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2012-07-13tipc: remove print_buf and deprecated log buffer codeErik Hugne
The internal log buffer handling functions can now safely be removed since there is no code using it anymore. Requests to interact with the internal tipc log buffer over netlink (in config.c) will report 'obsolete command'. This represents the final removal of any references to a struct print_buf, and the removal of the struct itself. We also get rid of a TIPC specific Kconfig in the process. Finally, log.h is removed since it is not needed anymore. Signed-off-by: Erik Hugne <erik.hugne@ericsson.com> Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-07-13tipc: phase out most of the struct print_buf usageErik Hugne
The tipc_printf is renamed to tipc_snprintf, as the new name describes more what the function actually does. It is also changed to take a buffer and length parameter and return number of characters written to the buffer. All callers of this function that used to pass a print_buf are updated. Final removal of the struct print_buf itself will be done synchronously with the pending removal of the deprecated logging code that also was using it. Functions that build up a response message with a list of ports, nametable contents etc. are changed to return the number of characters written to the output buffer. This information was previously hidden in a field of the print_buf struct, and the number of chars written was fetched with a call to tipc_printbuf_validate. This function is removed since it is no longer referenced nor needed. A generic max size ULTRA_STRING_MAX_LEN is defined, named in keeping with the existing TIPC_TLV_ULTRA_STRING, and the various definitions in port, link and nametable code that largely duplicated this information are removed. This means that amount of link statistics that can be returned is now increased from 2k to 32k. The buffer overflow check is now done just before the reply message is passed over netlink or TIPC to a remote node and the message indicating a truncated buffer is changed to a less dramatic one (less CAPS), placed at the end of the message. Signed-off-by: Erik Hugne <erik.hugne@ericsson.com> Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-07-13tipc: simplify print buffer handling in tipc_printfErik Hugne
tipc_printf was previously used both to construct debug traces and to append data to buffers that should be sent over netlink to the tipc-config application. A global print_buffer was used to format the string before it was copied to the actual output buffer. This could lead to concurrent access of the global print_buffer, which then had to be lock protected. This is simplified by changing tipc_printf to append data directly to the output buffer using vscnprintf. With the new implementation of tipc_printf, there is no longer any risk of concurrent access to the internal log buffer, so the lock (and the comments describing it) are no longer strictly necessary. However, there are still a few functions that do grab this lock before resizing/dumping the log buffer. We leave the lock, and these functions untouched since they will be removed with a subsequent commit that drops the deprecated log buffer handling code Signed-off-by: Erik Hugne <erik.hugne@ericsson.com> Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-07-13tipc: simplify link_print by divorcing it from using tipc_printfPaul Gortmaker
To pave the way for a pending cleanup of tipc_printf, and removal of struct print_buf entirely, we make that task simpler by converting link_print to issue its messages with standard printk infrastructure. [Original idea separated from a larger patch from Erik Hugne <erik.hugne@ericsson.com>] Cc: Erik Hugne <erik.hugne@ericsson.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-07-13tipc: remove TIPC packet debugging functions and macrosErik Hugne
The link queue traces and packet level debug functions served a purpose during early development, but are now redundant since there are other, more capable tools available for debugging at the packet level. The TIPC_DEBUG Kconfig option is removed since it does not provide any extra debugging features anymore. This gets rid of a lot of tipc_printf usages, which will make the pending cleanup work of that function easier. Signed-off-by: Erik Hugne <erik.hugne@ericsson.com> Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-07-13tipc: use standard printk shortcut macros (pr_err etc.)Erik Hugne
All messages should go directly to the kernel log. The TIPC specific error, warning, info and debug trace macro's are removed and all references replaced with pr_err, pr_warn, pr_info and pr_debug. Commonly used sub-strings are explicitly declared as a const char to reduce .text size. Note that this means the debug messages (changed to pr_debug), are now enabled through dynamic debugging, instead of a TIPC specific Kconfig option (TIPC_DEBUG). The latter will be phased out completely Signed-off-by: Erik Hugne <erik.hugne@ericsson.com> Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> [PG: use pr_fmt as suggested by Joe Perches <joe@perches.com>] Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-07-12tipc: limit error messages relating to memory leak to one linePaul Gortmaker
With the default name table size of 1024, it is possible that the sanity check in tipc_nametbl_stop could spam out 1024 essentially identical error messages if memory was corrupted or similar. Limit it to issuing no more than a single message. The actual chain number (i.e. 0 --> 1023) wouldn't provide any useful insight if/when such an instance happened, so don't bother printing out that value. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-07-12tipc: factor stats struct out of the larger link structPaul Gortmaker
This is done to improve readability, and so that we can give the struct a name that will allow us to declare a local pointer to it in code, instead of having to always redirect through the link struct to get to it. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-07-10net: Fix non-kernel-doc comments with kernel-doc start markerBen Hutchings
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-10net: Fix (nearly-)kernel-doc comments for various functionsBen Hutchings
Fix incorrect start markers, wrapped summary lines, missing section breaks, incorrect separators, and some name mismatches. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-04net: Remove casts to same typeJoe Perches
Adding casts of objects to the same type is unnecessary and confusing for a human reader. For example, this cast: int y; int *p = (int *)&y; I used the coccinelle script below to find and remove these unnecessary casts. I manually removed the conversions this script produces of casts with __force and __user. @@ type T; T *p; @@ - (T *)p + p Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30tipc: compress out gratuitous extra carriage returnsPaul Gortmaker
Some of the comment blocks are floating in limbo between two functions, or between blocks of code. Delete the extra line feeds between any comment and its associated following block of code, to be consistent with the majority of the rest of the kernel. Also delete trailing newlines at EOF and fix a couple trivial typos in existing comments. This is a 100% cosmetic change with no runtime impact. We get rid of over 500 lines of non-code, and being blank line deletes, they won't even show up as noise in git blame. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-27tipc: Reject payload messages with invalid message typeAllan Stephens
Adds check to ensure TIPC sockets reject incoming payload messages that have an unrecognized message type. Remove the old open question about whether TIPC_ERR_NO_PORT is the proper return value. It is appropriate here since there are valid instances where another node can make use of the reply, and at this point in time the host is already broadcasting TIPC data, so there are no real security concerns. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-26tipc: Enhance error checking of published namesAllan Stephens
Consolidates validation of scope and name sequence range values into a single routine where it applies both to local name publications and to name publications issued by other nodes in the network. This change means that the scope value for non-local publications is now validated and the name sequence range for local publications is now validated only once. Additionally, a publication attempt that fails validation now creates an entry in the system log file only if debugging capabilities have been enabled; this prevents the system log from being cluttered up with messages caused by a defective application or network node. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-26tipc: Create helper routine to delete unused name sequence structureAllan Stephens
Replaces two identical chunks of code that delete an unused name sequence structure from TIPC's name table with calls to a new routine that performs this operation. This change is cosmetic and doesn't impact the operation of TIPC. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-26tipc: remove redundant memset and stale comment from subscr.cAllan Stephens
Eliminate code to zero-out the main topology service structure, which is already zeroed-out. Get rid of a comment documenting a field of the main topology service structure that no longer exists. Both are cosmetic changes with no impact on runtime behaviour. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-26tipc: Optimize initialization of network topology serviceAllan Stephens
Initialization now occurs in the calling thread of control, rather than being deferred to the TIPC tasklet. With the current codebase, the deferral is no longer necessary. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-26tipc: Enhance re-initialization of network topology serviceAllan Stephens
Streamlines the job of re-initializing TIPC's network topology service when a node's network address is first assigned. Rather than destroying the topology server port and breaking its connections to existing subscribers, TIPC now simply lets the service continue running (since the change to the port identifier of each port used by the topology service no longer impacts the flow of messages between the service and its subscribers). This enhancement means that applications that utilize the topology service prior to the assignment of TIPC's network address no longer need to re-establish their subscriptions when the address is finally assigned. However, it is worth noting that any subsequent events for existing subscriptions report the new port identifier of the publishing port, rather than the original port identifier. (For example, a name that was previously reported as being published by <0.0.0:ref> may be subsequently withdrawn by <Z.C.N:ref>.) This doesn't impact any of the existing known userspace in tipc-utils, since (a) TIPC continues to treat references to the original port ID correctly and (b) normal use cases assign an address before active use. However if there does happen to be some rare/custom application out there that was relying on this, they can simply bypass the enhancement by issuing a subscription to {0,0} and break its connection to the topology service, if an associated withdrawal event occurs. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-26tipc: Optimize termination of configuration serviceAllan Stephens
Termination no longer tests to see if the configuration service port was successfully created or not. In the unlikely event that the port was not created, attempting to delete the non-existent port is detected gracefully and causes no harm. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-26tipc: Optimize initialization of configuration serviceAllan Stephens
Initialization now occurs in the calling thread of control, rather than being deferred to the TIPC tasklet. With the current codebase, the deferral is no longer necessary. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-26tipc: Optimize re-initialization of configuration serviceAllan Stephens
Streamlines the job of re-initializing TIPC's configuration service when a node's network address is first assigned. Rather than destroying the configuration server port and then recreating it, TIPC now simply withdraws the existing {0,<0.0.0>} name publication and creates a new {0,<Z.C.N>} name publication that identifies the node's network address to interested subscribers. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-24tipc: remove inline instances from C source files.Paul Gortmaker
Untie gcc's hands and let it do what it wants within the individual source files. There are two files, node.c and port.c -- only the latter effectively changes (gcc-4.5.2). Objdump shows gcc deciding to not inline port_peernode(). Suggested-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-23net: add a limit parameter to sk_add_backlog()Eric Dumazet
sk_add_backlog() & sk_rcvqueues_full() hard coded sk_rcvbuf as the memory limit. We need to make this limit a parameter for TCP use. No functional change expected in this patch, all callers still using the old sk_rcvbuf limit. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Maciej Żenczykowski <maze@google.com> Cc: Yuchung Cheng <ycheng@google.com> Cc: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Cc: Rick Jones <rick.jones2@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-19tipc: Ensure network address change doesn't impact configuration serviceAllan Stephens
Enhances command validation done by TIPC's configuration service so that it works properly even if the node's network address is changed in mid-operation. The default node address of <0.0.0> is now recognized as an alias for "this node" even after a new network address has been assigned. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-19tipc: Ensure network address change doesn't impact rejected messageAllan Stephens
Revises handling of a rejected message to ensure that a locally originated message is returned properly even if the node's network address is changed in mid-operation. The routine now treats the default node address of <0.0.0> as an alias for "this node" when determining where to send a returned message. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-19tipc: handle <0.0.0> as an alias for this node on outgoing msgsAllan Stephens
Revises handling of send routines for payload messages to ensure that they are processed properly even if the node's network address is changed in mid-operation. The routines now treat the default node address of <0.0.0> as an alias for "this node" when determining where to send an outgoing message. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-19tipc: properly handle off-node send requests with invalid addrAllan Stephens
There are two send routines that might conceivably be asked by an application to send a message off-node when the node is still using the default network address. These now have an added check that detects this and rejects the message gracefully. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-19tipc: take lock while updating node network addressAllan Stephens
The routine that changes the node's network address now takes TIPC's network lock in write mode while the main address variable and associated data structures are being changed; this is needed to ensure that the link subsystem won't attempt to send a message off-node until the sending port's message header template has been updated with the node's new network address. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-19tipc: Ensure network address change doesn't impact local connectionsAllan Stephens
Revises routines that deal with connections between two ports on the same node to ensure the connection is not impacted if the node's network address is changed in mid-operation. The routines now treat the default node address of <0.0.0> as an alias for "this node" in the following situations: 1) Incoming messages destined to a connected port now handle the alias properly when validating that the message was sent by the expected peer port, ensuring that the message will be accepted regardless of whether it specifies the node's old network address or it's current one. 2) The code which completes connection establishment now handles the alias properly when determining if the peer port is on the same node as the connected port. An added benefit of addressing issue 1) is that some peer port validation code has been relocated to TIPC's socket subsystem, which means that validation is no longer done twice when a message is sent to a non-socket port (such as TIPC's configuration service or network topology service). Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-19tipc: delete duplicate peerport/peernode helper functionsAllan Stephens
Prior to commit 23dd4cce387124ec3ea06ca30d17854ae4d9b772 "tipc: Combine port structure with tipc_port structure" there was a need for the two sets of helper functions. But now they are just duplicates. Remove the globally visible ones, and mark the remaining ones as inline. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-19tipc: Ensure network address change doesn't impact new portAllan Stephens
Re-orders port creation logic so that the initialization of a new port's message header template occurs while the port list lock is held. This ensures that a change to the node's network address that occurs at the same time as the port is being created does not result in the template identifying the sender using the former network address. The new approach guarantees that the new port's template is using the current network address or that it will be updated when the address changes. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-19tipc: Optimize re-initialization of port message header templatesAllan Stephens
Removes an unnecessary check in the logic that updates the message header template for existing ports when a node's network address is first assigned. There is no longer any need to check to see if the node's network address has actually changed since the calling routine has already verified that this is so. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-19tipc: Ensure network address change doesn't impact name table updatesAllan Stephens
Revises routines that add and remove an entry from a node's name table so that the publication scope lists are updated properly even if the node's network address is changed in mid-operation. The routines now recognize the default node address of <0.0.0> as an alias for "this node" even after a new network address has been assigned. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-19tipc: Add routines for safe checking of node's network addressAllan Stephens
Introduces routines that test whether a given network address is equal to a node's own network address or if it lies within the node's own network cluster, and which work properly regardless of whether the node is using the default network address <0.0.0> or a non-zero network address that is assigned later on. In essence, these routines ensure that address <0.0.0> is treated as an alias for "this node", regardless of which network address the node is actually using. Old users of the pre-existing more strict match in_own_cluster() have been accordingly redirected to what is now called in_own_cluster_exact() --- which does not extend matching to <0,0,0>. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-19tipc: Don't record failed publication attempt as a successAllan Stephens
No longer increments counter of number of publications by a node if an attempt to add a new publication fails. This prevents TIPC from incorrectly blocking future publications because the configured maximum number of publications has been reached. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-19tipc: Update node-scope publications when network address is assignedAllan Stephens
Ensures that node-scope name publications that exist prior to the configuration of a node's network address are properly re-initialized with that address when it is assigned. TIPC's node-scope publications are now tracked using a publications list like the lists used for cluster-scope and zone-scope publications so they can be easily updated when required. The inclusion of node scope name publications in a conventional publication list means that they must now also be withdrawn, just like cluster and zone scope publications are currently withdrawn. So some conditional tests on scope ==/!= TIPC_NODE_SCOPE are inserted/removed accordingly. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-19tipc: Separate cluster-scope and zone-scope names into distinct listsAllan Stephens
Utilizes distinct lists to track zone-scope and cluster-scope names published by a node. For now, TIPC continues to process the entries in both lists in the same way; however, an upcoming patch will utilize the existence of the lists to prevent the sending of cluster-scope names to nodes that are not part of the local cluster. To achieve this, an array of publication lists is introduced, so that they can be iterated over and accessed via publ->scope as an index where convenient. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-18tipc: Factor out name publication code to a separate functionAllan Stephens
This is done so that it can be reused with differing publication lists, instead of being hard coded to the cluster publicaton list. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-18tipc: introduce publication lists structAllan Stephens
There is currently a single list that is containing both cluster-scope and zone-scope publications, and the list count is a separate free floating variable. Create a struct to bind the count to the list, and to pave the way for factoring out the publications into zone/cluster/node scope. The current "publ_root" most matches what will be the cluster scope list, so it is named accordingly in this commit. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-04-15net: cleanup unsigned to unsigned intEric Dumazet
Use of "unsigned int" is preferred to bare "unsigned" in net tree. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-29tipc: Optimize setting of immutable payload message header fieldsAllan Stephens
Optimizes routines that send payload messages so that they no longer update the "originating node" and "originating port" fields of the outgoing message header template, since these fields are initialized when the sending port is created and never change thereafter. Also optimizes the routine which updates the message header template when a connection to a port is established, for the same reason. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-02-29tipc: Eliminate obsolete code for re-sending a messageAllan Stephens
Removes code that updated the "previous node" field of an out-going message over TIPC's links. Such updating is unnecessary since the removal of the prototype multi-cluster capability means that all outgoing messages are generated locally and already have this field populated correctly. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-02-29tipc: Un-inline port routine for processing incoming messagesAllan Stephens
Converts a non-trivial routine from inline to non-inline form to avoid bloating the TIPC code base with 6 copies of its body. This change is essentially cosmetic, and doesn't change existing TIPC behavior. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-02-24tipc: Eliminate support for tipc_mode global variableAllan Stephens
Removes all references to the global variable that records whether TIPC is running in "single node" mode or "network" mode, since this information can be easily deduced from the global variable that records TIPC's network address. (i.e. a non-zero network address means that TIPC is running in network mode.) The changes made update most existing mode-based checks to use the network address global variable. A few checks that are no longer needed are removed entirely, along with any associated code lying on non-executable control paths. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-02-24tipc: Eliminate obsolete support for "not running" modeAllan Stephens
Removes all references to TIPC's "not running" mode, since the removal of support for the native API means that there is no longer any way to interact with TIPC if it has not been initialized. The changes made consist of removing mode-based checks that are no longer needed, along with any associated code lying on non-executable control paths. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-02-24tipc: Revert name table translation optimizationAllan Stephens
Restores name table translation using a non-zero domain that is "out of scope", which was broken by an earlier commit (5d9c54c1e9ececcf7e99c4f014f9bec7ee3a7def). Comments have now been added to the name table translation routine to make it clear that there are actually three possible outcomes to a translation request (found/not found/deferred), rather than just two (found/not found). Note that a straightforward revert of the earlier commit is not possible, as other changes to the name table translation logic have occurred since the incorrect optimization was made. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-02-24tipc: Minor optimization to broadcast link synchronization logicAllan Stephens
Optimizes processing done when contact with a neighboring node is established to avoid recording the current state of outgoing broadcast messages if the neighboring node isn't a valid broadcast link destination, since this state information isn't needed for such nodes. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-02-24tipc: Remove obsolete comments about routing table updatesAllan Stephens
Eliminates a block of comments that describe how routing table updates are to be handled. These comments no longer apply following the removal of TIPC's prototype multi-cluster support. Note that these changes are essentially cosmetic in nature, and have no impact on the actual operation of TIPC. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-02-24tipc: Eliminate trivial buffer manipulation helper routinesAllan Stephens
Gets rid of two inlined routines that simply call existing sk_buff manipulation routines, since there is no longer any extra processing done by the helper routines. Note that these changes are essentially cosmetic in nature, and have no impact on the actual operation of TIPC. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-02-24tipc: Hide internal details of node table implementationAllan Stephens
Relocates information about the size of TIPC's node table index and its associated hash function, since only node subsystem routines need to have access to this information. Note that these changes are essentially cosmetic in nature, and have no impact on the actual operation of TIPC. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>