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2009-02-27pkt_sched: sch_drr: Fix oops in drr_change_class.Jarek Poplawski1-1/+5
drr_change_class lacks a check for NULL of tca[TCA_OPTIONS], so oops is possible. Reported-by: Denys Fedoryschenko <denys@visp.net.lb> Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-26b44: Disable device on shutdownMichael Buesch1-0/+1
Disable the SSB core on device shutdown. This has two advantages: 1) A clean device shutdown is always desired here, because we disable the device's global crystal in the next statement. 2) This fixes a bug where the device will come up with the enable-bit set on the next initialization (without a reboot inbetween). This causes breakage on the second initialization due to code that checks this bit (ssb_device_is_enabled() checks). Reported-by: Pantelis Koukousoulas <pktoss@gmail.com> Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-26b44: Unconditionally enable interrupt routing on resetMichael Buesch1-4/+8
Unconditionally setup the IRQ routing on chip reset. It's safe to call ssb_pcicore_dev_irqvecs_enable() unconditionally, because it has internal checks for redundant calls. This fixes problems where hardware will not come up properly due to quirks in the enable-bit hardware. Reported-by: Pantelis Koukousoulas <pktoss@gmail.com> Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-26net: fix hp-plus build errorRandy Dunlap1-1/+1
hp-plus needs to call __alloc_eip_netdev() instead of __alloc_ei_netdev() since it is linked with 8390p.o. Fixes this build error: ERROR: "__alloc_ei_netdev" [drivers/net/hp-plus.ko] undefined! Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-26ipv6: don't use tw net when accounting for recycled twPavel Emelyanov1-2/+2
We already have a valid net in that place, but this is not just a cleanup - the tw pointer can be NULL there sometimes, thus causing an oops in NET_NS=y case. The same place in ipv4 code already works correctly using existing net, rather than tw's one. The bug exists since 2.6.27. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-24asix: new device idsGreg Kroah-Hartman1-0/+8
This patch adds two new device ids to the asix driver. One comes directly from the asix driver on their web site, the other was reported by Armani Liao as needed for the MSI X320 to get the driver to work properly for it. Reported-by: Armani Liao <aliao@novell.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-24tcp_scalable: Update malformed & dead urlJoe Perches1-1/+1
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-24netfilter: xt_recent: fix proc-file addition/removal of IPv4 addressesJosef Drexler1-1/+1
Fix regression introduded by commit 079aa88 (netfilter: xt_recent: IPv6 support): From http://bugzilla.kernel.org/show_bug.cgi?id=12753: Problem Description: An uninitialized buffer causes IPv4 addresses added manually (via the +IP command to the proc interface) to never match any packets. Similarly, the -IP command fails to remove IPv4 addresses. Details: In the function recent_entry_lookup, the xt_recent module does comparisons of the entire nf_inet_addr union value, both for IPv4 and IPv6 addresses. For addresses initialized from actual packets the remaining 12 bytes not occupied by the IPv4 are zeroed so this works correctly. However when setting the nf_inet_addr addr variable in the recent_mt_proc_write function, only the IPv4 bytes are initialized and the remaining 12 bytes contain garbage. Hence addresses added in this way never match any packets, unless these uninitialized 12 bytes happened to be zero by coincidence. Similarly, addresses cannot consistently be removed using the proc interface due to mismatch of the garbage bytes (although it will sometimes work to remove an address that was added manually). Reading the /proc/net/xt_recent/ entries hides this problem because this only uses the first 4 bytes when displaying IPv4 addresses. Steps to reproduce: $ iptables -I INPUT -m recent --rcheck -j LOG $ echo +169.254.156.239 > /proc/net/xt_recent/DEFAULT $ cat /proc/net/xt_recent/DEFAULT src=169.254.156.239 ttl: 0 last_seen: 119910 oldest_pkt: 1 119910 [At this point no packets from 169.254.156.239 are being logged.] $ iptables -I INPUT -s 169.254.156.239 -m recent --set $ cat /proc/net/xt_recent/DEFAULT src=169.254.156.239 ttl: 0 last_seen: 119910 oldest_pkt: 1 119910 src=169.254.156.239 ttl: 255 last_seen: 126184 oldest_pkt: 4 125434, 125684, 125934, 126184 [At this point, adding the address via an iptables rule, packets are being logged correctly.] $ echo -169.254.156.239 > /proc/net/xt_recent/DEFAULT $ cat /proc/net/xt_recent/DEFAULT src=169.254.156.239 ttl: 0 last_seen: 119910 oldest_pkt: 1 119910 src=169.254.156.239 ttl: 255 last_seen: 126992 oldest_pkt: 10 125434, 125684, 125934, 126184, 126434, 126684, 126934, 126991, 126991, 126992 $ echo -169.254.156.239 > /proc/net/xt_recent/DEFAULT $ cat /proc/net/xt_recent/DEFAULT src=169.254.156.239 ttl: 0 last_seen: 119910 oldest_pkt: 1 119910 src=169.254.156.239 ttl: 255 last_seen: 126992 oldest_pkt: 10 125434, 125684, 125934, 126184, 126434, 126684, 126934, 126991, 126991, 126992 [Removing the address via /proc interface failed evidently.] Possible solutions: - initialize the addr variable in recent_mt_proc_write - compare only 4 bytes for IPv4 addresses in recent_entry_lookup Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-02-24netxen: handle pci bar 0 mapping failureDhananjay Phadke1-1/+6
PCI bar 0 is used for memory mapped register access. If ioremap fails (returns NULL), register access results in crash. Use pci_ioremap_bar() instead of ioremap(), the latter fails on on 32 bit powerpc where pci resource address is > 32 bits. Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-24netxen: fix physical port mappingDhananjay Phadke1-3/+6
The PCI function to physical port mapping is valid only for old firmware. New firmware (4.0.0+) abstracts this. So driver should never try to access phy using invalid mapping. The behavior is unpredictable when PCI functions 4-7 are enabled on the same NIC. Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-23proc: proc_get_inode should de_put when inode already initializedKrzysztof Sachanowicz1-1/+3
de_get is called before every proc_get_inode, but corresponding de_put is called only when dropping last reference to an inode. This might cause something like remove_proc_entry: /proc/stats busy, count=14496 to be printed to the syslog. The fix is to call de_put in case of an already initialized inode in proc_get_inode. Signed-off-by: Krzysztof Sachanowicz <analyzer1@gmail.com> Tested-by: Marcin Pilipczuk <marcin.pilipczuk@gmail.com> Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-23i915: suspend/resume interrupt stateJesse Barnes1-3/+7
In the KMS case, enter/leavevt won't fix up the interrupt handler for us, so we need to do it at suspend/resume time. Make sure we don't fail the resume if the chip is hung either. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-23Fix an oops in i915_gem_retire_requests()Karsten Wiese1-0/+3
dev_priv->hw_status_page can be NULL, if i915_gem_retire_requests() is called from i915_gem_busy_ioctl(). Signed-off-by Karsten Wiese <fzu@wemgehoertderstaat.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-23net: amend the fix for SO_BSDCOMPAT gsopt infoleakEugene Teo1-1/+1
The fix for CVE-2009-0676 (upstream commit df0bca04) is incomplete. Note that the same problem of leaking kernel memory will reappear if someone on some architecture uses struct timeval with some internal padding (for example tv_sec 64-bit and tv_usec 32-bit) --- then, you are going to leak the padded bytes to userspace. Signed-off-by: Eugene Teo <eugeneteo@kernel.sg> Reported-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-23netns: build fix for net_alloc_genericClemens Noss1-4/+4
net_alloc_generic was defined in #ifdef CONFIG_NET_NS, but used unconditionally. Move net_alloc_generic out of #ifdef. Signed-off-by: Clemens Noss <cnoss@gmx.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-23rtl8187: New USB ID's for RTL8187LLarry Finger1-0/+12
Add new USB ID codes. These come from two postings on forums and mailing lists, and four are derived from the .inf that accompanies the latest Realtek Windows driver for the RTL8187L. Thanks to Viktor Ilijašić <viktor.ilijasic@gmail.com> and Xose Vazquez Perez <xose.vazquez@gmail.com> for reporting these new ID's. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-23ath9k: Fix panic upon attach failureVasanthakumar Thiagarajan1-7/+17
[246916.338046] [246916.338048] Pid: 29265, comm: insmod Not tainted (2.6.29-rc4-wl #64) 9461DUU [246916.338051] EIP: 0060:[<c02ca274>] EFLAGS: 00010202 CPU: 0 [246916.338055] EIP is at rollback_registered+0x24/0x220 [246916.338057] EAX: 00000001 EBX: 00000000 ECX: 00000000 EDX: f122e8fc [246916.338059] ESI: 00000000 EDI: 00000000 EBP: f6595d30 ESP: f6595d1c [246916.338062] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 [246916.338064] Process insmod (pid: 29265, ti=f6594000 task=f7343fe0 task.ti=f6594000) [246916.338067] Stack: [246916.338068] c04a2920 22222222 f6595d48 00000000 f122f080 f6595d48 c02ca489 f122e8fc [246916.338076] f122e220 f122f080 f122e220 f6595d5c f8a03156 f122e220 f122f080 f122e220 [246916.338085] f6595d80 f87359af f122f080 00002000 f874e129 f122f150 f122f080 f6290000 [246916.338094] Call Trace: [246916.338096] [<c02ca489>] ? unregister_netdevice+0x19/0x70 [246916.338100] [<f8a03156>] ? ieee80211_unregister_hw+0x36/0xd0 [mac80211] [246916.338112] [<f87359af>] ? ath_detach+0xcf/0x250 [ath9k] [246916.338127] [<f8735d9c>] ? ath_attach+0x26c/0x740 [ath9k] [246916.338139] [<f873c33a>] ? ath_pci_probe+0x13a/0x310 [ath9k] [246916.338151] [<c0233e28>] ? _raw_spin_unlock+0x68/0x80 [246916.338158] [<c023ab8e>] ? local_pci_probe+0xe/0x10 [246916.338162] [<c023b8e0>] ? pci_device_probe+0x60/0x80 [246916.338169] [<c029e042>] ? driver_probe_device+0x82/0x1b0 [246916.338174] [<c029e1f9>] ? __driver_attach+0x89/0x90 [246916.338180] [<c029d97b>] ? bus_for_each_dev+0x4b/0x70 [246916.338184] [<c023b820>] ? pci_device_remove+0x0/0x40 [246916.338190] [<c029ded9>] ? driver_attach+0x19/0x20 [246916.338193] [<c029e170>] ? __driver_attach+0x0/0x90 [246916.338197] [<c029d317>] ? bus_add_driver+0x1b7/0x230 [246916.338203] [<c023b820>] ? pci_device_remove+0x0/0x40 [246916.338206] [<c029e399>] ? driver_register+0x69/0x140 [246916.338212] [<f859d000>] ? ath9k_init+0x0/0x54 [ath9k] [246916.338221] [<c023bb4e>] ? __pci_register_driver+0x4e/0x90 [246916.338225] [<f859d000>] ? ath9k_init+0x0/0x54 [ath9k] [246916.338232] [<f859d06b>] ? ath_pci_init+0x17/0x19 [ath9k] [246916.338238] [<f859d017>] ? ath9k_init+0x17/0x54 [ath9k] [246916.338245] [<c017148e>] ? tracepoint_update_probe_range+0x7e/0xb0 [246916.338249] [<c010111a>] ? do_one_initcall+0x2a/0x170 [246916.338252] [<c0149f26>] ? up_read+0x16/0x30 [246916.338256] [<c014aa9d>] ? __blocking_notifier_call_chain+0x4d/0x60 [246916.338265] [<c0162b1a>] ? sys_init_module+0x8a/0x1c0 [246916.338269] [<c022f888>] ? trace_hardirqs_on_thunk+0xc/0x10 [246916.338272] [<c0103ebf>] ? sysenter_do_call+0x12/0x43 [246916.338276] Code: 8d bc 27 00 00 00 00 55 89 e5 56 89 c6 53 83 ec 0c a1 74 27 4a c0 85 c0 0f 85 4b 01 00 00 e8 04 7d 00 00 85 c0 0f 84 c9 01 00 00 <8b> 86 18 03 00 00 85 c0 0f 84 86 01 00 00 83 e8 01 0f 85 71 01 [246916.338328] EIP: [<c02ca274>] rollback_registered+0x24/0x220 SS:ESP 0068:f6595d1c [246916.338335] ---[ end trace 76357c56a75ea34e ]--- Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-23orinoco: do not resgister NULL pm_notifier functionAndrey Borzenkov1-4/+15
With DEBUG_NOTIFIERS it results in [11330.890966] WARNING: at /home/bor/src/linux-git/kernel/notifier.c:88 notifier_call_chain+0x91/0xa0() [11330.890977] Hardware name: PORTEGE 4000 [11330.890983] Invalid notifier called! ... Without DEBUG_NOTIFIERS it most likely crashes on NULL pointer. Signed-off-by: Andrey Borzenkov <arvidjaar@mail.ru> Acked-by: David Kilroy <kilroyd@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-22Linux 2.6.29-rc6Linus Torvalds1-1/+1
2009-02-22acpi/doc: add missing param valueRandy Dunlap1-1/+1
Add missing parameter value to list of available values for acpi=<value>. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-23drm/i915: Add missing mutex_lock(&dev->struct_mutex)Pierre Willenbrock1-0/+1
there might be a nicer way to fix this but this is the simplest for now. Signed-off-by: Pierre Willenbrock <pierre@pirsoft.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-02-23drm/i915: fix WC mapping in non-GEM i915 code.Jesse Barnes1-1/+1
[airlied - taken from mailing list posting] Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-02-23drm/i915: Fix regression in 95ca9dChris Wilson1-2/+6
The object is dereferenced before the NULL check. Oops. Fixes http://bugs.freedesktop.org/show_bug.cgi?id=20235 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-02-23drm/i915: Retire requests from i915_gem_busy_ioctl.Eric Anholt1-0/+7
This ensures that the user gets the latest information from the hardware on whether the buffer is busy, potentially reducing the working set of objects that the user chooses. Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-02-23drm/i915: suspend/resume GEM when KMS is activeJesse Barnes3-2/+24
In the KMS case, we need to suspend/resume GEM as well. So on suspend, make sure we idle GEM and stop any new rendering from coming in, and on resume, re-init the framebuffer and clear the suspended flag. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-02-23drm/i915: Don't let a device flush to prepare buffers clear new write_domains.Eric Anholt1-2/+14
The problem was that object_set_to_gpu_domain would set the new write_domains that are getting set by this batchbuffer, then the accumulated flushes required for all the objects in preparation for this batchbuffer were posted, and the brand new write domain would get cleared by the flush being posted. Instead, hang on to the new (or old if we're not changing it) value and set it after the flush is queued. Results from this noticably included conformance test failures from reads shortly after writes (where the new write domain had been lost and thus not flushed and waited on), but is a suspected cause of hangs in some apps when a write domain is lost on a buffer that gets reused for instruction or commmand state. Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-02-23drm/i915: Cut two args to set_to_gpu_domain that confused this tricky path.Eric Anholt1-22/+16
While not strictly required, it helped while thinking about the following change. This change should be invariant. Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-02-23selinux: Fix the NetLabel glue code for setsockopt()Paul Moore1-1/+3
At some point we (okay, I) managed to break the ability for users to use the setsockopt() syscall to set IPv4 options when NetLabel was not active on the socket in question. The problem was noticed by someone trying to use the "-R" (record route) option of ping: # ping -R 10.0.0.1 ping: record route: No message of desired type The solution is relatively simple, we catch the unlabeled socket case and clear the error code, allowing the operation to succeed. Please note that we still deny users the ability to override IPv4 options on socket's which have NetLabel labeling active; this is done to ensure the labeling remains intact. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: James Morris <jmorris@namei.org>
2009-02-23cipso: Fix documentation commentPaul Moore1-2/+7
The CIPSO protocol engine incorrectly stated that the FIPS-188 specification could be found in the kernel's Documentation directory. This patch corrects that by removing the comment and directing users to the FIPS-188 documented hosted online. For the sake of completeness I've also included a link to the CIPSO draft specification on the NetLabel website. Thanks to Randy Dunlap for spotting the error and letting me know. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: James Morris <jmorris@namei.org>
2009-02-22PM: Split up sysdev_[suspend|resume] from device_power_[down|up], fixIngo Molnar1-5/+2
Impact: module build fix Fix: ERROR: "sysdev_resume" [arch/x86/kernel/apm.ko] undefined! ERROR: "sysdev_suspend" [arch/x86/kernel/apm.ko] undefined! As these APIs are now used by the APM driver, which can be built as a module. Also fix a few extra (and inconsistent) newlines in comment blocks preceding these functions. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-22docbook: split kernel-api for device-driversRandy Dunlap3-378/+419
The kernel-api docbook was much larger than any of the others, so processing it took longer and needed some docbook extras in some cases, so split it into kernel-api (infrastructure etc.) and device drivers/device subsystems. This allows these docbooks to be generated in parallel. (This reduced the docbook processing time on my 4-proc system with make -j4 from about 5min:16sec to about 2min:01sec.) The chapters that were moved from kernel-api to device-drivers are: Driver Basics Device drivers infrastructure Parallel Port Devices Message-based devices Sound Devices 16x50 UART Driver Frame Buffer Library Input Subsystem Serial Peripheral Interface (SPI) I2C and SMBus Subsystem Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-22PM: Split up sysdev_[suspend|resume] from device_power_[down|up]Rafael J. Wysocki8-7/+38
Move the sysdev_suspend/resume from the callee to the callers, with no real change in semantics, so that we can rework the disabling of interrupts during suspend/hibernation. This is based on an earlier patch from Linus. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-22x86: Add IRQF_TIMER to legacy x86 timer interrupt descriptorsLinus Torvalds4-4/+4
Right now nobody cares, but the suspend/resume code will eventually want to suspend device interrupts without suspending the timer, and will depend on this flag to know. The modern x86 timer infrastructure uses the local APIC timers and never shows up as a device interrupt at all, so it isn't affected and doesn't need any of this. Cc: Rafael J. Wysocki <rjw@sisk.pl> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-22PATCH [2/2] Documentation/filesystems/sysfs.txt: fix descriptions of device attributesMike Murphy1-22/+28
Fix descriptions of device attributes to be consistent with the actual implementations in include/linux/device.h Signed-off-by: Mike Murphy <mamurph[at]cs.clemson.edu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-22PATCH [1/2] Documentation/driver-model/device.txt: fix struct device_attributeMike Murphy1-3/+5
Fix the presented definition of struct device_attribute to match the actual definition in include/linux/device.h Signed-off-by: Mike Murphy <mamurph[at]cs.clemson.edu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-22m68k: atari - Rename "mfp" to "st_mfp"Geert Uytterhoeven12-56/+56
http://kisskb.ellerman.id.au/kisskb/buildresult/72115/: | net/mac80211/ieee80211_i.h:327: error: syntax error before 'volatile' | net/mac80211/ieee80211_i.h:350: error: syntax error before '}' token | net/mac80211/ieee80211_i.h:455: error: field 'sta' has incomplete type | distcc[19430] ERROR: compile net/mac80211/main.c on sprygo/32 failed This is caused by | # define mfp ((*(volatile struct MFP*)MFP_BAS)) in arch/m68k/include/asm/atarihw.h, which conflicts with the new "mfp" enum in net/mac80211/ieee80211_i.h. Rename "mfp" to "st_mfp", as it's a way too generic name for a global #define. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-22netns: fix double free at netns creationDaniel Lezcano1-31/+55
This patch fix a double free when a network namespace fails. The previous code does a kfree of the net_generic structure when one of the init subsystem initialization fails. The 'setup_net' function does kfree(ng) and returns an error. The caller, 'copy_net_ns', call net_free on error, and this one calls kfree(net->gen), making this pointer freed twice. This patch make the code symetric, the net_alloc does the net_generic allocation and the net_free frees the net_generic. Signed-off-by: Daniel Lezcano <daniel.lezcano@free.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-22veth : add the set_mac_address capabilityDaniel Lezcano1-4/+5
Fix lost set_mac_address capability. Signed-off-by: Daniel Lezcano <daniel.lezcano@free.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-21sunlance: Beyond ARRAY_SIZE of ib->btx_ringRoel Kluin1-2/+2
Do not go beyond ARRAY_SIZE of ib->btx_ring Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-21ACPI: remove CONFIG_ACPI_SYSTEMBjorn Helgaas2-8/+1
Remove CONFIG_ACPI_SYSTEM. It was always set the same as CONFIG_ACPI, and it had no menu label, so there was no way to set it to anything other than "y". Some things under CONFIG_ACPI_SYSTEM (acpi_irq_handled, acpi_os_gpe_count(), event_is_open, register_acpi_notifier(), etc.) are used unconditionally by the CA, the OSPM, and drivers, so we depend on them always being present. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-02-21fujitsu-laptop: Use RFKILL support bitmask from firmwareTony Vroon1-7/+18
Up until now, we polled the rfkill status for every incoming FUJ02E3 ACPI event. It turns out that the firmware has a bitmask which indicates what rfkill-related state it can report. The rfkill_supported bitmask is now used to avoid polling for rfkill at all in the notification handler if there is no support. Also, it is used in the platform device callbacks. As before we register all callbacks and report "unknown" if the firmware does not give us status updates for that particular bit. This was fed through checkpatch.pl and tested on the S6420, S7020 and P8010 platforms. Signed-off-by: Tony Vroon <tony@linx.net> Tested-by: Stephen Gildea <stepheng+linux@gildea.com> Acked-by: Jonathan Woithe <jwoithe@physics.adelaide.edu.au> Signed-off-by: Len Brown <len.brown@intel.com>
2009-02-21x86_64: Fix S3 fail pathJiri Slaby1-1/+3
As acpi_enter_sleep_state can fail, take this into account in do_suspend_lowlevel and don't return to the do_suspend_lowlevel's caller. This would break (currently) fpu status and preempt count. Technically, this means use `call' instead of `jmp' and `jmp' to the `resume_point' after the `call' (i.e. if acpi_enter_sleep_state returns=fails). `resume_point' will handle the restore of fpu and preempt count gracefully. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com>
2009-02-21x86_64: acpi/wakeup_64 cleanupJiri Slaby1-19/+7
- remove %ds re-set, it's already set in wakeup_long64 - remove double labels and alignment (ENTRY already adds both) - use meaningful resume point labelname - skip alignment while jumping from wakeup_long64 to the resume point - remove .size, .type and unused labels [v2] - added ENDPROCs Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Acked-by: Cyrill Gorcunov <gorcunov@openvz.org> Acked-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com>
2009-02-21PM: Fix suspend_console and resume_console to use only one semaphoreArve Hjønnevåg1-6/+9
This fixes a race where a thread acquires the console while the console is suspended, and the console is resumed before this thread releases it. In this case, the secondary console semaphore would be left locked, and the primary semaphore would be released twice. This in turn would cause the console switch on suspend or resume to hang forever. Note that suspend_console does not actually lock the console for clients that use acquire_console_sem, it only locks it for clients that use try_acquire_console_sem. If we change suspend_console to fully lock the console, then the kernel may deadlock on suspend. One client of try_acquire_console_sem is acquire_console_semaphore_for_printk, which uses it to prevent printk from using the console while it is suspended. Signed-off-by: Arve Hjønnevåg <arve@android.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Len Brown <lenb@kernel.org> Cc: Greg KH <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-21PM: Wait for console in resumeArve Hjønnevåg1-0/+6
Avoids later waking up to a blinking cursor if the device woke up and returned to sleep before the console switch happened. Signed-off-by: Brian Swetland <swetland@google.com> Signed-off-by: Arve Hjønnevåg <arve@android.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Len Brown <lenb@kernel.org> Cc: Greg KH <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-21PM: Fix pm_notifiers during user mode hibernationAndrey Borzenkov1-4/+4
Snapshot device is opened with O_RDONLY during suspend and O_WRONLY durig resume. Make sure we also call notifiers with correct parameter telling them what we are really doing. Signed-off-by: Andrey Borzenkov <arvidjaar@mail.ru> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Len Brown <lenb@kernel.org> Cc: Greg KH <gregkh@suse.de> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-21swsusp: clean up shrink_all_zones()Johannes Weiner1-12/+11
Move local variables to innermost possible scopes and use local variables to cache calculations/reads done more than once. No change in functionality (intended). Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Len Brown <lenb@kernel.org> Cc: Greg KH <gregkh@suse.de> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-21swsusp: dont fiddle with swappinessJohannes Weiner1-4/+1
sc.swappiness is not used in the swsusp memory shrinking path, do not set it. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Len Brown <lenb@kernel.org> Cc: Greg KH <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-21PM: fix build for CONFIG_PM unsetRafael J. Wysocki2-1/+2
Compilation of kprobes.c with CONFIG_PM unset is broken due to some broken config dependncies. Fix that. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Len Brown <lenb@kernel.org> Cc: Greg KH <gregkh@suse.de> Reported-by: Ingo Molnar <mingo@elte.hu> Tested-by: Masami Hiramatsu <mhiramat@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-21PM/hibernate: fix "swap breaks after hibernation failures"Alan Jenkins1-2/+2
http://bugzilla.kernel.org/show_bug.cgi?id=12239 The image writing code dropped a reference to the current swap device. This doesn't show up if the hibernation succeeds - because it doesn't affect the image which gets resumed. But it means multiple _failed_ hibernations end up freeing the swap device while it is still use! swsusp_write() finds the block device for the swap file using swap_type_of(). It then uses blkdev_get() / blkdev_put() to open and close the block device. Unfortunately, blkdev_get() assumes ownership of the inode of the block_device passed to it. So blkdev_put() calls iput() on the inode. This is by design and other callers expect this behaviour. The fix is for swap_type_of() to take a reference on the inode using bdget(). Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Len Brown <lenb@kernel.org> Cc: Greg KH <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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