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2014-03-27carl9170: Remove casts of pointer to same typeJoe Perches
Casting a pointer to a pointer of the same type is pointless, so remove these unnecessary casts. Done via coccinelle script: $ cat typecast_2.cocci @@ type T; T *foo; @@ - (T *)foo + foo Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-27rtlwifi: Remove addressof casts to same typeJoe Perches
Using addressof then casting to the original type is pointless, so remove these unnecessary casts. Done via coccinelle script: $ cat typecast.cocci @@ type T; T foo; @@ - (T *)&foo + &foo Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-27rtl8180: rationalize TX queuesAndrea Merello
On currently supported HW there are four TX queues (three for normal packets and one for beacons). The driver uses just one TX queue, and declare to mac80211 to support just one queue, but it allocates coherent memory for all queues. Furthermore the TX is code is written assumimg four queues exists, and even if we decide to enable more queues in future, its mapping rule to mac80211 is fixed. This means we have memory waste on rtl8180/rtl8185, and we have also not enough flexibility to add support for boards (rtl8187se) that will use more queues. This patch changes things in order to allocate coherent memory only for the queues effectively used and it make it possible to specify how to map hardware queues on mac80211 queues, that will be used by rtl8187se code as soon it will be merged. Note: even if the beacon queue is currently unused, this should change, so I kept it. Signed-off-by: Andrea Merello <andrea.merello@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-27rtl8180: fix DMA register are written two timesAndrea Merello
Hw DMA registers are written in rtl8180_init_hw function. They are also written again just after calling rtl8180_init_hw. There is no point in doing this twice. Remove those redundant register writes from rtl8180_start. Signed-off-by: Andrea Merello <andrea.merello@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-27bcma: gpio: register 32 GPIOs on BCM5357Rafał Miłecki
Some Broadcom boards have more GPIOs available. For example Linksys E3200 home router is based on SoC id 0x5357, package 0x0A and uses GPIO 23 to reset internal USB WiFi (gpio23=wombo_reset). Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-27Merge branch 'for-upstream' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next
2014-03-27x86, hyperv: Bypass the timer_irq_works() checkJason Wang
This patch bypass the timer_irq_works() check for hyperv guest since: - It was guaranteed to work. - timer_irq_works() may fail sometime due to the lpj calibration were inaccurate in a hyperv guest or a buggy host. In the future, we should get the tsc frequency from hypervisor and use preset lpj instead. [ hpa: I would prefer to not defer things to "the future" in the future... ] Cc: K. Y. Srinivasan <kys@microsoft.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: <stable@vger.kernel.org> Acked-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Link: http://lkml.kernel.org/r/1393558229-14755-1-git-send-email-jasowang@redhat.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-03-27KVM: Specify byte order for KVM_EXIT_MMIOChristoffer Dall
The KVM API documentation is not clear about the semantics of the data field on the mmio struct on the kvm_run struct. This has become problematic when supporting ARM guests on big-endian host systems with guests of both endianness types, because it is unclear how the data should be exported to user space. This should not break with existing implementations as all supported existing implementations of known user space applications (QEMU and kvmtools for virtio) only support default endianness of the architectures on the host side. Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: Alexander Graf <agraf@suse.de> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-03-27virtio-net: correct error handling of virtqueue_kick()Jason Wang
Current error handling of virtqueue_kick() was wrong in two places: - The skb were freed immediately when virtqueue_kick() fail during xmit. This may lead double free since the skb was not detached from the virtqueue. - try_fill_recv() returns false when virtqueue_kick() fail. This will lead unnecessary rescheduling of refill work. Actually, it's safe to just ignore the kick failure in those two places. So this patch fixes this by partially revert commit 67975901183799af8e93ec60e322f9e2a1940b9b. Fixes 67975901183799af8e93ec60e322f9e2a1940b9b (virtio_net: verify if virtqueue_kick() succeeded). Cc: Heinz Graalfs <graalfs@linux.vnet.ibm.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27Merge branch 'tipc-next'David S. Miller
Ying Xue says: ==================== tipc: clean up bearer and node layer This is another commit series which aims at facilitating future changes to the locking policy around nodes, links and bearers. Currently, the tipc routing hierarchy comprises the structures 'node', 'link' and 'bearer'. The whole hierarchy is protected by a big read/write lock (tipc_net_lock), to ensure that nothing is added or removed while any of these structures is being accessed. Obviously the locking policy makes node, link and bearer components closely bound together so that their relationship becomes extremely complex. In the worst case, such locking policy not only has a negative influence on performance, but also it's prone to lead to deadlock occasionally. In order to decouple the complex relationship between bearer and node as well as link, the locking policy is adjusted as follows: - Bearer level RTNL lock is used on update side, and RCU is used on read side. Meanwhile, all bearer instances including broadcast bearer are saved into bearer_list array. - Node and link level All node instances are saved into two tipc_node_list and node_htable lists. The two lists are protected by node_list_lock on write side, and they are guarded with RCU lock on read side. All members in node structure including link instances are protected by node spin lock. - The relationship between bearer and node When link accesses bearer, it first needs to find the bearer with its bearer identity from the bearer_list array. When bearer accesses node, it can iterate the node_htable hash list with the node address to find the corresponding node. In the new locking policy, every component has its private locking solution and the relationship between bearer and node is very simple, that is, they can find each other with node address or bearer identity from node_htable hash list or bearer_list array. But, prior to these changes, we need to do some necessary cleanup and code consolidation. This is what we do with this commit series. In a later series we will replace net_lock with RTNL as well as RCU lock to deploy the new locking policy. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27tipc: use node list lock to protect tipc_num_links variableYing Xue
Without properly implicit or explicit read memory barrier, it's unsafe to read an atomic variable with atomic_read() from another thread which is different with the thread of changing the atomic variable with atomic_inc() or atomic_dec(). So a stale tipc_num_links may be got with atomic_read() in tipc_node_get_links(). If the tipc_num_links variable type is converted from atomic to unsigned integer and node list lock is used to protect it, the issue would be avoided. Signed-off-by: Ying Xue <ying.xue@windriver.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27tipc: use node_list_lock to protect tipc_num_nodes variableYing Xue
As tipc_node_list is protected by rcu read lock on read side, it's unnecessary to hold node_list_lock to protect tipc_node_list in tipc_node_get_links(). Instead, node_list_lock should just protects tipc_num_nodes in the function. Signed-off-by: Ying Xue <ying.xue@windriver.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27tipc: tipc: convert node list and node hlist to RCU listsYing Xue
Convert tipc_node_list list and node_htable hash list to RCU lists. On read side, the two lists are protected with RCU read lock, and on update side, node_list_lock is applied to them. Signed-off-by: Ying Xue <ying.xue@windriver.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27tipc: rename node create lock to protect node list and hlistYing Xue
When a node is created, tipc_net_lock read lock is first held and then node_create_lock is grabbed in order to prevent the same node from being created and inserted into both node list and hlist twice. But when we query node from the two node lists, we only hold tipc_net_lock read lock without grabbing node_create_lock. Obviously this locking policy is unable to guarantee that the two node lists are always synchronized especially when the operation of changing and accessing them occurs in different contexts like currently doing. Therefore, rename node_create_lock to node_list_lock to protect the two node lists, that is, whenever node is inserted into them or node is queried from them, the node_list_lock should be always held. As a result, tipc_net_lock read lock becomes redundant and then can be removed from the node query functions. Signed-off-by: Ying Xue <ying.xue@windriver.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27tipc: make broadcast bearer store in bearer_list arrayYing Xue
Now unicast bearer is dynamically allocated and placed into its identity specified slot of bearer_list array. When we search bearer_list array with a bearer identity, the corresponding bearer instance can be found. But broadcast bearer is statically allocated and it is not located in the bearer_list array yet. So we decide to enlarge bearer_list array into MAX_BEARERS + 1 slots, and its last slot stores the broadcast bearer so that the broadcast bearer can be found from bearer_list array with MAX_BEARERS as index. The change will help us reduce the complex relationship between bearer and link in the future. Signed-off-by: Ying Xue <ying.xue@windriver.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27tipc: remove active flag from tipc_bearer structureYing Xue
After the allocation of tipc_bearer structure instance is converted from statical way to dynamical way, we identify whether a certain tipc_bearer structure pointer is valid by checking whether the pointer is NULL or not. So the active flag in tipc_bearer structure becomes redundant. Signed-off-by: Ying Xue <ying.xue@windriver.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27tipc: convert tipc_bearers array to pointer listYing Xue
As part of the effort to introduce RCU protection for the bearer list, we first need to change it to a list of pointers. Signed-off-by: Ying Xue <ying.xue@windriver.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27tipc: acquire necessary locks in named_cluster_distribute routineYing Xue
The 'tipc_node_list' is guarded by tipc_net_lock and 'links' array defined in 'tipc_node' structure is protected by node lock as well. Without acquiring the two locks in named_cluster_distribute() a fatal oops may happen in case that a destroyed link might be got and then accessed. Therefore, above mentioned two locks must be held in named_cluster_distribute() to prevent the issue from happening accidentally. As 'links' array in node struct must be protected by node lock, we have to move the code of selecting an active link from tipc_link_xmit() to named_cluster_distribute() and then call __tipc_link_xmit() with the selected link to deliver name messages. Signed-off-by: Ying Xue <ying.xue@windriver.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27tipc: obsolete the remote management featureYing Xue
Due to the lacking of any credential, it's allowed to accept commands requested from remote nodes to query the local node status, which is prone to involve potential security risks. Instead, if we login to a remote node with ssh command, this approach is not only more safe than the remote management feature, but also it can give us more permissions like changing the remote node configuration. So it's reasonable for us to obsolete the remote management feature now. Signed-off-by: Ying Xue <ying.xue@windriver.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27tipc: remove unnecessary checking for node objectYing Xue
tipc_node_create routine doesn't need to check whether a node object specified with a node address exists or not because its caller(ie, tipc_disc_recv_msg routine) has checked this before calling it. Signed-off-by: Ying Xue <ying.xue@windriver.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27Merge branch 'sxgbe'David S. Miller
Byungho An says: ==================== This is 14th posting for SAMSUNG SXGBE driver. Changes since v1: - changed name of driver to SXGbE as per Ben's comment - squashed Joe's neatening for many stuff in original patches Changes since v2: - updated and split binding document as per Mark's comment - clean up codes as per Joe's comment - removed unused fields and clean up codes as per Francois's comment - removed module parameters as per Dave's comment - moved driver directory to samsung/sxgbe/ Changes since v3: - fixed Missing a blank line after declarations as per Dave's comment - clean up codes as per Joe's comment - removed reference of net_device.{irq, base_addr} as per Francois's comment Changes since v4: - updated binding document and DT related function as per Mark's comment Changes since v5: - updated binding document and DT related function as per Florian's comment - fixed typo and shortened code as per Joe's comment Changes since v6: - updated TSO related functions as per Rayagond's comment - updated binding document as per Mark's comment - removed WoL patch from this patch set Changes since v7: - updated TSO related functions as per Rayagond's comment Changes since v8: - removed select and depends statement from vendor sub-section as per Dave's comment Changes since v9: - removed adv-add-map, force-sf-dma-modei and force-thresh-dma-mode from binding documnet as per Mark's comment Changes since v10: - clean up codes as per Francois's comment Changes since v11: - clean up mdio_read/write codes as per Francois's comment - changed irq acquisition error path as per Francois's comment - updated mdio and platform related codes as per Tomasz'comment - clean up dma related codes as per Vince's comment Changes since v12: - fixed typo Changes since v13: - clean up error path codes for irqs as per Francois's comment - removed unsupported functions for ehttoolirq as per Ben's comment ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27vfs: Allocate anon_inode_inode in anon_inode_init()Jan Kara
Currently we allocated anon_inode_inode in anon_inodefs_mount. This is somewhat fragile as if that function ever gets called again, it will overwrite anon_inode_inode pointer. So move the initialization of anon_inode_inode to anon_inode_init(). Signed-off-by: Jan Kara <jack@suse.cz> [ Further simplified on suggestion from Dave Jones ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-03-27spi: omap-uwire: add missing iounmapNishanth Menon
This fixes the following coccicheck warning: linux-2.6/drivers/spi/spi-omap-uwire.c:485:2-8: ERROR: missing iounmap; ioremap on line 471 and execution via conditional on line 481 Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-03-27[SCSI] sd: Quiesce mode sense error messagesMartin K. Petersen
Messages about discovered disk properties are only printed once unless they are found to have changed. Errors encountered during mode sense, however, are printed every time we revalidate. Quiesce mode sense errors so they are only printed during the first scan. [jejb: checkpatch fixes] Bugzilla: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=733565 Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-27[SCSI] add support for per-host cmd poolsChristoph Hellwig
This allows drivers to specify the size of their per-command private data in the host template and then get extra memory allocated for each command instead of needing another allocation in ->queuecommand. With the current SCSI code that already does multiple allocations for each command this probably doesn't make a big performance impact, but it allows to clean up the drivers, and prepare them for using the blk-mq infrastructure where the common allocation will make a difference. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-27[SCSI] simplify command allocation and freeing a bitChristoph Hellwig
Just have one level of alloc/free functions that take a host instead of two levels for the allocation and different calling conventions for the free. [fengguang.wu@intel.com: docbook problems spotted, now fixed] Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-27[SCSI] megaraid: simplify internal command handlingChristoph Hellwig
We don't use the passed in scsi command for anything, so just add a adapter- wide internal status to go along with the internal scb that is used unter int_mtx to pass back the return value and get rid of all the complexities and abuse of the scsi_cmnd structure. This gets rid of the only user of scsi_allocate_command/scsi_free_command, which can now be removed. [jejb: checkpatch fixes] Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Adam Radford <aradford@gmail.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-27[SCSI] ses: Use vpd information from scsi_deviceHannes Reinecke
The scsi_device now has VPD page83 information attached, so there is no need to query it again. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-27[SCSI] Add EVPD page 0x83 and 0x80 to sysfsHannes Reinecke
EVPD page 0x83 is used to uniquely identify the device. So instead of having each and every program issue a separate SG_IO call to retrieve this information it does make far more sense to display it in sysfs. Some older devices (most notably tapes) will only report reliable information in page 0x80 (Unit Serial Number). So export this in the sysfs attribute 'vpd_pg80'. [jejb: checkpatch fix] [hare: attach after transport configure] [fengguang.wu@intel.com: spotted problems with the original now fixed] Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-27[SCSI] Return VPD page length in scsi_vpd_inquiry()Hannes Reinecke
We should be returning the number of bytes of the requested VPD page in scsi_vpd_inquiry. This makes it easier for the caller to verify the required space. [jejb: fix up mm warning spotted by Sergey] Tested-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-27ata: fix Marvell SATA driver dependenciesBartlomiej Zolnierkiewicz
Make sata_mv host driver depend on PCI || ARCH_DOVE || ARCH_KIRKWOOD || ARCH_MV78XX0 || ARCH_MVEBU || ARCH_ORION5X config options as Marvell SATA support covers both Marvell PCI devices and Marvell Dove, Kirkwood, MV78xx0, Armada 370/XP and Orion5x SoCs (for non-PCI devices the driver to work requires suitable device tree node or platform device to be defined). Additionally allow the driver build if COMPILE_TEST config option is set. Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Gregory Clement <gregory.clement@free-electrons.com> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2014-03-27spi: clps711x: Convert to use master->max_speed_hzAxel Lin
Set highest transfer speed to master->max_speed_hz and then we can remove hw->max_speed. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-03-27spi: clps711x: Enable driver compilation with COMPILE_TESTAxel Lin
This helps increasing build testing coverage. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-03-27KVM: vmx: fix MPX detectionPaolo Bonzini
kvm_x86_ops is still NULL at this point. Since kvm_init_msr_list cannot fail, it is safe to initialize it before the call. Fixes: 93c4adc7afedf9b0ec190066d45b6d67db5270da Reported-by: Fengguang Wu <fengguang.wu@intel.com> Tested-by: Jet Chen <jet.chen@intel.com> Cc: kvm@vger.kernel.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-03-27regmap: mmio: Add support for 1/2/8 bytes wide register address.Xiubo Li
Since regmap core and mmio have already support for 1/2/8 bytes wide values, so adds support for 1/2/8 bytes wide registers address. Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-03-27regmap: mmio: add regmap_mmio_{regsize, count}_check.Xiubo Li
Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-03-27net/core: Use RCU_INIT_POINTER(x, NULL) in netpoll.cMonam Agarwal
This patch replaces rcu_assign_pointer(x, NULL) with RCU_INIT_POINTER(x, NULL) The rcu_assign_pointer() ensures that the initialization of a structure is carried out before storing a pointer to that structure. And in the case of the NULL pointer, there is no structure to initialize. So, rcu_assign_pointer(p, NULL) can be safely converted to RCU_INIT_POINTER(p, NULL) Signed-off-by: Monam Agarwal <monamagarwal123@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27net/bridge: Use RCU_INIT_POINTER(x, NULL) in br_vlan.cMonam Agarwal
This patch replaces rcu_assign_pointer(x, NULL) with RCU_INIT_POINTER(x, NULL) The rcu_assign_pointer() ensures that the initialization of a structure is carried out before storing a pointer to that structure. And in the case of the NULL pointer, there is no structure to initialize. So, rcu_assign_pointer(p, NULL) can be safely converted to RCU_INIT_POINTER(p, NULL) Signed-off-by: Monam Agarwal <monamagarwal123@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27drivers/net: Use RCU_INIT_POINTER(x, NULL) in tun.cMonam Agarwal
This patch replaces rcu_assign_pointer(x, NULL) with RCU_INIT_POINTER(x, NULL) The rcu_assign_pointer() ensures that the initialization of a structure is carried out before storing a pointer to that structure. And in the case of the NULL pointer, there is no structure to initialize. So, rcu_assign_pointer(p, NULL) can be safely converted to RCU_INIT_POINTER(p, NULL) Signed-off-by: Monam Agarwal <monamagarwal123@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27drivers/net: Use RCU_INIT_POINTER(x, NULL) in bonding/bond_options.cMonam Agarwal
This patch replaces rcu_assign_pointer(x, NULL) with RCU_INIT_POINTER(x, NULL) The rcu_assign_pointer() ensures that the initialization of a structure is carried out before storing a pointer to that structure. And in the case of the NULL pointer, there is no structure to initialize. So, rcu_assign_pointer(p, NULL) can be safely converted to RCU_INIT_POINTER(p, NULL) Signed-off-by: Monam Agarwal <monamagarwal123@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27drm/nouveau: fail runtime pm properly.Dave Airlie
If we were on a non-optimus device, we'd return -EINVAL, this would lead to the over engineered runtime pm system to go into an error state, subsequent get_sync's would fail, so we'd never be able to open the device again. (like really get_sync shouldn't fail if the device isn't powered down). Signed-off-by: Dave Airlie <airlied@redhat.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2014-03-27drm/udl: take reference to device struct for dma-bufsDave Airlie
this stops the device from being deleted before all the dma-bufs on it are freed, this fixes an oops when you unplug a udl device while it has imported a buffer from another device. Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-03-26MIPS: JZ4740: Don't select HAVE_PWMJingoo Han
The HAVE_PWM symbol is only for legacy platforms that provide the PWM API without using the generic framework. The jz4740 platform uses the generic PWM framework, after the commit "f6b8a57 pwm: Add Ingenic JZ4740 support". Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/6525/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-03-26MIPS: Restore init.h usage to arch/mips/ar7/time.cPaul Gortmaker
Commit 0046be10e0c502705fc74d91408eba13a73bc201 ("mips: delete non-required instances of include <linux/init.h>") inadvertently removed an include that was actually correct. Restore it. Note that it gets init.h implicitly anyway, so this is largely a cosmetic fixup; no build regressions were caused by this. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/6416/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-03-26MIPS: BCM47XX: Add Belkin F7Dxxxx board detectionCody P Schafer
Add a few Belkin F7Dxxxx entries, with F7D4401 sourced from online documentation and the "F7D7302" being observed. F7D3301, F7D3302, and F7D4302 are reasonable guesses which are unlikely to cause mis-detection. Signed-off-by: Cody P Schafer <devel@codyps.com> Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Cc: linux-mips@linux-mips.org Cc: zajec5@gmail.com Cc: Cody P Schafer <devel@codyps.com> Patchwork: https://patchwork.linux-mips.org/patch/6594/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-03-26MIPS: BCM47XX: Add detection and GPIO config for Siemens SE505v2Hauke Mehrtens
This adds board detection for the Siemens SE505v2 and the led gpio configuration. This board does not have any buttons. This is based on OpenWrt broadcom-diag and Manuel Munz's nvram dump. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Cc: linux-mips@linux-mips.org Cc: zajec5@gmail.com Patchwork: https://patchwork.linux-mips.org/patch/6593/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-03-26MIPS: BCM47XX: Add button and led configuration for some Linksys devicesHauke Mehrtens
This adds led and button GPIO configuration for Linksys wrt54g3gv2, wrt54gsv1 and wrtsl54gs. This is based on OpenWrt broadcom-diag code. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Cc: linux-mips@linux-mips.org Cc: zajec5@gmail.com Patchwork: https://patchwork.linux-mips.org/patch/6592/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-03-26MIPS: BCM47XX: Detect some more Linksys devicesHauke Mehrtens
The Linksys WRT54G/GS/GL family uses the same boardtype numbers, and the same gpio configuration. The boardtype numbers are changing with the hardware versions, but these hardware numbers are different or each model. Detect them all as one device, this also worked in OpenWrt. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Cc: linux-mips@linux-mips.org Cc: zajec5@gmail.com Patchwork: https://patchwork.linux-mips.org/patch/6591/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-03-26MIPS: cpu-probe: Add support for probing M5150 coresLeonid Yegoshin
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com> Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/6597/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-03-26MIPS: Add support for the M5150 processorLeonid Yegoshin
The M5150 core is a 32-bit MIPS RISC which implements the MIPS Architecture Release-5 in a 5-stage pipeline. In addition, it includes the MIPS Architecture Virtualization Module that enables virtualization of operating systems, which provides a scalable, trusted, and secure execution environment. Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com> Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/6596/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>