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2009-09-08mv_xor: implement a private tx_listDan Williams
Drop mv_xor's use of tx_list from struct dma_async_tx_descriptor in preparation for removal of this field. Cc: Saeed Bishara <saeed@marvell.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08ioat: implement a private tx_listDan Williams
Drop ioatdma's use of tx_list from struct dma_async_tx_descriptor in preparation for removal of this field. Cc: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08iop-adma: implement a private tx_listDan Williams
Drop iop-adma's use of tx_list from struct dma_async_tx_descriptor in preparation for removal of this field. Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08fsldma: implement a private tx_listDan Williams
Drop fsldma's use of tx_list from struct dma_async_tx_descriptor in preparation for removal of this field. Cc: Li Yang <leoli@freescale.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08dw_dmac: implement a private tx_listDan Williams
Drop dw_dmac's use of tx_list from struct dma_async_tx_descriptor in preparation for removal of this field. Cc: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08Merge branch 'ioat' into dmaengineDan Williams
2009-09-08net_dma: poll for a descriptor after allocation failureDan Williams
Handle descriptor allocation failures by polling for a descriptor. The driver will force forward progress when polled. In the best case this polling interval will be the time it takes for one dma memcpy transaction to complete. In the worst case, channel hang, we will need to wait 100ms for the cleanup watchdog to fire (ioatdma driver). Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08ioat2,3: dynamically resize descriptor ringDan Williams
Increment the allocation order of the descriptor ring every time we run out of descriptors up to a maximum of allocation order specified by the module parameter 'ioat_max_alloc_order'. After each idle period decrement the allocation order to a minimum order of 'ioat_ring_alloc_order' (i.e. the default ring size, tunable as a module parameter). Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08ioat: switch watchdog and reset handler from workqueue to timerDan Williams
In order to support dynamic resizing of the descriptor ring or polling for a descriptor in the presence of a hung channel the reset handler needs to make progress while in a non-preemptible context. The current workqueue implementation precludes polling channel reset completion under spin_lock(). This conversion also allows us to return to opportunistic cleanup in the ioat2 case as the timer implementation guarantees at least one cleanup after every descriptor is submitted. This means the worst case completion latency becomes the timer frequency (for exceptional circumstances), but with the benefit of avoiding busy waiting when the lock is contended. Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08ioat1: trim ioat_dma_desc_swDan Williams
Save 4 bytes per software descriptor by transmitting tx_cnt in an unused portion of the hardware descriptor. Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08ioat: ___devinit annotate the initialization pathsDan Williams
Mark all single use initialization routines with __devinit. Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08ioat: preserve chanctrl bits when re-arming interruptsDan Williams
The register write in ioat_dma_cleanup_tasklet is unfortunate in two ways: 1/ It clears the extra 'enable' bits that we set at alloc_chan_resources time 2/ It gives the impression that it disables interrupts when it is in fact re-arming interrupts [ Impact: fix, persist the value of the chanctrl register when re-arming ] Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08ioat: ignore reserved bits for chancnt and xfercapDan Williams
Don't trust that the reserved bits are always zero, also sanity check the returned value. Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08ioat: cleanup completion status readsDan Williams
The cleanup path makes an effort to only perform an atomic read of the 64-bit completion address. However in the 32-bit case it does not matter if we read the upper-32 and lower-32 non-atomically because the upper-32 will always be zero. Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08ioat: add some dev_dbg() callsDan Williams
Provide some output for debugging the driver. Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08ioat1: kill unused unmap parametersDan Williams
The unified ioat1/ioat2 ioat_dma_unmap() implementation derives the source and dest addresses from the unmap descriptor. There is no longer a need to track this information in struct ioat_desc_sw. Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08ioat2,3: convert to a true ring bufferDan Williams
Replace the current linked list munged into a ring with a native ring buffer implementation. The benefit of this approach is reduced overhead as many parameters can be derived from ring position with simple pointer comparisons and descriptor allocation/freeing becomes just a manipulation of head/tail pointers. It requires a contiguous allocation for the software descriptor information. Since this arrangement is significantly different from the ioat1 chain, move ioat2,3 support into its own file and header. Common routines are exported from driver/dma/ioat/dma.[ch]. Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08ioat: prepare the code for ioat[12]_dma_chan splitDan Williams
Prepare the code for the conversion of the ioat2 linked-list-ring into a native ring buffer. After this conversion ioat2 channels will share less of the ioat1 infrastructure, but there will still be places where sharing is possible. struct ioat_chan_common is created to house the channel attributes that will remain common between ioat1 and ioat2 channels. For every routine that accesses both common and hardware specific fields the old unified 'ioat_chan' pointer is split into an 'ioat' and 'chan' pointer. Where 'chan' references common fields and 'ioat' the hardware/version specific. [ Impact: pure structure member movement/variable renames, no logic changes ] Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08ioat: fix self test interruptsDan Williams
If a callback is to be attached to a descriptor the channel needs to know at ->prep time so it can set the interrupt enable bit. This is in preparation for moving descriptor ioat2 descriptor preparation from ->submit to ->prep. Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08ioat1: move descriptor allocation from submit to prepDan Williams
The async_tx api assumes that after a successful ->prep a subsequent ->submit will not fail due to a lack of resources. This also fixes a bug in the allocation failure case. Previously the descriptors allocated prior to the allocation failure would not be returned to the free list. Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08ioat: define descriptor control bit-fieldDan Williams
This cleans up a mess of and'ing and or'ing bit definitions, and allows simple assignments from the specified dma_ctrl_flags parameter. Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08ioat: fix type mismatch for ->dmacountDan Williams
->dmacount tracks the sequence number of active descriptors. It is written to the DMACOUNT register to update the channel's view of pending descriptors in the chain. The register is 16-bits so ->dmacount should be unsigned and 16-bit as well. Also modify ->desccount to maintain alignment. This was never a problem in practice because we never compared dmacount values, but this is a bug waiting to happen. Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08ioat: split ioat_dma_probe into core/version-specific routinesDan Williams
Towards the removal of ioatdma_device.version split the initialization path into distinct versions. This conversion: 1/ moves version specific probe code to version specific routines 2/ removes the need for ioat_device 3/ turns off the ioat1 msi quirk if the device is reinitialized for intx Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08ioat: kill function prototype ifdef guardsDan Williams
The only .c files that utilize these protected prototypes depend on CONFIG_INTEL_IOATDMA=y, so there is no value gained in providing empty prototypes. [ Impact: pure cleanup ] Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08ioat: cleanup some long deref chains and 80 column collisionsDan Williams
* reduce device->common. to dma-> in ioat_dma_{probe,remove,selftest} * ioat_lookup_chan_by_index to ioat_chan_by_index * multi-line function definitions * ioat_desc_sw.async_tx to ioat_desc_sw.txd * desc->txd. to tx-> in cleanup routine Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08ioat: convert ioat_probe to pcim/devmDan Williams
The driver currently duplicates much of what these routines offer, so just use the common code. For example ->irq_mode tracks what interrupt mode was initialized, which duplicates the ->msix_enabled and ->msi_enabled handling in pcim_release. This also adds a check to the return value of dma_async_device_register, which can fail. Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08ioat: move definitions to dma.hDan Williams
Some of these defines may be useful outside of dma.c and the header is private so there are no namespace pollution concerns. Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08Merge commit 'v2.6.31-rc1' into dmaengineDan Williams
2009-07-28ioat: move to drivers/dma/ioat/Dan Williams
When first created the ioat driver was the only inhabitant of drivers/dma/. Now, it is the only multi-file (more than a .c and a .h) driver in the directory. Moving it to an ioat/ subdirectory allows the naming convention to be cleaned up, and allows for future splitting of the source files by hardware version (v1, v2, and v3). Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-07-22dmaengine: at_hdmac: add DMA slave transfersNicolas Ferre
This patch for at_hdmac adds the slave transfers capability to the Atmel DMA controller available on some AT91 SOCs. This allow peripheral to memory and memory to peripheral transfers with hardware handshaking. Slave structure for controller specific information is passed through channel private data. This at_dma_slave structure is defined in at_hdmac.h header file and relative hardware definition are moved to this file from at_hdmac_regs.h. Doing this we allow the channel configuration from platform definition code. This work is intensively based on dw_dmac and several slave implementations. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-07-22dmaengine: at_hdmac: new driver for the Atmel AHB DMA ControllerNicolas Ferre
This AHB DMA Controller (aka HDMA or DMAC on AT91 systems) is availlable on at91sam9rl chip. It will be used on other products in the future. This first release covers only the memory-to-memory tranfer type. This is the only tranfer type supported by this chip. On other products, it will be used also for peripheral DMA transfer (slave API support to come). I used dmatest client without problem in different configurations to test it. Full documentation for this controller can be found in the SAM9RL datasheet: http://www.atmel.com/dyn/products/product_card.asp?part_id=4243 Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-07-22dmaengine: dmatest: correct thread_count while using multiple thread per channelNicolas Ferre
It seems that thread_count is not properly calculated in dmatest. In fact the thread count number that is returned from dmatest_add_threads() is not correctly added to the thread_count and thus not properly printed. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-07-22dmaengine: dmatest: add a maximum number of test iterationsNicolas Ferre
The dmatest usually waits for the killing of its kthreads to stop running tests. This patch adds a parameter that sets a maximum number of test iterations. This feature is quite interesting for debugging when you set a lot of traces in your dmaengine controller driver. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-07-22drivers/dma: Remove unnecessary semicolonsJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-07-22drivers/dma/fsldma.c: Remove unnecessary semicolonsJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-07-01dmaengine: move HIGHMEM64G restriction to ASYNC_TX_DMADan Williams
On HIGHMEM64G systems dma_addr_t is known to be larger than (void *) which precludes async_xor from performing dma address conversions by reusing the input parameter address list. However, other parts of the dmaengine infrastructure do not suffer this constraint, so the HIGHMEM64G restriction can be down-levelled. Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-06-24Merge git://git.infradead.org/battery-2.6Linus Torvalds
* git://git.infradead.org/battery-2.6: da9030_battery: Fix race between event handler and monitor Add MAX17040 Fuel Gauge driver w1: ds2760_battery: add support for sleep mode feature w1: ds2760: add support for EEPROM read and write ds2760_battery: cleanups in ds2760_battery_probe()
2009-06-24Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: Staging: octeon-ethernet: Fix race freeing transmit buffers. Staging: octeon-ethernet: Convert to use net_device_ops. MIPS: Cavium: Add CPU hotplugging code. MIPS: SMP: Allow suspend and hibernation if CPU hotplug is available MIPS: Add arch generic CPU hotplug DMA: txx9dmac: use dma_unmap_single if DMA_COMPL_{SRC,DEST}_UNMAP_SINGLE set MIPS: Sibyte: Fix build error if CONFIG_SERIAL_SB1250_DUART is undefined. MIPS: MIPSsim: Fix build error if MSC01E_INT_BASE is undefined. MIPS: Hibernation: Remove SMP TLB and cacheflushing code. MIPS: Build fix - include <linux/smp.h> into all smp_processor_id() users. MIPS: bug.h Build fix - include <linux/compiler.h>.
2009-06-24Staging: octeon-ethernet: Fix race freeing transmit buffers.David Daney
The existing code had the following race: Thread-1 Thread-2 inc/read in_use inc/read in_use inc tx_free_list[qos].len inc tx_free_list[qos].len The actual in_use value was incremented twice, but thread-1 is going to free memory based on its stale value, and will free one too many times. The result is that memory is freed back to the kernel while its packet is still in the transmit buffer. If the memory is overwritten before it is transmitted, the hardware will put a valid checksum on it and send it out (just like it does with good packets). If by chance the TCP flags are clobbered but not the addresses or ports, the result can be a broken TCP stream. The fix is to track the number of freed packets in a single location (a Fetch-and-Add Unit register). That way it can never get out of sync with itself. We try to free up to MAX_SKB_TO_FREE (currently 10) buffers at a time. If fewer are available we adjust the free count with the difference. The action of claiming buffers to free is atomic so two threads cannot claim the same buffers. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-06-24Staging: octeon-ethernet: Convert to use net_device_ops.David Daney
Convert the driver to use net_device_ops as it is now mandatory. Also compensate for the removal of struct sk_buff's dst field. The changes are mostly mechanical, the content of ethernet-common.c was moved to ethernet.c and ethernet-common.{c,h} are removed. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-06-24DMA: txx9dmac: use dma_unmap_single if DMA_COMPL_{SRC,DEST}_UNMAP_SINGLE setAtsushi Nemoto
This patch does not change actual behaviour since dma_unmap_page is just an alias of dma_unmap_single on MIPS. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: Ralf Baechle <ralf@linux-mips.org> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-06-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dmLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm: (48 commits) dm mpath: change to be request based dm: disable interrupt when taking map_lock dm: do not set QUEUE_ORDERED_DRAIN if request based dm: enable request based option dm: prepare for request based option dm raid1: add userspace log dm: calculate queue limits during resume not load dm log: fix create_log_context to use logical_block_size of log device dm target:s introduce iterate devices fn dm table: establish queue limits by copying table limits dm table: replace struct io_restrictions with struct queue_limits dm table: validate device logical_block_size dm table: ensure targets are aligned to logical_block_size dm ioctl: support cookies for udev dm: sysfs add suspended attribute dm table: improve warning message when devices not freed before destruction dm mpath: add service time load balancer dm mpath: add queue length load balancer dm mpath: add start_io and nr_bytes to path selectors dm snapshot: use barrier when writing exception store ...
2009-06-24Merge branch 'for-upstream' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb * 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb: uwb: allow WLP to be used with IPv6. uwb: event_size should be signed
2009-06-24Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (72 commits) asus-laptop: remove EXPERIMENTAL dependency asus-laptop: use pr_fmt and pr_<level> eeepc-laptop: cpufv updates eeepc-laptop: sync eeepc-laptop with asus_acpi asus_acpi: Deprecate in favor of asus-laptop acpi4asus: update MAINTAINER and KConfig links asus-laptop: platform dev as parent for led and backlight eeepc-laptop: enable camera by default ACPI: Rename ACPI processor device bus ID acerhdf: Acer Aspire One fan control ACPI: video: DMI workaround broken Acer 7720 BIOS enabling display brightness ACPI: run ACPI device hot removal in kacpi_hotplug_wq ACPI: Add the reference count to avoid unloading ACPI video bus twice ACPI: DMI to disable Vista compatibility on some Sony laptops ACPI: fix a deadlock in hotplug case Show the physical device node of backlight class device. ACPI: pdc init related memory leak with physical CPU hotplug ACPI: pci_root: remove unused dev/fn information ACPI: pci_root: simplify list traversals ACPI: pci_root: use driver data rather than list lookup ...
2009-06-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: bnx2: Fix the behavior of ethtool when ONBOOT=no qla3xxx: Don't sleep while holding lock. qla3xxx: Give the PHY time to come out of reset. ipv4 routing: Ensure that route cache entries are usable and reclaimable with caching is off net: Move rx skb_orphan call to where needed ipv6: Use correct data types for ICMPv6 type and code net: let KS8842 driver depend on HAS_IOMEM can: let SJA1000 driver depend on HAS_IOMEM netxen: fix firmware init handshake netxen: fix build with without CONFIG_PM netfilter: xt_rateest: fix comparison with self netfilter: xt_quota: fix incomplete initialization netfilter: nf_log: fix direct userspace memory access in proc handler netfilter: fix some sparse endianess warnings netfilter: nf_conntrack: fix conntrack lookup race netfilter: nf_conntrack: fix confirmation race condition netfilter: nf_conntrack: death_by_timeout() fix
2009-06-24Remove low_latency flag setting from nozomi and mxser driversChuck Ebbert
The kernel oopses if this flag is set. [and neither driver should set it as they call tty_flip_buffer_push from IRQ paths so have always been buggy] Signed-off-by: Chuck Ebbert <cebbert@redhat.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-24tty: fix tty_port_block_til_ready waitingJiri Slaby
Since commit 3e3b5c087799e536871c8261b05bc28e4783c8da ("tty: use prepare/finish_wait"), tty_port_block_til_ready() is using prepare_to_wait()/finish_wait(). Those functions require that the wait_queue_t be initialised with .func=autoremove_wake_function, via DEFINE_WAIT(). But the conversion from DECLARE_WAITQUEUE() to DEFINE_WAIT() was not made, so this code will oops in finish_wait(). Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-24pci: use pci_ioremap_bar() in drivers/serialArjan van de Ven
Use the newly introduced pci_ioremap_bar() function in drivers/serial. pci_ioremap_bar() just takes a pci device and a bar number, with the goal of making it really hard to get wrong, while also having a central place to stick sanity checks. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-24synclink_gt: fix transmit race and timeoutPaul Fulghum
Fix race condition when adding transmit data to active DMA buffer ring that can cause transmit stall. Update transmit timeout when adding data to active DMA buffer ring. Base transmit timeout on amount of buffered data instead of using fixed value. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-24jsm: clean up "serial: jsm: correctly support 4 8 port boards"Andrew Morton
Remove unneeded casts. Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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