path for SOCK_DGRAM and SOCK_RDM
messages by skipping over code that handles connection-based flow
control.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15 00:06:12 -07:00
Allan Stephens 3654ea02f2 [TIPC]: Improve socket time conversions
This patch modifies TIPC's socket code to use standard kernel
routines to handle time conversions between jiffies and ms.
This ensures proper operation even when HZ isn't 1000.

Acknowledgements to Eric Sesterhenn <snakebyte@gmx.de> for
identifying this issue and proposing a solution.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-13 21:35:11 -07:00
Allan Stephens 9673693284 [TIPC]: Remove redundant socket wait queue initialization
This patch eliminates re-initialization of the standard socket
wait queue used for sleeping in TIPC's socket creation code.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-13 21:33:17 -07:00
Allan Stephens 9b674e82b7 [TIPC]: Cosmetic cleanup of TIPC polling logic
This patch eliminates an unnecessary poll-related routine
by merging it into TIPC's main polling routine, and updates
the comments associated with this code.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-26 16:48:21 -07:00
YOSHIFUJI Hideaki 3b1e0a655f [NET] NETNS: Omit sock->sk_net without CONFIG_NET_NS.
Introduce per-sock inlines: sock_net(), sock_net_set()
and per-inet_timewait_sock inlines: twsk_net(), twsk_net_set().
Without CONFIG_NET_NS, no namespace other than &init_net exists.
Let's explicitly define them to help compiler optimizations.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-26 04:39:55 +09:00
YOSHIFUJI Hideaki c346dca108 [NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS.
Introduce per-net_device inlines: dev_net(), dev_net_set().
Without CONFIG_NET_NS, no namespace other than &init_net exists.
Let's explicitly define them to help compiler optimizations.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-26 04:39:53 +09:00
Allan Stephens ba0fa45994 [TIPC]: Update version to 1.6.3
This patch updates TIPC's version number to 1.6.3.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-06 15:08:40 -08:00
Allan Stephens c0cb7ef086 [TIPC]: Enhancements to message header writing
This patch makes two enhancements to the routine used to
set bit fields within a TIPC message header:

 1) It now ignores any bits of the new field value that are not
    covered by the mask being used.  (Previously, if the new value
    exceeded the size of the mask the extra bits could corrupt
    other fields in the message header word being updated.)

 2) The code has been optimized to minimize the number of run-time
    endianness conversion operations by leveraging the fact that the
    mask (and, in some cases, the value as well) is constant and the
    necessary conversion can be performed by the compiler.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-06 15:08:10 -08:00
Allan Stephens 37695420a2 [TIPC]: Use correct bitmask when setting version
This patch ensures that the 3-bit version field of the TIPC
message header is masked correctly when written into a message.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-06 15:07:42 -08:00
Allan Stephens 06d82c9191 [TIPC]: Minor cleanup of message header code
This patch eliminates some unused or duplicate message header
symbols, and fixes up the comments and/or location of a few
other symbols.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-06 15:06:55 -08:00
Allan Stephens 0e0609bbd2 [TIPC]: Eliminate "sparse" symbol warnings
This patch eliminates warnings about undeclared symbols.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-06 15:06:06 -08:00
Allan Stephens e247a8f5d0 [TIPC]: Add argument validation for shutdown()
This patch validates that the "how" argument to shutdown()
is SHUT_RDWR, since this is the only form that TIPC supports.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-06 15:05:38 -08:00
Allan Stephens 8c8696553a [TIPC]: Removal of message header option code
This patch removes code associated with optional, user-specified
fields of the TIPC message header.  Such fields were never
utilized by TIPC, and have now been removed from the protocol
specification.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-06 15:05:07 -08:00
Matthias Kaehlcke 26bad2c05e [TIPC]: Convert tsock->sem in a mutex
The semaphore tsock->sem is used as mutex, convert it to the mutex API

Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-03 23:35:53 -08:00
Harvey Harrison 5f2f40a92e tipc: fix integer as NULL pointer sparse warnings in tipc
net/tipc/cluster.c:145:2: warning: Using plain integer as NULL pointer
net/tipc/link.c:3254:36: warning: Using plain integer as NULL pointer
net/tipc/ref.c:151:15: warning: Using plain integer as NULL pointer
net/tipc/zone.c:85:2: warning: Using plain integer as NULL pointer

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-24 18:38:31 -08:00
Florian Westphal bca65eae39 [TIPC]: declare proto_ops structures as 'const'.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-07 18:18:01 -08:00
Ilpo Järvinen 86121fe5b4 [TIPC]: Kill unused static inline (x5)
All these static inlines are unused:

in_own_zone     1 (net/tipc/addr.h)
msg_dataoctet   1 (net/tipc/msg.h)
msg_direct      1 (include/net/tipc/tipc_msg.h)
msg_options     1 (include/net/tipc/tipc_msg.h)
tipc_nmap_get   1 (net/tipc/bcast.h)

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-07 18:17:13 -08:00
Julia Lawall 4cec72c890 [TIPC]: Use tipc_port_unlock
The file net/tipc/port.c takes a lock using the function tipc_port_lock and
then releases the lock sometimes using tipc_port_unlock and sometimes using
spin_unlock_bh(p_ptr->publ.lock).  tipc_port_unlock simply does the
spin_unlock_bh, but it seems cleaner to use it everywhere.

The problem was fixed using the following semantic patch.
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
struct port *p_ptr;
@@

   p_ptr = tipc_port_lock(...)
   ...
(
   p_ptr = tipc_port_lock(...);
|
?- spin_unlock_bh(p_ptr->publ.lock);
+  tipc_port_unlock(p_ptr);
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Jon Paul Maloy <maloy@donjonn.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:01:05 -08:00
Pavel Emelyanov b24b8a247f [NET]: Convert init_timer into setup_timer
Many-many code in the kernel initialized the timer->function
and  timer->data together with calling init_timer(timer). There
is already a helper for this. Use it for networking code.

The patch is HUGE, but makes the code 130 lines shorter
(98 insertions(+), 228 deletions(-)).

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 14:53:35 -08:00
Andrew Morton 98eb5683fb [TIPC]: Fix semaphore handling.
As noted by Kevin, tipc's release() does down_interruptible() and
ignores the return value.  So if signal_pending() we'll end up doing
up() on a non-downed semaphore.  Fix.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-14 13:54:37 -08:00
Pavel Emelyanov 6257ff2177 [NET]: Forget the zero_it argument of sk_alloc()
Finally, the zero_it argument can be completely removed from
the callers and from the function prototype.

Besides, fix the checkpatch.pl warnings about using the
assignments inside if-s.

This patch is rather big, and it is a part of the previous one.
I splitted it wishing to make the patches more readable. Hope 
this particular split helped.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-01 00:39:31 -07:00
Stephen Hemminger 0c4e85813d [NET]: Wrap netdevice hardware header creation.
Add inline for common usage of hardware header creation, and
fix bug in IPV6 mcast where the assumption about negative return is
an errno. Negative return from hard_header means not enough space
was available,(ie -N bytes).

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:52:50 -07:00
Joe Perches 0795af5729 [NET]: Introduce and use print_mac() and DECLARE_MAC_BUF()
This is nicer than the MAC_FMT stuff.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:51:42 -07:00
Eric W. Biederman 881d966b48 [NET]: Make the device list and device lookups per namespace.
This patch makes most of the generic device layer network
namespace safe.  This patch makes dev_base_head a
network namespace variable, and then it picks up
a few associated variables.  The functions:
dev_getbyhwaddr
dev_getfirsthwbytype
dev_get_by_flags
dev_get_by_name
__dev_get_by_name
dev_get_by_index
__dev_get_by_index
dev_ioctl
dev_ethtool
dev_load
wireless_process_ioctl

were modified to take a network namespace argument, and
deal with it.

vlan_ioctl_set and brioctl_set were modified so their
hooks will receive a network namespace argument.

So basically anthing in the core of the network stack that was
affected to by the change of dev_base was modified to handle
multiple network namespaces.  The rest of the network stack was
simply modified to explicitly use &init_net the initial network
namespace.  This can be fixed when those components of the network
stack are modified to handle multiple network namespaces.

For now the ifindex generator is left global.

Fundametally ifindex numbers are per namespace, or else
we will have corner case problems with migration when
we get that far.

At the same time there are assumptions in the network stack
that the ifindex of a network device won't change.  Making
the ifindex number global seems a good compromise until
the network stack can cope with ifindex changes when
you change namespaces, and the like.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:49:10 -07:00
Eric W. Biederman e9dc865340 [NET]: Make device event notification network namespace safe
Every user of the network device notifiers is either a protocol
stack or a pseudo device.  If a protocol stack that does not have
support for multiple network namespaces receives an event for a
device that is not in the initial network namespace it quite possibly
can get confused and do the wrong thing.

To avoid problems until all of the protocol stacks are converted
this patch modifies all netdev event handlers to ignore events on
devices that are not in the initial network namespace.

As the rest of the code is made network namespace aware these
checks can be removed.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:49:09 -07:00
Eric W. Biederman e730c15519 [NET]: Make packet reception network namespace safe
This patch modifies every packet receive function
registered with dev_add_pack() to drop packets if they
are not from the initial network namespace.

This should ensure that the various network stacks do
not receive packets in a anything but the initial network
namespace until the code has been converted and is ready
for them.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:49:08 -07:00
Eric W. Biederman 1b8d7ae42d [NET]: Make socket creation namespace safe.
This patch passes in the namespace a new socket should be created in
and has the socket code do the appropriate reference counting.  By
virtue of this all socket create methods are touched.  In addition
the socket create methods are modified so that they will fail if
you attempt to create a socket in a non-default network namespace.

Failing if we attempt to create a socket outside of the default
network namespace ensures that as we incrementally make the network stack
network namespace aware we will not export functionality that someone
has not audited and made certain is network namespace safe.
Allowing us to partially enable network namespaces before all of the
exotic protocols are supported.

Any protocol layers I have missed will fail to compile because I now
pass an extra parameter into the socket creation code.

[ Integrated AF_IUCV build fixes from Andrew Morton... -DaveM ]

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:49:07 -07:00
Jesper Juhl 897c77cab0 [TIPC]: Clean up duplicate includes in net/tipc/
This patch cleans up duplicate includes in
	net/tipc/

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-08-13 22:52:07 -07:00
Florian Westphal d788d8056f [TIPC]: Fix two minor sparse warnings.
fix two warnings generated by sparse:

link.c:2386 symbol 'msgcount' shadows an earlier one
node.c:244 symbol 'addr_string' shadows an earlier one

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-08-02 19:42:31 -07:00
Florian Westphal 248bbf3821 [TIPC]: Make function tipc_nameseq_subscribe static.
make needlessly global function tipc_nameseq_subscribe static.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-08-02 19:42:30 -07:00
Florian Westphal 9457106575 [TIPC]: fix tipc_link_create error handling
if printbuf allocation or tipc_node_attach_link() fails, invalid
references to the link are left in the associated node and bearer
structures.
Fix by allocating printbuf early and moving timer initialization
and the addition of the new link to the b_ptr->links list after
tipc_node_attach_link() succeeded.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 02:28:02 -07:00
Al Viro 582ee43dad net/* misc endianness annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-26 11:11:56 -07:00
Paul Mundt 20c2df83d2 mm: Remove slab destructors from kmem_cache_create().
Slab destructors were no longer supported after Christoph's
c59def9f22 change. They've been
BUGs for both slab and slub, and slob never supported them
either.

This rips out support for the dtor pointer from kmem_cache_create()
completely and fixes up every single callsite in the kernel (there were
about 224, not including the slab allocator definitions themselves,
or the documentation references).

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-20 10:11:58 +09:00
Linus Torvalds ce8c2293be Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (25 commits)
  [TG3]: Fix msi issue with kexec/kdump.
  [NET] XFRM: Fix whitespace errors.
  [NET] TIPC: Fix whitespace errors.
  [NET] SUNRPC: Fix whitespace errors.
  [NET] SCTP: Fix whitespace errors.
  [NET] RXRPC: Fix whitespace errors.
  [NET] ROSE: Fix whitespace errors.
  [NET] RFKILL: Fix whitespace errors.
  [NET] PACKET: Fix whitespace errors.
  [NET] NETROM: Fix whitespace errors.
  [NET] NETFILTER: Fix whitespace errors.
  [NET] IPV4: Fix whitespace errors.
  [NET] DCCP: Fix whitespace errors.
  [NET] CORE: Fix whitespace errors.
  [NET] BLUETOOTH: Fix whitespace errors.
  [NET] AX25: Fix whitespace errors.
  [PATCH] mac80211: remove rtnl locking in ieee80211_sta.c
  [PATCH] mac80211: fix GCC warning on 64bit platforms
  [GENETLINK]: Dynamic multicast groups.
  [NETLIKN]: Allow removing multicast groups.
  ...
2007-07-19 10:23:21 -07:00
Yoann Padioleau dd00cc486a some kmalloc/memset ->kzalloc (tree wide)
Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc).

Here is a short excerpt of the semantic patch performing
this transformation:

@@
type T2;
expression x;
identifier f,fld;
expression E;
expression E1,E2;
expression e1,e2,e3,y;
statement S;
@@

 x =
- kmalloc
+ kzalloc
  (E1,E2)
  ...  when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\)
- memset((T2)x,0,E1);

@@
expression E1,E2,E3;
@@

- kzalloc(E1 * E2,E3)
+ kcalloc(E1,E2,E3)

[akpm@linux-foundation.org: get kcalloc args the right way around]
Signed-off-by: Yoann Padioleau <padator@wanadoo.fr>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Cc: Bryan Wu <bryan.wu@analog.com>
Acked-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Dave Airlie <airlied@linux.ie>
Acked-by: Roland Dreier <rolandd@cisco.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Acked-by: Pierre Ossman <drzeus-list@drzeus.cx>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: "David S. Miller" <davem@davemloft.net>
Acked-by: Greg KH <greg@kroah.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19 10:04:50 -07:00
YOSHIFUJI Hideaki 8238745a39 [NET] TIPC: Fix whitespace errors.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2007-07-19 10:44:56 +09:00
Allan Stephens 05646c9110 [TIPC]: Optimize stream send routine to avoid fragmentation
This patch enhances TIPC's stream socket send routine so that
it avoids transmitting data in chunks that require fragmentation
and reassembly, thereby improving performance at both the
sending and receiving ends of the connection.

The "maximum packet size" hint that records MTU info allows
the socket to decide how big a chunk it should send; in the
event that the hint has become stale, fragmentation may still
occur, but the data will be passed correctly and the hint will
be updated in time for the following send.  Note: The 66060 byte
pseudo-MTU used for intra-node connections requires the send
routine to perform an additional check to ensure it does not
exceed TIPC"s limit of 66000 bytes of user data per chunk.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Jon Paul Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10 22:06:12 -07:00
Allan Stephens 5eee6a6dc9 [TIPC]: Use standard socket "not implemented" routines
This patch modifies TIPC's socket API to utilize existing
generic routines to indicate unsupported operations, rather
than adding similar TIPC-specific routines.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Jon Paul Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10 22:06:09 -07:00
Allan Stephens f3ec75f627 [TIPC]: Improved support for Ethernet traffic filtering
This patch simplifies TIPC's Ethernet receive routine to take
advantage of information already present in each incoming sk_buff
indicating whether the packet was explicitly sent to the interface,
has been broadcast to all interfaces, or was picked up because the
interface is in promiscous mode.

This new approach also fixes the problem of TIPC accepting unwanted
traffic through UML's multicast-based Ethernet interfaces (which
deliver traffic in a promiscuous manner even if the interface is
not configured to be promiscuous).

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Jon Paul Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10 22:06:02 -07:00
Florian Westphal 64beb8f3eb [TIPC]: Fix infinite loop in netlink handler
The tipc netlink config handler uses the nlmsg_pid from the
request header as destination for its reply. If the application
initialized nlmsg_pid to 0, the reply is looped back to the kernel,
causing hangup. Fix: use nlmsg_pid of the skb that triggered the
request.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-23 22:59:40 -07:00
Jon Paul Maloy cb283ead71 [TIPC]: Fixed erroneous introduction of for_each_netdev
Signed-off-by: Jon Paul Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-24 16:36:54 -07:00
Jan Engelhardt a31b19c514 [TIPC]: Use menuconfig objects.
Use menuconfigs instead of menus, so the whole menu can be disabled at
once instead of going through all options.

Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-24 16:36:50 -07:00
Linus Torvalds 15700770ef Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild: (38 commits)
  kconfig: fix mconf segmentation fault
  kbuild: enable use of code from a different dir
  kconfig: error out if recursive dependencies are found
  kbuild: scripts/basic/fixdep segfault on pathological string-o-death
  kconfig: correct minor typo in Kconfig warning message.
  kconfig: fix path to modules.txt in Kconfig help
  usr/Kconfig: fix typo
  kernel-doc: alphabetically-sorted entries in index.html of 'htmldocs'
  kbuild: be more explicit on missing .config file
  kbuild: clarify the creation of the LOCALVERSION_AUTO string.
  kbuild: propagate errors from find in scripts/gen_initramfs_list.sh
  kconfig: refer to qt3 if we cannot find qt libraries
  kbuild: handle compressed cpio initramfs-es
  kbuild: ignore section mismatch warning for references from .paravirtprobe to .init.text
  kbuild: remove stale comment in modpost.c
  kbuild/mkuboot.sh: allow spaces in CROSS_COMPILE
  kbuild: fix make mrproper for Documentation/DocBook/man
  kbuild: remove kconfig binaries during make mrproper
  kconfig/menuconfig: do not hardcode '.config'
  kbuild: override build timestamp & version
  ...
2007-05-06 13:21:57 -07:00
Pavel Emelianov 7562f876cd [NET]: Rework dev_base via list_head (v3)
Cleanup of dev_base list use, with the aim to simplify making device
list per-namespace. In almost every occasion, use of dev_base variable
and dev->next pointer could be easily replaced by for_each_netdev
loop. A few most complicated places were converted to using
first_netdev()/next_netdev().

Signed-off-by: Pavel Emelianov <xemul@openvz.org>
Acked-by: Kirill Korotaev <dev@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-03 15:13:45 -07:00
Alexander E. Patrakov 39f5fb3035 kconfig: fix path to modules.txt in Kconfig help
Documentation/modules.txt doesn't exist, but
Documentation/kbuild/modules.txt does.

Signed-off-by: Alexander E. Patrakov
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-05-02 20:58:11 +02:00
Allan Stephens 1f9eda7e2b [TIPC]: Enhancements to msg_set_bits() routine
This patch makes two enhancements to msg_set_bits():

1) It now ignores any bits of the new field value that are not
   covered by the mask being used.  (Previously, if the new value
   exceeded the size of the mask the extra bits could corrupt
   other fields in the message header word being updated.)

2) The code has been optimized to minimize the number of run-time
   endianness conversion operations by leveraging the fact that the
   mask (and, in some cases, the value as well) is constant and the
   necessary conversion can be performed by the compiler.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Jon Paul Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:29:49 -07:00
Stephen Hemminger 3ff50b7997 [NET]: cleanup extra semicolons
Spring cleaning time...

There seems to be a lot of places in the network code that have
extra bogus semicolons after conditionals.  Most commonly is a
bogus semicolon after: switch() { }

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:29:24 -07:00
Arnaldo Carvalho de Melo 27d7ff46a3 [SK_BUFF]: Introduce skb_copy_to_linear_data{_offset}
To clearly state the intent of copying to linear sk_buffs, _offset being a
overly long variant but interesting for the sake of saving some bytes.

Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
2007-04-25 22:28:29 -07:00
Arnaldo Carvalho de Melo b529ccf279 [NETLINK]: Introduce nlmsg_hdr() helper
For the common "(struct nlmsghdr *)skb->data" sequence, so that we reduce the
number of direct accesses to skb->data and for consistency with all the other
cast skb member helpers.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:26:34 -07:00
Arnaldo Carvalho de Melo 27a884dc3c [SK_BUFF]: Convert skb->tail to sk_buff_data_t
So that it is also an offset from skb->head, reduces its size from 8 to 4 bytes
on 64bit architectures, allowing us to combine the 4 bytes hole left by the
layer headers conversion, reducing struct sk_buff size to 256 bytes, i.e. 4
64byte cachelines, and since the sk_buff slab cache is SLAB_HWCACHE_ALIGN...
:-)

Many calculations that previously required that skb->{transport,network,
mac}_header be first converted to a pointer now can be done directly, being
meaningful as offsets or pointers.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:26:28 -07:00
Arnaldo Carvalho de Melo c1d2bbe1cd [SK_BUFF]: Introduce skb_reset_network_header(skb)
For the common, open coded 'skb->nh.raw = skb->data' operation, so that we can
later turn skb->nh.raw into a offset, reducing the size of struct sk_buff in
64bit land while possibly keeping it as a pointer on 32bit.

This one touches just the most simple case, next will handle the slightly more
"complex" cases.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:24:46 -07:00
Arnaldo Carvalho de Melo 98e399f82a [SK_BUFF]: Introduce skb_mac_header()
For the places where we need a pointer to the mac header, it is still legal to
touch skb->mac.raw directly if just adding to, subtracting from or setting it
to another layer header.

This one also converts some more cases to skb_reset_mac_header() that my
regex missed as it had no spaces before nor after '=', ugh.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:24:41 -07:00
YOSHIFUJI Hideaki 02ea4923b4 [NET] TIPC: Use htons() where appropriate.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:24:01 -07:00
YOSHIFUJI Hideaki c430728526 [NET] TIPC: Fix whitespace errors.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-10 23:20:15 -08:00
Robert P. J. Day 5cbded585d [PATCH] getting rid of all casts of k[cmz]alloc() calls
Run this:

	#!/bin/sh
	for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do
	  echo "De-casting $f..."
	  perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f
	done

And then go through and reinstate those cases where code is casting pointers
to non-pointers.

And then drop a few hunks which conflicted with outstanding work.

Cc: Russell King <rmk@arm.linux.org.uk>, Ian Molton <spyro@f2s.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Greg KH <greg@kroah.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Paul Fulghum <paulkf@microgate.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Karsten Keil <kkeil@suse.de>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Ian Kent <raven@themaw.net>
Cc: Steven French <sfrench@us.ibm.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Cc: Jaroslav Kysela <perex@suse.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-13 09:05:58 -08:00
Christoph Lameter e18b890bb0 [PATCH] slab: remove kmem_cache_t
Replace all uses of kmem_cache_t with struct kmem_cache.

The patch was generated using the following script:

	#!/bin/sh
	#
	# Replace one string by another in all the kernel sources.
	#

	set -e

	for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do
		quilt add $file
		sed -e "1,\$s/$1/$2/g" $file >/tmp/$$
		mv /tmp/$$ $file
		quilt refresh
	done

The script was run like this

	sh replace kmem_cache_t "struct kmem_cache"

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07 08:39:25 -08:00
Arnaldo Carvalho de Melo 2710b57ff9 [TIPC]: Use kzalloc where appropriate
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-02 21:30:21 -08:00
Al Viro 3e6c8cd566 [TIPC]: endianness annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02 21:21:08 -08:00
Adrian Bunk d55b4c631e [TIPC] net/tipc/port.c: fix NULL dereference
The correct order is: NULL check before dereference

Spotted by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-11-01 15:42:33 -08:00
Allan Stephens 665d866958 [TIPC]: Updated TIPC version number to 1.6.2
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 19:55:24 -07:00
Allan Stephens 53cfd1e102 [TIPC]: Unrecognized configuration command now returns error message
This patch causes TIPC to return an error message when it receives
an unrecognized configuration command.  (Previously, the sender
received no feedback.)

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 19:55:23 -07:00
Lijun Chen eb409460b1 [TIPC]: Added subscription cancellation capability
This patch allows a TIPC application to cancel an existing
topology service subscription by re-requesting the subscription
with the TIPC_SUB_CANCEL filter bit set.  (All other bits of
the cancel request must match the original subscription request.)

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 19:55:22 -07:00
Allan Stephens fc144deec6 [TIPC]: Can now list multicast link on an isolated network node
This patch fixes a minor bug that prevents "tipc-config -l" from
displaying the multicast link if a TIPC node has never successfully
established at least one unicast link.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 19:55:21 -07:00
Allan Stephens 2de07f6156 [TIPC]: Fixed slow link reactivation when link tolerance is large
This patch corrects an issue wherein a previouly failed node could
not reestablish a links to a non-failing node in the TIPC network
until the latter node detected the link failure itself (which might
be configured to take up to 30 seconds).  The non-failing node now
responds to link setup requests from a previously failed node in at
most 1 second, allowing it to detect the link failure more quickly.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 19:55:20 -07:00
Allan Stephens 08c31f7167 [TIPC]: Name publication events now delivered in chronological order
This patch tivially re-orders the entries in TIPC's list of local
publications so that applications will receive publication events
in the order they were published.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 19:55:19 -07:00
Allan Stephens 3a8d12142e [TIPC]: Add support for Ethernet VLANs
This patch enhances TIPC's Ethernet support to include VLAN interfaces.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 19:55:18 -07:00
Allan Stephens a3df92c73b [TIPC]: Remove code bloat introduced by print buffer rework
This patch allows the compiler to optimize out any code that tries to
send debugging output to the null print buffer (TIPC_NULL), a capability
that was unintentionally broken during the recent print buffer rework.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 19:55:18 -07:00
Allan Stephens cfb0c0890b [TIPC]: Optimize wakeup logic when socket has no waiting processes
This patch adds a simple test so TIPC doesn't try waking up processes
waiting on a socket if there are none waiting.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 19:55:17 -07:00
Allan Stephens e91ed0bcdf [TIPC]: Added duplicate node address detection capability
TIPC now rejects and logs link setup requests from node <Z.C.N> if the
receiving node already has a functional link to that node on the associated
interface, or if the requestor is using the same <Z.C.N> as the receiver.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 19:55:16 -07:00
Allan Stephens eb5959c2bd [TIPC]: Stream socket can now send > 66000 bytes at a time
The stream socket send code was not initializing some required fields
of the temporary msghdr structure it was utilizing; this is now fixed.
A check has also been added to detect if a user illegally specifies
a destination address when sending on an established stream connection.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 19:55:15 -07:00
Allan Stephens 29ede244cc [TIPC]: Debug print buffer enhancements and fixes
This change modifies TIPC's print buffer code as follows:
1) Now supports small print buffers (min. size reduced from 512 bytes to 64)
2) Now uses TIPC_NULL print buffer structure to indicate null device
   instead of NULL pointer (this simplified error handling)
3) Fixed misuse of console buffer structure by tipc_dump()
4) Added and corrected comments in various places

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 19:55:14 -07:00
Allan Stephens 065fd1772a [TIPC]: Add missing unlock in port timeout code.
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-18 19:55:13 -07:00
Al Viro 28c4dadd3a [PATCH] tipc __user annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-10 15:37:21 -07:00
Jeff Garzik 617dbeaa3f [TIPC]: fix printk warning
gcc spits out this warning:

net/tipc/link.c: In function ‘link_retransmit_failure’:
net/tipc/link.c:1669: warning: cast from pointer to integer of different
size

More than a little bit ugly, storing integers in void*, but at least the
code is correct, unlike some of the more crufty Linux kernel code found
elsewhere.

Rather than having two casts to massage the value into u32, it's easier
just to have a single cast and use "%lu", since it's just a printk.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-04 00:31:03 -07:00
Panagiotis Issaris 9df3f3d28b [TIPC]: Removing useless casts
Removing useless casts

Signed-off-by: Panagiotis Issaris <takis@issaris.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-21 15:52:20 -07:00
Panagiotis Issaris 0da974f4f3 [NET]: Conversions from kmalloc+memset to k(z|c)alloc.
Signed-off-by: Panagiotis Issaris <takis@issaris.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-21 14:51:30 -07:00
Allan Stephens 863fae666a [TIPC] Fixed sk_buff panic caused by tipc_link_bundle_buf (REVISED)
The recent change to direct inspection of bundle buffer tailroom did not
account for the possiblity of unrequested tailroom added by skb_alloc(),
thereby allowing a bundle to be created that exceeds the current link MTU.
An additional check now ensures that bundling works correctly no matter
if the bundle buffer is smaller, larger, or equal to the link MTU.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-03 19:39:36 -07:00
Allan Stephens 0702056f9f [TIPC]: Initial activation message now includes TIPC version number
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29 17:08:20 -07:00
Allan Stephens ea13847b24 [TIPC]: Improve response to requests for node/link information
Now allocates reply space for "get links" request based on number of actual
links, not number of potential links.  Also, limits reply to "get links" and
"get nodes" requests to 32KB to match capabilities of tipc-config utility
that issued request.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
2006-06-29 17:08:15 -07:00
Allan Stephens e49060c7ca [TIPC]: Fixed skb_under_panic caused by tipc_link_bundle_buf
Now determines tailroom of bundle buffer by directly inspection of buffer.
Previously, buffer was assumed to have a max capacity equal to the link MTU,
but the addition of link MTU negotiation means that the link MTU can increase
after the bundle buffer is allocated.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29 17:08:10 -07:00
Ingo Molnar 34af946a22 [PATCH] spin/rwlock init cleanups
locking init cleanups:

 - convert " = SPIN_LOCK_UNLOCKED" to spin_lock_init() or DEFINE_SPINLOCK()
 - convert rwlocks in a similar manner

this patch was generated automatically.

Motivation:

 - cleanliness
 - lockdep needs control of lock initialization, which the open-coded
   variants do not give
 - it's also useful for -rt and for lock debugging in general

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:39 -07:00
Allan Stephens 3ba07e65b2 [TIPC]: Fix incorrect correction to discovery timer frequency computation.
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:53:47 -07:00
Allan Stephens 65f51ef097 [TIPC]: Get rid of dynamically allocated arrays in broadcast code.
This change improves an earlier change which replaced the large local
variable arrays used during broadcasting with dynamically allocated arrays.
The temporary arrays are now incoprorated into the multicast link data
structure.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:53:20 -07:00
Allan Stephens 5392d64688 [TIPC]: Fixed link switchover bugs
Incorporates several related fixes:
- switchover now occurs when switching from an active link to a standby link
- failure of a standby link no longer initiates switchover
- links now display correct # of received packtes following reactivation

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:52:50 -07:00
Allan Stephens a10bd924a4 [TIPC]: Enhanced & cleaned up system messages; fixed 2 obscure memory leaks.
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:52:17 -07:00
Allan Stephens f131072c3d [TIPC]: First phase of assert() cleanup
This also contains enhancements to simplify comparisons in name table
publication removal algorithm and to simplify name table sanity checking
when shutting down TIPC.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:51:37 -07:00
Allan Stephens e100ae92a6 [TIPC]: Disallow config operations that aren't supported in certain modes.
This change provides user-friendly feedback when TIPC is unable to perform
certain configuration operations that don't work properly in certain modes.
(In particular, any reconfiguration request that would temporarily take TIPC
from network mode to standalone mode, or from standalone mode to not running
mode, is disallowed.)

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:51:08 -07:00
Allan Stephens c33d53b235 [TIPC]: Fixed memory leak in tipc_link_send() when destination is unreachable
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:50:30 -07:00
Allan Stephens a75bf87427 [TIPC]: Added missing warning for out-of-memory condition
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:50:01 -07:00
Allan Stephens a7513528cd [TIPC]: Withdrawing all names from nameless port now returns success, not error
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:49:33 -07:00
Allan Stephens 51f9cc1ff8 [TIPC]: Optimized argument validation done by connect().
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:49:06 -07:00
Allan Stephens a3b0a5a9d0 [TIPC]: Simplify code for returning partial success of stream send request.
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:48:22 -07:00
Allan Stephens 4b087b28a6 [TIPC]: recvmsg() now returns TIPC ancillary data using correct level (SOL_TIPC)
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:47:44 -07:00
Allan Stephens 499786516f [TIPC]: Improved performance of error checking during socket creation.
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:47:18 -07:00
Allan Stephens 1303e8f173 [TIPC]: Stream socket send indicates partial success if data partially sent.
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:46:50 -07:00
Allan Stephens bdd94789d2 [TIPC]: Connected send now checks socket state when retrying congested send.
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:45:53 -07:00
Allan Stephens 3546c7508d [TIPC]: Can now return destination name of form {0,x,y} via ancillary data.
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:45:24 -07:00
Allan Stephens 3388007bc4 [TIPC]: Implied connect now saves dest name for retrieval as ancillary data.
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:44:57 -07:00
Allan Stephens 6b384de853 [TIPC]: Fixed connect() to detect a dest address that is missing or too short.
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:44:27 -07:00
Allan Stephens e9024f0f79 [TIPC]: Non-operation-affecting corrections to comments & function definitions.
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:43:57 -07:00
Allan Stephens 687a25f1cd [TIPC]: Validate entire interface name when locating bearer to enable.
This fix prevents a bearer from being enabled using the wrong interface.
For example, specifying "eth:eth14" might enable "eth:eth1" by mistake.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
2006-06-25 23:43:21 -07:00
Allan Stephens a592ea6362 [TIPC]: Added support for MODULE_VERSION capability.
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:42:47 -07:00
Allan Stephens 8b1f0a92e9 [TIPC]: Fix misleading comment in buf_discard() routine.
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:42:19 -07:00
Allan Stephens 70cb234770 [TIPC]: Fixed privilege checking typo in dest_name_check().
This patch originated by Stephane Ouellette <ouellettes@videotron.ca>.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:41:47 -07:00
Eric Sesterhenn 3ac90216ab [TIPC] Fix for NULL pointer dereference
This fixes a bug spotted by the coverity checker, bug id #366. If
(mod(seqno - prev) != 1) we set buf to NULL, dereference it in the for
case, and set it to whatever value happes to be at adress 0+next, if it
happens to be non-zero, we even stay in the loop. It seems that the author
intended to break there.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:41:15 -07:00
Allan Stephens a4e0927902 [TIPC]: Allow compilation when CONFIG_TIPC_DEBUG is not set.
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:40:35 -07:00
Allan Stephens d356eeba8e [TIPC]: Multicast link failure now resets all links to "nacking" node.
This fix prevents node from crashing.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:40:01 -07:00
Allan Stephens 260082471e [TIPC]: Links now validate destination node specified by incoming messages.
This fix prevents link flopping and name table inconsistency problems arising
when a node is assigned a different <Z.C.N> value than it used previously.
(Changing the <Z.C.N> value causes other nodes to have two link endpoints
sending to the same MAC address using two different destination <Z.C.N> values,
requiring the receiving node to filter out the unwanted messages.)

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:39:31 -07:00
Allan Stephens 9688243b63 [TIPC]: Allow ports to receive multicast messages through native API.
This fix prevents a kernel panic if an application mistakenly sends a
multicast message to  TIPC's topology service or configuration service.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:38:58 -07:00
Allan Stephens 4938450789 [TIPC]: Corrected potential misuse of tipc_media_addr structure.
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:38:29 -07:00
Allan Stephens 2535ec50b7 [TIPC]: Use correct upper bound when validating network zone number.
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:38:00 -07:00
Allan Stephens 9ab230f82f [TIPC]: Prevent name table corruption if no room for new publication
Now exits cleanly if attempt to allocate larger array of subsequences fails,
without losing track of pointer to existing array.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:37:24 -07:00
Jon Maloy 5e3c8854c1 [TIPC] Improved tolerance to promiscuous mode interface
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:36:43 -07:00
Jesper Juhl 63903ca6af [NET]: Remove redundant NULL checks before [kv]free
Redundant NULL check before kfree removal
from net/

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-04-18 15:57:55 -07:00
Alexey Dobriyan 53b3531bbb [PATCH] s/;;/;/g
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:24 -08:00
Per Liden 87546b1c25 [TIPC]: Avoid compiler warning
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 22:38:33 -08:00
Per Liden de70c5ba43 [TIPC]: Reduce stack usage
The node_map struct can be quite large (516 bytes) and allocating two of
them on the stack is not a good idea since we might only have a 4K stack
to start with.

Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 22:38:14 -08:00
Adrian Bunk 988f088a8e [TIPC]: Cleanups
This patch contains the following possible cleanups:
- make needlessly global code static
- #if 0 the following unused global functions:
  - name_table.c: tipc_nametbl_print()
  - name_table.c: tipc_nametbl_dump()
  - net.c: tipc_net_next_node()

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 22:37:52 -08:00
Per Liden 7c501a5960 [TIPC]: Remove unused functions
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 22:37:27 -08:00
Sam Ravnborg 05790c6456 [TIPC]: Remove inlines from *.c
With reference to latest discussions on linux-kernel with respect to
inline here is a patch for tipc to remove all inlines as used in
the .c files. See also chapter 14 in Documentation/CodingStyle.

Before:
   text        data     bss     dec     hex filename
 102990        5292    1752  110034   1add2 tipc.o

Now:
   text        data     bss     dec     hex filename
 101190        5292    1752  108234   1a6ca tipc.o

This is a nice text size reduction which will improve icache usage.
In some cases bigger (> 4 lines) functions where declared inline
and used in many places, they are most probarly no longer inlined by gcc
resulting in the size reduction.
There are several one liners that no longer are declared inline, but gcc
should inline these just fine without the inline hint.

With this patch applied one warning is added about an unused static
function - that was hidded by utilising inline before.
The function in question were kept so this patch is solely a
inline removal patch.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 22:37:04 -08:00
Sam Ravnborg 1fc54d8f49 [TIPC]: Fix simple sparse warnings
Tried to run the new tipc stack through sparse.
Following patch fixes all cases where 0 was used
as replacement of NULL.
Use NULL to document this is a pointer and to silence sparse.

This brough sparse warning count down with 127 to 24 warnings.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 22:36:47 -08:00
Per Liden 4323add677 [TIPC] Avoid polluting the global namespace
This patch adds a tipc_ prefix to all externally visible symbols.

Signed-off-by: Per Liden <per.liden@ericsson.com>
2006-01-18 00:45:16 +01:00