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2009-01-07SUNRPC: The sunrpc server code should not be used by out-of-tree modulesTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
2009-01-07svc: Clean up deferred requests on transport destructionTom Tucker
A race between svc_revisit and svc_delete_xprt can result in deferred requests holding references on a transport that can never be recovered because dead transports are not enqueued for subsequent processing. Check for XPT_DEAD in revisit to clean up completing deferrals on a dead transport and sweep a transport's deferred queue to do the same for queued but unprocessed deferrals. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
2009-01-07svc: Move kfree of deferral record to common codeTom Tucker
The rqstp structure has a pointer to a svc_deferred_req record that is allocated when requests are deferred. This record is common to all transports and can be freed in common code. Move the kfree of the rq_deferred to the common svc_xprt_release function. This also fixes a memory leak in the RDMA transport which does not kfree the dr structure in it's version of the xpo_release_rqst callback. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
2009-01-07Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (24 commits) trivial: chack -> check typo fix in main Makefile trivial: Add a space (and a comma) to a printk in 8250 driver trivial: Fix misspelling of "firmware" in docs for ncr53c8xx/sym53c8xx trivial: Fix misspelling of "firmware" in powerpc Makefile trivial: Fix misspelling of "firmware" in usb.c trivial: Fix misspelling of "firmware" in qla1280.c trivial: Fix misspelling of "firmware" in a100u2w.c trivial: Fix misspelling of "firmware" in megaraid.c trivial: Fix misspelling of "firmware" in ql4_mbx.c trivial: Fix misspelling of "firmware" in acpi_memhotplug.c trivial: Fix misspelling of "firmware" in ipw2100.c trivial: Fix misspelling of "firmware" in atmel.c trivial: Fix misspelled firmware in Kconfig trivial: fix an -> a typos in documentation and comments trivial: fix then -> than typos in comments and documentation trivial: update Jesper Juhl CREDITS entry with new email trivial: fix singal -> signal typo trivial: Fix incorrect use of "loose" in event.c trivial: printk: fix indentation of new_text_line declaration trivial: rtc-stk17ta8: fix sparse warning ...
2009-01-07wimax: Makefile, Kconfig and docbook linkage for the stackInaky Perez-Gonzalez
This patch provides Makefile and KConfig for the WiMAX stack, integrating them into the networking stack's Makefile, Kconfig and doc-book templates. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07wimax: debugfs controlsInaky Perez-Gonzalez
Expose knobs to control the stack's debug output. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07wimax: basic API: kernel/user messaging, rfkill and resetInaky Perez-Gonzalez
Implements the three basic operations provided by the stack's control interface to WiMAX devices: - Messaging channel between user space and driver/device This implements a direct communication channel between user space and the driver/device, by which free form messages can be sent back and forth. This is intended for device-specific features, vendor quirks, etc. - RF-kill framework integration Provide most of the RF-Kill integration for WiMAX drivers so that all device drivers have to do is after wimax_dev_add() is call wimax_report_rfkill_{hw,sw}() to update initial state and then every time it changes. Provides wimax_rfkill() for the kernel to call to set software RF-Kill status and/or query current hardware and software switch status. Exports wimax_rfkill() over generic netlink to user space. - Reset a WiMAX device Provides wimax_reset() for the kernel to reset a wimax device as needed and exports it over generic netlink to user space. This API is clearly limited, as it still provides no way to do the basic scan, connect and disconnect in a hardware independent way. The WiMAX case is more complex than WiFi due to the way networks are discovered and provisioned. The next developments are to add the basic operations so they can be offerent by different drivers. However, we'd like to get more vendors to jump in and provide feedback of how the user/kernel API/abstraction layer should be. The user space code for the i2400m, as of now, uses the messaging channel, but that will change as the API evolves. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07genetlink: export genl_unregister_mc_group()Inaky Perez-Gonzalez
Add an EXPORT_SYMBOL() to genl_unregister_mc_group(), to allow unregistering groups on the run. EXPORT_SYMBOL_GPL() is not used as the rest of the functions exported by this module (eg: genl_register_mc_group) are also not _GPL(). Cleanup is currently done when unregistering a family, but there is no way to unregister a single multicast group due to that function not being exported. Seems to be a mistake as it is documented as for external consumption. This is needed by the WiMAX stack to be able to cleanup unused mc groups. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07wimax: generic device management (registration, deregistration, lookup)Inaky Perez-Gonzalez
Implements the basic life cycles of a 'struct wimax_dev', some common generic netlink functionality for marshalling calls to user space, and the device state machine. For looking up net devices based on their generic netlink family IDs, use a low overhead method that optimizes for the case where most systems have a single WiMAX device, or at most, a very low number of WiMAX adaptors. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07wimax: debug macros and debug settings for the WiMAX stackInaky Perez-Gonzalez
This file contains a simple debug framework that is used in the stack; it allows the debug level to be controlled at compile-time (so the debug code is optimized out) and at run-time (for what wasn't compiled out). This is eventually going to be moved to use dynamic_printk(). Just need to find time to do it. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07wimax: internal API for the kernel space WiMAX stackInaky Perez-Gonzalez
This file contains declarations and definitions used by the different submodules of the stack. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: CRED: Fix regression in cap_capable() as shown up by sys_faccessat() [ver #3] Revert "CRED: Fix regression in cap_capable() as shown up by sys_faccessat() [ver #2]" SELinux: shrink sizeof av_inhert selinux_class_perm and context CRED: Fix regression in cap_capable() as shown up by sys_faccessat() [ver #2] keys: fix sparse warning by adding __user annotation to cast smack: Add support for unlabeled network hosts and networks selinux: Deprecate and schedule the removal of the the compat_net functionality netlabel: Update kernel configuration API
2009-01-07dsa: convert to net_device_ops (v2)Stephen Hemminger
Convert this driver to use net_device_ops Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-06Merge branch 'next' into for-linusJames Morris
2009-01-06can: omit unneeded skb_clone() callsOliver Hartkopp
The AF_CAN core delivered always cloned sk_buffs to the AF_CAN protocols, although this was _only_ needed by the can-raw protocol. With this (additionally documented) change, the AF_CAN core calls the callback functions of the registered AF_CAN protocols with the original (uncloned) sk_buff pointer and let's the can-raw protocol do the skb_clone() itself which omits all unneeded skb_clone() calls for other AF_CAN protocols. Signed-off-by: Oliver Hartkopp <oliver@hartkopp.net> Signed-off-by: Urs Thuermann <urs.thuermann@volkswagen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-06vlan: Add GRO interfacesHerbert Xu
This patch adds GRO interfaces for hardware-assisted VLAN reception. With this in place we're now at parity with LRO as far as the interface is concerned. That is, you can now take any LRO driver and convert it over to GRO. As the CB memory clashes with GRO's use of CB, I've removed it entirely by storing dev in skb->dev. This is OK because VLAN gets called first thing in netif_receive_skb and skb->dev is not used in between us calling netif_rx and netif_receive_skb getting called. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-06gro: Add internal interfaces for VLANHerbert Xu
Previously GRO's only entry point from the outside is through napi_gro_receive and napi_gro_frags. These interfaces are for device drivers. This patch rearranges things to provide a new set of interfaces for VLANs. These interfaces are for internal use only. The VLAN code itself can then provide a set of entry points for device drivers. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-06sch_teql: convert to net_device_opsStephen Hemminger
Convert this driver to net_device_ops. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-06s390: remove s390_root_dev_*()Mark McLoughlin
Replace s390_root_dev_register() with root_device_register() etc. [Includes fix from Cornelia Huck] Signed-off-by: Mark McLoughlin <markmc@redhat.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06wireless: convert wireless ioctl to net_device_opsStephen Hemminger
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-06dmaengine: kill struct dma_client and supporting infrastructureDan Williams
All users have been converted to either the general-purpose allocator, dma_find_channel, or dma_request_channel. Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-01-06dmaengine: replace dma_async_client_register with dmaengine_getDan Williams
Now that clients no longer need to be notified of channel arrival dma_async_client_register can simply increment the dmaengine_ref_count. Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-01-06net_dma: convert to dma_find_channelDan Williams
Use the general-purpose channel allocation provided by dmaengine. Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-01-06dmaengine: provide a common 'issue_pending_all' implementationDan Williams
async_tx and net_dma each have open-coded versions of issue_pending_all, so provide a common routine in dmaengine. The implementation needs to walk the global device list, so implement rcu to allow dma_issue_pending_all to run lockless. Clients protect themselves from channel removal events by holding a dmaengine reference. Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-01-06dmaengine: up-level reference counting to the module levelDan Williams
Simply, if a client wants any dmaengine channel then prevent all dmaengine modules from being removed. Once the clients are done re-enable module removal. Why?, beyond reducing complication: 1/ Tracking reference counts per-transaction in an efficient manner, as is currently done, requires a complicated scheme to avoid cache-line bouncing effects. 2/ Per-transaction ref-counting gives the false impression that a dma-driver can be gracefully removed ahead of its user (net, md, or dma-slave) 3/ None of the in-tree dma-drivers talk to hot pluggable hardware, but if such an engine were built one day we still would not need to notify clients of remove events. The driver can simply return NULL to a ->prep() request, something that is much easier for a client to handle. Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-01-06SUNRPC: Ensure the server closes sockets in a timely fashionTrond Myklebust
We want to ensure that connected sockets close down the connection when we set XPT_CLOSE, so that we don't keep it hanging while cleaning up all the stuff that is keeping a reference to the socket. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
2009-01-06sunrpc: add sv_maxconn field to svc_serv (try #3)Jeff Layton
svc_check_conn_limits() attempts to prevent denial of service attacks by having the service close old connections once it reaches a threshold. This threshold is based on the number of threads in the service: (serv->sv_nrthreads + 3) * 20 Once we reach this, we drop the oldest connections and a printk pops to warn the admin that they should increase the number of threads. Increasing the number of threads isn't an option however for services like lockd. We don't want to eliminate this check entirely for such services but we need some way to increase this limit. This patch adds a sv_maxconn field to the svc_serv struct. When it's set to 0, we use the current method to calculate the max number of connections. RPC services can then set this on an as-needed basis. Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: Neil Brown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
2009-01-06trivial: fix then -> than typos in comments and documentationFrederik Schwarzer
- (better, more, bigger ...) then -> (...) than Signed-off-by: Frederik Schwarzer <schwarzerf@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-01-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (44 commits) qlge: Fix sparse warnings for tx ring indexes. qlge: Fix sparse warning regarding rx buffer queues. qlge: Fix sparse endian warning in ql_hw_csum_setup(). qlge: Fix sparse endian warning for inbound packet control block flags. qlge: Fix sparse warnings for byte swapping in qlge_ethool.c myri10ge: print MAC and serial number on probe failure pkt_sched: cls_u32: Fix locking in u32_change() iucv: fix cpu hotplug af_iucv: Free iucv path/socket in path_pending callback af_iucv: avoid left over IUCV connections from failing connects af_iucv: New error return codes for connect() net/ehea: bitops work on unsigned longs Revert "net: Fix for initial link state in 2.6.28" tcp: Kill extraneous SPLICE_F_NONBLOCK checks. tcp: don't mask EOF and socket errors on nonblocking splice receive dccp: Integrate the TFRC library with DCCP dccp: Clean up ccid.c after integration of CCID plugins dccp: Lockless integration of CCID congestion-control plugins qeth: get rid of extra argument after printk to dev_* conversion qeth: No large send using EDDP for HiperSockets. ...
2009-01-06Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: inotify: fix type errors in interfaces fix breakage in reiserfs_new_inode() fix the treatment of jfs special inodes vfs: remove duplicate code in get_fs_type() add a vfs_fsync helper sys_execve and sys_uselib do not call into fsnotify zero i_uid/i_gid on inode allocation inode->i_op is never NULL ntfs: don't NULL i_op isofs check for NULL ->i_op in root directory is dead code affs: do not zero ->i_op kill suid bit only for regular files vfs: lseek(fd, 0, SEEK_CUR) race condition
2009-01-06pkt_sched: cls_u32: Fix locking in u32_change()Jarek Poplawski
New nodes are inserted in u32_change() under rtnl_lock() with wmb(), so without tcf_tree_lock() like in other classifiers (e.g. cls_fw). This isn't enough without rmb() on the read side, but on the other hand adding such barriers doesn't give any savings, so the lock is added instead. Reported-by: m0sia <m0sia@plotinka.ru> Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-06iucv: fix cpu hotplugHeiko Carstens
If the iucv module is compiled in/loaded but no user is registered cpu hot remove doesn't work. Reason for that is that the iucv cpu hotplug notifier on CPU_DOWN_PREPARE checks if the iucv_buffer_cpumask would be empty after the corresponding bit would be cleared. However the bit was never set since iucv wasn't enable. That causes all cpu hot unplug operations to fail in this scenario. To fix this use iucv_path_table as an indicator wether iucv is enabled or not. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-06af_iucv: Free iucv path/socket in path_pending callbackHendrik Brueckner
Free iucv path after iucv_path_sever() calls in iucv_callback_connreq() (path_pending() iucv callback). If iucv_path_accept() fails, free path and free/kill newly created socket. Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-06af_iucv: avoid left over IUCV connections from failing connectsUrsula Braun
For certain types of AFIUCV socket connect failures IUCV connections are left over. Add some cleanup-statements to avoid cluttered IUCV connections. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-06af_iucv: New error return codes for connect()Hendrik Brueckner
If the iucv_path_connect() call fails then return an error code that corresponds to the iucv_path_connect() failure condition; instead of returning -ECONNREFUSED for any failure. This helps to improve error handling for user space applications (e.g. inform the user that the z/VM guest is not authorized to connect to other guest virtual machines). The error return codes are based on those described in connect(2). Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-06Revert "net: Fix for initial link state in 2.6.28"David S. Miller
This reverts commit 22604c866889c4b2e12b73cbf1683bda1b72a313. We can't fix this issue in this way, because we now can try to take the dev_base_lock rwlock as a writer in software interrupt context and that is not allowed without major surgery elsewhere. This initial link state problem needs to be solved in some other way. Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-05zero i_uid/i_gid on inode allocationAl Viro
... and don't bother in callers. Don't bother with zeroing i_blocks, while we are at it - it's already been zeroed. i_mode is not worth the effort; it has no common default value. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-01-05tcp: Kill extraneous SPLICE_F_NONBLOCK checks.David S. Miller
In splice TCP receive, the SPLICE_F_NONBLOCK flag is used to compute the "timeo" value. So checking it again inside of the main receive loop to trigger -EAGAIN processing is entirely unnecessary. Noticed by Jarek P. and Lennert Buytenhek. Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-05tcp: don't mask EOF and socket errors on nonblocking splice receiveLennert Buytenhek
Currently, setting SPLICE_F_NONBLOCK on splice from a TCP socket results in masking of EOF (RDHUP) and error conditions on the socket by an -EAGAIN return. Move the NONBLOCK check in tcp_splice_read() to be after the EOF and error checks to fix this. Signed-off-by: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-05dccp: Integrate the TFRC library with DCCPGerrit Renker
This patch integrates the TFRC library, which is a dependency of CCID-3 (and CCID-4), with the new use of CCIDs in the DCCP module. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-05dccp: Clean up ccid.c after integration of CCID pluginsGerrit Renker
This patch cleans up after integrating the CCID modules and, in addition, * moves the if/else cases from ccid_delete() into ccid_hc_{tx,rx}_delete(); * removes the 'gfp' argument to ccid_new() - since it is always gfp_any(). Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-05dccp: Lockless integration of CCID congestion-control pluginsGerrit Renker
Based on Arnaldo's earlier patch, this patch integrates the standardised CCID congestion control plugins (CCID-2 and CCID-3) of DCCP with dccp.ko: * enables a faster connection path by eliminating the need to always go through the CCID registration lock; * updates the implementation to use only a single array whose size equals the number of configured CCIDs instead of the maximum (256); * since the CCIDs are now fixed array elements, synchronization is no longer needed, simplifying use and implementation. CCID-2 is suggested as minimum for a basic DCCP implementation (RFC 4340, 10); CCID-3 is a standards-track CCID supported by RFC 4342 and RFC 5348. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-05can: update can-bcm for hrtimer hardirq callbacksOliver Hartkopp
Since commit ca109491f612aab5c8152207631c0444f63da97f ("hrtimer: removing all ur callback modes") the hrtimer callbacks are processed only in hardirq context. This patch moves some functionality into tasklets to run in softirq context. Additionally some duplicated code was removed in bcm_rx_thr_flush() and an avoidable memcpy was removed from bcm_rx_handler(). Signed-off-by: Oliver Hartkopp <oliver@hartkopp.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-05DCB: fix kfree(skb)Roel Kluin
Use kfree_skb instead of kfree for struct sk_buff pointers. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-05ipv6: IPV6_PKTINFO relied userspace providing correct lengthIlpo Järvinen
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Reported-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-05net: Fix for initial link state in 2.6.28Michael Marineau
From: Michael Marineau <mike@marineau.org> Commit b47300168e770b60ab96c8924854c3b0eb4260eb "Do not fire linkwatch events until the device is registered." was made as a workaround for drivers that call netif_carrier_off before registering the device. Unfortunately this causes these drivers to incorrectly report their link status as IF_OPER_UNKNOWN which can falsely set the IFF_RUNNING flag when the interface is first brought up. This issues was previously pointed out[1] but was dismissed saying that IFF_RUNNING is not related to the link status. From my digging IFF_RUNNING, as reported to userspace, is based on the link state. It is set based on __LINK_STATE_START and IF_OPER_UP or IF_OPER_UNKNOWN. See [2], [3], and [4]. (Whether or not the kernel has IFF_RUNNING set in flags is not reported to user space so it may well be independent of the link, I don't know if and when it may get set.) The end result depends slightly depending on the driver. The the two I tested were e1000e and b44. With e1000e if the system is booted without a network cable attached the interface will falsely report RUNNING when it is brought up causing NetworkManager to attempt to start it and eventually time out. With b44 when the system is booted with a network cable attached and brought up with dhcpcd it will time out the first time. The attached patch that will still set the operstate variable correctly to IF_OPER_UP/DOWN/etc when linkwatch_fire_event is called but then return rather than skipping the linkwatch_fire_event call entirely as the previous fix did. (sorry it isn't inline, I don't have a patch friendly email client at the moment) Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-05net/rfkill/rfkill.c: fix unused rfkill_led_trigger() warningSimon Holm Thøgersen
commit 4dec9b807be757780ca3611a959ac22c28d292a7 ("rfkill: strip pointless notifier chain") removed the only user of rfkill_led_trigger() that was not guarded by #ifdef CONFIG_RFKILL_LEDS. Therefore, move rfkill_led_trigger() completely inside #ifdef CONFIG_RFKILL_LEDS and avoid the compile time warning: net/rfkill/rfkill.c:59: warning: 'rfkill_led_trigger' defined but not used Signed-off-by: Simon Holm Thøgersen <odie@cs.aau.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-05gro: Add page frag supportHerbert Xu
This patch allows GRO to merge page frags (skb_shinfo(skb)->frags) in one skb, rather than using the less efficient frag_list. It also adds a new interface, napi_gro_frags to allow drivers to inject page frags directly into the stack without allocating an skb. This is intended to be the GRO equivalent for LRO's lro_receive_frags interface. The existing GSO interface can already handle page frags with or without an appended frag_list so nothing needs to be changed there. The merging itself is rather simple. We store any new frag entries after the last existing entry, without checking whether the first new entry can be merged with the last existing entry. Making this check would actually be easy but since no existing driver can produce contiguous frags anyway it would just be mental masturbation. If the total number of entries would exceed the capacity of a single skb, we simply resort to using frag_list as we do now. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-05gro: Use gso_size to store MSSHerbert Xu
In order to allow GRO packets without frag_list at all, we need to store the MSS in the packet itself. The obvious place is gso_size. The only thing to watch out for is if the packet ends up not being GRO then we need to clear gso_size before pushing the packet into the stack. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-05ipv6: Fix sporadic sendmsg -EINVAL when sending to multicast groups.David S. Miller
Thanks to excellent diagnosis by Eduard Guzovsky. The core problem is that on a network with lots of active multicast traffic, the neighbour cache can fill up. If we try to allocate a new route and thus neighbour cache entry, the bog-standard GC attempt the neighbour layer does in ineffective because route entries hold a reference to the existing neighbour entries and GC can only liberate entries with no references. IPV4 already has a way to handle this, by doing a route cache GC in such situations (when neigh attach returns -ENOBUFS). So simply mimick this on the ipv6 side. Tested-by: Eduard Guzovsky <eguzovsky@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>