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2013-06-15clk: gate: add CLK_GATE_HIWORD_MASKHaojian Zhuang
In Rockchip Cortex-A9 based chips, they don't use paradigm of reading-changing-writing the register contents. Instead they use a hiword mask to indicate the changed bits. When b1 should be set as gate, it also needs to indicate the change by setting hiword mask (b1 << 16). The patch adds gate flag for this usage. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-06-15clk: divider: add CLK_DIVIDER_HIWORD_MASK flagHaojian Zhuang
In both Hisilicon & Rockchip Cortex-A9 based chips, they don't use the paradigm of reading-changing-writing the register contents. Instead they use a hiword mask to indicate the changed bits. When b01 should be set as setting divider, it also needs to indicate the change by setting hiword mask (b11 << 16). The patch adds divider flag for this usage. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-06-15clk: mux: add CLK_MUX_HIWORD_MASKHaojian Zhuang
In both Hisilicon & Rockchip Cortex-A9 based chips, they don't use the paradigm of reading-changing-writing the register contents. Instead they use a hiword mask to indicate the changed bits. When b01 should be set as switching mux, it also needs to indicate the change by setting hiword mask (b11 << 16). The patch adds mux flag for this usage. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-06-16Merge tag 'omap-pm-v3.11/avs' of ↵Rafael J. Wysocki
git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into pm-omap Pull PM / AVS: SmartReflex: misc. cleanups for 3.11 from Kevin Hilman.
2013-06-16drm/i915: Restore fences after resume and GPU resetsChris Wilson
Stéphane Marchesin found that fences for pinned objects (i.e. the scanout) were not being restored upon resume, leading to corruption on the display and reference counting issues. This is due to a bug in commit 312817a39f17dbb4de000165b5b724e3728cd91c [2.6.38] Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Mon Nov 22 11:50:11 2010 +0000 drm/i915: Only save and restore fences for UMS that zapped the pinned fences even though they were in use. Fortuitously, whilst we forced a VT switch during suspend and resume, no fences were ever pinned at the time. However, we now can do switchless S3 transitions and so the old bug finally surfaces. Reported-by: Stéphane Marchesin <marcheu@chromium.org> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Stéphane Marchesin <marcheu@chromium.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-06-16ACPICA: Clear events initialized flag upon event component terminationTomasz Nowicki
Clear this flag to allow clean startup and even double termination. ACPICA BZ 1013. Tomasz Nowicki <tomasz.nowicki@linaro.org> References: https://bugs.acpica.org/show_bug.cgi?id=1013 Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Reviewed-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-06-16ACPICA: Fix possible memory leak in GPE init error pathTomasz Nowicki
Some GPE blocks were not deleted. ACPICA BZ 1018. Tomasz Nowicki <tomasz.nowicki@linaro.org> References: https://bugs.acpica.org/show_bug.cgi?id=1018 Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Reviewed-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-06-16ACPICA: ACPICA Termination: Delete global lock pending lockTomasz Nowicki
Add deletion of this lock, used for the global lock. ACPICA BZ 1012. Tomasz Nowicki <tomasz.nowicki@linaro.org> References: https://bugs.acpica.org/show_bug.cgi?id=1012 Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Reviewed-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-06-16ACPICA: Update interface to acpi_ut_valid_acpi_name()Bob Moore
Clean up the interface by making the input argument a char * string instead of a UINT32 name. This is easier to use for all callers and eliminates casting to *(UINT32*) Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-06-16ACPICA: Do not use extended sleep registers unless HW-reduced bit is setLv Zheng
Previous implementation incorrectly used the ACPI 5.0 extended sleep registers if they were simply populated. This caused problems on some non-HW-reduced machines. As per the ACPI spec, they should only be used if the HW-reduced bit is set. Lv Zheng, ACPICA BZ 1020. References: https://bugzilla.kernel.org/show_bug.cgi?id=54181 References: https://bugs.acpica.org/show_bug.cgi?id=1020 Reported-by: Daniel Rowe <bart@fathom13.com> Bisected-by: Brint E. Kriebel <kernel@bekit.net> Cc: 3.4+ <stable@vger.kernel.org> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-06-16ACPICA: Split table print utilities to a new a separate fileBob Moore
Improves configurability of ACPICA. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-06-16ACPICA: Add option to disable loading of SSDTs from the RSDT/XSDTLv Zheng
Optionally do not load any SSDTs from the RSDT/XSDT during initialization. This can be useful for overriding SSDTs using DSDT overriding, thus useful for debugging ACPI problems on some machines. Lv Zheng. ACPICA BZ 1005. References: https://bugs.acpica.org/show_bug.cgi?id=1005 Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-06-16ACPICA: Standardize all switch() blocksChao Guan
After many years, different formatting for switch() has crept in. This change makes every switch block identical. Chao Guan. ACPICA bugzilla 997. References: https://bugs.acpica.org/show_bug.cgi?id=997 Signed-off-by: Chao Guan <chao.guan@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-06-16ACPICA: Split internal error msg routines to a separate fileBob Moore
Improves configurability of ACPICA. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Acked-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-06-16ACPICA: Split buffer dump routines into separate fileBob Moore
To enhance configurability of ACPICA. The new file is utilities/utbuffer.c Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Acked-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-06-16ACPI / scan: Simplify ACPI driver probingRafael J. Wysocki
There is no particular reason why acpi_bus_driver_init() needs to be a separate function and its location with respect to its only caller, acpi_device_probe(), makes the code a bit difficult to follow. Besides, it doesn't really make sense to check if 'device' is not NULL in acpi_bus_driver_init(), because we've already dereferenced dev->driver in acpi_device_probe() at that point and, moreover, 'device' cannot be NULL then, because acpi_device_probe() is called via really_probe() (which also sets dev->driver for that matter). For these reasons, drop acpi_bus_driver_init() altogether and move the remaining code from it directly into acpi_device_probe(). Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-06-15Linux 3.10-rc6v3.10-rc6Linus Torvalds
2013-06-15Merge tag 'fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "These are a little later than I planned on since I got caught up with handling merges for 3.11 most of the week. Another week, another batch of fixes for arm-soc platforms. Again, nothing controversial. A few more than would be ideal, but all are valid fixes. In particular the prima2 panic patch is critical since it fixes a problem where multiplatform kernels panic on all but prima2 hardware." * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: SAMSUNG: pm: Adjust for pinctrl- and DT-enabled platforms ARM: prima2: fix incorrect panic usage arm: mvebu: armada-xp-{gp,openblocks-ax3-4}: specify PCIe range ARM: Kirkwood: handle mv88f6282 cpu in __kirkwood_variant(). ARM: omap3: clock: fix wrong container_of in clock36xx.c ARM: dts: OMAP5: Fix missing PWM capability to timer nodes ARM: dts: omap4-panda|sdp: Fix mux for twl6030 IRQ pin and msecure line ARM: dts: AM33xx: Fix properties on gpmc node arm: omap2: fix AM33xx hwmod infos for UART2 ARM: OMAP3: Fix iva2_pwrdm settings for 3703
2013-06-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Fix RTNL locking in batman-adv, from Matthias Schiffer. 2) Don't allow non-passthrough macvlan devices to set NOPROMISC via netlink, otherwise we can end up with corrupted promisc counter values on the device. From Michael S Tsirkin. 3) Fix stmmac driver build with debugging defines enabled, from Dinh Nguyen. 4) Make sure name string we give in socket address in AF_PACKET is NULL terminated, from Daniel Borkmann. 5) Fix leaking of two uninitialized bytes of memory to userspace in l2tp, from Guillaume Nault. 6) Clear IPCB(skb) before tunneling otherwise we touch dangling IP options state and crash. From Saurabh Mohan. 7) Fix suspend/resume for davinci_mdio by using suspend_late and resume_early. From Mugunthan V N. 8) Don't tag ip_tunnel_init_net and ip_tunnel_delete_net with __net_{init,exit}, they can be called outside of those contexts. From Eric Dumazet. 9) Fix RX length error in sh_eth driver, from Yoshihiro Shimoda. 10) Fix missing sctp_outq initialization in some code paths of SCTP stack, from Neil Horman. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (21 commits) sctp: fully initialize sctp_outq in sctp_outq_init netiucv: Hold rtnl between name allocation and device registration. tulip: Properly check dma mapping result net: sh_eth: fix incorrect RX length error if R8A7740 ip_tunnel: remove __net_init/exit from exported functions drivers: net: davinci_mdio: restore mdio clk divider in mdio resume drivers: net: davinci_mdio: moving mdio resume earlier than cpsw ethernet driver net/ipv4: ip_vti clear skb cb before tunneling. tg3: Wait for boot code to finish after power on l2tp: Fix sendmsg() return value l2tp: Fix PPP header erasure and memory leak bonding: fix igmp_retrans type and two related races bonding: reset master mac on first enslave failure packet: packet_getname_spkt: make sure string is always 0-terminated net: ethernet: stmicro: stmmac: Fix compile error when STMMAC_XMIT_DEBUG used be2net: Fix 32-bit DMA Mask handling xen-netback: don't de-reference vif pointer after having called xenvif_put() macvlan: don't touch promisc without passthrough batman-adv: Don't handle address updates when bla is disabled batman-adv: forward late OGMs from best next hop ...
2013-06-15clk: Always notify whole subtree when reparentingSoren Brinkmann
A clock's notifier count only reflects notifiers which are registered directly for that clock. A reparent operation though affects the whole subtree because of a potential rate change. When issuing the pre rate change notifications only the notifier count for the clock to be changed is considered and notifiers for subclocks may never be called. Resulting in clocks in the subtree which have registered notifiers, may receive a POST_- or ABORT_RATE_CHANGE notification, without a PRE_RATE_CHANGE_NOTIFICATION. Therefore always traverse the whole subtree when issueing pre rate change notifications during a reparent operation. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-06-15i2c: nomadik: allocate adapter number dynamicallyLinus Walleij
The Nomadik I2C was using a local atomic counter to number the I2C adapters. This does not work on configurations where you also add, say a GPIO bit-banged adapter to the system. They will start to conflict about being adapter 0. There is no reason to use the numbered adapter function, and the semantic effect on systems with only Nomadik I2C blocks will be none - instead of increasing the number atomically in the driver itself, it is done in the I2C core. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2013-06-15tilepro: work around module link error with gcc 4.7Chris Metcalf
gcc 4.7.x is emitting calls to __ffsdi2 where previously it used to inline the appropriate ctz instructions. While this needs to be fixed in gcc, it's also easy to avoid having it cause build failures when building with those compilers by exporting __ffsdi2 to modules. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> Cc: stable@kernel.org
2013-06-15ARM: integrator: basic PCIv3 device tree supportLinus Walleij
This registers the memory ranges for I/O, non-prefetched and prefetched memory and configuration space for the PCIv3 bridge and let us fetch these basic memory resources from the device tree in the device tree boot path. Remove the stepping stone platform device. This is an either/or approach - the platform data path is mutually exclusive to the plain platform data path and provided addresses from the device tree have to be correct. This adds the interrupt-map property to the PCIv3 DTS file and makes the bridge obtain mappings from the device tree. Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-15i2c: nomadik: support elder NomadiksLinus Walleij
The Nomadik I2C block was introduced with the Nomadik STn8815 SoC (the STn8810 incidentally is identical to the one named i2c-stu300.c). However as developments have only been tested on the DB8500 family, it was not properly working with the STn8815 anymore. Rectify this by adding some vendor variant data in the same manner as other PrimeCells, and switch code path depending on version. Tested on the S8815 Nomadik dongle. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2013-06-15ARM: sun4i: cubieboard: Enable the i2c controllersEmilio López
The Cubieboard makes use of the first two i2c controllers found on the Allwinner A10; i2c-0 is used internally for the PMIC, while i2c-1 is exposed on the board headers. This patch enables them in the device tree. Signed-off-by: Emilio López <emilio@elopez.com.ar> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Reviewed-by: Tomasz Figa <tomasz.figa@gmail.com>
2013-06-15ARM: sun5i: olinuxino: Enable the i2c controllersMaxime Ripard
The A13-Olinuxino makes use of the 3 i2c controllers found on the Allwinner A13. Enable them in the device tree. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Reviewed-by: Tomasz Figa <tomasz.figa@gmail.com>
2013-06-15ARM: sun5i: dt: Add i2c muxing optionsMaxime Ripard
The i2c controller found on the Allwinner A13 has only one muxing option available for each controller. Add them to the dtsi Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Reviewed-by: Tomasz Figa <tomasz.figa@gmail.com>
2013-06-15ARM: sun4i: dt: Add i2c muxing optionsMaxime Ripard
The i2c controller found on the Allwinner A10 has only one muxing option available for each controller. Add them to the dtsi Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Reviewed-by: Tomasz Figa <tomasz.figa@gmail.com>
2013-06-15ARM: sunxi: dt: Add i2c controller nodes to the DTSIMaxime Ripard
The Allwinner A10 and A13 both have 3 i2c controller embedded. Add those to the common sunxi dtsi. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Reviewed-by: Tomasz Figa <tomasz.figa@gmail.com>
2013-06-15i2c: mv64xxx: Add Allwinner sun4i compatibleMaxime Ripard
Add the compatible string for the Allwinner A10 i2c controller and the associated register layout. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Tested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2013-06-15i2c: mv64xxx: make the registers offset configurableMaxime Ripard
The Allwinner i2c controller uses the same logic as the Marvell one, but with slightly different register offsets. Introduce a structure that will be passed by either the pdata or associated to the compatible strings, and that holds the various registers that might be needed. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Tested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2013-06-15i2c: mv64xxx: Add macros to access parts of registersMaxime Ripard
These macros make it more comprehensive to access to useful masked and shifted area of the various registers used. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Tested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2013-06-15i2c: vt8500: Add support for I2C bus on Wondermedia SoCsTony Prisk
This patch adds support for the I2C bus controllers found on Wondermedia 8xxx-series SoCs. Only master-mode is supported. Signed-off-by: Tony Prisk <linux@prisktech.co.nz> [wsa: fixed one macro to shift 8 instead of 16] Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2013-06-15i2c: designware: fix race between subsequent xfersChristian Ruppert
The designware block is not always properly disabled in the case of transfer errors. Interrupts from aborted transfers might be handled after the data structures for the following transfer are initialised but before the hardware is set up. This can corrupt the data structures to the point that the system is stuck in an infinite interrupt loop (where FIFOs are never emptied because dev->msg_read_idx == dev->msgs_num). This patch cleanly disables the designware-i2c hardware at the end of every transfer, be it successful or not. Signed-off-by: Christian Ruppert <christian.ruppert@abilis.com> [wsa: extended the comment] Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2013-06-14Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull powerpc fixes from Benjamin Herrenschmidt: "So here are 3 fixes still for 3.10. Fixes are simple, bugs are nasty (though not recent regressions, nasty enough) and all targeted at stable" * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: Fix missing/delayed calls to irq_work powerpc: Fix emulation of illegal instructions on PowerNV platform powerpc: Fix stack overflow crash in resume_kernel when ftracing
2013-06-14smp.h: Use local_irq_{save,restore}() in !SMP version of on_each_cpu().David Daney
Thanks to commit f91eb62f71b3 ("init: scream bloody murder if interrupts are enabled too early"), "bloody murder" is now being screamed. With a MIPS OCTEON config, we use on_each_cpu() in our irq_chip.irq_bus_sync_unlock() function. This gets called in early as a result of the time_init() call. Because the !SMP version of on_each_cpu() unconditionally enables irqs, we get: WARNING: at init/main.c:560 start_kernel+0x250/0x410() Interrupts were enabled early CPU: 0 PID: 0 Comm: swapper Not tainted 3.10.0-rc5-Cavium-Octeon+ #801 Call Trace: show_stack+0x68/0x80 warn_slowpath_common+0x78/0xb0 warn_slowpath_fmt+0x38/0x48 start_kernel+0x250/0x410 Suggested fix: Do what we already do in the SMP version of on_each_cpu(), and use local_irq_save/local_irq_restore. Because we need a flags variable, make it a static inline to avoid name space issues. [ Change from v1: Convert on_each_cpu to a static inline function, add #include <linux/irqflags.h> to avoid build breakage on some files. on_each_cpu_mask() and on_each_cpu_cond() suffer the same problem as on_each_cpu(), but they are not causing !SMP bugs for me, so I will defer changing them to a less urgent patch. ] Signed-off-by: David Daney <david.daney@cavium.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-06-14Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull VFS fixes from Al Viro: "Several fixes + obvious cleanup (you've missed a couple of open-coded can_lookup() back then)" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: snd_pcm_link(): fix a leak... use can_lookup() instead of direct checks of ->i_op->lookup move exit_task_namespaces() outside of exit_notify() fput: task_work_add() can fail if the caller has passed exit_task_work() ncpfs: fix rmdir returns Device or resource busy
2013-06-14Merge tag 'for-linus-v3.10-rc6' of git://oss.sgi.com/xfs/xfsLinus Torvalds
Pull xfs fixes from Ben Myers: - Remove noisy warnings about experimental support which spams the logs - Add padding to align directory and attr structures correctly - Set block number on child buffer on a root btree split - Disable verifiers during log recovery for non-CRC filesystems * tag 'for-linus-v3.10-rc6' of git://oss.sgi.com/xfs/xfs: xfs: don't shutdown log recovery on validation errors xfs: ensure btree root split sets blkno correctly xfs: fix implicit padding in directory and attr CRC formats xfs: don't emit v5 superblock warnings on write
2013-06-14Merge tag 'char-misc-3.10-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char / misc fixes from Greg Kroah-Hartman: "Here are some small mei driver fixes for 3.10-rc6 that fix some reported problems" * tag 'char-misc-3.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: mei: me: clear interrupts on the resume path mei: nfc: fix nfc device freeing mei: init: Flush scheduled work before resetting the device
2013-06-14Merge tag 'usb-3.10-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg Kroah-Hartman: "Here are some small USB driver fixes that resolve some reported problems for 3.10-rc6 Nothing major, just 3 USB serial driver fixes, and two chipidea fixes" * tag 'usb-3.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb: chipidea: fix id change handling usb: chipidea: fix no transceiver case USB: pl2303: fix device initialisation at open USB: spcp8x5: fix device initialisation at open USB: f81232: fix device initialisation at open
2013-06-15powerpc: Fix missing/delayed calls to irq_workBenjamin Herrenschmidt
When replaying interrupts (as a result of the interrupt occurring while soft-disabled), in the case of the decrementer, we are exclusively testing for a pending timer target. However we also use decrementer interrupts to trigger the new "irq_work", which in this case would be missed. This change the logic to force a replay in both cases of a timer boundary reached and a decrementer interrupt having actually occurred while disabled. The former test is still useful to catch cases where a CPU having been hard-disabled for a long time completely misses the interrupt due to a decrementer rollover. CC: <stable@vger.kernel.org> [v3.4+] Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Tested-by: Steven Rostedt <rostedt@goodmis.org>
2013-06-15powerpc: Fix emulation of illegal instructions on PowerNV platformPaul Mackerras
Normally, the kernel emulates a few instructions that are unimplemented on some processors (e.g. the old dcba instruction), or privileged (e.g. mfpvr). The emulation of unimplemented instructions is currently not working on the PowerNV platform. The reason is that on these machines, unimplemented and illegal instructions cause a hypervisor emulation assist interrupt, rather than a program interrupt as on older CPUs. Our vector for the emulation assist interrupt just calls program_check_exception() directly, without setting the bit in SRR1 that indicates an illegal instruction interrupt. This fixes it by making the emulation assist interrupt set that bit before calling program_check_interrupt(). With this, old programs that use no-longer implemented instructions such as dcba now work again. CC: <stable@vger.kernel.org> Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-06-15powerpc: Fix stack overflow crash in resume_kernel when ftracingMichael Ellerman
It's possible for us to crash when running with ftrace enabled, eg: Bad kernel stack pointer bffffd12 at c00000000000a454 cpu 0x3: Vector: 300 (Data Access) at [c00000000ffe3d40] pc: c00000000000a454: resume_kernel+0x34/0x60 lr: c00000000000335c: performance_monitor_common+0x15c/0x180 sp: bffffd12 msr: 8000000000001032 dar: bffffd12 dsisr: 42000000 If we look at current's stack (paca->__current->stack) we see it is equal to c0000002ecab0000. Our stack is 16K, and comparing to paca->kstack (c0000002ecab3e30) we can see that we have overflowed our kernel stack. This leads to us writing over our struct thread_info, and in this case we have corrupted thread_info->flags and set _TIF_EMULATE_STACK_STORE. Dumping the stack we see: 3:mon> t c0000002ecab0000 [c0000002ecab0000] c00000000002131c .performance_monitor_exception+0x5c/0x70 [c0000002ecab0080] c00000000000335c performance_monitor_common+0x15c/0x180 --- Exception: f01 (Performance Monitor) at c0000000000fb2ec .trace_hardirqs_off+0x1c/0x30 [c0000002ecab0370] c00000000016fdb0 .trace_graph_entry+0xb0/0x280 (unreliable) [c0000002ecab0410] c00000000003d038 .prepare_ftrace_return+0x98/0x130 [c0000002ecab04b0] c00000000000a920 .ftrace_graph_caller+0x14/0x28 [c0000002ecab0520] c0000000000d6b58 .idle_cpu+0x18/0x90 [c0000002ecab05a0] c00000000000a934 .return_to_handler+0x0/0x34 [c0000002ecab0620] c00000000001e660 .timer_interrupt+0x160/0x300 [c0000002ecab06d0] c0000000000025dc decrementer_common+0x15c/0x180 --- Exception: 901 (Decrementer) at c0000000000104d4 .arch_local_irq_restore+0x74/0xa0 [c0000002ecab09c0] c0000000000fe044 .trace_hardirqs_on+0x14/0x30 (unreliable) [c0000002ecab0fb0] c00000000016fe3c .trace_graph_entry+0x13c/0x280 [c0000002ecab1050] c00000000003d038 .prepare_ftrace_return+0x98/0x130 [c0000002ecab10f0] c00000000000a920 .ftrace_graph_caller+0x14/0x28 [c0000002ecab1160] c0000000000161f0 .__ppc64_runlatch_on+0x10/0x40 [c0000002ecab11d0] c00000000000a934 .return_to_handler+0x0/0x34 --- Exception: 901 (Decrementer) at c0000000000104d4 .arch_local_irq_restore+0x74/0xa0 ... and so on __ppc64_runlatch_on() is called from RUNLATCH_ON in the exception entry path. At that point the irq state is not consistent, ie. interrupts are hard disabled (by the exception entry), but the paca soft-enabled flag may be out of sync. This leads to the local_irq_restore() in trace_graph_entry() actually enabling interrupts, which we do not want. Because we have not yet reprogrammed the decrementer we immediately take another decrementer exception, and recurse. The fix is twofold. Firstly make sure we call DISABLE_INTS before calling RUNLATCH_ON. The badly named DISABLE_INTS actually reconciles the irq state in the paca with the hardware, making it safe again to call local_irq_save/restore(). Although that should be sufficient to fix the bug, we also mark the runlatch routines as notrace. They are called very early in the exception entry and we are asking for trouble tracing them. They are also fairly uninteresting and tracing them just adds unnecessary overhead. [ This regression was introduced by fe1952fc0afb9a2e4c79f103c08aef5d13db1873 "powerpc: Rework runlatch code" by myself --BenH ] CC: <stable@vger.kernel.org> [v3.4+] Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-06-14Merge tag 'at91-drivers' of git://github.com/at91linux/linux-at91 into ↵Olof Johansson
next/drivers From Nicolas Ferre: Adding the DT support to USB gadget High-Speed aka usba. * tag 'at91-drivers' of git://github.com/at91linux/linux-at91: USB: gadget: atmel_usba: add DT support USB: gadget: atmel_usba: allow multi instance USB: gadget: atmel_usba: move global struct usba_ep usba_ep to struct usba_udc ARM: at91: udpate defconfigs ARM: at91: dt: switch to standard IRQ flag defines ARM: at91: dt: switch to pinctrl to pre-processor ARM: at91: dt: add pinctrl pre-processor define ARM: at91: dt: switch to standard GPIO flag defines. ARM: at91: dt: use #include for all device trees Signed-off-by: Olof Johansson <olof@lixom.net> Conflicts: arch/arm/boot/dts/at91sam9260.dtsi arch/arm/boot/dts/sama5d3.dtsi
2013-06-14Merge tag 'at91-dt' of git://github.com/at91linux/linux-at91 into next/dtOlof Johansson
From Nicolas Ferre: Again some nice DT updates for AT91: - DMA binding update with one patch shared with slave-dma tree - more SPI DT activation - enable the USB gadget HS for DT platforms * tag 'at91-dt' of git://github.com/at91linux/linux-at91: ARM: at91: sam9m10g45ek add udc DT support ARM: at91: sam9g45 add udc DT support ARM: at91: sam9x5ek add udc DT support ARM: at91: sam9x5 add udc DT support ARM: at91: dt: at91sam9x5: add SPI DMA client infos ARM: at91: dt: switch DMA DT bindings to pre-processor ARM: at91: dt: add header to define at_hdmac configuration
2013-06-14Merge tag 'sunxi-dt-for-3.11' of git://github.com/mripard/linux into next/dtOlof Johansson
From Maxime Ripard: Allwinner SoCs DT additions for 3.11 - Switch to using the sun5i clocks for the A13 - Register the pio node as an interrupt controller * tag 'sunxi-dt-for-3.11' of git://github.com/mripard/linux: ARM: sunxi: dt: Register the pio node as interrupt controller ARM: sun5i: Update the clock compatible strings Signed-off-by: Olof Johansson <olof@lixom.net>
2013-06-15snd_pcm_link(): fix a leak...Al Viro
in case when snd_pcm_stream_linked(substream) is true, we end up leaking group. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-06-15use can_lookup() instead of direct checks of ->i_op->lookupAl Viro
a couple of places got missed back when Linus has introduced that one... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-06-14Merge tag 'sunxi-core-for-3.11' of git://github.com/mripard/linux into ↵Olof Johansson
next/cleanup From Maxime Ripard: Allwinner SoCs platform additions for 3.11 - Various cleanups and documentation updates * tag 'sunxi-core-for-3.11' of git://github.com/mripard/linux: ARM: sunxi: irqchip: Update the documentation ARM: sunxi: Update datasheet documentation ARM: sunxi: Remove init_irq declaration in machine description Signed-off-by: Olof Johansson <olof@lixom.net> #
2013-06-15move exit_task_namespaces() outside of exit_notify()Oleg Nesterov
exit_notify() does exit_task_namespaces() after forget_original_parent(). This was needed to ensure that ->nsproxy can't be cleared prematurely, an exiting child we are going to reparent can do do_notify_parent() and use the parent's (ours) pid_ns. However, after 32084504 "pidns: use task_active_pid_ns in do_notify_parent" ->nsproxy != NULL is no longer needed, we rely on task_active_pid_ns(). Move exit_task_namespaces() from exit_notify() to do_exit(), after exit_fs() and before exit_task_work(). This solves the problem reported by Andrey, free_ipc_ns()->shm_destroy() does fput() which needs task_work_add(). Note: this particular problem can be fixed if we change fput(), and that change makes sense anyway. But there is another reason to move the callsite. The original reason for exit_task_namespaces() from the middle of exit_notify() was subtle and it has already gone away, now this looks confusing. And this allows us do simplify exit_notify(), we can avoid unlock/lock(tasklist) and we can use ->exit_state instead of PF_EXITING in forget_original_parent(). Reported-by: Andrey Vagin <avagin@openvz.org> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Andrey Vagin <avagin@openvz.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
generated by cgit (git 2.34.1) at 2025-10-01 19:13:39 +0000