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2008-05-02lguest: make Launcher see device status updatesRusty Russell
This brings us closer to Real Life, where we'd examine the device features once it's set the DRIVER_OK status bit. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-05-02lguest: remove bogus NULL cpu checkRusty Russell
If lg isn't NULL, and cpu_id is sane, &lg->cpus[cpu_id] can't be NULL. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-05-02lguest: avoid using NR_CPUS as a bounds check.Rusty Russell
NR_CPUS (being a host number) is an arbitrary limit for the Guest. Using the array size directly (which currently happes to be NR_CPUS) is more futureproof. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-05-02virtio: add virtio disk geometry featureRyan Harper
Rather than faking up some geometry, allow the backend to push the disk geometry via virtio pci config option. Keep the old geo code around for compatibility. Signed-off-by: Ryan Harper <ryanh@us.ibm.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (modified to single struct)
2008-05-02virtio: explicit advertisement of driver featuresRusty Russell
A recent proposed feature addition to the virtio block driver revealed some flaws in the API: in particular, we assume that feature negotiation is complete once a driver's probe function returns. There is nothing in the API to require this, however, and even I didn't notice when it was violated. So instead, we require the driver to specify what features it supports in a table, we can then move the feature negotiation into the virtio core. The intersection of device and driver features are presented in a new 'features' bitmap in the struct virtio_device. Note that this highlights the difference between Linux unsigned-long bitmaps where each unsigned long is in native endian, and a straight-forward little-endian array of bytes. Drivers can still remove feature bits in their probe routine if they really have to. API changes: - dev->config->feature() no longer gets and acks a feature. - drivers should advertise their features in the 'feature_table' field - use virtio_has_feature() for extra sanity when checking feature bits Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-05-02virtio: change config to guest endian.Rusty Russell
A recent proposed feature addition to the virtio block driver revealed some flaws in the API, in particular how easy it is to break big endian machines. The virtio config space was originally chosen to be little-endian, because we thought the config might be part of the PCI config space for virtio_pci. It's actually a separate mmio region, so that argument holds little water; as only x86 is currently using the virtio mechanism, we can change this (but must do so now, before the impending s390 merge). API changes: - __virtio_config_val() just becomes a striaght vdev->config_get() call. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-05-02virtio: finer-grained features for virtio_netRusty Russell
So, we previously had a 'VIRTIO_NET_F_GSO' bit which meant that 'the host can handle csum offload, and any TSO (v4&v6 incl ECN) or UFO packets you might want to send. I thought this was good enough for Linux, but it actually isn't, since we don't do UFO in software. So, add separate feature bits for what the host can handle. Add equivalent ones for the guest to say what it can handle, because LRO is coming too (thanks Herbert!). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-05-02virtio: wean net driver off NETDEV_TX_BUSYRusty Russell
Herbert tells me that returning NETDEV_TX_BUSY from hard_start_xmit is seen as a poor thing to do; we should cache the packet and stop the queue. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-05-02virtio-blk: fix remove oopsMarcelo Tosatti
Do not unregister the major at device remove, since there might be another device instances around. (qemu) pci_del 0 11 (qemu) ACPI: PCI interrupt for device 0000:00:0b.0 disabled (qemu) pci_del 0 10 (qemu) ------------[ cut here ]------------ WARNING: at block/genhd.c:126 unregister_blkdev+0x74/0x9e() ACPI: PCI interrupt for device 0000:00:0a.0 disabled Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-05-02virtio: fix scatterlist sizing in net driver.Rusty Russell
Herbert Xu points out (within another patch) that my scatterlists are too short: one entry for the gso header, one for the skb->data, and MAX_SKB_FRAGS for all the fragments. Fix both xmit and recv sides (recv currently unused, coming in later patch). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-05-02virtio: de-structify virtio_block status byteRusty Russell
Ron Minnich points out that a struct containing a char is not always sizeof(char); simplest to remove the structure to avoid confusion. Cc: "ron minnich" <rminnich@gmail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-05-02virtio: export more headers to userspaceChristian Borntraeger
Rusty, is there a reason why we dont export the virtio headers for 9p, balloon, console, pci, and virtio_ring? kvm uses make sync, but I think it is still useful to heave these headers exported as they might be useful for other userspace tools. I dont export virtio.h, because it does not seem to have useful information for userspace and it requires scatterlist.h which is also not exported. See also my other mail about your "virtio: change config to guest endian." patch. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-05-02virtio: fix sparse return void-valued expression warningsHarvey Harrison
drivers/virtio/virtio_pci.c:148:2: warning: returning void-valued expression drivers/virtio/virtio_pci.c:155:2: warning: returning void-valued expression Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-05-02virtio: fix tx_ stats in virtio_netRusty Russell
get_buf() gives the length written by the other side, which will be zero. We want to add the skb length. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-05-02virtio: ignore corrupted virtqueues rather than spinning.Rusty Russell
A corrupt virtqueue (caused by the other end screwing up) can have strange results such as a driver spinning: just bail when we try to get a buffer from a known-broken queue. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-05-01Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: firewire: fw-sbp2: log scsi_target ID at release ieee1394: fix NULL pointer dereference in sysfs access
2008-05-01Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-linusLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-linus: kbuild: fix vmlinux.o link kconfig: made check-lxdialog more portable
2008-05-01Merge git://git.infradead.org/mtd-2.6Linus Torvalds
* git://git.infradead.org/mtd-2.6: [MTD][NOR] Add physical address to point() method [JFFS2] Track parent inode for directories (for NFS export) [JFFS2] Invert last argument of jffs2_gc_fetch_inode(), make it boolean. [JFFS2] Quiet lockdep false positive. [JFFS2] Clean up jffs2_alloc_inode() and jffs2_i_init_once() [MTD] Delete long-unused jedec.h header file. [MTD] [NAND] at91_nand: use at91_nand_{en,dis}able consistently.
2008-05-01[MTD][NOR] Add physical address to point() methodJared Hulbert
Adding the ability to get a physical address from point() in addition to virtual address. This physical address is required for XIP of userspace code from flash. Signed-off-by: Jared Hulbert <jaredeh@gmail.com> Reviewed-by: Jörn Engel <joern@logfs.org> Acked-by: Nicolas Pitre <nico@cam.org> Acked-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-05-01firewire: fw-sbp2: log scsi_target ID at releaseStefan Richter
Makes the good-by message more informative. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Jarod Wilson <jwilson@redhat.com>
2008-05-01ieee1394: fix NULL pointer dereference in sysfs accessStefan Richter
Regression since "ieee1394: prevent device binding of raw1394, video1394, dv1394", commit d2ace29fa44589da51fedc06a67b3f05301f3bfd: $ cat /sys/bus/ieee1394/drivers/raw1394/device_ids triggers a NULL pointer dereference in fw_show_drv_device_ids. Reported by Miles Lane. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Tested-by: Miles Lane <miles.lane@gmail.com>
2008-05-01[JFFS2] Track parent inode for directories (for NFS export)David Woodhouse
To support NFS export, we need to know the parent inode of directories. Rather than growing the jffs2_inode_cache structure, share space with the nlink field -- which was always set to 1 for directories anyway. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-05-01kbuild: fix vmlinux.o linkSam Ravnborg
We always linked vmliux.o. Remove init/built-in.o dependency so we avoid this Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-05-01kconfig: made check-lxdialog more portableSam Ravnborg
OS-X shell did not like 'echo -e' so implement suggestion from Al Viro to use a more portable construct. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Al Viro <viro@ZenIV.linux.org.uk> Acked-By: Timur Tabi <timur@freescale.com>
2008-05-01make generic sys_ptrace unconditionalChristoph Hellwig
With s390 the last arch switched to the generic sys_ptrace yesterday so we can now kill the ifdef around it to enforce every new port it using it instead of introducing new weirdo versions. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01[JFFS2] Invert last argument of jffs2_gc_fetch_inode(), make it boolean.David Woodhouse
We don't actually care about nlink; we only care whether the inode in question is unlinked or not. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-05-01Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: ide: fix early setup of hwif->host_flags
2008-05-01Merge branch 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6Linus Torvalds
* 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6: hwmon: (adt7473) minor cleanup / refactoring hwmon: (asb100) Remove some dead code hwmon: (lm75) Fix an incorrect comment hwmon: (w83793) VID and VRM handling cleanups hwmon: (w83l785ts) Don't ask the user to report failures hwmon: (smsc47b397) add a new chip id (0x8c)
2008-05-01Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linusLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: module: add MODULE_STATE_GOING notifier call module: Enhance verify_export_symbols module: set unused_gpl_crcs instead of overwriting unused_crcs module: neaten __find_symbol, rename to find_symbol module: reduce module image and resident size module: make module_sect_attrs private to kernel/module.c
2008-05-01Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: [CRYPTO] cryptd: Correct kzalloc error test [CRYPTO] eseqiv: Fix off-by-one encryption [CRYPTO] api: Fix scatterwalk_sg_chain [CRYPTO] authenc: Fix async crypto crash in crypto_authenc_genicv()
2008-05-01m68knommu: fix FEC driver lockingSebastian Siewior
It's easy: grab locks before talking to hardware and realease them afterwards. The one big lock has been splitted into a hw_lock and mii_lock. Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de> Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01m68knommu: kill warnings in FEC driverSebastian Siewior
linux-2.6-mk68/drivers/net/fec.c: In function 'fec_enet_module_init': linux-2.6-mk68/drivers/net/fec.c:2627: warning: unused variable 'j' linux-2.6-mk68/drivers/net/fec.c: At top level: linux-2.6-mk68/drivers/net/fec.c:2136: warning: 'mii_link_interrupt' defined but not used Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de> Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01m68knommu: remove unused interrupts in FEC driverGreg Ungerer
Remove the acquisition of unused interrupt types. We don't need to register all the TX and RX varients used on some ColdFire FEC hardware. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01m68knommu: fix ColdFire 5272 fec driver hash registersGreg Ungerer
Renamed the 5272 hash_table registers to match the "grp" hash_table registers of the other ColdFire parts. They are actually a group hash. The makes for consistent setup across all ColdFire parts. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01m68knommu: fix compare race in sched related codeSebastian Siewior
The interrupts must be disabled before considering the need resched bit of the task struct and they have to be disabled before calling schedule() Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de> Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01m68knommu: rework definition of HZGreg Ungerer
Rework the HZ definition to be more consistent with other architectures. Non-kernel includers will see a constant HZ setting of 100. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01m68knommu: update MAX_M68K_DMA_CHANNELS for some plattformsSebastian Siewior
include/asm-m68knommu/mcfdma.h defines base0-3 for M523x, M527x and M528x so it looks this has been forgotten. Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de> Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01m68knommu: remove unused CONFIG_DISKtelGreg Ungerer
Remove unused CONFIG_DISKtel support. Missing config definition pointed out by Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01m68knommu: add WilFire and WildfireMod board supportSteve Bennett
This patch adds linux-2.6.x kernel support for the Intec Automation ColdFire 5282-based boards, the WildFire and WildFireMod Signed-Off-By: Steve Bennett <steveb@workware.net.au> Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01m68knommu: remove unused CONFIG_MTD_KeyTechnologyGreg Ungerer
Remove unused board type CONFIG_MTD_KeyTechnology. Pointed out by Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01m68knommu: fix 5206e UART init function namingGreg Ungerer
Fix ColdFire 5206e platform UART init function naming. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01m68knommu: add some missing sections into the linker scriptSebastian Siewior
Add some missing sections into the linker script. Those are required for spinlocks & kallsyms. Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de> Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01m68knommu: add pretty back straceSebastian Siewior
With this patch and CONFIG_FRAME_POINTER=y CONFIG_KALLSYMS=y The backtrace shows resolved function names and their numeric address. Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de> Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01m68knommu: add a missing backslash n in setup codeSebastian Siewior
add a missing backslash n in setup code Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de> Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01m68knommu: ColdFire add support for kernel preemptionSebastian Siewior
As the subject says this patch adds the support for kernel preemption on m68knommu Coldfire. I thing the same changes could be applied to 68360 & 68328 but since I don't have the HW for testing, I don't touch it. Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de> Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01m68knommu: fix signal handling return pathWilson Callan
The return from software signal handling pushes code on the stack that system calls to the kernels cleanup code. This is borrowed directly from the m68k linux signal handler. The rt signal case is not quite right for the restricted instruction set of the ColdFire parts. And neither the normal signal case or rt signal case properly flushes/pushes the appropriate cache lines. Rework the return path to just call back through some code fragments in the kernel proper (with no MMU in the way we can do this). No cache problems, and less code overall. Original patch submitted by Wilson Callan <wcallan@savantav.com> Greg fixed the rt signal return path to use the proper system call Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01drivers/scsi/mvsas.c: fix printk warningsAndrew Morton
drivers/scsi/mvsas.c: In function `mvs_update_phyinfo': drivers/scsi/mvsas.c:2822: warning: long long unsigned int format, u64 arg (arg 5) drivers/scsi/mvsas.c:2822: warning: long long unsigned int format, u64 arg (arg 6) We do not know what type the arch uses to implement u64. Cc: Ke Wei <kewei@marvell.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01drivers/scsi/ncr53c8xx.c: fix warningAndrew Morton
drivers/scsi/ncr53c8xx.c: In function 'process_waiting_list': drivers/scsi/ncr53c8xx.c:8225: warning: suggest parentheses around assignment used as truth value recently added by commit 172c122df5186e7cbd413d61757ff90267331002 Author: Harvey Harrison <harvey.harrison@gmail.com> Date: Mon Apr 28 16:50:03 2008 -0700 scsi: fix integer as NULL pointer warnings Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01drivers-char-synclinkc-inbreak-mgsl_put_char-fixAndrew Morton
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Jiri Slaby <jirislaby@gmail.com> Cc: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01drivers/char/synclink.c: unbreak mgsl_put_char()Andrew Morton
Repair the effects of commit 55da77899c1472d83452c914fa179d00ea96df65 Author: Alan Cox <alan@lxorguk.ukuu.org.uk> Date: Wed Apr 30 00:54:07 2008 -0700 synclink series: switch to int put_char method Signed-off-by: Alan Cox <alan@redhat.com> Cc: Paul Fulghum <paulkf@microgate.com> Cc: Jiri Slaby <jirislaby@gmail.com> drivers/char/synclink_gt.c: In function 'put_char': drivers/char/synclink_gt.c:919: warning: 'ret' may be used uninitialized in this function and do some whitespace repair and unneeded-cast-removal in there as well. Cc: Paul Fulghum <paulkf@microgate.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>