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2011-06-03libertas_sdio: handle spurious interruptsDaniel Drake
Commit 06e8935febe687e2a561707d4c7ca4245d261dbe adds an IRQ handling optimization for single-function SDIO cards like this one, but at the same time exposes a small hardware bug. During hardware init, an interrupt is generated with (apparently) no source. Previously, mmc threw this interrupt away, but now (due to the optimization), the mmc layer passes this onto libertas, before it is ready (and before it has enabled interrupts), causing a crash. Work around this hardware bug by registering the IRQ handler later and making it capable of handling interrupts with no cause. The change that makes the IRQ handler registration happen later actually eliminates the spurious interrupt as well. Signed-off-by: Daniel Drake <dsd@laptop.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-03mac80211: call dev_alloc_name before copying name to sdataThadeu Lima de Souza Cascardo
This partially reverts 1c5cae815d19ffe02bdfda1260949ef2b1806171, because the netdev name is copied into sdata->name, which is used for debugging messages, for example. Otherwise, we get messages like this: wlan%d: authenticated Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Cc: Jiri Pirko <jpirko@redhat.com> Cc: David S. Miller <davem@davemloft.net> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: "John W. Linville" <linville@tuxdriver.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-03iwlagn: fix channel switch lockingStanislaw Gruszka
We use priv->mutex to avoid race conditions between iwl_chswitch_done() and iwlagn_mac_channel_switch(), when marking channel switch in progress. But iwl_chswitch_done() can be called in atomic context from iwl_rx_csa() or with mutex already taken from iwlagn_commit_rxon(). These bugs were introduced by: commit 79d07325502e73508f917475bc1617b60979dd94 Author: Wey-Yi Guy <wey-yi.w.guy@intel.com> Date: Thu May 6 08:54:11 2010 -0700 iwlwifi: support channel switch offload in driver To fix remove mutex from iwl_chswitch_done() and use atomic bitops for marking channel switch pending. Also remove iwl2030_hw_channel_switch() since 2000 series adapters are 2.4GHz only devices. Cc: stable@kernel.org # 2.6.36+ Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-03ath5k: Disable fast channel switching by defaultNick Kossifidis
Disable fast channel change by default on AR2413/AR5413 due to some bug reports (it still works for me but it's better to be safe). Add a module parameter "fastchanswitch" in case anyone wants to enable it and play with it. Signed-off-by: Nick Kossifidis <mickflemm@gmail.com> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-03ssb: fix PCI(e) driver regression causing oops on PCI cardsRafał Miłecki
We were incorrectly executing PCIe specific workarounds on PCI cards. This resulted in: Machine check in kernel mode. Caused by (from SRR1=149030): Transfer error ack signal Oops: Machine check, sig: 7 [#1] Reported-by: Andreas Schwab <schwab@linux-m68k.org> Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-03cifs: make CIFS depend on CRYPTO_ECBSuresh Jayaraman
When CONFIG_CRYPTO_ECB is not set, trying to mount a CIFS share with NTLM security resulted in mount failure with the following error: "CIFS VFS: could not allocate des crypto API" Seems like a leftover from commit 43988d7. Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de> CC: Shirish Pargaonkar <shirishpargaonkar@gmail.com> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2011-06-03SLAB: Record actual last user of freed objects.Suleiman Souhlal
Currently, when using CONFIG_DEBUG_SLAB, we put in kfree() or kmem_cache_free() as the last user of free objects, which is not very useful, so change it to the caller of those functions instead. Acked-by: David Rientjes <rientjes@google.com> Acked-by: Christoph Lameter <cl@linux.com> Signed-off-by: Suleiman Souhlal <suleiman@google.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
2011-06-03slub: always align cpu_slab to honor cmpxchg_double requirementChris Metcalf
On an architecture without CMPXCHG_LOCAL but with DEBUG_VM enabled, the VM_BUG_ON() in __pcpu_double_call_return_bool() will cause an early panic during boot unless we always align cpu_slab properly. In principle we could remove the alignment-testing VM_BUG_ON() for architectures that don't have CMPXCHG_LOCAL, but leaving it in means that new code will tend not to break x86 even if it is introduced on another platform, and it's low cost to require alignment. Acked-by: David Rientjes <rientjes@google.com> Acked-by: Christoph Lameter <cl@linux.com> Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
2011-06-03ALSA: usb - turn off de-emphasis in s/pdif for cm6206Eric Lammerts
CM6206: Turn off de-emphasis channel status bit in S/PDIF output. Signed-off-by: Eric Lammerts <eric@lammerts.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-06-03cifs: fix the kernel release version in the default security warning messageSuresh Jayaraman
When ntlm security mechanim is used, the message that warns about the upgrade to ntlmv2 got the kernel release version wrong (Blame it on Linus :). Fix it. Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2011-06-03UBIFS: fix-up free space earlierBen Gardiner
The free space fixup is currently initiated during mount after the call to ubifs_write_master() which results in a write to PEBs; this has been observed with the patch 'assert no fixup when writing a node' applied: Move the free space fixup on mount to before the calls to ubifs_recover_inl_heads() and ubifs_write_master(). This results in no assertions with the previously mentioned patch applied. Artem: tweaked the patch a bit Signed-off-by: Ben Gardiner <bengardiner@nanometrics> Reviewed-by: Matthew L. Creech <mlcreech@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-06-03UBIFS: intialize LPT earlierBen Gardiner
The current 'mount_ubifs()' implementation does not initialize the LPT until the the master node is marked dirty. Move the LPT initialization to before marking the master node dirty. This is a preparation for the next patch which will move the free-space-fixup check to before marking the master node dirty, because we have to fix-up the free space before doing any writes. Artem: massaged the patch and commit message. Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca> Reviewed-by: Matthew L. Creech <mlcreech@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-06-03UBIFS: assert no fixup when writing a nodeBen Gardiner
The current free space fixup can result in some writing to the UBI volume when the space_fixup flag is set. To catch instances where UBIFS is writing to the NAND while the space_fixup flag is set, add an assert to ubifs_write_node(). Artem: tweaked the patch, added similar assertion to the write buffer write path. Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca> Reviewed-by: Matthew L. Creech <mlcreech@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-06-03UBIFS: fix clean znode counter corruption in error casesArtem Bityutskiy
UBIFS maintains per-filesystem and global clean znode counters ('c->clean_zn_cnt' and 'ubifs_clean_zn_cnt'). It is important to maintain correct values there since the shrinker relies on 'ubifs_clean_zn_cnt'. However, in case of failures during commit the counters were corrupted. E.g., if a failure happens in the middle of 'write_index()', then some nodes in the commit list ('c->cnext') are marked as clean, and some are marked as dirty. And the 'ubifs_destroy_tnc_subtree()' frees does not retrun correct count, and we end up with non-zero 'c->clean_zn_cnt' when unmounting. This means that if we have 2 file-sytem and one of them fails, and we unmount it, 'ubifs_clean_zn_cnt' stays incorrect and confuses the shrinker. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-06-03UBIFS: fix memory leak on error pathArtem Bityutskiy
UBIFS leaks memory on error path in 'ubifs_jnl_update()' in case of write failure because it forgets to free the 'struct ubifs_dent_node *dent' object. Although the object is small, the alignment can make it large - e.g., 2KiB if the min. I/O unit is 2KiB. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Cc: stable@kernel.org
2011-06-03UBIFS: fix shrinker object count reportsArtem Bityutskiy
Sometimes VM asks the shrinker to return amount of objects it can shrink, and we return the ubifs_clean_zn_cnt in that case. However, it is possible that this counter is negative for a short period of time, due to the way UBIFS TNC code updates it. And I can observe the following warnings sometimes: shrink_slab: ubifs_shrinker+0x0/0x2b7 [ubifs] negative objects to delete nr=-8541616642706119788 This patch makes sure UBIFS never returns negative count of objects. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Cc: stable@kernel.org
2011-06-03Blackfin: strncpy: fix handling of zero lengthsSteven Miao
The jump to 4f will cause the NUL padding loop to run at least one time, so if string length is zero just jump to the end. Otherwise we wrongly write one NUL byte when size==0. Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-06-03perf python: Fix argument name list of read_on_cpu()Frederic Weisbecker
Mandatory arguments need to be present in the argument name list, as well as optional arguments, otherwise python barfs: # ./python/twatch.py Traceback (most recent call last): File "./python/twatch.py", line 41, in <module> main() File "./python/twatch.py", line 32, in main event = evlist.read_on_cpu(cpu) RuntimeError: more argument specifiers than keyword list entries Hence, add cpu to the name list. Cc: David Ahern <daahern@cisco.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> Link: http://lkml.kernel.org/r/1301588863-20210-1-git-send-email-fweisbec@gmail.com Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-06-03perf evlist: Don't die if sample_{id_all|type} is invalidArnaldo Carvalho de Melo
Fixes two more cases where the python binding would not load: . Not finding die(), which it shouldn't anyway, not good to just stop the world because some particular perf.data file is invalid, just propagate the error to the caller. . Not finding perf_sample_size: fix it by moving it from event.c to evsel, where it belongs, as most cases are moving to operate on an evsel object.o One of the fixed problems: [root@emilia ~]# python >>> import perf Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: /home/acme/git/build/perf/python/perf.so: undefined symbol: perf_sample_size >>> [root@emilia ~]# Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1hkj7b2cvgbfnoizsekjb6c9@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-06-03perf python: Use exception to propagate errorsArnaldo Carvalho de Melo
We were using pr_debug to tell the user about not being able to parse a sample where we should really use the python way of reporting errors: exceptions. Fixes this problem: [root@emilia ~]# python >>> import perf Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: /home/acme/git/build/perf/python/perf.so: undefined symbol: eprintf >>> [root@emilia ~] As we want to keep the objects linked in the python binding (and in the future in a shared library) minimal. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-m9dba9kaluas0kq8r58z191c@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-06-03perf evlist: Remove dependency on debug routinesArnaldo Carvalho de Melo
So far we avoided having to link debug.o in the python binding, keep it that way by not using ui__warning() in evlist.c. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-4wtew8hd3g7ejnlehtspys2t@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-06-03timers: Consider slack value in mod_timer()Sebastian Andrzej Siewior
There is an optimization which does not update the timer if the timer was pending and the expiration time was unchanged. Since commit 3bbb9ec9 ("timers: Introduce the concept of timer slack for legacy timers") this optimization is no longer applied for timers where the expiration time got extended due to the slack value. So we need to check again after the expiration time might have been updated. [ tglx: Made it a single check by applying slack first and sorting out the slack = 0 value (all timeouts < 256 jiffies) early ] Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Link: http://lkml.kernel.org/r/20110521105828.GA29442@Chamillionaire.breakpoint.cc Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-06-03genirq: Ensure we locate the passed IRQ in irq_alloc_descs()Mark Brown
When irq_alloc_descs() is called with no base IRQ specified then it will search for a range of IRQs starting from a specified base address. In the case where an IRQ is specified it still does this search in order to ensure that none of the requested range is already allocated and it still uses the from parameter to specify the base for the search. This means that in the case where a base is specified but from is zero (which is reasonable as any IRQ number is in the range specified by a zero from) the function will get confused and try to allocate the first suitably sized block of free IRQs it finds. Instead use a specified IRQ as the base address for the search, and insist that any from that is specified can support that IRQ. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Link: http://lkml.kernel.org/r/1307037313-15733-1-git-send-email-broonie@opensource.wolfsonmicro.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-06-03genirq: Fix descriptor init on non-sparse IRQsLinus Walleij
The genirq changes are initializing descriptors for sparse IRQs quite differently from how non-sparse (stacked?) IRQs are initialized, with the effect that on my platform all IRQs are default-disabled on sparse IRQs and default-enabled if non-sparse IRQs are used, crashing some GPIO driver. Fix this by refactoring the non-sparse IRQs to use the same descriptor init function as the sparse IRQs. Signed-off: Linus Walleij <linus.walleij@linaro.org> Link: http://lkml.kernel.org/r/1306858479-16622-1-git-send-email-linus.walleij@stericsson.com Cc: stable@kernel.org # 2.6.39 Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-06-03irq: Handle spurios irq detection for threaded irqsSebastian Andrzej Siewior
The detection of spurios interrupts is currently limited to first level handler. In force-threaded mode we never notice if the threaded irq does not feel responsible. This patch catches the return value of the threaded handler and forwards it to the spurious detector. If the primary handler returns only IRQ_WAKE_THREAD then the spourious detector ignores it because it gets called again from the threaded handler. [ tglx: Report the erroneous return value early and bail out ] Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Link: http://lkml.kernel.org/r/1306824972-27067-2-git-send-email-sebastian@breakpoint.cc Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-06-03genirq: Print threaded handler in spurious debug outputSebastian Andrzej Siewior
In forced threaded mode (or with an explicit threaded handler) we only see the primary handler, but not the threaded handler. Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Link: http://lkml.kernel.org/r/1306824972-27067-1-git-send-email-sebastian@breakpoint.cc Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-06-03ALSA: asihpi: Use angle brackets for system includesJoe Perches
Use the normal include style. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-06-03clockevents: Handle empty cpumask gracefullyThomas Gleixner
For UP it's stupid to request an initialized cpumask for the clock event devices. Though we need the mask set even on UP to avoid a horrible ifdeffery especially in the broadcast code. For SMP we can at least try to survive with a warning and set the cpumask of the cpu we're running on. That gives a decent chance to bring the machine up and retrieve the debug info. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Linus Walleij <linus.walleij@linaro.org Cc: Lee Jones <lee.jones@linaro.org> Cc: Russell King - ARM Linux <linux@arm.linux.org.uk> Cc: Stephen Boyd <sboyd@codeaurora.org>
2011-06-03ASoC: atmel_ssc: Don't try to free ssc if request failedJoachim Eastwood
We should only call ssc_free() when ssc_request() succeeds or bad things will happen. Signed-off-by: Joachim Eastwood <joachim.eastwood@jotron.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-06-03ALSA: fm801: add error handling if auto-detect failsDan Carpenter
In the original code if auto detect failed and tea575x_tuner == 4 then we copy bogus information to chip->tea.card. I've changed the autodetect code to cleanup and return -ENODEV on error instead. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-06-03ALSA: hda - Check pin support EAPD in ad198x_power_eapd_writeRaymond Yau
Check whether the pin supports EAPD in ad198x_power_eapd_write. Signed-off-by: Raymond Yau <superquad.vortex2@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-06-03ALSA: hda - Fix HP and Front pins of ad1988/ad1989 in ad198x_power_eapd()Takashi Iwai
In ad198x_power_eapd(), wrong pin NIDs are used for controlling EAPD for HP and Front outputs of AD1988/AD1989. These are actually same with the ones for AD1984 & co, port-A is 0x11 and port-D 0x12. Reported-by: Raymond Yau <superquad.vortex2@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-06-03tg3: Fix tg3_skb_error_unmap()Matt Carlson
This function attempts to free one fragment beyond the number of fragments that were actually mapped. This patch brings back the limit to the correct spot. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Tested-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-02sparc: PCIC_PCI needs SPARC32 dependencyDavid S. Miller
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-03powerpc/85xx: fix race bug of calling request_irq after enable elbc interruptsShaohui Xie
Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-06-02xhci: Disable MSI for some Fresco Logic hosts.Sarah Sharp
Some Fresco Logic hosts, including those found in the AUAU N533V laptop, advertise MSI, but fail to actually generate MSI interrupts. Add a new xHCI quirk to skip MSI enabling for the Fresco Logic host controllers. Fresco Logic confirms that all chips with PCI vendor ID 0x1b73 and device ID 0x1000, regardless of PCI revision ID, do not support MSI. This should be backported to stable kernels as far back as 2.6.36, which was the first kernel to support MSI on xHCI hosts. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Reported-by: Sergey Galanov <sergey.e.galanov@gmail.com> Cc: stable@kernel.org
2011-06-02xhci: Do not issue device reset when device is not setupMaarten Lankhorst
xHCI controllers respond to a Reset Device command when the Slot is in the Enabled/Disabled state by returning an error. This is fine on other host controllers, but the Etron xHCI host controller returns a vendor-specific error code that the xHCI driver doesn't understand. The xHCI driver then gives up on device enumeration. Instead of issuing a command that will fail, just return. This fixes the issue with the xhci driver not working on ASRock P67 Pro/Extreme boards. This should be backported to stable kernels as far back as 2.6.34. Signed-off-by: Maarten Lankhorst <m.b.lankhorst@gmail.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Cc: stable@kernel.org
2011-06-02xhci: Add defines for hardcoded slot statesMaarten Lankhorst
This needs to be added to the stable trees back to 2.6.34 to support an upcoming bug fix. Signed-off-by: Maarten Lankhorst <m.b.lankhorst@gmail.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Cc: stable@kernel.org
2011-06-02sparc: Do not select GENERIC_HARDIRQS_NO_DEPRECATEDGeert Uytterhoeven
Config option GENERIC_HARDIRQS_NO_DEPRECATED was removed in commit 78c89825649a9a5ed526c507603196f467d781a5 ("genirq: Remove the now obsolete config options and select statements"), but the select was accidentally reintroduced in commit 6baa9b20a68a88c2fd751cbe8d7652009379351b ("sparc32: genirq support") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-02xhci: Bigendian fix for xhci_check_bandwidth()Matt Evans
Commit 834cb0fc4712a3b21c6b8c5cb55bd13607191311 "xhci: Fix memory leak bug when dropping endpoints" added a small endian bug. This patch fixes xhci_check_bandwidth() to read add/drop_flags LE. Signed-off-by: Matt Evans <matt@ozlabs.org> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2011-06-02sparc32,leon: add GRPCI2 PCI Host driverDaniel Hellstrom
The DMA region must be accessible in order for PCI peripheral drivers to work, the sparc32 has DMA in the normal memory zone which requires the GRPCI2 to PCI target BARs so that all kernel low mem (192MB) can be mapped 1:1 to PCI address space. The GRPCI2 has resizeable target BARs, by default the first is made 256MB and all other BARs are disabled. I/O space are always located on 0x1000-0x10000, but accessed through the GRPCI2 PCI I/O Window memory mapped to virtual address space. Configuration space is accessed through the 64KB GRPCI2 PCI CFG Window using LDA bypassing the MMU. The GRPCI2 has a single PCI Window for prefetchable and non- prefetchable address space, it is up to the AHB master requesting PCI data to determine access type. Memory space is mapped 1:1. The GRPCI2 core can be configured in 4 different IRQ modes, where PCI Interrupt, Error Interrupt and DMA Interrupt are shared on a single IRQ line or at most 5 IRQs are used. The GRPCI2 can mask/unmask PCI interrupts, Err and DMA in the control and check status bits which tells us which IRQ really happended. The GENIRQ layer is used to unmask/mask each individual IRQ source by creating virtual IRQs and implementing a IRQ chip. The optional DMA functionality of the GRPCI2 is not supported by this patch. Signed-off-by: Daniel Hellstrom <daniel@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-02sparc32,leon: added LEON-common low-level PCI routinesDaniel Hellstrom
The LEON architecture does not have a BIOS or bootloader that initializes PCI for us, instead Linux generic PCI layer is used to set up resources and IRQ. Signed-off-by: Daniel Hellstrom <daniel@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-02sparc32: added CONFIG_PCIC_PCI Kconfig settingDaniel Hellstrom
Signed-off-by: Daniel Hellstrom <daniel@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-02net: tracepoint of net_dev_xmit sees freed skb and causes panicKoki Sanagi
Because there is a possibility that skb is kfree_skb()ed and zero cleared after ndo_start_xmit, we should not see the contents of skb like skb->len and skb->dev->name after ndo_start_xmit. But trace_net_dev_xmit does that and causes panic by NULL pointer dereference. This patch fixes trace_net_dev_xmit not to see the contents of skb directly. If you want to reproduce this panic, 1. Get tracepoint of net_dev_xmit on 2. Create 2 guests on KVM 2. Make 2 guests use virtio_net 4. Execute netperf from one to another for a long time as a network burden 5. host will panic(It takes about 30 minutes) Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-02powerpc/book3e: Fix CPU feature handling on e5500 in 32-bit modeKumar Gala
We are missing FPU feature bit that user space may require. In the 64-bit mode this gets set since we pull it in via COMMON_USER_PPC64. We just explicitly set it so user space will be happy again. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-06-02powerpc/fsl_rio: Fix compile error when CONFIG_FSL_RIO not setKumar Gala
arch/powerpc/kernel/built-in.o: In function `machine_check_e500mc': arch/powerpc/kernel/traps.c:429: undefined reference to `fsl_rio_mcheck_exception' arch/powerpc/kernel/built-in.o: In function `machine_check_e500': arch/powerpc/kernel/traps.c:519: undefined reference to `fsl_rio_mcheck_exception' make: *** [.tmp_vmlinux1] Error 1 Reported-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-06-02asm-generic/unistd.h: support sendmmsg syscallChris Metcalf
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2011-06-02ALSA: 6fire: Don't leak firmware in error pathJesper Juhl
One of the error paths in sound/usb/6fire/firmware.c::usb6fire_fw_ezusb_upload() neglects to free the memory allocated for the firmware before returning, thus leaking the memory. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-06-02ktest: Ignore unset values of the minconfig in config_bisectSteven Rostedt
By ignoring the unset values of the minconfig in deciding what to test in the config_bisect can cause the problem config from being tested too. Just do not test the configs that are set in the minconfig. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2011-06-02ktest: Fix result of rebooting the kernelSteven Rostedt
The command that is called that reboots the kernel may fail but the return code is not passed back to the ktest.pl script. This is because a ';' is used between the two commands and if the second command fails, only the first command's return code is returned. Using a '&&' between the two commands fixes this. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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