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2011-11-06Merge branches 'acpi', 'idle', 'mrst-pmu' and 'pm-tools' into nextLen Brown
2011-11-06Merge branches 'atomic-io', 'lockdep', 'misc', 'pm-profile' and ↵Len Brown
'pnp-cleanup' into acpi
2011-11-06cpuidle: Single/Global registration of idle statesDeepthi Dharwar
This patch makes the cpuidle_states structure global (single copy) instead of per-cpu. The statistics needed on per-cpu basis by the governor are kept per-cpu. This simplifies the cpuidle subsystem as state registration is done by single cpu only. Having single copy of cpuidle_states saves memory. Rare case of asymmetric C-states can be handled within the cpuidle driver and architectures such as POWER do not have asymmetric C-states. Having single/global registration of all the idle states, dynamic C-state transitions on x86 are handled by the boot cpu. Here, the boot cpu would disable all the devices, re-populate the states and later enable all the devices, irrespective of the cpu that would receive the notification first. Reference: https://lkml.org/lkml/2011/4/25/83 Signed-off-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com> Signed-off-by: Trinabh Gupta <g.trinabh@gmail.com> Tested-by: Jean Pihet <j-pihet@ti.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Acked-by: Arjan van de Ven <arjan@linux.intel.com> Acked-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Len Brown <len.brown@intel.com>
2011-11-06cpuidle: Split cpuidle_state structure and move per-cpu statistics fieldsDeepthi Dharwar
This is the first step towards global registration of cpuidle states. The statistics used primarily by the governor are per-cpu and have to be split from rest of the fields inside cpuidle_state, which would be made global i.e. single copy. The driver_data field is also per-cpu and moved. Signed-off-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com> Signed-off-by: Trinabh Gupta <g.trinabh@gmail.com> Tested-by: Jean Pihet <j-pihet@ti.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Acked-by: Arjan van de Ven <arjan@linux.intel.com> Acked-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Len Brown <len.brown@intel.com>
2011-11-06cpuidle: Remove CPUIDLE_FLAG_IGNORE and dev->prepare()Deepthi Dharwar
The cpuidle_device->prepare() mechanism causes updates to the cpuidle_state[].flags, setting and clearing CPUIDLE_FLAG_IGNORE to tell the governor not to chose a state on a per-cpu basis at run-time. State demotion is now handled by the driver and it returns the actual state entered. Hence, this mechanism is not required. Also this removes per-cpu flags from cpuidle_state enabling it to be made global. Reference: https://lkml.org/lkml/2011/3/25/52 Signed-off-by: Deepthi Dharwar <deepthi@linux.vnet.ibm> Signed-off-by: Trinabh Gupta <g.trinabh@gmail.com> Tested-by: Jean Pihet <j-pihet@ti.com> Acked-by: Arjan van de Ven <arjan@linux.intel.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Len Brown <len.brown@intel.com>
2011-11-06cpuidle: Move dev->last_residency update to driver enter routine; remove ↵Deepthi Dharwar
dev->last_state Cpuidle governor only suggests the state to enter using the governor->select() interface, but allows the low level driver to override the recommended state. The actual entered state may be different because of software or hardware demotion. Software demotion is done by the back-end cpuidle driver and can be accounted correctly. Current cpuidle code uses last_state field to capture the actual state entered and based on that updates the statistics for the state entered. Ideally the driver enter routine should update the counters, and it should return the state actually entered rather than the time spent there. The generic cpuidle code should simply handle where the counters live in the sysfs namespace, not updating the counters. Reference: https://lkml.org/lkml/2011/3/25/52 Signed-off-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com> Signed-off-by: Trinabh Gupta <g.trinabh@gmail.com> Tested-by: Jean Pihet <j-pihet@ti.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Acked-by: Arjan van de Ven <arjan@linux.intel.com> Acked-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Len Brown <len.brown@intel.com>
2011-11-06ACPI: Fix CONFIG_ACPI_DOCK=n compiler warningBart Van Assche
Recently the ACPI ops structs were constified but the inline version of register_hotplug_dock_device() was overlooked (see also commit 9c8b04b, June 25 2011). Update the inline function register_hotplug_dock_device() that is enabled with CONFIG_ACPI_DOCK=n too. This patch fixes at least the following compiler warnings: drivers/ata/libata-acpi.c: In function .ata_acpi_associate.: drivers/ata/libata-acpi.c:266:11: warning: passing argument 2 of .register_hotplug_dock_device. discards qualifiers from pointer target type include/acpi/acpi_drivers.h:146:19: note: expected .struct acpi_dock_ops *. but argument is of type .const struct acpi_dock_ops *. drivers/ata/libata-acpi.c:275:11: warning: passing argument 2 of .register_hotplug_dock_device. discards qualifiers from pointer target type include/acpi/acpi_drivers.h:146:19: note: expected .struct acpi_dock_ops *. but argument is of type .const struct acpi_dock_ops *. Cc: stable@vger.kernel.org Signed-off-by: Len Brown <len.brown@intel.com>
2011-11-06ACPI: Export FADT pm_profile integer value to userspaceThomas Renninger
There are a lot userspace approaches to detect the usage of the platform (laptop, workstation, server, ...) and adjust kernel tunables accordingly (io/process scheduler, power management, ...). These approaches need constant maintaining and are ugly to implement (detect PCMCIA controller -> laptop, does not work on recent systems anymore, ...) On ACPI systems there is an easy and reliable way (if implemented in BIOS and most recent platforms have this value set). -> export it to userspace. Signed-off-by: Thomas Renninger <trenn@suse.de> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com>
2011-11-06thermal: Prevent polling from happening during system suspendRafael J. Wysocki
The thermal driver should use a freezable workqueue to schedule polling to prevent thermal_zone_device_update() from being run during system suspend, when the devices it relies on may be inactive. Make it use the system freezable workqueue for this purpose. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com>
2011-11-06ACPI: Drop ACPI_NO_HARDWARE_INITRafael J. Wysocki
ACPI_NO_HARDWARE_INIT is only used by acpi_early_init() and acpi_bus_init() when calling acpi_enable_subsystem(), but acpi_enable_subsystem() doesn't check that flag, so it can be dropped. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com>
2011-11-06ACPI atomicio: Convert width in bits to bytes in __acpi_ioremap_fast()Luck, Tony
Callers to __acpi_ioremap_fast() pass the bit_width that they found in the acpi_generic_address structure. Convert from bits to bytes when passing to __acpi_find_iomap() - as it wants to see bytes, not bits. cc: stable@kernel.org Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2011-11-06PNPACPI: Simplify disabled resource registrationWitold Szczeponik
The attached patch simplifies 29df8d8f8702f0f53c1375015f09f04bc8d023c1. As the "pnp_xxx" structs are not designed to cope with IORESOURCE_DISABLED, and hence no code can test for this value, setting this value is actually a "no op" and can be skipped altogether. It is sufficient to remove the checks for "empty" resources and continue processing. The patch is applied against 3.1. Signed-off-by: Witold Szczeponik <Witold.Szczeponik@gmx.net> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Len Brown <len.brown@intel.com>
2011-11-06ACPI: Fix possible recursive locking in hwregs.cRakib Mullick
Calling pm-suspend might trigger a recursive lock in it's code path. In function acpi_hw_clear_acpi_status, acpi_os_acquire_lock holds the lock acpi_gbl_hardware_lock before calling acpi_hw_register_write(), then without releasing acpi_gbl_hardware_lock, this function calls acpi_ev_walk_gpe_list, which tries to hold acpi_gbl_gpe_lock. Both acpi_gbl_hardware_lock and acpi_gbl_gpe_lock are at same lock-class and which might cause lock recursion deadlock. Following patch fixes this scenario by just releasing acpi_gbl_hardware_lock before calling acpi_ev_walk_gpe_list. Changes since v0(https://lkml.org/lkml/2011/9/21/355): - Fix changelog, thanks to Lin Ming. Changes since v1 (https://lkml.org/lkml/2011/11/3/89): - Update changelog and rename goto label, courtesy Srivatsa S. Bhat. Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com> Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com>
2011-11-06ACPI: use kstrdup()Thomas Meyer
Use kstrdup rather than duplicating its implementation The semantic patch that makes this output is available in scripts/coccinelle/api/kstrdup.cocci. More information about semantic patching is available at http://coccinelle.lip6.fr/ Signed-off-by: Thomas Meyer <thomas@m3y3r.de> Signed-off-by: Len Brown <len.brown@intel.com>
2011-11-06mrst pmu: update commentLen Brown
referenced MeeGo, in particular, but really means Linux, in general. Signed-off-by: Len Brown <len.brown@intel.com>
2011-10-24Linux 3.1v3.1Linus Torvalds
2011-10-24Merge git://git.infradead.org/iommu-2.6Linus Torvalds
* git://git.infradead.org/iommu-2.6: intel-iommu: fix superpage support in pfn_to_dma_pte() intel-iommu: set iommu_superpage on VM domains to lowest common denominator intel-iommu: fix return value of iommu_unmap() API MAINTAINERS: Update VT-d entry for drivers/pci -> drivers/iommu move intel-iommu: Export a flag indicating that the IOMMU is used for iGFX. intel-iommu: Workaround IOTLB hang on Ironlake GPU intel-iommu: Fix AB-BA lockdep report
2011-10-24Merge branch 'for-linus' of http://people.redhat.com/agk/git/linux-dmLinus Torvalds
* 'for-linus' of http://people.redhat.com/agk/git/linux-dm: dm kcopyd: fix job_pool leak
2011-10-24x86: Fix S4 regressionTakashi Iwai
Commit 4b239f458 ("x86-64, mm: Put early page table high") causes a S4 regression since 2.6.39, namely the machine reboots occasionally at S4 resume. It doesn't happen always, overall rate is about 1/20. But, like other bugs, once when this happens, it continues to happen. This patch fixes the problem by essentially reverting the memory assignment in the older way. Signed-off-by: Takashi Iwai <tiwai@suse.de> Cc: <stable@kernel.org> Cc: Rafael J. Wysocki <rjw@sisk.pl> Cc: Yinghai Lu <yinghai.lu@oracle.com> [ We'll hopefully find the real fix, but that's too late for 3.1 now ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-10-23dm kcopyd: fix job_pool leakAlasdair G Kergon
Fix memory leak introduced by commit a6e50b409d3f9e0833e69c3c9cca822e8fa4adbb (dm snapshot: skip reading origin when overwriting complete chunk). When allocating a set of jobs from kc->job_pool, job->master_job must be set (to point to itself) so that the mempool item gets freed when the master_job completes. master_job was introduced by commit c6ea41fbbe08f270a8edef99dc369faf809d1bd6 (dm kcopyd: preallocate sub jobs to avoid deadlock) Reported-by: Michael Leun <ml@newton.leun.net> Cc: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2011-10-23Merge branch 'samsung-fixes-4' of git://github.com/kgene/linux-samsungLinus Torvalds
* 'samsung-fixes-4' of git://github.com/kgene/linux-samsung: ARM: S3C24XX: Fix s3c24xx build errors if !CONFIG_PM ARM: S5P: fix offset calculation on gpio-interrupt
2011-10-23Merge branch 'hwmon-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging * 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (w83627ehf) Fix negative 8-bit temperature values
2011-10-22ARM: S3C24XX: Fix s3c24xx build errors if !CONFIG_PMDomenico Andreoli
v2: - register_syscore_ops(&s3c24xx_irq_syscore_ops) does not need to be conditionally compiled out, it is already optimized out on !CONFIG_PM - fix also s3c2412 and s3c2416 affected by the same build issue v1: s3c2440.c fails to build if !CONFIG_PM because in such case s3c2410_pm_syscore_ops is not defined. Same error should happen also in s3c2410.c and s3c2442.c Signed-off-by: Domenico Andreoli <cavokz@gmail.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-10-21Merge git://github.com/herbertx/cryptoLinus Torvalds
* git://github.com/herbertx/crypto: crypto: ghash - Avoid null pointer dereference if no key is set
2011-10-21Merge branch 'fix/hda' of git://github.com/tiwai/soundLinus Torvalds
* 'fix/hda' of git://github.com/tiwai/sound: ALSA: HDA: conexant support for Lenovo T520/W520 ALSA: hda - Add position_fix quirk for Dell Inspiron 1010
2011-10-21crypto: ghash - Avoid null pointer dereference if no key is setNick Bowler
The ghash_update function passes a pointer to gf128mul_4k_lle which will be NULL if ghash_setkey is not called or if the most recent call to ghash_setkey failed to allocate memory. This causes an oops. Fix this up by returning an error code in the null case. This is trivially triggered from unprivileged userspace through the AF_ALG interface by simply writing to the socket without setting a key. The ghash_final function has a similar issue, but triggering it requires a memory allocation failure in ghash_setkey _after_ at least one successful call to ghash_update. BUG: unable to handle kernel NULL pointer dereference at 00000670 IP: [<d88c92d4>] gf128mul_4k_lle+0x23/0x60 [gf128mul] *pde = 00000000 Oops: 0000 [#1] PREEMPT SMP Modules linked in: ghash_generic gf128mul algif_hash af_alg nfs lockd nfs_acl sunrpc bridge ipv6 stp llc Pid: 1502, comm: hashatron Tainted: G W 3.1.0-rc9-00085-ge9308cf #32 Bochs Bochs EIP: 0060:[<d88c92d4>] EFLAGS: 00000202 CPU: 0 EIP is at gf128mul_4k_lle+0x23/0x60 [gf128mul] EAX: d69db1f0 EBX: d6b8ddac ECX: 00000004 EDX: 00000000 ESI: 00000670 EDI: d6b8ddac EBP: d6b8ddc8 ESP: d6b8dda4 DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 Process hashatron (pid: 1502, ti=d6b8c000 task=d6810000 task.ti=d6b8c000) Stack: 00000000 d69db1f0 00000163 00000000 d6b8ddc8 c101a520 d69db1f0 d52aa000 00000ff0 d6b8dde8 d88d310f d6b8a3f8 d52aa000 00001000 d88d502c d6b8ddfc 00001000 d6b8ddf4 c11676ed d69db1e8 d6b8de24 c11679ad d52aa000 00000000 Call Trace: [<c101a520>] ? kmap_atomic_prot+0x37/0xa6 [<d88d310f>] ghash_update+0x85/0xbe [ghash_generic] [<c11676ed>] crypto_shash_update+0x18/0x1b [<c11679ad>] shash_ahash_update+0x22/0x36 [<c11679cc>] shash_async_update+0xb/0xd [<d88ce0ba>] hash_sendpage+0xba/0xf2 [algif_hash] [<c121b24c>] kernel_sendpage+0x39/0x4e [<d88ce000>] ? 0xd88cdfff [<c121b298>] sock_sendpage+0x37/0x3e [<c121b261>] ? kernel_sendpage+0x4e/0x4e [<c10b4dbc>] pipe_to_sendpage+0x56/0x61 [<c10b4e1f>] splice_from_pipe_feed+0x58/0xcd [<c10b4d66>] ? splice_from_pipe_begin+0x10/0x10 [<c10b51f5>] __splice_from_pipe+0x36/0x55 [<c10b4d66>] ? splice_from_pipe_begin+0x10/0x10 [<c10b6383>] splice_from_pipe+0x51/0x64 [<c10b63c2>] ? default_file_splice_write+0x2c/0x2c [<c10b63d5>] generic_splice_sendpage+0x13/0x15 [<c10b4d66>] ? splice_from_pipe_begin+0x10/0x10 [<c10b527f>] do_splice_from+0x5d/0x67 [<c10b6865>] sys_splice+0x2bf/0x363 [<c129373b>] ? sysenter_exit+0xf/0x16 [<c104dc1e>] ? trace_hardirqs_on_caller+0x10e/0x13f [<c129370c>] sysenter_do_call+0x12/0x32 Code: 83 c4 0c 5b 5e 5f c9 c3 55 b9 04 00 00 00 89 e5 57 8d 7d e4 56 53 8d 5d e4 83 ec 18 89 45 e0 89 55 dc 0f b6 70 0f c1 e6 04 01 d6 <f3> a5 be 0f 00 00 00 4e 89 d8 e8 48 ff ff ff 8b 45 e0 89 da 0f EIP: [<d88c92d4>] gf128mul_4k_lle+0x23/0x60 [gf128mul] SS:ESP 0068:d6b8dda4 CR2: 0000000000000670 ---[ end trace 4eaa2a86a8e2da24 ]--- note: hashatron[1502] exited with preempt_count 1 BUG: scheduling while atomic: hashatron/1502/0x10000002 INFO: lockdep is turned off. [...] Signed-off-by: Nick Bowler <nbowler@elliptictech.com> Cc: stable@kernel.org [2.6.37+] Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21ARM: S5P: fix offset calculation on gpio-interruptMarek Szyprowski
Offsets of the irq controller registers were calculated correctly only for first GPIO bank. This patch fixes calculation of the register offsets for all GPIO banks. Reported-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-10-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc: Add alignment flag to PCI expansion resources sparc: Avoid calling sigprocmask() sparc: Use set_current_blocked() sparc32,leon: SRMMU MMU Table probe fix
2011-10-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: fib_rules: fix unresolved_rules counting r8169: fix wrong eee setting for rlt8111evl r8169: fix driver shutdown WoL regression. ehea: Change maintainer to me pptp: pptp_rcv_core() misses pskb_may_pull() call tproxy: copy transparent flag when creating a time wait pptp: fix skb leak in pptp_xmit() bonding: use local function pointer of bond->recv_probe in bond_handle_frame smsc911x: Add support for SMSC LAN89218 tg3: negate USE_PHYLIB flag check netconsole: enable netconsole can make net_device refcnt incorrent bluetooth: Properly clone LSM attributes to newly created child connections l2tp: fix a potential skb leak in l2tp_xmit_skb() bridge: fix hang on removal of bridge via netlink x25: Prevent skb overreads when checking call user data x25: Handle undersized/fragmented skbs x25: Validate incoming call user data lengths udplite: fast-path computation of checksum coverage IPVS netns shutdown/startup dead-lock netfilter: nf_conntrack: fix event flooding in GRE protocol tracker
2011-10-20hwmon: (w83627ehf) Fix negative 8-bit temperature valuesJean Delvare
Since 8-bit temperature values are now handled in 16-bit struct members, values have to be cast to s8 for negative temperatures to be properly handled. This is broken since kernel version 2.6.39 (commit bce26c58df86599c9570cee83eac58bdaae760e4.) Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Guenter Roeck <guenter.roeck@ericsson.com> Cc: stable@kernel.org # 2.6.39+ Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-10-19mm: fix race between mremap and removing migration entryHugh Dickins
I don't usually pay much attention to the stale "? " addresses in stack backtraces, but this lucky report from Pawel Sikora hints that mremap's move_ptes() has inadequate locking against page migration. 3.0 BUG_ON(!PageLocked(p)) in migration_entry_to_page(): kernel BUG at include/linux/swapops.h:105! RIP: 0010:[<ffffffff81127b76>] [<ffffffff81127b76>] migration_entry_wait+0x156/0x160 [<ffffffff811016a1>] handle_pte_fault+0xae1/0xaf0 [<ffffffff810feee2>] ? __pte_alloc+0x42/0x120 [<ffffffff8112c26b>] ? do_huge_pmd_anonymous_page+0xab/0x310 [<ffffffff81102a31>] handle_mm_fault+0x181/0x310 [<ffffffff81106097>] ? vma_adjust+0x537/0x570 [<ffffffff81424bed>] do_page_fault+0x11d/0x4e0 [<ffffffff81109a05>] ? do_mremap+0x2d5/0x570 [<ffffffff81421d5f>] page_fault+0x1f/0x30 mremap's down_write of mmap_sem, together with i_mmap_mutex or lock, and pagetable locks, were good enough before page migration (with its requirement that every migration entry be found) came in, and enough while migration always held mmap_sem; but not enough nowadays, when there's memory hotremove and compaction. The danger is that move_ptes() lets a migration entry dodge around behind remove_migration_pte()'s back, so it's in the old location when looking at the new, then in the new location when looking at the old. Either mremap's move_ptes() must additionally take anon_vma lock(), or migration's remove_migration_pte() must stop peeking for is_swap_entry() before it takes pagetable lock. Consensus chooses the latter: we prefer to add overhead to migration than to mremapping, which gets used by JVMs and by exec stack setup. Reported-and-tested-by: Paweł Sikora <pluto@agmk.net> Signed-off-by: Hugh Dickins <hughd@google.com> Acked-by: Andrea Arcangeli <aarcange@redhat.com> Acked-by: Mel Gorman <mgorman@suse.de> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-10-19sparc: Add alignment flag to PCI expansion resourcesKjetil Oftedal
Currently no type of alignment is specified for PCI expansion roms while parsing the openfirmware tree. This causes calls to pci_map_rom() to fail. IORESOURCE_SIZEALIGN is the default alignment used for rom resouces in pci/probe.c, and has been verified to work with various cards on a ultra 10. Signed-off-By: Kjetil Oftedal <oftedal@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-19fib_rules: fix unresolved_rules countingYan, Zheng
we should decrease ops->unresolved_rules when deleting a unresolved rule. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-19r8169: fix wrong eee setting for rlt8111evlhayeswang
Correct the wrong parameter for setting EEE for RTL8111E-VL. Signed-off-by: Hayes Wang <hayeswang@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-19r8169: fix driver shutdown WoL regression.françois romieu
Due to commit 92fc43b4159b518f5baae57301f26d770b0834c9 ("r8169: modify the flow of the hw reset."), rtl8169_hw_reset stomps during driver shutdown on RxConfig bits which are needed for WOL on some versions of the hardware. As these bits were formerly set from the r81{0x, 68}_pll_power_down methods, factor them out for use in the driver shutdown (rtl_shutdown) handler. I favored __rtl8169_get_wol() -hardware state indication- over RTL_FEATURE_WOL as the latter has become a good candidate for removal. Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Cc: Hayes <hayeswang@realtek.com> Tested-by: Marc Ballarin <ballarin.marc@gmx.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-19ehea: Change maintainer to meThadeu Lima de Souza Cascardo
Breno Leitao has passed the maintainership to me. Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com> Cc: Breno Leitao <leitao@linux.vnet.ibm.com> Acked-by: Breno Leitão <leitao@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-19Merge branch 'v4l_for_linus' of git://linuxtv.org/mchehab/for_linusLinus Torvalds
* 'v4l_for_linus' of git://linuxtv.org/mchehab/for_linus: [media] videodev: fix a NULL pointer dereference in v4l2_device_release()
2011-10-19Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/radeon/kms/atom: fix handling of FB scratch indices drm/radeon/kms/DCE4.1: fix Select_CrtcSource EncodeMode setting for DP bridges (v2) drm/radeon/kms/DCE4.1: ss is not supported on the internal pplls drm/radeon/kms/DCE4.1: fix dig encoder to transmitter mapping ttm: Fix error-path using an uninitialized value
2011-10-19[media] videodev: fix a NULL pointer dereference in v4l2_device_release()Antonio Ospite
The change in 8280b66 does not cover the case when v4l2_dev is already NULL, fix that. With a Kinect sensor, seen as an USB camera using GSPCA in this context, a NULL pointer dereference BUG can be triggered by just unplugging the device after the camera driver has been loaded. Signed-off-by: Antonio Ospite <ospite@studenti.unina.it> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-10-19intel-iommu: fix superpage support in pfn_to_dma_pte()Allen Kay
If target_level == 0, current code breaks out of the while-loop if SUPERPAGE bit is set. We should also break out if PTE is not present. If we don't do this, KVM calls to iommu_iova_to_phys() will cause pfn_to_dma_pte() to create mapping for 4KiB pages. Signed-off-by: Allen Kay <allen.m.kay@intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-10-19intel-iommu: set iommu_superpage on VM domains to lowest common denominatorAllen Kay
set dmar->iommu_superpage field to the smallest common denominator of super page sizes supported by all active VT-d engines. Initialize this field in intel_iommu_domain_init() API so intel_iommu_map() API will be able to use iommu_superpage field to determine the appropriate super page size to use. Signed-off-by: Allen Kay <allen.m.kay@intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-10-19intel-iommu: fix return value of iommu_unmap() APIAllen Kay
iommu_unmap() API expects IOMMU drivers to return the actual page order of the address being unmapped. Previous code was just returning page order passed in from the caller. This patch fixes this problem. Signed-off-by: Allen Kay <allen.m.kay@intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-10-19MAINTAINERS: Update VT-d entry for drivers/pci -> drivers/iommu moveRoland Dreier
Commit 166e9278a3f9 ("x86/ia64: intel-iommu: move to drivers/iommu/") moved the VT-d driver to drivers/iommu, but left the "F:" line in MAINTAINERS pointing to drivers/pci, which breaks scripts/get_maintainer.pl. Signed-off-by: Roland Dreier <roland@purestorage.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-10-19drm/radeon/kms/atom: fix handling of FB scratch indicesAlex Deucher
FB scratch indices are dword indices, but we were treating them as byte indices. As such, we were getting the wrong FB scratch data for non-0 indices. Fix the indices and guard the indexing against indices larger than the scratch allocation. Fixes memory corruption on some boards if data was written past the end of the FB scratch array. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Reported-by: Dave Airlie <airlied@redhat.com> Tested-by: Dave Airlie <airlied@redhat.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-10-19pptp: pptp_rcv_core() misses pskb_may_pull() callEric Dumazet
e1000e uses paged frags, so any layer incorrectly pulling bytes from skb can trigger a BUG in skb_pull() [951.142737] [<ffffffff813d2f36>] skb_pull+0x15/0x17 [951.142737] [<ffffffffa0286824>] pptp_rcv_core+0x126/0x19a [pptp] [951.152725] [<ffffffff813d17c4>] sk_receive_skb+0x69/0x105 [951.163558] [<ffffffffa0286993>] pptp_rcv+0xc8/0xdc [pptp] [951.165092] [<ffffffffa02800a3>] gre_rcv+0x62/0x75 [gre] [951.165092] [<ffffffff81410784>] ip_local_deliver_finish+0x150/0x1c1 [951.177599] [<ffffffff81410634>] ? ip_local_deliver_finish+0x0/0x1c1 [951.177599] [<ffffffff81410846>] NF_HOOK.clone.7+0x51/0x58 [951.177599] [<ffffffff81410996>] ip_local_deliver+0x51/0x55 [951.177599] [<ffffffff814105b9>] ip_rcv_finish+0x31a/0x33e [951.177599] [<ffffffff8141029f>] ? ip_rcv_finish+0x0/0x33e [951.204898] [<ffffffff81410846>] NF_HOOK.clone.7+0x51/0x58 [951.214651] [<ffffffff81410bb5>] ip_rcv+0x21b/0x246 pptp_rcv_core() is a nice example of a function assuming everything it needs is available in skb head. Reported-by: Bradley Peterson <despite@gmail.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-19tproxy: copy transparent flag when creating a time waitKOVACS Krisztian
The transparent socket option setting was not copied to the time wait socket when an inet socket was being replaced by a time wait socket. This broke the --transparent option of the socket match and may have caused that FIN packets belonging to sockets in FIN_WAIT2 or TIME_WAIT state were being dropped by the packet filter. Signed-off-by: KOVACS Krisztian <hidden@balabit.hu> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-19pptp: fix skb leak in pptp_xmit()Eric Dumazet
In case we cant transmit skb, we must free it Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Dmitry Kozlov <xeb@mail.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-19bonding: use local function pointer of bond->recv_probe in bond_handle_frameMitsuo Hayasaka
The bond->recv_probe is called in bond_handle_frame() when a packet is received, but bond_close() sets it to NULL. So, a panic occurs when both functions work in parallel. Why this happen: After null pointer check of bond->recv_probe, an sk_buff is duplicated and bond->recv_probe is called in bond_handle_frame. So, a panic occurs when bond_close() is called between the check and call of bond->recv_probe. Patch: This patch uses a local function pointer of bond->recv_probe in bond_handle_frame(). So, it can avoid the null pointer dereference. Signed-off-by: Mitsuo Hayasaka <mitsuo.hayasaka.hu@hitachi.com> Cc: Jay Vosburgh <fubar@us.ibm.com> Cc: Andy Gospodarek <andy@greyhouse.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: WANG Cong <xiyou.wangcong@gmail.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-19smsc911x: Add support for SMSC LAN89218Phil Edworthy
LAN89218 is register compatible with LAN911x. Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-18tg3: negate USE_PHYLIB flag checkJiri Pirko
USE_PHYLIB flag in tg3_remove_one() is being checked incorrectly. This results tg3_phy_fini->phy_disconnect is never called and when tg3 module is removed. In my case this resulted in panics in phy_state_machine calling function phydev->adjust_link. So correct this check. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Acked-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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