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* [POWERPC] Start removing linux,network-index in favour of aliasesDavid Gibson2008-03-2615-37/+12
| | | | | | | | | | | | | | | | | | | | | | | This patch alters the bootwrapper for a number of machines (roubhly all 4xx based cuboot or treeboot platforms) to use aliases instead of the linux,network-index hack to work out which MAC address to attach to which ethernet device node. The now obsolete linux,network-index properties are removed from the corresponding device trees. This won't break backwards compatiblity, because in cases where this fixup code is relevant, the device tree is part of the kernel image. The references to linux,network-index are removed from booting-without-of.txt. Not only is it now deprecated, but as a hack applicable only when the device tree blob and fixup code were in the same image, this property never belonged in booting-without-of.txt which describes the interface between the kernel and firmware or bootloaders which produce a device tree. By the time the device tree reaches the kernel, all the MAC addresses must be fully filled in. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* Merge branch 'linux-2.6'Paul Mackerras2008-03-26541-6152/+9414
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| * Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds2008-03-2413-10/+60
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: USB: Fix cut-and-paste error in rtl8150.c USB: ehci: stop vt6212 bus hogging USB: sierra: add another device id USB: sierra: dma fixes USB: add support for Motorola ROKR Z6 cellphone in mass storage mode USB: isd200: fix memory leak in isd200_get_inquiry_data USB: pl2303: another product ID USB: new quirk flag to avoid Set-Interface USB: fix gadgetfs class request delegation
| | * USB: Fix cut-and-paste error in rtl8150.cRobert P. J. Day2008-03-241-1/+1
| | | | | | | | | | | | | | | | | | Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * USB: ehci: stop vt6212 bus hoggingRene Herman2008-03-241-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The VIA VT6212 defaults to only waiting 1us between passes over EHCI's async ring, which hammers PCI badly ... and by preventing other devices from accessing the bus, causes problems like drops in IDE throughput, a problem that's been bugging users of those chips for several years. A (partial) datasheet for this chip eventually turned up, letting us see how to make it use a VIA-specific register to switch over to the the normal 10us value instead, as suggested by the EHCI specification Solution noted by Lev A. Melnikovsky. It's not clear whether this register exists on other VIA chips; we know that it's ineffective on the vt8235. So this patch only applies to chips that seem to be incarnations of the (discrete) vt6212. Signed-off-by: Rene Herman <rene.herman@gmail.com> Tested-by: Lev A. Melnikovsky <melnikovsky@mail.ru> Tested-by: Alessandro Suardi <alessandro.suardi@gmail.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * USB: sierra: add another device idKevin Lloyd2008-03-241-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | Add support for the MC8775 device to the sierra driver. Signed-off-by: Kevin Lloyd <klloyd@sierrawireless.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * USB: sierra: dma fixesOliver Neukum2008-03-241-4/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | while I was adding autosuspend to that driver I noticed a few issues. You were having DMAed buffers as a part of a structure. This will fail on platforms that are not DMA-coherent (arm, sparc, ppc, ...) Please test this patch to fix it. Signed-off-by: Kevin Lloyd <klloyd@sierrawireless.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * USB: add support for Motorola ROKR Z6 cellphone in mass storage modeConstantin Baranov2008-03-243-2/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Motorola ROKR Z6 cellphone has bugs in its USB, so it is impossible to use it as mass storage. Patch describes new "unusual" USB device for it with FIX_INQUIRY and FIX_CAPACITY flags and new BULK_IGNORE_TAG flag. Last flag relaxes check for equality of bcs->Tag and us->tag in usb_stor_Bulk_transport routine. Signed-off-by: Constantin Baranov <const@tltsu.ru> Signed-off-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net> Signed-off-by: Daniel Drake <dsd@gentoo.org> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * USB: isd200: fix memory leak in isd200_get_inquiry_dataBoaz Harrosh2008-03-241-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the inquiry fails then the info structure on us->extra was not freed. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * USB: pl2303: another product IDMax Arnold2008-03-242-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Device like this http://aldiga.com/english/A-100-USB-EDGE10.htm contains Prolific 2303 chip. Actually their site a bit outdated - I have AlDiga AL-11U GSM/GPRS/EDGE modem and it works with pl2303 module after adding corresponding product ID. By default modem uses baud rate 460800. GSM chipset - SIMCom SIM600, quad band 850/900/1800/1900 MHz Device info: T: Bus=04 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 5 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=067b ProdID=0611 Rev= 0.00 C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=500mA I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=pl2303 E: Ad=81(I) Atr=03(Int.) MxPS= 10 Ivl=1ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=83(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms From: Max Arnold <lwarxx@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * USB: new quirk flag to avoid Set-InterfaceAlan Stern2008-03-243-1/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch (as1057) fixes a problem with the X-Rite/Gretag-Macbeth Eye-One Pro display colorimeter; the device crashes when it receives a Set-Interface request. A new quirk (USB_QUIRK_NO_SET_INTF) is introduced and a quirks entry is created for this device. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * USB: fix gadgetfs class request delegationRoy Hashimoto2008-03-241-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | gadgetfs (drivers/usb/gadget/inode.c) was not delegating all non-device requests to userspace. This patch makes the handling of all request cases consistent. Signed-off-by: Roy Hashimoto <hashimot@alumni.caltech.edu> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6Linus Torvalds2008-03-243-1/+14
| |\ \ | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6: driver core: debug for bad dev_attr_show() return value. UIO: add pgprot_noncached() to UIO mmap code
| | * | driver core: debug for bad dev_attr_show() return value.Andrew Morton2008-03-242-1/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Try to find the culprit who caused http://bugzilla.kernel.org/show_bug.cgi?id=10150 Cc: <balajirrao@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * | UIO: add pgprot_noncached() to UIO mmap codeJean-Samuel Chenard2008-03-241-0/+2
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mapping of physical memory in UIO needs pgprot_noncached() to ensure that IO memory is not cached. Without pgprot_noncached(), it (accidentally) works on x86 and arm, but fails on PPC. Signed-off-by: Jean-Samuel Chenard <jsamch@gmail.com> Signed-off-by: Hans J Koch <hjk@linutronix.de> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | PCI: revert "pcie: utilize pcie transaction pending bit"Andrew Morton2008-03-242-25/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Revert as it is reported to cause problems for people. commit 4348a2dc49f9baecd34a9b0904245488c6189398 Author: Shaohua Li <shaohua.li@intel.com> Date: Wed Oct 24 10:45:08 2007 +0800 pcie: utilize pcie transaction pending bit PCIE has a mechanism to wait for Non-Posted request to complete. I think pci_disable_device is a good place to do this. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Due to the regression reported at http://bugzilla.kernel.org/show_bug.cgi?id=10065 Cc: Shaohua Li <shaohua.li@intel.com> Cc: Soeren Sonnenburg <kernel@nn7.de> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | PCI: iova: lockdep false alarm fixMark Gross2008-03-241-0/+7
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | lockdep goes off on the iova copy_reserved_iova() because it and a function it calls grabs locks in the from, and the to of the copy operation. The function grab locks of the same lock classes triggering the warning. The first lock grabbed is for the constant reserved areas that is never accessed after early boot. Technically you could do without grabbing the locks for the "from" structure its copying reserved areas from. But dropping the from locks to me looks wrong, even though it would be ok. The affected code only runs in early boot as its setting up the DMAR engines. This patch gives the reserved_ioval_list locks special lockdep classes. Signed-off-by: Mark Gross <mgross@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * Merge branch 'merge' of ↵Linus Torvalds2008-03-2439-1267/+3032
| |\ | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: [POWERPC] mpc5200: Fix incorrect compatible string for the mdio node [POWERPC] Update some defconfigs
| | * Merge branch 'linux-2.6' into mergePaul Mackerras2008-03-2532-245/+171
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| | * | [POWERPC] mpc5200: Fix incorrect compatible string for the mdio nodeGrant Likely2008-03-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The MDIO node in the lite5200b.dts file needs to also claim compatibility with the older mpc5200 chip. Otherwise the driver won't find the device. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * | [POWERPC] Update some defconfigsKumar Gala2008-03-2438-1266/+3031
| | | | | | | | | | | | | | | | Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | | Merge branch 'upstream-linus' of ↵Linus Torvalds2008-03-246-45/+140
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: [libata] ahci: SB600 workaround is suspect... play it safe for now sata_promise: fix hardreset hotplug events, take 2 libata: improve HPA error handling libata: assume no device is attached if both IDENTIFYs are aborted pata_it821x: use raw nbytes in check_atapi_dma libata: implement ata_qc_raw_nbytes()
| | * | | [libata] ahci: SB600 workaround is suspect... play it safe for nowJeff Garzik2008-03-241-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | At least one report claims that a878539ef994787c447a98c2e3ba0fe3dad984ec failed to solve lockups, whereas the old limit-to-32-bit trick worked. Restore the 32-bit limit, but also leave the 255-sector limit in place, because we know that's needed as well. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| | * | | sata_promise: fix hardreset hotplug events, take 2Mikael Pettersson2008-03-241-21/+88
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A Promise SATA controller will signal hotplug events when a hard reset (COMRESET) is done on a port. These events aren't masked by the driver, and the unexpected interrupts will cause a sequence of failed reset attempts util libata's EH finally gives up. This has not been a common problem so far, but the pending libata hardreset-by-default changes makes it a critical issue. The solution is to disable hotplug events before a reset, and to reenable them afterwards. (Promise's driver does this too.) This patch adds SATA-specific versions of ->freeze() and ->thaw() that also disable and enable hotplug events. PATA ports continue to use the old versions of ->freeze() and ->thaw(). Accesses to the hotplug register must be serialised via host->lock. We rely on ap->lock == &ap->host->lock and that libata takes this lock before ->freeze() and ->thaw(). Document this requirement. The interrupt handler is adjusted so its hotplug register accesses are inside the region protected by host->lock. Tested on various chips (SATA300TX4, SATA300TX2plus, SATAII150TX4, FastTrack TX4000) with various combinations of SATA and PATA disks, with and without the pending hardreset-by-default changes. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Acked-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
| | * | | libata: improve HPA error handlingTejun Heo2008-03-241-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There's no point in retrying and eventually failing device detection when the device rejects READ_NATIVE_MAX[_EXT]. Disable HPA unlocking if READ_NATIVE_MAX[_EXT] is rejected as done when SET_MAX[_EXT] is rejected. This allows some old drives to work even if they aren't blacklisted. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
| | * | | libata: assume no device is attached if both IDENTIFYs are abortedTejun Heo2008-03-241-14/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is to fix bugzilla #10254. QSI cdrom attached to pata_sis as secondary master appears as phantom device for the slave. Interestingly, instead of not setting DRQ after IDENTIFY which triggers NODEV_HINT, it aborts both IDENTIFY and IDENTIFY PACKET which makes EH retry. Modify EH such that it assumes no device is attached if both flavors of IDENTIFY are aborted by the device. There really isn't much point in retrying when the device actively aborts the commands. While at it, convert NODEV detection message to ata_dev_printk() to help debugging obscure detection problems. This problem was reported by Jan Bücken. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Jan Bücken <jb.faq@gmx.de> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
| | * | | pata_it821x: use raw nbytes in check_atapi_dmaTejun Heo2008-03-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pata_it821x needs to look at raw request size in check_atapi_dma(). Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
| | * | | libata: implement ata_qc_raw_nbytes()Tejun Heo2008-03-242-4/+18
| | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | Implement ata_qc_raw_nbytes() which determines the raw user-requested size of a PC command. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
| * | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-linusLinus Torvalds2008-03-245-3/+15
| |\ \ \ | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-linus: kbuild: soften modpost checks when doing cross builds
| | * | | kbuild: soften modpost checks when doing cross buildsSam Ravnborg2008-03-235-3/+15
| | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The module alias support in the kernel have a consistency check where it is checked that the size of a structure in the kernel and on the build host are the same. For cross builds this check does not make sense so detect when we do cross builds and silently skip the check in these situations. This fixes a build bug for a wireless driver when cross building for arm. Acked-by: Michael Buesch <mb@bu3sch.de> Tested-by: Gordon Farquharson <gordonfarquharson@gmail.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: stable@kernel.org
| * | | Make printk() console semaphore accesses sensibleLinus Torvalds2008-03-241-35/+48
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The printk() logic on when/how to get the console semaphore was unreadable, this splits the code up into a few helper functions and makes it easier to follow what is going on. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | bsd_acct: using task_struct->tgid is not right in pid-namespacesPavel Emelyanov2008-03-241-6/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In case we're accounting from a sub-namespace, the tgids reported will not refer to the right namespace. Save the pid_namespace we're accounting in on the acct_glbs and use it in do_acct_process. Two less :) places using the task_struct.tgid member. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Cc: Oleg Nesterov <oleg@tv-sign.ru> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | bsd_acct: plain current->real_parent access is not always safePavel Emelyanov2008-03-241-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is minor, but dereferencing even current real_parent is not safe on debug kernels, since the memory, this points to, can be unmapped - RCU protection is required. Besides, the tgid field is deprecated and is to be replaced with task_tgid_xxx call (the 2nd patch), so RCU will be required anyway. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Cc: Oleg Nesterov <oleg@tv-sign.ru> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | revert "kswapd should only wait on IO if there is IO"Andrew Morton2008-03-241-22/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Revert commit f1a9ee758de7de1e040de849fdef46e6802ea117: Author: Rik van Riel <riel@redhat.com> Date: Thu Feb 7 00:14:08 2008 -0800 kswapd should only wait on IO if there is IO The current kswapd (and try_to_free_pages) code has an oddity where the code will wait on IO, even if there is no IO in flight. This problem is notable especially when the system scans through many unfreeable pages, causing unnecessary stalls in the VM. Additionally, tasks without __GFP_FS or __GFP_IO in the direct reclaim path will sleep if a significant number of pages are encountered that should be written out. This gives kswapd a chance to write out those pages, while the direct reclaim task sleeps. Signed-off-by: Rik van Riel <riel@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Because of large latencies and interactivity problems reported by Carlos, here: http://lkml.org/lkml/2008/3/22/211 Cc: Rik van Riel <riel@redhat.com> Cc: "Carlos R. Mafra" <crmafra2@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | hw_random doc updatesDavid Brownell2008-03-242-20/+48
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update documentation for the hw_random support to be current: - Documentation/hw_random.txt has been updated to reflect the current code: it's a framework now, a "core" with a small sysfs interface, that hardware-specific drivers plug in to. Text specific to Intel hardware is now at the end. - Kconfig now references the Documentation/hw_random.txt file and better explains what this really does. Both chunks of documentation now higlight the fact that the kernel entropy pool is maintained by "rngd", and this driver has nothing directly to do with that important task. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | smackfs: remove redundant lock, fix open(,O_RDWR)Ahmed S. Darwish2008-03-241-33/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Older smackfs was parsing MAC rules by characters, thus a need of locking write sessions on open() was needed. This lock is no longer useful now since each rule is handled by a single write() call. This is also a bugfix since seq_open() was not called if an open() O_RDWR flag was given, leading to a seq_read() without an initialized seq_file, thus an Oops. Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com> Reported-by: Jonathan Corbet <corbet@lwn.net> Acked-by: Casey Schaufler <casey@schaufler-ca.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | markers: remove ACCESS_ONCEMathieu Desnoyers2008-03-241-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As Paul pointed out, the ACCESS_ONCE are not needed because we already have the explicit surrounding memory barriers. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Christoph Hellwig <hch@infradead.org> Cc: Mike Mason <mmlnx@us.ibm.com> Cc: Dipankar Sarma <dipankar@in.ibm.com> Cc: David Smith <dsmith@redhat.com> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Adrian Bunk <adrian.bunk@movial.fi> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | markers: update preempt_disable. call_rcu, rcu_barrier commentsMathieu Desnoyers2008-03-241-11/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add comments requested by Andrew. Updated comments about synchronize_sched(). Since we use call_rcu and rcu_barrier now, these comments were out of sync with the code. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Christoph Hellwig <hch@infradead.org> Cc: Mike Mason <mmlnx@us.ibm.com> Cc: Dipankar Sarma <dipankar@in.ibm.com> Cc: David Smith <dsmith@redhat.com> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Adrian Bunk <adrian.bunk@movial.fi> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | mm: fix boundary checking in free_bootmem_coreYinghai Lu2008-03-241-6/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With numa enabled, some callers could have a range of memory on one node but try to free that on other node. This can cause some pages to be freed wrongly. For example: when we try to allocate 128g boot ram early for gart/swiotlb, and free that range later so gart/swiotlb can get some range afterwards. With this patch, we don't need to care which node holds the range, just loop to call free_bootmem_node for all online nodes. This patch makes free_bootmem_core() more robust by trimming the sidx and eidx according the ram range that the node has. And make the free_bootmem_core handle this out of range case. We could use bdata_list to make sure the range can be freed for sure. So next time, we don't need to loop online nodes and could use free_bootmem directly. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Andi Kleen <ak@suse.de> Cc: Yasunori Goto <y-goto@jp.fujitsu.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: Ingo Molnar <mingo@elte.hu> Tested-by: Ingo Molnar <mingo@elte.hu> Cc: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | mtd: memory corruption in block2mtd.cIngo van Lil2008-03-241-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The block2mtd driver (drivers/mtd/devices/block2mtd.c) will kfree an on-stack pointer when handling an invalid argument line (e.g. block2mtd=/dev/loop0,xxx). The kfree was added some time ago when "name" was dynamically allocated. Signed-off-by: Ingo van Lil <inguin@gmx.de> Acked-by: Joern Engel <joern@lazybastard.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: <stable@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | kernel-parameters.txt: document memmap option betterPavel Machek2008-03-241-0/+4
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | Provide example for memmap exclude option (it is slightly strange and non-trivial) and provide nice small HOWTO for people with bad memory. Signed-off-by: Jan-Simon Moeller <dl9pf@gmx.de> Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | Merge branch 'merge' of ↵Linus Torvalds2008-03-244-7/+17
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: [POWERPC] Fix Oops with TQM5200 on TQM5200 [POWERPC] mpc5200: Fix null dereference if bestcomm fails to initialize [POWERPC] mpc5200-fec: Fix possible NULL dereference in mdio driver [POWERPC] Fix crash in init_ipic_sysfs on efika [POWERPC] Don't use 64k pages for ioremap on pSeries
| | * | [POWERPC] Fix Oops with TQM5200 on TQM5200Anatolij Gustschin2008-03-241-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The "bestcomm-core" driver defines its of_match table as follows static struct of_device_id mpc52xx_bcom_of_match[] = { { .type = "dma-controller", .compatible = "fsl,mpc5200-bestcomm", }, { .type = "dma-controller", .compatible = "mpc5200-bestcomm", }, {}, }; so while registering the driver, the driver's probe function won't be called, because the device tree node doesn't have a device_type property. Thus the driver's bcom_engine structure won't be allocated. Referencing this structure later causes observed Oops. Checking bcom_eng pointer for NULL before referencing data pointed by it prevents oopsing, but fec driver still doesn't work (because of the lost bestcomm match and resulted task allocation failure). Actually the compatible property exists and should match and so the fec driver should work. This removes .type = "dma-controller" from the bestcomm driver's mpc52xx_bcom_of_match table to solve the problem. Signed-off-by: Anatolij Gustschin <agust@denx.de> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * | [POWERPC] mpc5200: Fix null dereference if bestcomm fails to initializeGrant Likely2008-03-241-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the bestcomm initialization fails, calls to the task allocate function should fail gracefully instead of oopsing with a NULL deref. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * | [POWERPC] mpc5200-fec: Fix possible NULL dereference in mdio driverGrant Likely2008-03-241-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the reg property is missing from the phy node (unlikely, but possible), then the kernel will oops with a NULL pointer dereference. This fixes it by checking the pointer first. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * | [POWERPC] Fix crash in init_ipic_sysfs on efikaOlaf Hering2008-03-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The global primary_ipic in arch/powerpc/sysdev/ipic.c can remain NULL if ipic_init() fails, which will happen on machines that don't have an ipic interrupt controller. init_ipic_sysfs() will crash in that case. Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * | [POWERPC] Don't use 64k pages for ioremap on pSeriesPaul Mackerras2008-03-241-3/+8
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On pSeries, the hypervisor doesn't let us map in the eHEA ethernet adapter using 64k pages, and thus the ehea driver will fail if 64k pages are configured. This works around the problem by always using 4k pages for ioremap on pSeries (but not on other platforms). A better fix would be to check whether the partition could ever have an eHEA adapter, and only force 4k pages if it could, but this will do for 2.6.25. This is based on an earlier patch by Tony Breeds. Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2008-03-249-167/+97
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC64]: exec PT_DTRACE [SPARC64]: Use shorter list_splice_init() for brevity. [SPARC64]: Remove most limitations to kernel image size.
| | * | [SPARC64]: exec PT_DTRACERoland McGrath2008-03-232-6/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PT_DTRACE flag is meaningless and obsolete. Don't touch it. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * | [SPARC64]: Use shorter list_splice_init() for brevity.Robert P. J. Day2008-03-231-2/+1
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
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