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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>
2012-04-30tipc: 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>
2011-12-19net: two vzalloc() cleanupsEric Dumazet
We can use vzalloc() helper now instead of __vmalloc() trick Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-01tipc: remove zeroing assignments to static global variablesAllan Stephens
Cleans up TIPC's source code to eliminate the needless initialization of static variables to zero. These changes are purely cosmetic and do not alter the operation of TIPC in any way. Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-01tipc: cleanup various cosmetic whitespace issuesAllan Stephens
Cleans up TIPC's source code to eliminate deviations from generally accepted coding conventions relating to leading/trailing white space and white space around commas, braces, cases, and sizeof. These changes are purely cosmetic and do not alter the operation of TIPC in any way. Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-16tipc: cleanup function namespacestephen hemminger
Do some cleanups of TIPC based on make namespacecheck 1. Don't export unused symbols 2. Eliminate dead code 3. Make functions and variables local 4. Rename buf_acquire to tipc_buf_acquire since it is used in several files Compile tested only. This make break out of tree kernel modules that depend on TIPC routines. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Acked-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-16tipc: fix lockdep warning on address assignmentNeil Horman
So in the forward porting of various tipc packages, I was constantly getting this lockdep warning everytime I used tipc-config to set a network address for the protocol: [ INFO: possible circular locking dependency detected ] 2.6.33 #1 tipc-config/1326 is trying to acquire lock: (ref_table_lock){+.-...}, at: [<ffffffffa0315148>] tipc_ref_discard+0x53/0xd4 [tipc] but task is already holding lock: (&(&entry->lock)->rlock#2){+.-...}, at: [<ffffffffa03150d5>] tipc_ref_lock+0x43/0x63 [tipc] which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&(&entry->lock)->rlock#2){+.-...}: [<ffffffff8107b508>] __lock_acquire+0xb67/0xd0f [<ffffffff8107b78c>] lock_acquire+0xdc/0x102 [<ffffffff8145471e>] _raw_spin_lock_bh+0x3b/0x6e [<ffffffffa03152b1>] tipc_ref_acquire+0xe8/0x11b [tipc] [<ffffffffa031433f>] tipc_createport_raw+0x78/0x1b9 [tipc] [<ffffffffa031450b>] tipc_createport+0x8b/0x125 [tipc] [<ffffffffa030f221>] tipc_subscr_start+0xce/0x126 [tipc] [<ffffffffa0308fb2>] process_signal_queue+0x47/0x7d [tipc] [<ffffffff81053e0c>] tasklet_action+0x8c/0xf4 [<ffffffff81054bd8>] __do_softirq+0xf8/0x1cd [<ffffffff8100aadc>] call_softirq+0x1c/0x30 [<ffffffff810549f4>] _local_bh_enable_ip+0xb8/0xd7 [<ffffffff81054a21>] local_bh_enable_ip+0xe/0x10 [<ffffffff81454d31>] _raw_spin_unlock_bh+0x34/0x39 [<ffffffffa0308eb8>] spin_unlock_bh.clone.0+0x15/0x17 [tipc] [<ffffffffa0308f47>] tipc_k_signal+0x8d/0xb1 [tipc] [<ffffffffa0308dd9>] tipc_core_start+0x8a/0xad [tipc] [<ffffffffa01b1087>] 0xffffffffa01b1087 [<ffffffff8100207d>] do_one_initcall+0x72/0x18a [<ffffffff810872fb>] sys_init_module+0xd8/0x23a [<ffffffff81009b42>] system_call_fastpath+0x16/0x1b -> #0 (ref_table_lock){+.-...}: [<ffffffff8107b3b2>] __lock_acquire+0xa11/0xd0f [<ffffffff8107b78c>] lock_acquire+0xdc/0x102 [<ffffffff81454836>] _raw_write_lock_bh+0x3b/0x6e [<ffffffffa0315148>] tipc_ref_discard+0x53/0xd4 [tipc] [<ffffffffa03141ee>] tipc_deleteport+0x40/0x119 [tipc] [<ffffffffa0316e35>] release+0xeb/0x137 [tipc] [<ffffffff8139dbf4>] sock_release+0x1f/0x6f [<ffffffff8139dc6b>] sock_close+0x27/0x2b [<ffffffff811116f6>] __fput+0x12a/0x1df [<ffffffff811117c5>] fput+0x1a/0x1c [<ffffffff8110e49b>] filp_close+0x68/0x72 [<ffffffff8110e552>] sys_close+0xad/0xe7 [<ffffffff81009b42>] system_call_fastpath+0x16/0x1b Finally decided I should fix this. Its a straightforward inversion, tipc_ref_acquire takes two locks in this order: ref_table_lock entry->lock while tipc_deleteport takes them in this order: entry->lock (via tipc_port_lock()) ref_table_lock (via tipc_ref_discard()) when the same entry is referenced, we get the above warning. The fix is equally straightforward. Theres no real relation between the entry->lock and the ref_table_lock (they just are needed at the same time), so move the entry->lock aquisition in tipc_ref_acquire down, after we unlock ref_table_lock (this is safe since the ref_table_lock guards changes to the reference table, and we've already claimed a slot there. I've tested the below fix and confirmed that it clears up the lockdep issue Signed-off-by: Neil Horman <nhorman@tuxdriver.com> CC: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-14tipc: Eliminate improper use of TIPC_OK error codeAllan Stephens
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>
2008-05-12tipc: Fix race condition when creating socket or native portAllan Stephens
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>
2008-04-16[TIPC]: Cleanup of TIPC reference table codeAllan Stephens
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[TIPC]: Optimized initialization of TIPC reference tableAllan Stephens
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[TIPC]: Remove inlining of reference table locking routinesAllan Stephens
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>
2008-02-24tipc: fix integer as NULL pointer sparse warnings in tipcHarvey Harrison
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>
2007-02-10[NET] TIPC: Fix whitespace errors.YOSHIFUJI Hideaki
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-21[TIPC]: Removing useless castsPanagiotis Issaris
Removing useless casts Signed-off-by: Panagiotis Issaris <takis@issaris.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-27[PATCH] spin/rwlock init cleanupsIngo Molnar
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>
2006-06-25[TIPC]: First phase of assert() cleanupAllan Stephens
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>
2006-03-20[TIPC]: Fix simple sparse warningsSam Ravnborg
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>
2006-01-18[TIPC] Avoid polluting the global namespacePer Liden
This patch adds a tipc_ prefix to all externally visible symbols. Signed-off-by: Per Liden <per.liden@ericsson.com>
2006-01-12[TIPC] More updates of file headersPer Liden
Updated copyright notice to include the year the file was actually created. Information about file creation dates was extracted from the files in the old CVS repository at tipc.sourceforge.net. Signed-off-by: Per Liden <per.liden@nospam.ericsson.com>
2006-01-12[TIPC] Update of file headersPer Liden
The copyright statements from different parts of Ericsson have been merged into one. Signed-off-by: Per Liden <per.liden@nospam.ericsson.com>
2006-01-12[TIPC] License header updatePer Liden
The license header in each file now more clearly state that this code is licensed under a dual BSD/GPL. Before this was only evident if you looked at the MODULE_LICENSE line in core.c. Signed-off-by: Per Liden <per.liden@nospam.ericsson.com>
2006-01-12[TIPC] Initial mergePer Liden
TIPC (Transparent Inter Process Communication) is a protocol designed for intra cluster communication. For more information see http://tipc.sourceforge.net Signed-off-by: Per Liden <per.liden@nospam.ericsson.com>