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2011-01-25drm/nouveau: Workaround incorrect DCB entry on a GeForce3 Ti 200.Francisco Jerez
Fixes the DVI-D output on that board (fdo bug 32645). Reported-by: Bryan Quigley <BryanQuigley@Ubuntu.com> Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-01-25drm/nvc0: implement irq handler for whatever's at 0x14xxxxBen Skeggs
This is just barely enough to stop a never-ending IRQ storm that can be triggered by our 3D driver. We have no idea what this engine is.. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-01-25drm/nvc0: fix incorrect TPC register setupBen Skeggs
Was hitting TPC+1's regs by accident, oops. Reported-by: Christoph Bumiller <e0425955@student.tuwien.ac.at> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-01-25drm/nouveau: probe for adt7473 before f75375Ben Skeggs
There's a reported case where probing for f75375 causes the system to hang completely, in this case there's an adt7473 at the same i2c address. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-01-25drm/nouveau: remove dead function definitionBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-01-24OMAP: PM: SmartReflex: Add missing IS_ERR testJulia Lawall
Function _sr_lookup, defined in the same file, returns ERR_PTR not NULL in an error case. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ identifier f; @@ f(...) { ... return ERR_PTR(...); } @@ identifier r.f, fld; expression x; statement S1,S2; @@ x = f(...) ... when != IS_ERR(x) ( if (IS_ERR(x) ||...) S1 else S2 | *x->fld ) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-01-25Merge branch 'for-38-rc3' of git://codeaurora.org/quic/kernel/davidb/linux-msmLinus Torvalds
* 'for-38-rc3' of git://codeaurora.org/quic/kernel/davidb/linux-msm: drivers: mmc: msm: remove clock disable in probe mmc: msm: fix dma usage not to use internal APIs
2011-01-25Merge branch 'drm-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm/radeon/kms: add new radeon_info ioctl query for clock crystal freq drm/i915: Prevent uninitialised reads during error state capture drm/i915: Use consistent mappings for OpRegion between ACPI and i915 drm/i915: Handle the no-interrupts case for UMS by polling drm/i915: Disable high-precision vblank timestamping for UMS drm/i915: Increase the amount of defense before computing vblank timestamps drm/i915,agp/intel: Do not clear stolen entries drm/radeon/kms: simplify atom adjust pll setup drm/radeon/kms: match r6xx/r7xx/evergreen asic_reset with previous asics drm/radeon/kms: make the mac rv630 quirk generic drm/radeon/kms: fix a spelling error in an error message drm/radeon/kms: Initialize pageflip spinlocks. drm/i915: Recognise non-VGA display devices drm/i915: Fix use of invalid array size for ring->sync_seqno drm/i915/ringbuffer: Fix use of stale HEAD position whilst polling for space drm/i915: Don't kick-off hangcheck after a DRI interrupt drm/i915: Add dependency on CONFIG_TMPFS drm/i915: Initialise ring vfuncs for old DRI paths drm/i915: make the blitter report buffer modifications to the FBC unit drm/i915: set more FBC chicken bits
2011-01-24ipv6: Always clone offlink routes.David S. Miller
Do not handle PMTU vs. route lookup creation any differently wrt. offlink routes, always clone them. Reported-by: PK <runningdoglackey@yahoo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-24dcbnl: make get_app handling symmetric for IEEE and CEE DCBxJohn Fastabend
The IEEE get/set app handlers use generic routines and do not require the net_device to implement the dcbnl_ops routines. This patch makes it symmetric so user space and drivers do not have to handle the CEE version and IEEE DCBx versions differently. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-24Merge branch 'can/at91_can-for-net-2.6' of ↵David S. Miller
git://git.pengutronix.de/git/mkl/linux-2.6
2011-01-25Merge branch 'drm-intel-fixes-2' of ↵Dave Airlie
ssh://master.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel into drm-fixes * 'drm-intel-fixes-2' of ssh://master.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel: (30 commits) drm/i915: Prevent uninitialised reads during error state capture drm/i915: Use consistent mappings for OpRegion between ACPI and i915 drm/i915: Handle the no-interrupts case for UMS by polling drm/i915: Disable high-precision vblank timestamping for UMS drm/i915: Increase the amount of defense before computing vblank timestamps drm/i915,agp/intel: Do not clear stolen entries Remove MAYBE_BUILD_BUG_ON BUILD_BUG_ON: make it handle more cases module: fix missing semicolons in MODULE macro usage param: add null statement to compiled-in module params module: fix linker error for MODULE_VERSION when !MODULE and CONFIG_SYSFS=n module: show version information for built-in modules in sysfs selinux: return -ENOMEM when memory allocation fails tpm: fix panic caused by "tpm: Autodetect itpm devices" TPM: Long default timeout fix trusted keys: Fix a memory leak in trusted_update(). keys: add trusted and encrypted maintainers encrypted-keys: rename encrypted_defined files to encrypted trusted-keys: rename trusted_defined files to trusted drm/i915: Recognise non-VGA display devices ...
2011-01-24tcp: fix bug in listening_get_next()Eric Dumazet
commit a8b690f98baf9fb19 (tcp: Fix slowness in read /proc/net/tcp) introduced a bug in handling of SYN_RECV sockets. st->offset represents number of sockets found since beginning of listening_hash[st->bucket]. We should not reset st->offset when iterating through syn_table[st->sbucket], or else if more than ~25 sockets (if PAGE_SIZE=4096) are in SYN_RECV state, we exit from listening_get_next() with a too small st->offset Next time we enter tcp_seek_last_pos(), we are not able to seek past already found sockets. Reported-by: PK <runningdoglackey@yahoo.com> CC: Tom Herbert <therbert@google.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-25drm/radeon/kms: add new radeon_info ioctl query for clock crystal freqAlex Deucher
Needed for timer queries in the 3D driver. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@gmail.com>
2011-01-24inetpeer: Use correct AVL tree base pointer in inet_getpeer().David S. Miller
Family was hard-coded to AF_INET but should be daddr->family. This fixes crashes when unlinking ipv6 peer entries, since the unlink code was looking up the base pointer properly. Reported-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-24GRO: fix merging a paged skb after non-paged skbsMichal Schmidt
Suppose that several linear skbs of the same flow were received by GRO. They were thus merged into one skb with a frag_list. Then a new skb of the same flow arrives, but it is a paged skb with data starting in its frags[]. Before adding the skb to the frag_list skb_gro_receive() will of course adjust the skb to throw away the headers. It correctly modifies the page_offset and size of the frag, but it leaves incorrect information in the skb: ->data_len is not decreased at all. ->len is decreased only by headlen, as if no change were done to the frag. Later in a receiving process this causes skb_copy_datagram_iovec() to return -EFAULT and this is seen in userspace as the result of the recv() syscall. In practice the bug can be reproduced with the sfc driver. By default the driver uses an adaptive scheme when it switches between using napi_gro_receive() (with skbs) and napi_gro_frags() (with pages). The bug is reproduced when under rx load with enough successful GRO merging the driver decides to switch from the former to the latter. Manual control is also possible, so reproducing this is easy with netcat: - on machine1 (with sfc): nc -l 12345 > /dev/null - on machine2: nc machine1 12345 < /dev/zero - on machine1: echo 1 > /sys/module/sfc/parameters/rx_alloc_method # use skbs echo 2 > /sys/module/sfc/parameters/rx_alloc_method # use pages - See that nc has quit suddenly. [v2: Modified by Eric Dumazet to avoid advancing skb->data past the end and to use a temporary variable.] Signed-off-by: Michal Schmidt <mschmidt@redhat.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-24x86-64: Don't use pointer to out-of-scope variable in dump_trace()Jesper Juhl
In arch/x86/kernel/dumpstack_64.c::dump_trace() we have this code: ... if (!stack) { unsigned long dummy; stack = &dummy; if (task && task != current) stack = (unsigned long *)task->thread.sp; } bp = stack_frame(task, regs); /* * Print function call entries in all stacks, starting at the * current stack address. If the stacks consist of nested * exceptions */ tinfo = task_thread_info(task); for (;;) { char *id; unsigned long *estack_end; estack_end = in_exception_stack(cpu, (unsigned long)stack, &used, &id); ... You'll notice that we assign to 'stack' the address of the variable 'dummy' which is only in-scope inside the 'if (!stack)'. So when we later access stack (at the end of the above, and assuming we did not take the 'if (task && task != current)' branch) we'll be using the address of a variable that is no longer in scope. I believe this patch is the proper fix, but I freely admit that I'm not 100% certain. Signed-off-by: Jesper Juhl <jj@chaosbits.net> LKML-Reference: <alpine.LNX.2.00.1101242232590.10252@swampdragon.chaosbits.net> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2011-01-24Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
2011-01-24net: arp_ioctl() must hold RTNLEric Dumazet
Commit 941666c2e3e0 "net: RCU conversion of dev_getbyhwaddr() and arp_ioctl()" introduced a regression, reported by Jamie Heilman. "arp -Ds 192.168.2.41 eth0 pub" triggered the ASSERT_RTNL() assert in pneigh_lookup() Removing RTNL requirement from arp_ioctl() was a mistake, just revert that part. Reported-by: Jamie Heilman <jamie@audible.transient.net> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-25staging: r8712u: Add new device IDsAxel Köllhofer
This patch adds several new device ids to the r8712u staging driver. The new ids were retrieved from latest vendor driver (v2.6.6.0.20101111) downloadable from www.realtek.com.tw Signed-off-by: Axel Koellhofer <AxelKoellhofer@web.de> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Stable <stable@kernel.org> [2.6.37] Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-01-24netfilter: xt_iprange: Incorrect xt_iprange boundary check for IPv6Thomas Jacob
iprange_ipv6_sub was substracting 2 unsigned ints and then casting the result to int to find out whether they are lt, eq or gt each other, this doesn't work if the full 32 bits of each part can be used in IPv6 addresses. Patch should remedy that without significant performance penalties. Also number of ntohl calls can be reduced this way (Jozsef Kadlecsik). Signed-off-by: Thomas Jacob <jacob@internet24.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2011-01-25fix a shutdown regression in intel_idleShaohua Li
Fix a shutdown regression caused by 2a2d31c8dc6f ("intel_idle: open broadcast clock event"). The clockevent framework can automatically shutdown broadcast timers for hotremove CPUs. And we get a shutdown regression when we shutdown broadcast timer for hot remove CPU, so just delete some code. Also fix some section mismatch. Reported-by: Ari Savolainen <ari.m.savolainen@gmail.com> Signed-off-by: Shaohua Li <shaohua.li@intel.com> Tested-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-25Merge branch 'omap-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 * 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: omap: DMA: clear interrupt status correctly OMAP3: Devkit8000: Fix tps65930 pullup/pulldown configuration arm: omap3: cm-t3517: minor comment fix arm: omap3: cm-t3517: rtc fix omap1: Fix sched_clock implementation when both MPU timer and 32K timer are used omap1: Fix booting for 15xx and 730 with omap1_defconfig omap1: Fix sched_clock for the MPU timer OMAP: PRCM: remove duplicated headers OMAP4: clockdomain: bypass unimplemented wake-up dependency functions on OMAP4 OMAP: counter_32k: init clocksource as part of machine timer init
2011-01-25Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf tools: Fix time function double declaration with glibc perf tools: Fix build by checking if extra warnings are supported perf tools: Fix build when using gcc 3.4.6 perf tools: Add missing header, fixes build perf tools: Fix 64 bit integer format strings perf test: Fix build on older glibcs perf: perf_event_exit_task_context: s/rcu_dereference/rcu_dereference_raw/ perf test: Use cpu_map->[cpu] when setting affinity perf symbols: Fix annotation of thumb code perf: Annotate cpuctx->ctx.mutex to avoid a lockdep splat powerpc, perf: Fix frequency calculation for overflowing counters (FSL version) perf: Fix perf_event_init_task()/perf_event_free_task() interaction perf: Fix find_get_context() vs perf_event_exit_task() race
2011-01-25Merge branch 'timers-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: RTC: Remove Kconfig symbol for UIE emulation RTC: Properly handle rtc_read_alarm error propagation and fix bug RTC: Propagate error handling via rtc_timer_enqueue properly acpi_pm: Clear pmtmr_ioport if acpi_pm initialization fails rtc: Cleanup removed UIE emulation declaration hrtimers: Notify hrtimer users of switches to NOHZ mode
2011-01-25Merge branch 'sched-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: Fix poor interactivity on UP systems due to group scheduler nice tune bug
2011-01-25Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Fix jump label with RO/NX module protection crash x86, hotplug: Fix powersavings with offlined cores on AMD x86, mcheck, therm_throt.c: Export symbol platform_thermal_notify to allow coretemp to handler intr x86: Use asm-generic/cacheflush.h x86: Update CPU cache attributes table descriptors
2011-01-24drm/i915: Prevent uninitialised reads during error state captureChris Wilson
error_bo and pinned_bo could be used uninitialised if there were no active buffers. Caught by kmemcheck. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2011-01-24drm/i915: Use consistent mappings for OpRegion between ACPI and i915Michael Karcher
The opregion is a shared memory region between ACPI and the graphics driver. As the ACPI mapping has been changed to cachable in commit 6d5bbf00d251cc73223a71422d69e069dc2e0b8d, mapping the intel opregion non-cachable now fails. As no bus-master hardware is involved in the opregion, cachable map should do no harm. Tested on a Fujitsu Lifebook P8010. Signed-off-by: Michael Karcher <kernel@mkarcher.dialup.fu-berlin.de> [ickle: convert to acpi_os_ioremap for consistency] Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2011-01-24Merge remote branch 'linus/master' into drm-intel-fixesChris Wilson
Merge with Linus to resolve conflicting fixes for the reusing the stale HEAD value during intel_ring_wait(). Conflicts: drivers/gpu/drm/i915/intel_ringbuffer.c
2011-01-24drm/i915: Handle the no-interrupts case for UMS by pollingChris Wilson
If the driver calls into the kernel to wait for a breadcrumb to pass, but hasn't enabled interrupts, fallback to polling the breadcrumb value. Reported-by: Chris Clayton <chris2553@googlemail.com> Tested-by: Chris Clayton <chris2553@googlemail.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2011-01-24drm/i915: Disable high-precision vblank timestamping for UMSChris Wilson
We only have sufficient information for accurate (sub-frame) timestamping when the modesetting is under our control. Reported-by: Chris Clayton <chris2553@googlemail.com> Tested-by: Chris Clayton <chris2553@googlemail.com> Reviewed-by: Mario Kleiner <mario.kleiner@tuebingen.mpg.de> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2011-01-24drm/i915: Increase the amount of defense before computing vblank timestampsChris Wilson
Reported-by: Chris Clayton <chris2553@googlemail.com> Tested-by: Chris Clayton <chris2553@googlemail.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2011-01-24drm/i915,agp/intel: Do not clear stolen entriesChris Wilson
We can only utilize the stolen portion of the GTT if we are in sole charge of the hardware. This is only true if using GEM and KMS, otherwise VESA continues to access stolen memory. Reported-by: Arnd Bergmann <arnd@arndb.de> Reported-by: Frederic Weisbecker <fweisbec@gmail.com> Tested-by: Jiri Olsa <jolsa@redhat.com> Tested-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2011-01-24netfilter: ctnetlink: fix missing refcount increment during dumpsPablo Neira Ayuso
In 13ee6ac netfilter: fix race in conntrack between dump_table and destroy, we recovered spinlocks to protect the dump of the conntrack table according to reports from Stephen and acknowledgments on the issue from Eric. In that patch, the refcount bump that allows to keep a reference to the current ct object was removed. However, we still decrement the refcount for that object in the output path of ctnetlink_dump_table(): if (last) nf_ct_put(last) Cc: Stephen Hemminger <stephen.hemminger@vyatta.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2011-01-24[SCSI] libsas: fix runaway error handler problemJames Bottomley
libsas makes use of scsi_schedule_eh() but forgets to clear the host_eh_scheduled flag in its error handling routine. Because of this, the error handler thread never gets to sleep; it's constantly awake and trying to run the error routine leading to console spew and inability to run anything else (at least on a UP system). The fix is to clear the flag as we splice the work queue. Cc: stable@kernel.org Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-01-24[SCSI] fix incorrect value of SCSI_MAX_SG_CHAIN_SEGMENTS due to include file ↵David Dillow
ordering If the compiled object doesn't include linux/scatterlist.h before scsi/scsi.h, it will get an incorrect definition of SCSI_MAX_SG_CHAIN_SEGMENTS. Signed-off-by: David Dillow <dillowda@ornl.gov> Cc: stable@kernel.org Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-01-24Input: wacom - add 2 Bamboo Pen and touch modelsPing Cheng
Reported-by: David Foley <favux.is@gmail.com> Signed-off-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-01-24Input: sysrq - ensure sysrq_enabled and __sysrq_enabled are consistentAndy Whitcroft
Currently sysrq_enabled and __sysrq_enabled are initialised separately and inconsistently, leading to sysrq being actually enabled by reported as not enabled in sysfs. The first change to the sysfs configurable synchronises these two: static int __read_mostly sysrq_enabled = 1; static int __sysrq_enabled; Add a common define to carry the default for these preventing them becoming out of sync again. Default this to 1 to mirror previous behaviour. Signed-off-by: Andy Whitcroft <apw@canonical.com> Cc: stable@kernel.org Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-01-24[SCSI] arcmsr: Fix the issue of system hangup after commands timeout on ARC-1200NickCheng
[jejb: fix up patch problems and checkpatch.pl issues] Signed-off-by: Nick Cheng <nick.cheng@areca.com.tw> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-01-24ALSA: HDA: cxt5066 - Use asus model for Asus U50F, select correct SPDIF outputAndy Robinson
Changed the Asus A52J quirk to use the asus model instead of the hp_laptop model, which fixes the external mic input. Added an Asus U50F quirk to use the asus model. For the cxt5066 codecs, added checking of the digital output pins to determine which digital output nodes to use instead of always using node 0x21, since some systems have node 0x12 connected to a SPDIF out jack. [A slight modification for better readability by tiwai] Signed-off-by: Andy Robinson <ajr55555@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-01-24[SCSI] mpt2sas: fix Integrated Raid unsynced on shutdown problemKashyap, Desai
Issue: IR shutdown(sending) and IR shutdown(complete) messages not listed in /var/log/messages when driver is removed. The driver needs to issue a MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED request when the driver is unloaded so the IR metadata journal is updated. If this request is not sent, then the volume would need a "check consistency" issued on the next bootup if the volume was roamed from one initiator to another. The current driver supports this feature only when the system is rebooted, however this also need to be supported if the driver is unloaded Fix: To fix this issue, the driver is going to need to call the _scsih_ir_shutdown prior to reporting the volumes missing from the OS, hence the device handles are still present. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Cc: stable@kernel.org Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-01-24[SCSI] mpt2sas: Kernel Panic during Large Topology discovery Kashyap, Desai
There was a configuration page timing out during the initial port enable at driver load time. The port enable would fail, and this would result in the driver unloading itself, meanwhile the driver was accessing freed memory in another context resulting in the panic. The fix is to prevent access to freed memory once the driver had issued the diag reset which woke up the sleeping port enable process. The routine _base_reset_handler was reorganized so the last sleeping process woken up was the port_enable. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Cc: stable@kernel.org Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-01-24[SCSI] mpt2sas: Fix the race between broadcast asyn event and scsi command ↵Kashyap, Desai
completion False timeout after hard resets, there were two issues which leads to timeout. (1) Panic because of invalid memory access in the broadcast asyn event processing routine due to a race between accessing the scsi command pointer from broadcast asyn event processing thread and completing the same scsi command from the interrupt context. (2) Broadcast asyn event notifcations are not handled due to events ignored while the broadcast asyn event is activity being processed from the event process kernel thread. In addition, changed the ABRT_TASK_SET to ABORT_TASK in the broadcast async event processing routine. This is less disruptive to other request that generate Broadcast Asyn Primitives besides target reset. e.g clear reservations, microcode download,and mode select. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Cc: stable@kernel.org Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-01-24ARM: 6632/3: mmci: stop using the blockend interruptsLinus Walleij
Implement a suggestion from Russell to drop the use of blockend interrupts altogether and instead rely on the data counter. Tested with error-free cards on U300, U8500 and RealView PB1176. Signed-off-by: Ulf Hansson <ulf.hansson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-24[SCSI] mpt2sas: Correct resizing calculation for max_queue_depthKashyap, Desai
The ioc->hba_queue_depth is not properly resized when the controller firmware reports that it supports more outstanding IO than what can be fit inside the reply descriptor pool depth. This is reproduced by setting the controller global credits larger than 30,000. The bug results in an incorrect sizing of the queues. The fix is to resize the queue_size by dividing queue_diff by two. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Cc: stable@kernel.org Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-01-24[SCSI] mpt2sas: fix internal device reset for older firmware prior to MPI Rev KKashyap, Desai
The "internal device reset complete" event is not supported for older firmware prior to MPI Rev K We added a check in the driver so the "internal device reset" event is ignored for older firmware. When ignored, the tm_busy flag doesn't get set nor cleared. Without this fix, IO queues would be froozen indefinetly after the "internal device reset" event, as the "complete" event never sent to clear the flag. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Cc: stable@kernel.org Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-01-24[SCSI] mpt2sas: Fix device removal handshake for zoned devicesKashyap, Desai
When zoning end devices, the driver is not sending device removal handshake alogrithm to firmware. This results in controller firmware not sending sas topology add events the next time the device is added. The fix is the driver should be doing the device removal handshake even though the PHYSTATUS_VACANT bit is set in the PhyStatus of the event data. The current design is avoiding the handshake when the VACANT bit is set in the phy status. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Cc: stable@kernel.org Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-01-24can: at91_can: make can_id of mailbox 0 configurableMarc Kleine-Budde
Due to a chip bug (errata 50.2.6.3 & 50.3.5.3 in "AT91SAM9263 Preliminary 6249H-ATARM-27-Jul-09") the contents of mailbox 0 may be send under certain conditions (even if disabled or in rx mode). The workaround in the errata suggests not to use the mailbox and load it with an unused identifier. This patch implements the second part of the workaround. A sysfs entry "mb0_id" is introduced. While the interface is down it can be used to configure the can_id of mailbox 0. The default value id 0x7ff. In order to use an extended can_id add the CAN_EFF_FLAG (0x80000000U) to the can_id. Example: - standard id 0x7ff: echo 0x7ff > /sys/class/net/can0/mb0_id - extended id 0x1fffffff: echo 0x9fffffff > /sys/class/net/can0/mb0_id Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Acked-by: Wolfgang Grandegger <wg@grandegger.com> Acked-by: Kurt Van Dijck <kurt.van.dijck@eia.be> For the Documentation-part: Acked-by: Wolfram Sang <w.sang@pengutronix.de>
2011-01-24can: at91_can: don't use mailbox 0Marc Kleine-Budde
Due to a chip bug (errata 50.2.6.3 & 50.3.5.3 in "AT91SAM9263 Preliminary 6249H-ATARM-27-Jul-09") the contents of mailbox 0 may be send under certain conditions (even if disabled or in rx mode). The workaround in the errata suggests not to use the mailbox and load it with a unused identifier. This patch implements the first part of the workaround, it updates AT91_MB_RX_NUM and AT91_MB_RX_FIRST (and the inline documentation) so that mailbox 0 stays unused. Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Acked-by: Wolfgang Grandegger <wg@grandegger.com> Acked-by: Kurt Van Dijck <kurt.van.dijck@eia.be>