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2007-02-26[PARISC] parisc-agp: Fix thinko const-ifyingKyle McMartin
Can't really blame davej for mucking this up... static-ify it while we're at it, which would have prevented this... Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-26Merge branch 'upstream-linus' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev: (51 commits) [libata] bump versions [libata] Trim trailing whitespace. [libata] sata_mv: Fix 50xx irq mask [libata] sata_mv: don't touch reserved bits in EDMA config register libata: Use new id_to_dma_mode function to tidy reporting in more drivers (minimally tested) pata_pcmcia: Fix oops in 2.6.21-rc1 Add id_to_dma_mode function for printing DMA modes sata_promise: simplify port setup sata_promise: fix 20619 new EH merge error [libata] ACPI: remove needless ->qc_issue hook existence test sata_vsc: refactor vsc_sata_interrupt and hook up error handling sata_sil: ignore and clear spurious IRQs while executing commands by polling sata_mv: fix pci_enable_msi() error handling pata_amd: fix an obvious bug in cable detection [libata] ata_piix: remove duplicate PCI IDs sata_nv: complain on spurious completion notifiers libata: test major version in ata_id_is_sata() sata_nv: kill old private BMDMA helper functions libata: fix remaining ap->id ahci: consider SDB FIS containing spurious NCQ completions HSM violation (regenerated) ...
2007-02-26Revert "[CPUFREQ] constify cpufreq_driver where possible."Linus Torvalds
This reverts commit aeeddc1435c37fa3fc844f31d39c185b08de4158, which was half-baked and broken. It just resulted in compile errors, since cpufreq_register_driver() still changes the 'driver_data' by setting bits in the flags field. So claiming it is 'const' _really_ doesn't work. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-26Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreqLinus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] constify some data tables. [CPUFREQ] constify cpufreq_driver where possible. {rd,wr}msr_on_cpu SMP=n optimization [CPUFREQ] cpufreq_ondemand.c: don't use _WORK_NAR rdmsr_on_cpu, wrmsr_on_cpu [CPUFREQ] Revert default on deprecated config X86_SPEEDSTEP_CENTRINO_ACPI
2007-02-26Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] CLPS7500 doesn't have IO ports [ARM] Fix more apm-emulation.h [ARM] 4234/1: Introduce get_irqnr_preamble and arch_ret_to_user for ns9xxx. [ARM] 4233/1: nand/s3c2410.c: warning fix [ARM] 4226/1: initial .data and .bss mappings of XIP kernel should be TEXT_OFFSET [ARM] 4224/2: allow XIP kernel to boot again [ARM] 4232/1: AT91: Generic GPIO bug [ARM] 4231/1: AT91: Merge and typo fixes. [ARM] 4229/1: S3C2410: Add MACH_QT2410 to s3c2410_defconfig [ARM] 4228/2: S3C24XX: update s3c2410_defconfig for 2.6.21-rc1
2007-02-26Merge branch 'for-linus' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband: IPoIB: Correct debugging output when path record lookup fails RDMA/cxgb3: Stop the EP Timer on BAD CLOSE RDMA/cxgb3: cleanups RDMA/cma: Remove unused node_guid from cma_device structure IB/cm: Remove ca_guid from cm_device structure RDMA/cma: Request reversible paths only IB/core: Set hop limit in ib_init_ah_from_wc correctly IB/uverbs: Return correct error for invalid PD in register MR IPoIB: Remove unused local_rate tracking IPoIB/cm: Improve small message bandwidth IB/mthca: Make 2 functions static
2007-02-26[PATCH] Fix oops in pata_pcmciaAlan
The change to the devres layer re-orders the execution of cleanup functions and in turn causes the pcmcia layer to oops as it zaps a pointer now needed later on. We simply leave the pointer alone. Signed-off-by: Alan Cox <alan@redhat.com> Acked-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-26[PATCH] Make hvc_console.c compile on non-powerpc: Remove NO_IRQRusty Russell
Paulus preferred this over #defining NO_IRQ in the file, since that's 0 for powerpc anyway. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-26IPoIB: Correct debugging output when path record lookup failsRoland Dreier
If path_rec_completion() is passed a non-NULL path record pointer along with an unsuccessful status value, the tracing code incorrectly prints the (invalid) DLID from the path record rather than the more interesting status code. The actual logic of the function correctly uses the path record only if the status indicates a successful lookup. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-02-26[PATCH] Fix build-failure in drivers/video/s3fb.cOndrej Zajicek
Toralf Förster pointed out that drivers/video/s3fb.c would fail to compile: > ... > CC drivers/video/s3fb.o > drivers/video/s3fb.c: In function `s3_pci_remove': > drivers/video/s3fb.c:1003: warning: unused variable `par' > drivers/video/s3fb.c: In function `s3fb_setup': > drivers/video/s3fb.c:1141: error: `mtrr' undeclared (first use in this function) > drivers/video/s3fb.c:1141: error: (Each undeclared identifier is reported only once > drivers/video/s3fb.c:1141: error: for each function it appears in.) > make[2]: *** [drivers/video/s3fb.o] Error 1 > make[1]: *** [drivers/video] Error 2 > make: *** [drivers] Error 2 Here is fix, it also fixes broken boot options. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-26Merge master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6: (78 commits) [PARISC] Use symbolic last syscall in __NR_Linux_syscalls [PARISC] Add missing statfs64 and fstatfs64 syscalls Revert "[PARISC] Optimize TLB flush on SMP systems" [PARISC] Compat signal fixes for 64-bit parisc [PARISC] Reorder syscalls to match unistd.h Revert "[PATCH] make kernel/signal.c:kill_proc_info() static" [PARISC] fix sys_rt_sigqueueinfo [PARISC] fix section mismatch warnings in harmony sound driver [PARISC] do not export get_register/set_register [PARISC] add ENTRY()/ENDPROC() and simplify assembly of HP/UX emulation code [PARISC] convert to use CONFIG_64BIT instead of __LP64__ [PARISC] use CONFIG_64BIT instead of __LP64__ [PARISC] add ASM_EXCEPTIONTABLE_ENTRY() macro [PARISC] more ENTRY(), ENDPROC(), END() conversions [PARISC] fix ENTRY() and ENDPROC() for 64bit-parisc [PARISC] Fixes /proc/cpuinfo cache output on B160L [PARISC] implement standard ENTRY(), END() and ENDPROC() [PARISC] kill ENTRY_SYS_CPUS [PARISC] clean up debugging printks in smp.c [PARISC] factor syscall_restart code out of do_signal ... Fix conflict in include/linux/sched.h due to kill_proc_info() being made publicly available to PARISC again.
2007-02-26[PATCH] drivers/mfd/sm501.c: Replace pci_module_init with pci_register_driverRichard Knutsson
Replace pci_module_init with pci_register_driver Signed-off-by: Richard Knutson <ricknu-0@student.ltu.se> Acked-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-26Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (25 commits) [XFRM]: Fix oops in xfrm4_dst_destroy() [XFRM_TUNNEL]: Reload header pointer after pskb_may_pull/pskb_expand_head [IPV4]: Use random32() in net/ipv4/multipath [BRIDGE]: eliminate workqueue for carrier check [BRIDGE]: get rid of miscdevice include [IPV6]: Fix __ipv6_addr_type() export in correct place. [IPV4] devinet: Register inetdev earlier. [IPV6] ADDRCONF: Register inet6_dev earlier. [IPV6] ADDRCONF: Manage prefix route corresponding to address manually added. [IPV6] IP6TUNNEL: Use update_pmtu() of dst on xmit. [IPV6] ADDRCONF: Statically link __ipv6_addr_type() for sunrpc subsystem. [IPV4]: Correct links in net/ipv4/Kconfig [SCTP]: Strike the transport before updating rto. [SCTP]: Fix connection hang/slowdown with PR-SCTP [TCP]: Fix MD5 signature pool locking. [TG3]: TSO workaround fixes. [AF_PACKET]: Remove unnecessary casts. [IPV6]: Adjust inet6_exit() cleanup sequence against inet6_init() [IPSEC]: More fix is needed for __xfrm6_bundle_create(). [IRDA] net/irda/: proper prototypes ...
2007-02-26Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC] uctrl: Check request_irq() return value. [SPARC64]: Update defconfig. [SPARC64] bbc_i2c: Fix kenvctrld eating %100 cpu. [SPARC64]: Fix arch_teardown_msi_irq(). [SPARC64]: virt_irq_free only needed when CONFIG_PCI_MSI [SPARC]: Remove the broken SUN_AURORA driver.
2007-02-26Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-ledsLinus Torvalds
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds: leds: Add support for Cobalt Server front LED leds: Add IPAQ h1940 LEDs support
2007-02-26[TG3]: TSO workaround fixes.Michael Chan
1. Add race condition check after netif_stop_queue(). tg3_tx() runs without netif_tx_lock and can race with tg3_start_xmit_dma_bug() -> tg3_tso_bug(). 2. Firmware TSO in 5703/5704/5705 also have the same TSO limitation, i.e. they cannot handle TSO headers bigger than 80 bytes. Rename TG3_FL2_HW_TSO_1_BUG to TG3_FL2_TSO_BUG and set this flag on these chips as well. 3. Update version to 3.74. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-26[Bluetooth] Make use of MODULE_FIRMWAREMarcel Holtmann
Some Bluetooth drivers need one or more binary firmware images. Export these image names via the MODULE_FIRMWARE tag. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2007-02-26Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: Revert "Driver core: let request_module() send a /sys/modules/kmod/-uevent" Driver core: fix error by cleanup up symlinks properly make kernel/kmod.c:kmod_mk static power management: fix struct layout and docs power management: no valid states w/o pm_ops Driver core: more fallout from class_device changes for pcmcia sysfs: move struct sysfs_dirent to private header driver core: refcounting fix Driver core: remove class_device_rename
2007-02-26Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6: USB: export autosuspend delay in sysfs sysfs: allow attributes to be added to groups USB: make autosuspend delay a module parameter USB: minor cleanups for sysfs.c USB: add a blacklist for devices that can't handle some things we throw at them. USB: refactor usb device matching and create usb_device_match USB: Wacom driver updates gadgetfs: Fixed bug in ep_aio_read_retry. USB: Use USB defines in usbmouse.c and usbkbd.c USB: add rationale on why usb descriptor structures have to be packed USB: ftdi_sio: Adding VID and PID for Tellstick UHCI: Eliminate asynchronous skeleton Queue Headers UHCI: Add macros for computing DMA values USB: Davicom DM9601 usbnet driver USB: asix.c - Add JVC-PRX1 ids usbmon: Remove erroneous __exit USB: add driver for iowarrior devices. USB: option: add a bunch of new device ids USB: option: remove duplicate device id table
2007-02-26Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] Fix port 0 mac address for mips mv6434x platforms [SERIAL] serial_txx9 driver update Revert "[PATCH] Generic ioremap_page_range: mips conversion" [MIPS] Cobalt: Rename "Colo" MTD partition to "firmware". [MIPS] SMP: Get smp_tune_scheduling to do something useful. [MIPS] Add basic SMARTMIPS ASE support
2007-02-26Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgartLinus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart: [AGPGART] Further constification. [AGPGART] Fix modular agpgart ia64 allmodconfig
2007-02-26[SPARC] uctrl: Check request_irq() return value.David S. Miller
Based upon a patch by Monakhov Dmitriy. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-26[SPARC64] bbc_i2c: Fix kenvctrld eating %100 cpu.David S. Miller
Based almost entirely upon a patch by Joerg Friedrich Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-26[SPARC]: Remove the broken SUN_AURORA driver.Adrian Bunk
The SUN_AURORA driver: - has been marked as BROKEN for more than two years and - is still marked as BROKEN. Drivers that had been marked as BROKEN for such a long time seem to be unlikely to be revived in the forseeable future. But if anyone wants to ever revive this driver, the code is still present in the older kernel releases. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-26[libata] bump versionsJeff Garzik
Bump versions based on changes submitted during 2.6.21 merge window. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-26[libata] Trim trailing whitespace.Jeff Garzik
No code changes. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-26[libata] sata_mv: Fix 50xx irq maskJeff Garzik
IRQ mask bits assumed a 60xx or newer generation chip, which is very wrong for the 50xx series. Luckily both generations shared the per-port interrupt mask bits, leaving only the "misc chip features" bits to be completely mismatched. Fix 50xx by ensuring we only program bits that exist. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-26[libata] sata_mv: don't touch reserved bits in EDMA config registerJeff Garzik
The code in mv_edma_cfg() reflected its 60xx origins, by doing things [slightly] incorrectly on the older 50xx and newer 6042/7042 chips. Clean up the EDMA configuration setup such that, each chip family carefully initializes its own EDMA setup. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-25libata: Use new id_to_dma_mode function to tidy reporting in more drivers ↵Alan
(minimally tested) Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-25pata_pcmcia: Fix oops in 2.6.21-rc1Alan
Manuel Lass reports: > This bug is also present in 2.6.21-rc1, and this patch > indeed fixes it. The change to the devres layer re-orders the execution of cleanup functions and in turn causes the pcmcia layer to oops as it zaps a pointer now needed later on. We simply leave the pointer alone. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-25Add id_to_dma_mode function for printing DMA modesAlan
Also export dev_disable as this is needed by drivers doing slave decode filtering, which will follow shortly Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-25sata_promise: simplify port setupMikael Pettersson
Each place in pdc_ata_init_one() that initialises a SATA port first calls pdc_ata_setup_port(), and then manually assigns the port's ->scr_addr. Simplify the code by extending pdc_ata_setup_port() to also handle scr_addr initialisation; for PATA ports we pass NULL as scr_addr. The initialisation of the PATA-only 20619 redundantly set up scr_addr for the ports. Remove this. Tested on 20619, 20575, and 20775 chips. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-25sata_promise: fix 20619 new EH merge errorMikael Pettersson
When I merged my 20619 new EH conversion with #libata-upstream I had to manually resolve a conflict, and inadvertently lost pdc_pata_ops' ->post_internal_cmd binding. Corrected by this patch. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-25[ARM] 4233/1: nand/s3c2410.c: warning fixArnaud Patard
Noticed while building a s3c2410 kernel : drivers/mtd/nand/s3c2410.c: In function 's3c2440_nand_calculate_ecc': drivers/mtd/nand/s3c2410.c:476: warning: format '%06x' expects type 'unsigned int', but argument 3 has type 'long unsigned int' This patch fixes it. Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-24[libata] ACPI: remove needless ->qc_issue hook existence testJeff Garzik
All drivers must implement this hook, otherwise ATA commands would go nowhere (and a lot of other oopsen would appear as well). Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-24sata_vsc: refactor vsc_sata_interrupt and hook up error handlingDan Williams
Separate sata_vsc interrupt handling into a normal (per-port) path and an error path with the addition of vsc_port_intr and vsc_error_intr respectively. The error path handles interrupt based hotplug events which requires the definition of vsc_freeze and vsc_thaw. Note: vsc_port_intr has a workaround for unexpected interrupts that occur during polled commands. This fixes a regression between 2.6.19 and 2.6.20. Changes in take2: * removed definition of invalid fis bit * let standard ata-error-handling handle the serror register * clear all unhandled interrupts * revert changes to vsc_intr_mask_update (vsc_thaw enables all interrupts) * use unlikely() for the pci-abort and not-our-interrupt cases in vsc_sata_interrupt Changes in take3: * Unify the "add" + "hook-up" patches into this single patch [htejun@gmail.com: clean up comments and suggestions] Cc: Jeremy Higdon <jeremy@sgi.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-24sata_sil: ignore and clear spurious IRQs while executing commands by pollingTejun Heo
sata_sil used to trigger HSM error if IRQ occurs during polling command. This didn't matter because polling wasn't used in sata_sil. However, as of 2.6.20, all IDENTIFYs are performed by polling and device detection sometimes fails due to spurious IRQ. This patch makes sata_sil ignore and clear spurious IRQ while executing commands by polling. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-24sata_mv: fix pci_enable_msi() error handlingTejun Heo
intx should be turned on when pci_enable_msi() fails not when it succeeds. Fix it. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-24pata_amd: fix an obvious bug in cable detectionTejun Heo
80c test mask is at bits 18 and 19 of EIDE Controller Configuration not 22 and 23. Fix it. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-23USB: export autosuspend delay in sysfsAlan Stern
This patch (as861) adds sysfs attributes to expose the autosuspend delay value for each USB device. If the user changes the delay from 0 (no autosuspend) to a positive value, an autosuspend is attempted. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23USB: make autosuspend delay a module parameterAlan Stern
This patch (as859) makes the default USB autosuspend delay a module parameter of usbcore. By setting the delay value at boot time, users will be able to prevent the system from autosuspending devices which for some reason can't handle it. The patch also stores the autosuspend delay as a per-device value. A later patch will allow the user to change the value, tailoring the delay for each individual device. A delay value of 0 will prevent autosuspend. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23USB: minor cleanups for sysfs.cAlan Stern
This patch (as858) makes some minor cleanups to sysfs.c in usbcore. Unnecessary tests are removed and a few temp variables are added. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23USB: add a blacklist for devices that can't handle some things we throw at them.Oliver Neukum
This adds a blacklist to the USB core to handle some autosuspend and string issues that devices have. Originally written by Oliver, but hacked up a lot by Greg. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23USB: refactor usb device matching and create usb_device_matchGreg Kroah-Hartman
This is needed for the quirk match code. Cc: Oliver Neukum <oliver@neukum.name> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23USB: Wacom driver updatesPing Cheng
Updated Intuos and Graphire irq calls Report pad device ID Signed-off-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23gadgetfs: Fixed bug in ep_aio_read_retry.Sarah Bailey
I don't think the current code works with multiple iovecs. The original would just copy the first part of priv->buf over and over into multiple iovecs. Signed-off-by: Sarah Bailey <saharabeara@gmail.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23USB: Use USB defines in usbmouse.c and usbkbd.cMichael Opdenacker
The below patch proposes to use USB defines (defined in linux/hid.h) instead of just plain numbers in the USB_INTERFACE_INFO statements. Signed-off-by: Michael Opdenacker <michael@free-electrons.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23USB: ftdi_sio: Adding VID and PID for TellstickMicke Prag
I would like to add the VID and PID for Telldus Technologies Homeautomation usb-dongle to the ftdi_sio driver. From: Micke Prag <micke.prag@telldus.se> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23UHCI: Eliminate asynchronous skeleton Queue HeadersAlan Stern
This patch (as856) attempts to improve the performance of uhci-hcd by removing the asynchronous skeleton Queue Headers. They don't contain any useful information but the controller has to read through them at least once every millisecond, incurring a non-zero DMA overhead. Now all the asynchronous queues are combined, along with the period-1 interrupt queue, into a single list with a single skeleton QH. The start of the low-speed control, full-speed control, and bulk sublists is determined by linear search. Since there should rarely be more than a couple of QHs in the list, the searches should incur a much smaller total load than keeping the skeleton QHs. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23UHCI: Add macros for computing DMA valuesAlan Stern
This patch (as855) adds some convenience macros to uhci-hcd, to help simplify the code for computing hardware DMA pointers. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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