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2010-09-05[SCSI] qla2xxx: Fix vport delete issuesArun Easi7-36/+207
Signed-off-by: Giridhar Malavali <[email protected]> Signed-off-by: James Bottomley <[email protected]>
2010-09-05cgroups: fix API thinkoMichael S. Tsirkin2-5/+15
cgroup_attach_task_current_cg API that have upstream is backwards: we really need an API to attach to the cgroups from another process A to the current one. In our case (vhost), a priveledged user wants to attach it's task to cgroups from a less priveledged one, the API makes us run it in the other task's context, and this fails. So let's make the API generic and just pass in 'from' and 'to' tasks. Add an inline wrapper for cgroup_attach_task_current_cg to avoid breaking bisect. Signed-off-by: Michael S. Tsirkin <[email protected]> Acked-by: Li Zefan <[email protected]> Acked-by: Paul Menage <[email protected]>
2010-09-05gcc-4.6: kernel/*: Fix unused but set warningsAndi Kleen5-12/+3
No real bugs I believe, just some dead code. Signed-off-by: Andi Kleen <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: [email protected] Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2010-09-05x86, mcheck: Avoid duplicate sysfs links/files for thresholding banksAndreas Herrmann1-2/+2
kobject_add_internal failed for threshold_bank2 with -EEXIST, don't try to register things with the same name in the same directory: Pid: 1, comm: swapper Tainted: G W 2.6.31 #1 Call Trace: [<ffffffff81161b07>] ? kobject_add_internal+0x156/0x180 [<ffffffff81161cc0>] ? kobject_add+0x66/0x6b [<ffffffff81161793>] ? kobject_init+0x42/0x82 [<ffffffff81161cf9>] ? kobject_create_and_add+0x34/0x63 [<ffffffff81393963>] ? threshold_create_bank+0x14f/0x259 [<ffffffff8139310a>] ? mce_create_device+0x8d/0x1b8 [<ffffffff81646497>] ? threshold_init_device+0x3f/0x80 [<ffffffff81646458>] ? threshold_init_device+0x0/0x80 [<ffffffff81009050>] ? do_one_initcall+0x4f/0x143 [<ffffffff816413a0>] ? kernel_init+0x14c/0x1a2 [<ffffffff8100c8da>] ? child_rip+0xa/0x20 [<ffffffff81641254>] ? kernel_init+0x0/0x1a2 [<ffffffff8100c8d0>] ? child_rip+0x0/0x20 kobject_create_and_add: kobject_add error: -17 (Probably the for_each_cpu loop should be entirely removed.) Signed-off-by: Andreas Herrmann <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2010-09-05io-mapping: Fix the address space annotationsFrancisco Jerez1-12/+12
Fixes a bunch of sparse warnings in io-mapping.h because of the inconsistent __iomem usage. Signed-off-by: Francisco Jerez <[email protected]> LKML-Reference: <[email protected]> Cc: Andrew Morton <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2010-09-05x86: Fix the address space annotations of iomap_atomic_prot_pfn()Francisco Jerez2-5/+5
This patch fixes the sparse warnings when the return pointer of iomap_atomic_prot_pfn() is used as an argument of iowrite32() and friends. Signed-off-by: Francisco Jerez <[email protected]> LKML-Reference: <[email protected]> Cc: Andrew Morton <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2010-09-03Staging: wlan-ng: Explicitly set some fields in cfg80211 interfaceKarl Relton1-0/+3
The cfg80211 api has introduced a few new fields. Rather than assume what cfg80211 api does by default, set these explicitly. Signed-off-by: Karl Relton <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03Staging: octeon: depends on NETDEVICESRandy Dunlap1-1/+1
OCTEON_ETHERNET should depend on NETDEVICES. Fixes this kconfig warning: warning: (NET_DSA && NET && EXPERIMENTAL && NETDEVICES && !S390 || ... || OCTEON_ETHERNET && STAGING && !STAGING_EXCLUDE_BUILD && CPU_CAVIUM_OCTEON) selects PHYLIB which has unmet direct dependencies (!S390 && NETDEVICES) Reported-by: Arnaud Lacombe <[email protected]> Signed-off-by: Randy Dunlap <[email protected]> Cc: [email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03Staging: spectra: depend on X86_MRSTJeff Mahoney1-0/+1
lld_nand fails to build on arches without virt_to_bus. Since this driver is specifically for hardware enablment on Moorestown, this patch adds Moorestown MID support as a dependency. Signed-off-by: Jeff Mahoney <[email protected]> Cc: David Woodhouse <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03Staging: zram: free device memory when init failsShahar Havivi1-0/+1
Signed-off-by: Shahar Havivi <[email protected]> Cc: Nitin Gupta <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03Staging: rt2870sta: Add more device IDs from vendor driversBen Hutchings1-2/+39
Taken from DPO_RT3070_LinuxSTA_V2.3.0.4_20100604.tar.bz2 and 2010_0709_RT2870_Linux_STA_v2.4.0.1.tar.bz2, with duplicates removed. Signed-off-by: Ben Hutchings <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03staging: comedi das08_cs.c: Fix io_req_t conversionAndreas Bombe1-1/+0
Commit 90abdc3b9 converted all PCMCIA users away from io_req_t. In das08_cs.c the converted IO lines mask setting was added but the old line using the now inexistent p_dev->io was not removed. Signed-off-by: Andreas Bombe <[email protected]> Signed-off-by: Dominik Brodowski <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03staging: spectra needs <linux/slab.h>Geert Uytterhoeven1-0/+1
On one of my m68k test builds I get: drivers/staging/spectra/ffsport.c: In function ‘ioctl_read_page_data’: drivers/staging/spectra/ffsport.c:196: error: implicit declaration of function ‘kmalloc’ drivers/staging/spectra/ffsport.c:196: warning: assignment makes pointer from integer without a cast drivers/staging/spectra/ffsport.c:212: error: implicit declaration of function ‘kfree’ drivers/staging/spectra/ffsport.c: In function ‘ioctl_write_page_data’: drivers/staging/spectra/ffsport.c:229: warning: assignment makes pointer from integer without a cast drivers/staging/spectra/ffsport.c: In function ‘SBD_setup_device’: drivers/staging/spectra/ffsport.c:637: warning: assignment makes pointer from integer without a cast Signed-off-by: Geert Uytterhoeven <[email protected]> Acked-by: Pekka Enberg <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03staging: hv: Fixed lockup problem with bounce_buffer scatter listHank Janssen1-2/+5
Fixed lockup problem with bounce_buffer scatter list which caused crashes in heavy loads. And minor code indentation cleanup in effected area. Removed whitespace and noted minor indentation changes in description as pointed out by Joe Perches. (Thanks for reviewing Joe) Signed-off-by: Hank Janssen <[email protected]> Signed-off-by: Haiyang Zhang <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03staging: hv: Increased storvsc ringbuffer and max_io_requestsHank Janssen1-2/+2
Increased storvsc ringbuffer and max_io_requests. This now more closely mimics the numbers on Hyper-V. And will allow more IO requests to take place for the SCSI driver. Max_IO is set to double from what it was before, Hyper-V allows it and we have had appliance builder requests to see if it was a problem to increase the number. Ringbuffer size for storvsc is now increased because I have seen A few buffer problems on extremely busy systems. They were Set pretty low before. And since max_io_requests is increased I Really needed to increase the buffer as well. Signed-off-by:Hank Janssen <[email protected]> Signed-off-by:Haiyang Zhang <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03staging: hv: Fixed the value of the 64bit-hole inside ring bufferHaiyang Zhang1-2/+1
Fixed the value of the 64bit-hole inside ring buffer, this caused a problem on Hyper-V when running checked Windows builds. Checked builds of Windows are used internally and given to external system integrators at times. They are builds that for example that all elements in a structure follow the definition of that Structure. The bug this fixed was for a field that we did not fill in at all (Because we do Not use it on the Linux side), and the checked build of windows gives errors on it internally to the Windows logs. This fixes that error. Signed-off-by:Hank Janssen <[email protected]> Signed-off-by:Haiyang Zhang <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03staging: hv: Fixed bounce kmap problem by using correct indexHank Janssen1-2/+2
Fixed bounce offset kmap problem by using correct index. The symptom of the problem is that in some NAS appliances this problem represents Itself by a unresponsive VM under a load with many clients writing small files. Signed-off-by:Hank Janssen <[email protected]> Signed-off-by:Haiyang Zhang <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03staging: hv: Fix missing functions for net_device_opsHaiyang Zhang1-0/+3
Fix missing functions for net_device_ops. It's a bug when porting the drivers from 2.6.27 to 2.6.32. In 2.6.27, the default functions for Ethernet, like eth_change_mtu(), were assigned by ether_setup(). But in 2.6.32, these function pointers moved to net_device_ops structure and no longer be assigned in ether_setup(). So we need to set these functions in our driver code. It will ensure the MTU won't be set beyond 1500. Otherwise, this can cause an error on the server side, because the HyperV linux driver doesn't support jumbo frame yet. Signed-off-by: Haiyang Zhang <[email protected]> Signed-off-by: Hank Janssen <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03USB: ftdi_sio: Added custom PIDs for ChamSys productsLuke Lowrey2-0/+20
Added the 0xDAF8 to 0xDAFF PID range for ChamSys limited USB interface/wing products Signed-off-by: Luke Lowrey <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03USB: cdc-acm: Fixing crash when ACM probing interfaces with no endpoint ↵Toby Gray1-1/+2
descriptors. Certain USB devices, such as the Nokia X6 mobile phone, don't expose any endpoint descriptors on some of their interfaces. If the ACM driver is forced to probe all interfaces on a device the a NULL pointer dereference will occur when the ACM driver attempts to use the endpoint of the alternative settings. One way to get the ACM driver to probe all the interfaces is by using the /sys/bus/usb/drivers/cdc_acm/new_id interface. This patch checks that the endpoint pointer for the current alternate settings is non-NULL before using it. Signed-off-by: Toby Gray <[email protected]> Cc: Oliver Neukum <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03USB: cdc-acm: Add pseudo modem without AT command capabilitiesPhilippe Corbes1-0/+4
cdc-acm.c : Manage pseudo-modem without AT commands capabilities Enable to drive electronic simple gadgets based on microcontrolers. The Interface descriptor is like this: bInterfaceClass 2 Communications bInterfaceSubClass 2 Abstract (modem) bInterfaceProtocol 0 None Signed-off-by: Philippe Corbes <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03USB: cxacru: Use a bulk/int URB to access the command endpointSimon Arlott1-2/+22
The command endpoint is either a bulk or interrupt endpoint, but using the wrong type of transfer causes an error if CONFIG_USB_DEBUG is enabled after commit f661c6f8c67bd55e93348f160d590ff9edf08904, which checks for this mismatch. Detect which type of endpoint it is and use a bulk/int URB as appropriate. There are other function calls specifying a bulk pipe, but usb_clear_halt doesn't use the pipe type (only the endpoint) and usb_bulk_msg auto-detects interrupt transfers. Signed-off-by: Simon Arlott <[email protected]> Cc: stable <[email protected]> [.34 and newer] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03usb: serial: mos7840: Add USB IDs to support more B&B USB/RS485 converters.Dave Ludlow1-13/+22
Add the USB IDs needed to support the B&B USOPTL4-4P, USO9ML2-2P, and USO9ML2-4P. This patch expands and corrects a typo in the patch sent on 08-31-2010. Signed-off-by: Dave Ludlow <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03USB: cdc-acm: Adding second ACM channel support for various Nokia and one ↵Toby Gray1-0/+16
Samsung phones S60 phones from Nokia and Samsung expose two ACM channels. The first is a modem with a standard AT-command interface, which is picked up correctly by CDC-ACM. The second ACM port is marked as having a vendor-specific protocol. This means that the ACM driver will not claim the second channel by default. This adds support for the second ACM channel for the following devices: Nokia E63 Nokia E75 Nokia 6760 Slide Nokia E52 Nokia E55 Nokia E72 Nokia X6 Nokia N97 Mini Nokia 5800 Xpressmusic Nokia E90 Samsung GTi8510 (INNOV8) Signed-off-by: Toby Gray <[email protected]> Cc: Oliver Neukum <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03usb: serial: mos7840: Add USB ID to support the B&B Electronics USOPTL4-2P.Dave Ludlow1-0/+3
Add the USB ID needed to support B&B Electronic's 2-port, optically-isolated, powered, USB to RS485 converter. Signed-off-by: Dave Ludlow <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03USB: ssu100: turn off debug flagBill Pemberton1-1/+1
Remove the hard coding of the debug flag to 1. Signed-off-by: Bill Pemberton <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03usb: allow drivers to use allocated bandwidth until unboundThadeu Lima de Souza Cascardo1-11/+11
When using the remove sysfs file, the device configuration is set to -1 (unconfigured). This eventually unbind drivers with the bandwidth_mutex held. Some drivers may call functions that hold said mutex, like usb_reset_device. This is the case for rtl8187, for example. This will lead to the same process holding the mutex twice, which deadlocks. Besides, according to Alan Stern: "The deadlock problem probably could be handled somehow, but there's a separate issue: Until the usb_disable_device call finishes unbinding the drivers, the drivers are free to continue using their allocated bandwidth. We musn't change the bandwidth allocations until after the unbinding is done. So this patch is indeed necessary." Unbinding the driver before holding the bandwidth_mutex solves the problem. If any operation after that fails, drivers are not bound again. But that would be a problem anyway that the user may solve resetting the device configuration to one that works, just like he would need to do in most other failure cases. Signed-off-by: Thadeu Lima de Souza Cascardo <[email protected]> Cc: Alan Stern <[email protected]> Cc: Sarah Sharp <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03USB: cp210x usb driver: add USB_DEVICE for Pirelli DP-L10 mobile.A E Lawrence1-0/+1
The Pirelli DP-L10 mobile is sold under various brand names. One, already supported by cp210x, is the T-COM TC300. Here is the lsusb for that version: ------------------------------------------------------------------- Bus 001 Device 002: ID 0489:e000 Foxconn / Hon Hai T-Com TC 300 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x0489 Foxconn / Hon Hai idProduct 0xe000 T-Com TC 300 bcdDevice 1.00 iManufacturer 1 Silicon Labs iProduct 2 TC 300 iSerial 3 0001 [snip] --------------------------------------------------------------------------- However the native Pirelli DP-L10 is not supported: ------------------------------------------------------------------ Bus 001 Device 003: ID 0489:e003 Foxconn / Hon Hai Pirelli DP-L10 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x0489 Foxconn / Hon Hai idProduct 0xe003 Pirelli DP-L10 bcdDevice 1.00 iManufacturer 1 Silicon Labs iProduct 2 DP-L10 iSerial 3 0001 [snip] ------------------------------------------------------------------------- All that is required is an extra USB_DEVICE entry: { USB_DEVICE(0x0489, 0xE003) }, /* Pirelli Broadband S.p.A, DP-L10 SIP/GSM +Mobile */ The patch adds that entry. Tested under 2.6.36-rc2 from git. Signed-off-by: A E Lawrence <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03USB: cp210x: Add B&G H3000 link cable IDJason Detring1-0/+1
This is the cable between an H3000 navigation unit and a multi-function display. http://www.bandg.com/en/Products/H3000/Spares-and-Accessories/Cables/H3000-CPU-USB-Cable-Pack/ Signed-off-by: Jason Detring <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03USB: CP210x Add new device IDCraig Shelley1-4/+5
New device ID added for Balluff RFID reader. Signed-off-by: Craig Shelley <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03USB: option: fix incorrect novatel entriesDirk De Schepper1-44/+75
Unfortunately some of the hardware PID belonging to auto-install CDROM (AICD) of Novatel modems found their way into the option module. This causes the AICD to be treated as a modem in stead of a disk. Since the modem ports do not appear until after the AICD is ejected, this essentially disables the modem. After a couple of minutes the AICD should auto-eject, but it is just too long a wait. The frequency of the failure seems to depend on both the hardware and the linux distribution. Here is a patch that fixes this up, and also adds a couple of new PID, offering some explanations and removing some incomplete and unnecessary comments. Signed-off-by: Dirk De Schepper <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03USB: Fix kernel oops with g_ether and WindowsMaxim Osipov1-3/+7
Please find attached patch for https://bugzilla.kernel.org/show_bug.cgi?id=16023 problem. Signed-off-by: Maxim Osipov <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03USB: rndis: section mismatch fixHenrik Kretzschmar2-2/+2
This patch removes the following section mismatch warning, by moving the function rndis_init() from .init.text to .text. WARNING: vmlinux.o(.text+0x1aeca5a): Section mismatch in reference from the function rndis_bind_config() to the function .init.text:rndis_init() The function rndis_bind_config() references the function __init rndis_init(). This is often because rndis_bind_config lacks a __init annotation or the annotation of rndis_init is wrong. Signed-off-by: Henrik Kretzschmar <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03USB: ehci-ppc-of: problems in unwindDan Carpenter1-5/+7
The iounmap(ehci->ohci_hcctrl_reg); should be the first thing we do because the ioremap() was the last thing we did. Also if we hit any of the goto statements in the original code then it would have led to a NULL dereference of "ehci". This bug was introduced in: 796bcae7361c "USB: powerpc: Workaround for the PPC440EPX USBH_23 errata [take 3]" I modified the few lines in front a little so that my code didn't obscure the return success code path. Signed-off-by: Dan Carpenter <[email protected]> Reviewed-by: Grant Likely <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03USB: s3c-hsotg: Remove DEBUG defineMaurus Cuelenaere1-2/+0
DEBUG is defined unconditionally, remove it as this clutters the message log. Signed-off-by: Maurus Cuelenaere <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03tty: fix tty_line must not be equal to number of allocated tty pointers in ↵Nathael Pajani1-1/+1
tty driver I found a bug "by chance" in drivers/char/tty_io.c I mean "by chance" because I was just reading the code of the tty_find_polling_driver() to make a new tty_find_by_name() function. In tty_find_polling_driver() the driver actually test "tty_line <= p->num" while num refers to the number of struct tty_struct pointers allocated for the p->ttys (p is a tty_driver), and tty_line is scanned in a tty name, which can be for example ttyS2. Then tty_line equals 2. And if p->num is 2, we have only p->ttys[0] and p->ttys[1], but no p->ttys[2]. This is actually unharmful, for tty_find_polling_driver() is used only in drivers/serial/kgdboc.c, and there's a test over there to find a console with a matching index, which will never happen. This is still a bug anyway. Signed-off-by: Nathael Pajani <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03serial: bfin_sport_uart: restore transmit frame sync fixSonic Zhang1-1/+1
The large cleanup/rewrite of resources in commit ccf68e59e93181df9353c0cc accidentally reverted an earlier fix in commit a19e8b205915b2925aca75b. So restore it here. Signed-off-by: Sonic Zhang <[email protected]> Signed-off-by: Mike Frysinger <[email protected]> Cc: stable <[email protected]> [.34 and newer] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03serial: fix port type conflict between NS16550A & U6_16550APhilippe Langlais2-3/+3
Bug seen by Dr. David Alan Gilbert with sparse Signed-off-by: Philippe Langlais <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03MAINTAINERS: orphan isicomJiri Slaby1-2/+1
I do not maintain isicom anymore... Signed-off-by: Jiri Slaby <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03vt: Fix console corruption on driver hand-over.Francisco Jerez1-11/+4
After 02f0777a0d6560eb995aade34a1b82f95c0452da "vc_origin" is no longer reset to the screen buffer before calling the con_init() hook of the new console driver. If the old driver wasn't using a fixed scanout buffer (e.g. the case of vgacon) "vc_origin" may be a pointer to a VRAM location, and its contents aren't guaranteed to be preserved after calling con_deinit() on the old driver and con_init() on the new driver, i.e. the subsequent console resize may fill the framebuffer with garbage. It can be reproduced in the transition from vgacon to the nouveau framebuffer driver: in that case the legacy VGA aperture "vc_origin" points to becomes unreadable after fbcon_init(). This patch reverts the mentioned commit. To avoid the problem it intended to fix, stop using "vc_scr_end" in vc_do_resize() to calculate how many rows we have to copy (actually the code looks simpler this way without the help of "vc_scr_end"). Signed-off-by: Francisco Jerez <[email protected]> Cc: qiaochong <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Alan Cox <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03sysfs: checking for NULL instead of ERR_PTRDan Carpenter1-1/+1
d_path() returns an ERR_PTR and it doesn't return NULL. Signed-off-by: Dan Carpenter <[email protected]> Cc: stable <[email protected]> Reviewed-by: "Eric W. Biederman" <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-03ALSA: usb-audio: fix detection of vendor-specific device protocol settingsClemens Ladisch6-26/+32
The Audio Class v2 support code in 2.6.35 added checks for the bInterfaceProtocol field. However, there are devices (usually those detected by vendor-specific quirks) that do not have one of the predefined values in this field, which made the driver reject them. To fix this regression, restore the old behaviour, i.e., assume that a device with an unknown bInterfaceProtocol field (other than UAC_VERSION_2) has more or less UAC-v1-compatible descriptors. [compile warning fixes by tiwai] Signed-off-by: Clemens Ladisch <[email protected]> Cc: Daniel Mack <[email protected]> Cc: <[email protected]> Signed-off-by: Takashi Iwai <[email protected]>
2010-09-03cls_cgroup: Fix rcu lockdep warningLi Zefan1-2/+8
Dave reported an rcu lockdep warning on 2.6.35.4 kernel task->cgroups and task->cgroups->subsys[i] are protected by RCU. So we avoid accessing invalid pointers here. This might happen, for example, when you are deref-ing those pointers while someone move @task from one cgroup to another. Reported-by: Dave Jones <[email protected]> Signed-off-by: Li Zefan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-09-03be2net: remove a BUG_ON in be_cmds.cAjit Khaparde1-4/+2
Async notifications other than link status are possible in certain configurations. Remove the BUG_ON in the mcc completion processing path. Signed-off-by: Ajit Khaparde <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-09-03be2net: fix a bug in UE detection logicAjit Khaparde3-26/+10
The ONLINE registers can return 0xFFFFFFFF on more than one occassion. On systems that care, reading these registers could lead to problems. So the new code decides that the ASIC has encountered and error by reading the UE_STATUS_LOW/HIGH registers. AND them with the mask values and a non-zero result indicates an error. Signed-off-by: Ajit Khaparde <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-09-03be2net: fix net-snmp error because of wrong packet statsAjit Khaparde4-6/+18
Wrong packet statistics for multicast Rx was causing net-snmp error messages every 15 seconds. Instead of picking the multicast stats from hardware, now maintain it in the driver itself. Signed-off-by: Ajit Khaparde <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-09-03Merge branch '2.6.36-xfs-misc' of ↵Alex Elder3-11/+11
git://git.kernel.org/pub/scm/linux/kernel/git/dgc/xfsdev
2010-09-03xfs: Make fiemap work with sparse filesTao Ma3-3/+17
In xfs_vn_fiemap, we set bvm_count to fi_extent_max + 1 and want to return fi_extent_max extents, but actually it won't work for a sparse file. The reason is that in xfs_getbmap we will calculate holes and set it in 'out', while out is malloced by bmv_count(fi_extent_max+1) which didn't consider holes. So in the worst case, if 'out' vector looks like [hole, extent, hole, extent, hole, ... hole, extent, hole], we will only return half of fi_extent_max extents. This patch add a new parameter BMV_IF_NO_HOLES for bvm_iflags. So with this flags, we don't use our 'out' in xfs_getbmap for a hole. The solution is a bit ugly by just don't increasing index of 'out' vector. I felt that it is not easy to skip it at the very beginning since we have the complicated check and some function like xfs_getbmapx_fix_eof_hole to adjust 'out'. Cc: Dave Chinner <[email protected]> Signed-off-by: Tao Ma <[email protected]> Signed-off-by: Alex Elder <[email protected]>
2010-09-03mutex: Fix annotations to include it in kernel-locking docbookRandy Dunlap4-17/+23
Fix kernel-doc notation in linux/mutex.h and kernel/mutex.c, then add these 2 files to the kernel-locking docbook as the Mutex API reference chapter. Add one API function to mutex-design.txt and correct a typo in that file. Signed-off-by: Randy Dunlap <[email protected]> Cc: Rusty Russell <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2010-09-03perf, x86: Try to handle unknown nmis with an enabled PMURobert Richter1-13/+46
When the PMU is enabled it is valid to have unhandled nmis, two events could trigger 'simultaneously' raising two back-to-back NMIs. If the first NMI handles both, the latter will be empty and daze the CPU. The solution to avoid an 'unknown nmi' massage in this case was simply to stop the nmi handler chain when the PMU is enabled by stating the nmi was handled. This has the drawback that a) we can not detect unknown nmis anymore, and b) subsequent nmi handlers are not called. This patch addresses this. Now, we check this unknown NMI if it could be a PMU back-to-back NMI. Otherwise we pass it and let the kernel handle the unknown nmi. This is a debug log: cpu #6, nmi #32333, skip_nmi #32330, handled = 1, time = 1934364430 cpu #6, nmi #32334, skip_nmi #32330, handled = 1, time = 1934704616 cpu #6, nmi #32335, skip_nmi #32336, handled = 2, time = 1936032320 cpu #6, nmi #32336, skip_nmi #32336, handled = 0, time = 1936034139 cpu #6, nmi #32337, skip_nmi #32336, handled = 1, time = 1936120100 cpu #6, nmi #32338, skip_nmi #32336, handled = 1, time = 1936404607 cpu #6, nmi #32339, skip_nmi #32336, handled = 1, time = 1937983416 cpu #6, nmi #32340, skip_nmi #32341, handled = 2, time = 1938201032 cpu #6, nmi #32341, skip_nmi #32341, handled = 0, time = 1938202830 cpu #6, nmi #32342, skip_nmi #32341, handled = 1, time = 1938443743 cpu #6, nmi #32343, skip_nmi #32341, handled = 1, time = 1939956552 cpu #6, nmi #32344, skip_nmi #32341, handled = 1, time = 1940073224 cpu #6, nmi #32345, skip_nmi #32341, handled = 1, time = 1940485677 cpu #6, nmi #32346, skip_nmi #32347, handled = 2, time = 1941947772 cpu #6, nmi #32347, skip_nmi #32347, handled = 1, time = 1941949818 cpu #6, nmi #32348, skip_nmi #32347, handled = 0, time = 1941951591 Uhhuh. NMI received for unknown reason 00 on CPU 6. Do you have a strange power saving mode enabled? Dazed and confused, but trying to continue Deltas: nmi #32334 340186 nmi #32335 1327704 nmi #32336 1819 <<<< back-to-back nmi [1] nmi #32337 85961 nmi #32338 284507 nmi #32339 1578809 nmi #32340 217616 nmi #32341 1798 <<<< back-to-back nmi [2] nmi #32342 240913 nmi #32343 1512809 nmi #32344 116672 nmi #32345 412453 nmi #32346 1462095 <<<< 1st nmi (standard) handling 2 counters nmi #32347 2046 <<<< 2nd nmi (back-to-back) handling one counter nmi #32348 1773 <<<< 3rd nmi (back-to-back) handling no counter! [3] For back-to-back nmi detection there are the following rules: The PMU nmi handler was handling more than one counter and no counter was handled in the subsequent nmi (see [1] and [2] above). There is another case if there are two subsequent back-to-back nmis [3]. The 2nd is detected as back-to-back because the first handled more than one counter. If the second handles one counter and the 3rd handles nothing, we drop the 3rd nmi because it could be a back-to-back nmi. Signed-off-by: Robert Richter <[email protected]> Signed-off-by: Peter Zijlstra <[email protected]> [ renamed nmi variable to pmu_nmi to avoid clash with .nmi in entry.S ] Signed-off-by: Don Zickus <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
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