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2013-03-21net/mlx4_core: Fix wrong order of flow steering resources removalHadar Hen Zion1-1/+1
On the resource tracker cleanup flow, the DMFS rules must be deleted before we destroy the QPs, else the HW may attempt doing packet steering to non existent QPs. Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-21net/mlx4_core: Fix wrong mask applied on EQ numbers in the wrapperMoshe Lazer1-1/+1
Currently the mask is wrongly set in the MAP_EQ wrapper, fix that. Without the fix any EQ number above 511 is mapped to one below 511. Signed-off-by: Moshe Lazer <moshel@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-21net: ethernet: cpsw: fix erroneous condition in error checkLothar Waßmann1-1/+1
The error check in cpsw_probe_dt() has an '&&' where an '||' is meant to be. This causes a NULL pointer dereference when incomplet DT data is passed to the driver ('phy_id' property for cpsw_emac1 missing). Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-21lantiq_etop: use free_netdev(netdev) instead of kfree()Wei Yongjun1-1/+1
Freeing netdev without free_netdev() leads to net, tx leaks. And it may lead to dereferencing freed pointer. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20thermal: shorten too long mcast group nameMasatake YAMATO1-1/+1
The original name is too long. Signed-off-by: Masatake YAMATO <yamato@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20fec: Fix the build as moduleFabio Estevam1-0/+3
Since commit ff43da86c69 (NET: FEC: dynamtic check DMA desc buff type) the following build error happens when CONFIG_FEC=m ERROR: "fec_ptp_init" [drivers/net/ethernet/freescale/fec.ko] undefined! ERROR: "fec_ptp_ioctl" [drivers/net/ethernet/freescale/fec.ko] undefined! ERROR: "fec_ptp_start_cyclecounter" [drivers/net/ethernet/freescale/fec.ko] undefined! Fix it by exporting the required fec_ptp symbols. Reported-by: Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20net: fec: Define indexes as 'unsigned int'Fabio Estevam1-3/+3
Fix the following warnings that happen when building with W=1 option: drivers/net/ethernet/freescale/fec.c: In function 'fec_enet_free_buffers': drivers/net/ethernet/freescale/fec.c:1337:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] drivers/net/ethernet/freescale/fec.c: In function 'fec_enet_alloc_buffers': drivers/net/ethernet/freescale/fec.c:1361:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] drivers/net/ethernet/freescale/fec.c: In function 'fec_enet_init': drivers/net/ethernet/freescale/fec.c:1631:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20net/irda: add missing error path release_sock callKees Cook1-2/+4
This makes sure that release_sock is called for all error conditions in irda_getsockopt. Signed-off-by: Kees Cook <keescook@chromium.org> Reported-by: Brad Spengler <spender@grsecurity.net> Cc: stable@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20lpc_eth: fix error return code in lpc_eth_drv_probe()Wei Yongjun1-1/+2
Fix to return a negative error code from the error handling case instead of 0, as returned elsewhere in this function. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20sh_eth: check TSU registers ioremap() errorSergei Shtylyov1-0/+5
One must check the result of ioremap() -- in this case it prevents potential kernel oops when initializing TSU registers further on... Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20sh_eth: fix bitbang memory leakSergei Shtylyov2-0/+6
sh_mdio_init() allocates pointer to 'struct bb_info' but only stores it locally, so that sh_mdio_release() can't free it on driver unload. Add the pointer to 'struct bb_info' to 'struct sh_eth_private', so that sh_mdio_init() can save 'bitbang' variable for sh_mdio_release() to be able to free it later... Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20ipconfig: Fix newline handling in log message.Martin Fuzzey1-1/+2
When using ipconfig the logs currently look like: Single name server: [ 3.467270] IP-Config: Complete: [ 3.470613] device=eth0, hwaddr=ac:de:48:00:00:01, ipaddr=172.16.42.2, mask=255.255.255.0, gw=172.16.42.1 [ 3.480670] host=infigo-1, domain=, nis-domain=(none) [ 3.486166] bootserver=172.16.42.1, rootserver=172.16.42.1, rootpath= [ 3.492910] nameserver0=172.16.42.1[ 3.496853] ALSA device list: Three name servers: [ 3.496949] IP-Config: Complete: [ 3.500293] device=eth0, hwaddr=ac:de:48:00:00:01, ipaddr=172.16.42.2, mask=255.255.255.0, gw=172.16.42.1 [ 3.510367] host=infigo-1, domain=, nis-domain=(none) [ 3.515864] bootserver=172.16.42.1, rootserver=172.16.42.1, rootpath= [ 3.522635] nameserver0=172.16.42.1, nameserver1=172.16.42.100 [ 3.529149] , nameserver2=172.16.42.200 Fix newline handling for these cases Signed-off-by: Martin Fuzzey <mfuzzey@parkeon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20flow_keys: include thoff into flow_keys for later usageDaniel Borkmann2-0/+3
In skb_flow_dissect(), we perform a dissection of a skbuff. Since we're doing the work here anyway, also store thoff for a later usage, e.g. in the BPF filter. Suggested-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20l2tp: unhash l2tp sessions on delete, not on freeTom Parkin3-50/+38
If we postpone unhashing of l2tp sessions until the structure is freed, we risk: 1. further packets arriving and getting queued while the pseudowire is being closed down 2. the recv path hitting "scheduling while atomic" errors in the case that recv drops the last reference to a session and calls l2tp_session_free while in atomic context As such, l2tp sessions should be unhashed from l2tp_core data structures early in the teardown process prior to calling pseudowire close. For pseudowires like l2tp_ppp which have multiple shutdown codepaths, provide an unhash hook. Signed-off-by: Tom Parkin <tparkin@katalix.com> Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20l2tp: avoid deadlock in l2tp stats updateTom Parkin5-147/+93
l2tp's u64_stats writers were incorrectly synchronised, making it possible to deadlock a 64bit machine running a 32bit kernel simply by sending the l2tp code netlink commands while passing data through l2tp sessions. Previous discussion on netdev determined that alternative solutions such as spinlock writer synchronisation or per-cpu data would bring unjustified overhead, given that most users interested in high volume traffic will likely be running 64bit kernels on 64bit hardware. As such, this patch replaces l2tp's use of u64_stats with atomic_long_t, thereby avoiding the deadlock. Ref: http://marc.info/?l=linux-netdev&m=134029167910731&w=2 http://marc.info/?l=linux-netdev&m=134079868111131&w=2 Signed-off-by: Tom Parkin <tparkin@katalix.com> Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20l2tp: push all ppp pseudowire shutdown through .release handlerTom Parkin1-43/+10
If userspace deletes a ppp pseudowire using the netlink API, either by directly deleting the session or by deleting the tunnel that contains the session, we need to tear down the corresponding pppox channel. Rather than trying to manage two pppox unbind codepaths, switch the netlink and l2tp_core session_close handlers to close via. the l2tp_ppp socket .release handler. Signed-off-by: Tom Parkin <tparkin@katalix.com> Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20l2tp: purge session reorder queue on deleteTom Parkin1-0/+4
Add calls to l2tp_session_queue_purge as a part of l2tp_tunnel_closeall and l2tp_session_delete. Pseudowire implementations which are deleted only via. l2tp_core l2tp_session_delete calls can dispense with their own code for flushing the reorder queue. Signed-off-by: Tom Parkin <tparkin@katalix.com> Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20l2tp: add session reorder queue purge function to coreTom Parkin2-0/+18
If an l2tp session is deleted, it is necessary to delete skbs in-flight on the session's reorder queue before taking it down. Rather than having each pseudowire implementation reaching into the l2tp_session struct to handle this itself, provide a function in l2tp_core to purge the session queue. Signed-off-by: Tom Parkin <tparkin@katalix.com> Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20l2tp: don't BUG_ON sk_socket being NULLTom Parkin1-8/+10
It is valid for an existing struct sock object to have a NULL sk_socket pointer, so don't BUG_ON in l2tp_tunnel_del_work if that should occur. Signed-off-by: Tom Parkin <tparkin@katalix.com> Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20l2tp: take a reference for kernel sockets in l2tp_tunnel_sock_lookupTom Parkin1-0/+2
When looking up the tunnel socket in struct l2tp_tunnel, hold a reference whether the socket was created by the kernel or by userspace. Signed-off-by: Tom Parkin <tparkin@katalix.com> Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20l2tp: close sessions before initiating tunnel deleteTom Parkin1-0/+1
When a user deletes a tunnel using netlink, all the sessions in the tunnel should also be deleted. Since running sessions will pin the tunnel socket with the references they hold, have the l2tp_tunnel_delete close all sessions in a tunnel before finally closing the tunnel socket. Signed-off-by: Tom Parkin <tparkin@katalix.com> Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20l2tp: close sessions in ip socket destroy callbackTom Parkin2-0/+13
l2tp_core hooks UDP's .destroy handler to gain advance warning of a tunnel socket being closed from userspace. We need to do the same thing for IP-encapsulation sockets. Signed-off-by: Tom Parkin <tparkin@katalix.com> Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20l2tp: export l2tp_tunnel_closeallTom Parkin2-2/+3
l2tp_core internally uses l2tp_tunnel_closeall to close all sessions in a tunnel when a UDP-encapsulation socket is destroyed. We need to do something similar for IP-encapsulation sockets. Export l2tp_tunnel_closeall as a GPL symbol to enable l2tp_ip and l2tp_ip6 to call it from their .destroy handlers. Signed-off-by: Tom Parkin <tparkin@katalix.com> Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20l2tp: add udp encap socket destroy handlerTom Parkin1-0/+14
L2TP sessions hold a reference to the tunnel socket to prevent it going away while sessions are still active. However, since tunnel destruction is handled by the sock sk_destruct callback there is a catch-22: a tunnel with sessions cannot be deleted since each session holds a reference to the tunnel socket. If userspace closes a managed tunnel socket, or dies, the tunnel will persist and it will be neccessary to individually delete the sessions using netlink commands. This is ugly. To prevent this occuring, this patch leverages the udp encapsulation socket destroy callback to gain early notification when the tunnel socket is closed. This allows us to safely close the sessions running in the tunnel, dropping the tunnel socket references in the process. The tunnel socket is then destroyed as normal, and the tunnel resources deallocated in sk_destruct. While we're at it, ensure that l2tp_tunnel_closeall correctly drops session references to allow the sessions to be deleted rather than leaking. Signed-off-by: Tom Parkin <tparkin@katalix.com> Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20udp: add encap_destroy callbackTom Parkin3-0/+16
Users of udp encapsulation currently have an encap_rcv callback which they can use to hook into the udp receive path. In situations where a encapsulation user allocates resources associated with a udp encap socket, it may be convenient to be able to also hook the proto .destroy operation. For example, if an encap user holds a reference to the udp socket, the destroy hook might be used to relinquish this reference. This patch adds a socket destroy hook into udp, which is set and enabled in the same way as the existing encap_rcv hook. Signed-off-by: Tom Parkin <tparkin@katalix.com> Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20genetlink: trigger BUG_ON if a group name is too longMasatake YAMATO1-0/+1
Trigger BUG_ON if a group name is longer than GENL_NAMSIZ. Signed-off-by: Masatake YAMATO <yamato@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20netfilter: remove unused "config IP_NF_QUEUE"Paul Bolle1-13/+0
Kconfig symbol IP_NF_QUEUE is unused since commit d16cf20e2f2f13411eece7f7fb72c17d141c4a84 ("netfilter: remove ip_queue support"). Let's remove it too. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-03-19PCI: Use ROM images from firmware only if no other ROM source availableMatthew Garrett1-20/+35
Mantas Mikulėnas reported that his graphics hardware failed to initialise after commit f9a37be0f02a ("x86: Use PCI setup data"). The aim of this commit was to ensure that ROM images were available on some Apple systems that don't expose the GPU ROM via any other source. In this case, UEFI appears to have provided a broken ROM image that we were using even though there was a perfectly valid ROM available via other sources. The simplest way to handle this seems to be to just re-order pci_map_rom() and leave any firmare-supplied ROM to last. Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com> Tested-by: Mantas Mikulėnas <grawity@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-19sparc: remove unused "config BITS"Paul Bolle1-6/+0
sparc's asm/module.h got removed in commit 786d35d45cc40b2a51a18f73e14e135d47fdced7 ("Make most arch asm/module.h files use asm-generic/module.h"). That removed the only two uses of this Kconfig symbol. So we can remove its entry too. > >From arch/sparc/Makefile: > ifeq ($(CONFIG_SPARC32),y) > [...] > > [...] > export BITS := 32 > [...] > > else > [...] > > [...] > export BITS := 64 > [...] > > So $(BITS) is set depending on whether CONFIG_SPARC32 is set or not. > Using $(BITS) in sparc's Makefiles is not using CONFIG_BITS. That > doesn't count as usage of "config BITS". Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-19sparc: delete "if !ULTRA_HAS_POPULATION_COUNT"Paul Bolle1-1/+1
Commit 2d78d4beb64eb07d50665432867971c481192ebf ("[PATCH] bitops: sparc64: use generic bitops") made the default of GENERIC_HWEIGHT depend on !ULTRA_HAS_POPULATION_COUNT. But since there's no Kconfig symbol with that name, this always evaluates to true. Delete this dependency. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-19arm64: Kconfig.debug: Remove unused CONFIG_DEBUG_ERRORSPaul Bolle2-12/+0
The Kconfig entry for DEBUG_ERRORS is a verbatim copy of the former arm entry for that symbol. It got removed in v2.6.39 because it wasn't actually used anywhere. There are still no users of DEBUG_ERRORS so remove this entry too. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> [catalin.marinas@arm.com: removed option from defconfig] Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-03-19arm64: Do not select GENERIC_HARDIRQS_NO_DEPRECATEDPaul Bolle1-1/+0
Config option GENERIC_HARDIRQS_NO_DEPRECATED was removed in commit 78c89825649a9a5ed526c507603196f467d781a5 ("genirq: Remove the now obsolete config options and select statements"), but the select was accidentally reintroduced in commit 8c2c3df31e3b87cb5348e48776c366ebd1dc5a7a ("arm64: Build infrastructure"). Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-03-19inet: limit length of fragment queue hash table bucket listsHannes Frederic Sowa5-16/+44
This patch introduces a constant limit of the fragment queue hash table bucket list lengths. Currently the limit 128 is choosen somewhat arbitrary and just ensures that we can fill up the fragment cache with empty packets up to the default ip_frag_high_thresh limits. It should just protect from list iteration eating considerable amounts of cpu. If we reach the maximum length in one hash bucket a warning is printed. This is implemented on the caller side of inet_frag_find to distinguish between the different users of inet_fragment.c. I dropped the out of memory warning in the ipv4 fragment lookup path, because we already get a warning by the slab allocator. Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Jesper Dangaard Brouer <jbrouer@redhat.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-19qeth: Fix scatter-gather regressionFrank Blaschka3-8/+42
This patch fixes a scatter-gather regression introduced with commit 5640f768 net: use a per task frag allocator Now the qeth driver can cope with bigger framents and split a fragment in sub framents if required. Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-19qeth: Fix invalid router settings handlingStefan Raspl2-6/+13
Give a bad return code when specifying a router setting that is either invalid or not support on the respective device type. In addition, fall back the previous setting instead of silently switching back to 'no routing'. Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com> Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-19qeth: delay feature traceStefan Raspl1-1/+1
Delay tracing of the card features until the optional commands have been enabled. Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com> Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-19ipvs: remove extra rcu lockJulian Anastasov1-2/+0
In 3.7 we added code that uses ipv4_update_pmtu but after commit c5ae7d4192 (ipv4: must use rcu protection while calling fib_lookup) the RCU lock is not needed. Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2013-03-19ipvs: add backup_only flag to avoid loopsJulian Anastasov4-4/+34
Dmitry Akindinov is reporting for a problem where SYNs are looping between the master and backup server when the backup server is used as real server in DR mode and has IPVS rules to function as director. Even when the backup function is enabled we continue to forward traffic and schedule new connections when the current master is using the backup server as real server. While this is not a problem for NAT, for DR and TUN method the backup server can not determine if a request comes from client or from director. To avoid such loops add new sysctl flag backup_only. It can be needed for DR/TUN setups that do not need backup and director function at the same time. When the backup function is enabled we stop any forwarding and pass the traffic to the local stack (real server mode). The flag disables the director function when the backup function is enabled. For setups that enable backup function for some virtual services and director function for other virtual services there should be another more complex solution to support DR/TUN mode, may be to assign per-virtual service syncid value, so that we can differentiate the requests. Reported-by: Dmitry Akindinov <dimak@stalker.com> Tested-by: German Myzovsky <lawyer@sipnet.ru> Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2013-03-18sgy-cts1000: Remove __dev* attributesBen Collins1-3/+3
Somehow the driver snuck in with these still in it. Signed-off-by: Ben Collins <ben.c@servergy.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-19ipvs: fix sctp chunk length orderJulian Anastasov1-7/+9
Fix wrong but non-fatal access to chunk length. sch->length should be in network order, next chunk should be aligned to 4 bytes. Problem noticed in sparse output. Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2013-03-18hwmon: (lm75) Fix tcn75 prefixJean Delvare1-1/+1
The TCN75 has its own prefix for a long time now. Signed-off-by: Jean Delvare <khali@linux-fr.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net>
2013-03-18hwmon: (lm75.h) Update header inclusionJean Delvare1-1/+1
File lm75.h used to include <linux/hwmon.h> for SENSORS_LIMIT() but this function is gone by now. Instead we call clamp_val() so we should include <linux/kernel.h>, where this function is declared. Signed-off-by: Jean Delvare <khali@linux-fr.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net>
2013-03-18MAINTAINERS: Remove Mark M. HoffmanJean Delvare2-15/+10
Mark M. Hoffman stopped working on the Linux kernel several years ago, so he should no longer be listed as a driver maintainer. I'm not even sure if his e-mail address still works. I can take over 3 drivers he was responsible for, the 4th one will fall down to the subsystem maintainer. Also give Mark credit for all the good work he did. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Cc: Wolfram Sang <wolfram@the-dreams.de>
2013-03-18rtlwifi: usb: add missing freeing of skbuffJussi Kivilinna1-0/+1
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: stable@vger.kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-03-18mwifiex: cancel cmd timer and free curr_cmd in shutdown processBing Zhao1-0/+8
curr_cmd points to the command that is in processing or waiting for its command response from firmware. If the function shutdown happens to occur at this time we should cancel the cmd timer and put the command back to free queue. Cc: <stable@vger.kernel.org> # 3.8 Tested-by: Marco Cesarano <marco@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-03-18mwifiex: skip pending commands after function shutdownBing Zhao1-3/+14
During rmmod mwifiex_sdio processing FUNC_SHUTDOWN command is sent to firmware. Firmware expcets only FUNC_INIT once WLAN function is shut down. Any command pending in the command queue should be ignored and freed. Cc: <stable@vger.kernel.org> # 3.8 Tested-by: Daniel Drake <dsd@laptop.org> Tested-by: Marco Cesarano <marco@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-03-18mwifiex: fix race when queuing commandsAmitkumar Karwar4-17/+10
Running the following script repeatedly on XO-4 with SD8787 produces command timeout and system lockup. insmod mwifiex_sdio.ko sleep 1 ifconfig eth0 up iwlist eth0 scan & sleep 0.5 rmmod mwifiex_sdio mwifiex_send_cmd_async() is called for sync as well as async commands. (mwifiex_send_cmd_sync() internally calls it for sync command.) "adapter->cmd_queued" gets filled inside mwifiex_send_cmd_async() routine for both types of commands. But it is used only for sync commands in mwifiex_wait_queue_complete(). This could lead to a race when two threads try to queue a sync command with another sync/async command simultaneously. Get rid of global variable and pass command node as a parameter to mwifiex_wait_queue_complete() to fix the problem. Cc: <stable@vger.kernel.org> # 3.8 Reported-by: Daniel Drake <dsd@laptop.org> Tested-by: Daniel Drake <dsd@laptop.org> Tested-by: Marco Cesarano <marco@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-03-18ath9k: limit tx path hang check to normal data queuesFelix Fietkau1-13/+13
The beacon and multicast-buffer queues are managed by the beacon tasklet, and the generic tx path hang check does not help in any way here. Running it on those queues anyway can introduce some race conditions leading to unnecessary chip resets. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-03-18ath9k_hw: revert chainmask to user configuration after calibrationFelix Fietkau1-0/+4
The commit 'ath9k_hw: fix calibration issues on chainmask that don't include chain 0' changed the hardware chainmask to the chip chainmask for the duration of the calibration, but the revert to user configuration in the reset path runs too early. That causes some issues with limiting the number of antennas (including spurious failure in hardware-generated packets). Fix this by reverting the chainmask after the essential parts of the calibration that need the workaround, and before NF calibration is run. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Reported-by: Wojciech Dubowik <Wojciech.Dubowik@neratec.com> Tested-by: Wojciech Dubowik <Wojciech.Dubowik@neratec.com> Cc: stable@vger.kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-03-18iwl3945: fix length of dma buffersStanislaw Gruszka1-10/+12
commit bdb084b22d8aee66c87af5e9c36bd6cf7f3bccfd Author: Stanislaw Gruszka <sgruszka@redhat.com> Date: Wed Feb 13 15:49:08 2013 +0100 iwlegacy: more checks for dma mapping errors broke il3945_tx_skb() dma buffer length settings, what results on firmware errors like showed below and make 3945 device non usable. iwl3945 0000:02:00.0: Microcode SW error detected. Restarting 0x82000008. iwl3945 0000:02:00.0: Loaded firmware version: 15.32.2.9 iwl3945 0000:02:00.0: Start IWL Error Log Dump: iwl3945 0000:02:00.0: Status: 0x000202E4, count: 1 iwl3945 0000:02:00.0: Desc Time asrtPC blink2 ilink1 nmiPC Line iwl3945 0000:02:00.0: SYSASSERT (0x5) 0000208934 0x008B6 0x0035E 0x00320 0x00000 267 iwl3945 0000:02:00.0: Error Reply type 0x00000001 cmd Reported-by: Zdenek Kabelac <zkabelac@redhat.com> Reported-by: Krzysztof Kolasa <kkolasa@winsoft.pl> Reported-by: Pedro Francisco <pedrogfrancisco@gmail.com> Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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