- 14 10月, 2007 2 次提交
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由 Matthew Wilcox 提交于
libffi in GCC 4.2 needs cachectl.h to do its cache flushing. But we don't currently export it. I believe this patch should do the trick. Signed-off-by: NMatthew Wilcox <matthew@wil.cx> Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Geert Uytterhoeven 提交于
m68k: ignore restart_syscall, which is not needed on m68k. Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 13 10月, 2007 38 次提交
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由 Nick Piggin 提交于
According to latest memory ordering specification documents from Intel and AMD, both manufacturers are committed to in-order loads from cacheable memory for the x86 architecture. Hence, smp_rmb() may be a simple barrier. Also according to those documents, and according to existing practice in Linux (eg. spin_unlock doesn't enforce ordering), stores to cacheable memory are visible in program order too. Special string stores are safe -- their constituent stores may be out of order, but they must complete in order WRT surrounding stores. Nontemporal stores to WB memory can go out of order, and so they should be fenced explicitly to make them appear in-order WRT other stores. Hence, smp_wmb() may be a simple barrier. http://developer.intel.com/products/processor/manuals/318147.pdf http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/24593.pdf In userspace microbenchmarks on a core2 system, fence instructions range anywhere from around 15 cycles to 50, which may not be totally insignificant in performance critical paths (code size will go down too). However the primary motivation for this is to have the canonical barrier implementation for x86 architecture. smp_rmb on buggy pentium pros remains a locked op, which is apparently required. Signed-off-by: NNick Piggin <npiggin@suse.de> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Nick Piggin 提交于
wmb() on x86 must always include a barrier, because stores can go out of order in many cases when dealing with devices (eg. WC memory). Signed-off-by: NNick Piggin <npiggin@suse.de> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Greg Kroah-Hartman 提交于
It was just duplicated code... Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jeff Garzik 提交于
* fix bug in pci_read() and pci_write() which prevented PCI domain support from working (hardcoded domain 0). * unconditionally enable CONFIG_PCI_DOMAINS * implement pci_domain_nr() and pci_proc_domain(), as required of all arches when CONFIG_PCI_DOMAINS is enabled. * store domain in struct pci_sysdata, as assigned by ACPI * support "pci=nodomains" Signed-off-by: NJeff Garzik <jgarzik@redhat.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jeff Garzik 提交于
* Introduce pci_domains_supported global, hardcoded to zero if !CONFIG_PCI_DOMAINS. * Introduce 'nodomains' boot option, which clears pci_domains_supported on platforms that enable it by default (x86, x86-64, and others when they are converted to use this). Signed-off-by: NJeff Garzik <jgarzik@redhat.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Gary Hade 提交于
Modify PCI Bridge Control ISA flag for clarity This patch changes PCI_BRIDGE_CTL_NO_ISA to PCI_BRIDGE_CTL_ISA and modifies it's clarifying comment and locations where used. The change reduces the chance of future confusion since it makes the set/unset meaning of the bit the same in both the bridge control register and bridge_ctl field of the pci_bus struct. Signed-off-by: NGary Hade <garyhade@us.ibm.com> Acked-by: NLinas Vepstas <linas@austin.ibm.com> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alex Chiang 提交于
These IDs are in pciutils, but haven't been added to the kernel yet. Signed-off-by: NAlex Chiang <achiang@hp.com> Signed-off-by: NMatthew Wilcox <matthew@wil.cx> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Thomas Backlund 提交于
Add support for PicoPower PT86C523 IRQ router to be used with the in-kernel yenta driver for CardBus. With this patch cardbus works on e.g. Dell Latitude XPi P150CD. Initial patch for kernel 2.4 series by Sune Mølgaard http://molgaard.org/code/linux-2.4.31-picopower.patch Ported to 2.6.20 by Chmouel Boudjnah (http://www.chmouel.com) Testing and confirmation that it works by Austin Acton Cleaned up a little for inclusion in a 2.6.21-rc7 based kernel. Added some more cleanups according to CodingStyle, as noted by Randy Dunlap on LKML. [akpm@linux-foundation.org: build fixes] Signed-off-by: NThomas Backlund <tmb@mandriva.org> Cc: Andi Kleen <ak@suse.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Stern 提交于
This patch (as997) fixes a bug in the USB serial core. The core needs to pay attention to drivers' requirements regarding the number and type of endpoints a device has. At the same time, the patch changes the NUM_DONT_CARE constant (which is stored in a single-byte field) from -1 to a safer, unsigned value. It also improves the kerneldoc for several fields in the usb_serial_driver structure. Finally, the patch replaces a list_for_each() with list_for_each_entry(). Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Stern 提交于
System suspends and hibernation are supposed to be as transparent as possible. By this reasoning, if a USB device is already autosuspended before the system sleep begins then it should remain autosuspended after the system wakes up. This patch (as1001) adds a skip_sys_resume flag to the usb_device structure and uses it to avoid waking up devices which were suspended when a system sleep began. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 David Brownell 提交于
Remove <linux/usb_sl811.h> ... somehow this was recreated when the Blackfin arch was merged, instead of using <linux/usb/sl811.h> which is the correct header. Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 David Brownell 提交于
Move <linux/usb_gadget.h> to <linux/usb/gadget.h>, reducing some of the clutter in the main include directory. Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Sarah Sharp 提交于
powertop currently tracks interrupts generated by uhci, ehci, and ohci, but it has no way of telling which USB device to blame USB bus activity on. This patch exports the number of URBs that are submitted for a given device. Cat the file 'urbnum' in /sys/bus/usb/devices/.../ Signed-off-by: NSarah Sharp <sarah.a.sharp@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Stern 提交于
This patch (as995) cleans up the remains of the former NO_AUTOSUSPEND quirk. Since autosuspend is disabled by default, we will let userspace worry about which devices can safely be suspended. Thus the lengthy series of quirk entries is no longer needed, and neither is the quirk ID. I suppose someone might eventually run across a hub that can't be suspended; let's ignore the possibility for now. The patch also cleans up the hasty way in which autosuspend gets disabled. Setting udev->autosuspend_delay to -1 wasn't quite right, because the value is always supposed to be a multiple of HZ. It's better to leave the delay value alone and set autosuspend_disabled, which is what the quirk routine used to do. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> Cc: stable <stable@kernel.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Stern 提交于
This patch (as989) makes usbcore flush all outstanding URBs for each device as the device is suspended. This will be true even when CONFIG_USB_SUSPEND is not enabled. In addition, an extra can_submit flag is added to the usb_device structure. That flag will be turned off whenever a suspend request has been received for the device, even if the device isn't actually suspended because CONFIG_USB_SUSPEND isn't set. It's no longer necessary to check for the device state being equal to USB_STATE_SUSPENDED during URB submission; that check can be replaced by a check of the can_submit flag. This also permits us to remove some questionable references to the deprecated power.power_state field. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Stern 提交于
Now that urb->status isn't used, urb->lock doesn't protect anything. This patch (as980) removes it and replaces it with a private mutex in the one remaining place it was still used: usb_kill_urb. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Stern 提交于
This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Inaky Perez-Gonzalez 提交于
This just modifies 'struct usb_device' to contain the 'authorized' bit. It also adds a 'wusb' bit. This is needed because nonauthorized (and thus non-authenticated) wusb devices will fail certain kind of simple requests (such as string descriptors). By knowing the device is WUSB, we just avoid them. Signed-off-by: NInaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 David Brownell 提交于
This adds two small inlines to the gadget stack, which will often evaluate to compile-time constants. That can help shrink object code and remove #ifdeffery. - gadget_is_dualspeed(), currently always a compile-time constant (depending on which controller is selected). - gadget_is_otg(), usually a compile time "false", but this is a runtime test if the platform enables OTG (since it's reasonable to populate boards with different USB sockets). It also updates two peripheral controller drivers to use these: - fsl_usb2_udc, mostly OTG-related bugfixes: non-OTG devices must follow the rules about drawing VBUS power, and OTG ones need to reject invalid SET_FEATURE requests. - omap_udc, just scrubbing a bit of #ifdeffery. And also gadgetfs, which lost some #ifdefs and moved to a more standard handling of DEBUG and VERBOSE_DEBUG. The main benefits come from patches which will follow. Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Stern 提交于
This patch (as951) cleans up a few loose ends from earlier patches. Redundant checks for non-NULL urb->dev are removed, as are checks of urb->dev->bus (which can never be NULL). Conversely, a check for non-NULL urb->ep is added to the unlink paths. A homegrown round-down-to-power-of-2 loop is simplified by using the ilog2 routine. The comparison in usb_urb_dir_in() is made more transparent. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Stern 提交于
This patch (as946) eliminates many of the uses of urb->pipe in usbcore. Unfortunately there will have to be a significant API change, affecting all USB drivers, before we can remove it entirely. This patch contents itself with changing only the interface to usb_buffer_map_sg() and friends: The pipe argument is replaced with a direction flag. That can be done easily because those routines get used in only one place. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Stern 提交于
This patch (as945) adds a bit to urb->transfer_flags for recording the direction of the URB. The bit is set/cleared automatically in usb_submit_urb() so drivers don't have to worry about it (although as a result, it isn't valid until the URB has been submitted). Inline routines are added for easily checking an URB's direction. They replace calls to usb_pipein in the DMA-mapping parts of hcd.c. For non-control endpoints, the direction is determined directly from the endpoint descriptor. However control endpoints are bi-directional; for them the direction is determined from the bRequestType byte and the wLength value in the setup packet. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Stern 提交于
This patch (as944) adds an explicit "enabled" field to the usb_host_endpoint structure and uses it in place of the current mechanism. This is merely a time-space tradeoff; it makes checking whether URBs may be submitted to an endpoint simpler. The existing mechanism is efficient when converting urb->pipe to an endpoint pointer, but it's not so efficient when urb->ep is used instead. As a side effect, the procedure for enabling an endpoint is now a little more complicated. The ad-hoc inline code in usb.c and hub.c for enabling ep0 is now replaced with calls to usb_enable_endpoint, which is no longer static. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Stern 提交于
This patch (as943) prepares the way for eliminating urb->pipe by introducing an endpoint pointer into struct urb. For now urb->ep is set by usb_submit_urb() from the pipe value; eventually drivers will set it themselves and we will remove urb->pipe completely. The patch also adds new inline routines to retrieve an endpoint descriptor's number and transfer type, essentially as replacements for usb_pipeendpoint and usb_pipetype. usb_submit_urb(), usb_hcd_submit_urb(), and usb_hcd_unlink_urb() are converted to use the new field and new routines. Other parts of usbcore will be converted in later patches. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 David Brownell 提交于
This just fixes some whitespace bugs in <linux/usb_gadget.h>, mostly extraneous spaces where a single tab suffices. Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Tejun Heo 提交于
Sysfs has gone through considerable amount of reimplementation. Add copyrights. Any objections? :-) Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Greg Kroah-Hartman 提交于
I've been hacking on these files for a while now, might as well make it official... Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Greg Kroah-Hartman 提交于
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Greg Kroah-Hartman 提交于
There is only one user of it, and it is only a wrapper for kset_init(). Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Tejun Heo 提交于
Sysfs file poll implementation is scattered over sysfs and kobject. Event numbering is done in sysfs_dirent but wait itself is done on kobject. This not only unecessarily bloats both kobject and sysfs_dirent but is also buggy - if a sysfs_dirent is removed while there still are pollers, the associaton betwen the kobject and sysfs_dirent breaks and kobject may be freed with the pollers still sleeping on it. This patch moves whole poll implementation into sysfs_open_dirent. Each time a sysfs_open_dirent is created, event number restarts from 1 and pollers sleep on sysfs_open_dirent. As event sequence number is meaningless without any open file and pollers should have open file and thus sysfs_open_dirent, this ephemeral event counting works and is a saner implementation. This patch fixes the dnagling sleepers bug and reduces the sizes of kobject and sysfs_dirent by one pointer. Signed-off-by: NTejun Heo <htejun@gmail.com> Acked-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Tejun Heo 提交于
sysfs_update_file() depends on inode->i_mtime but sysfs iondes are now reclaimable making the reported modification time unreliable. There's only one user (pci hotplug) of this notification mechanism and it reportedly isn't utilized from userland. Kill sysfs_update_file(). Signed-off-by: NTejun Heo <htejun@gmail.com> Acked-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Tejun Heo 提交于
sysfs is about to go through major overhaul making this a pretty good opportunity to clean up (out-of-tree changes and pending patches will need regeneration anyway). Clean up headers. * Kill space between * and symbolname. * Move SYSFS_* type constants and flags into fs/sysfs/sysfs.h. They're internal to sysfs. * Reformat function prototypes and add argument symbol names. * Make dummy function definition order match that of function prototypes. * Add some comments. * Reorganize fs/sysfs/sysfs.h according to which file the declared variable or feature lives in. This patch does not introduce any behavior change. Signed-off-by: NTejun Heo <htejun@gmail.com> Acked-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Kay Sievers 提交于
Signed-off-by: NKay Sievers <kay.sievers@vrfy.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jean Delvare 提交于
While platform_device.id is a u32, platform_device_add() handles "-1" as a special id value. This has potential for confusion and bugs. Making it an int instead should prevent problems from happening in the future. Signed-off-by: NJean Delvare <khali@linux-fr.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Kay Sievers 提交于
Move uevent specific logic from the core into kobject_uevent.c, which does no longer require to link the unused string array if hotplug is not compiled in. Signed-off-by: NKay Sievers <kay.sievers@vrfy.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 tonyj@suse.de 提交于
Convert from class_device to device for drivers/video. Signed-off-by: NTony Jones <tonyj@suse.de> Signed-off-by: NKay Sievers <kay.sievers@vrfy.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Eric W. Biederman 提交于
While shadow directories appear to be a good idea, the current scheme of controlling their creation and destruction outside of sysfs appears to be a locking and maintenance nightmare in the face of sysfs directories dynamically coming and going. Which can now occur for directories containing network devices when CONFIG_SYSFS_DEPRECATED is not set. This patch removes everything from the initial shadow directory support that allowed the shadow directory creation to be controlled at a higher level. So except for a few bits of sysfs_rename_dir everything from commit b592fcfe is now gone. Signed-off-by: NEric W. Biederman <ebiederm@xmission.com> Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Robin Getz 提交于
Allows debugfs helper functions to have a hex output, rather than just decimal Signed-off-by: NRobin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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