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* leds: leds-ns2: remove unnecessary platform_set_drvdata()Jingoo Han2013-06-211-2/+0
| | | | | | | | | | The driver core clears the driver data to NULL after device_release or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d (device-core: Ensure drvdata = NULL when no driver is bound). Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* leds: leds-mc13783: remove unnecessary platform_set_drvdata()Jingoo Han2013-06-211-1/+0
| | | | | | | | | | The driver core clears the driver data to NULL after device_release or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d (device-core: Ensure drvdata = NULL when no driver is bound). Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* leds: leds-gpio: remove unnecessary platform_set_drvdata()Jingoo Han2013-06-211-2/+0
| | | | | | | | | | The driver core clears the driver data to NULL after device_release or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d (device-core: Ensure drvdata = NULL when no driver is bound). Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* leds: atmel-pwm: remove unnecessary platform_set_drvdata()Jingoo Han2013-06-211-1/+0
| | | | | | | | | | The driver core clears the driver data to NULL after device_release or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d (device-core: Ensure drvdata = NULL when no driver is bound). Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* leds: lp55xx: add support for Device Tree bindingsLinus Walleij2013-06-215-10/+108
| | | | | | | | | | | | | This patch allows the lp5521 driver to be successfully probed and initialised when Device Tree support is enabled. Based on a patch by Gabriel Fernandez, rewritten in accordance with review feedback. Cc: Gabriel Fernandez <gabriel.fernandez@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Milo Kim <milo.kim@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* Linux 3.10-rc6v3.10-rc6Linus Torvalds2013-06-151-1/+1
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* Merge tag 'fixes-for-linus' of ↵Linus Torvalds2013-06-1513-29/+96
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
| * Merge tag 'fixes-3.10-4' of git://git.infradead.org/users/jcooper/linux into ↵Olof Johansson2013-06-123-6/+9
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fixes From Jason Cooper, mvebu fixes for v3.10 round 4: - mvebu - fix PCIe ranges property so NOR flash is visible - kirkwood - fix identification of 88f6282 so MPPs can be set correctly * tag 'fixes-3.10-4' of git://git.infradead.org/users/jcooper/linux: arm: mvebu: armada-xp-{gp,openblocks-ax3-4}: specify PCIe range ARM: Kirkwood: handle mv88f6282 cpu in __kirkwood_variant(). Signed-off-by: Olof Johansson <olof@lixom.net>
| | * arm: mvebu: armada-xp-{gp,openblocks-ax3-4}: specify PCIe rangeThomas Petazzoni2013-06-062-4/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ranges DT entry needed by the PCIe controller is defined at the SoC .dtsi level. However, some boards have a NOR flash, and to support it, they need to override the SoC-level ranges property to add an additional range. Since PCIe and NOR support came separately, some boards were not properly changed to include the PCIe range in their ranges property at the .dts level. This commit fixes those platforms. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
| | * ARM: Kirkwood: handle mv88f6282 cpu in __kirkwood_variant().Nicolas Schichan2013-06-061-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MPP_F6281_MASK would be previously be returned when on mv88f6282, which would disallow some valid MPP configurations. Commit 830f8b91 (arm: plat-orion: fix printing of "MPP config unavailable on this hardware") made this problem visible as an invalid MPP configuration is now correctly detected and not applied. Signed-off-by: Nicolas Schichan <nschichan@freebox.fr> Cc: <stable@vger.kernel.org> # v3.9.x Signed-off-by: Jason Cooper <jason@lakedaemon.net>
| * | ARM: SAMSUNG: pm: Adjust for pinctrl- and DT-enabled platformsTomasz Figa2013-06-111-5/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes legacy code on suspend/resume path being executed conditionally, on non-DT platforms only, to fix suspend/resume of DT-enabled systems, for which the code is inappropriate. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> [olof: add #include <linux/of.h>] Signed-off-by: Olof Johansson <olof@lixom.net>
| * | ARM: prima2: fix incorrect panic usageHaojian Zhuang2013-06-112-4/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In prima2, some functions of checking DT is registered in initcall level. If it doesn't match the compatible name of sirf, kernel will panic. It blocks the usage of multiplatform on other verndor. The error message is in below. Knic - not syncing: unable to find compatible pwrc node in dtb CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.10.0-rc3-00006-gd7f26ea-dirty #86 [<c0013adc>] (unwind_backtrace+0x0/0xf8) from [<c0011430>] (show_stack+0x10/0x1) [<c0011430>] (show_stack+0x10/0x14) from [<c026f724>] (panic+0x90/0x1e8) [<c026f724>] (panic+0x90/0x1e8) from [<c03267fc>] (sirfsoc_of_pwrc_init+0x24/0x) [<c03267fc>] (sirfsoc_of_pwrc_init+0x24/0x58) from [<c0320864>] (do_one_initcal) [<c0320864>] (do_one_initcall+0x90/0x150) from [<c0320a20>] (kernel_init_freeab) [<c0320a20>] (kernel_init_freeable+0xfc/0x1c4) from [<c026b9e8>] (kernel_init+0) [<c026b9e8>] (kernel_init+0x8/0xe4) from [<c000e158>] (ret_from_fork+0x14/0x3c) Signen-off-by: Haojian Zhuang <haojian.zhuang@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
| * | Merge tag 'omap-for-v3.10/fixes-v3.10-rc4' of ↵Olof Johansson2013-06-097-14/+66
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes From Tony Lindgren, a set of small fixes for omaps for the -rc cycle: - am7303 iva2 reset PM regression fix - am33xx uart2 dma channel fix - am33xx gpmc properties fix - omap44xx rtc wake-up mux fix for nirq pins - omap36xx clock divider restore fix There's also one tiny non-critical .dts fix for omap5 timer pwm properties. * tag 'omap-for-v3.10/fixes-v3.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: 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
| | * \ Merge tag 'omap-fixes-b-for-3.10-rc' of ↵Tony Lindgren2013-06-082-10/+17
| | |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v3.10/fixes More OMAP hwmod and clock fixes for v3.10-rc. Fixes the AM33xx UART2. Also fixes some CCF-related breakage on OMAP36xx/37xx, affecting DSS at the very least. Basic test logs for this branch are here: http://www.pwsan.com/omap/testlogs/fixes_b_v3.10-rc/20130606093449/
| | | * | ARM: omap3: clock: fix wrong container_of in clock36xx.cJean-Philippe Francois2013-06-061-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | omap36xx_pwrdn_clk_enable_with_hsdiv_restore expects the parent hw of the clock to be a clk_hw_omap. However, looking at cclock3xxx_data.c, all concerned clock have parent defined as clk_divider. Fix the function to use clk_divider. Tested with 3.9 on dm3730. Signed-off-by: Jean-Philippe François <jp.francois@cynove.com> Cc: NeilBrown <neilb@suse.de> Cc: Mike Turquette <mturquette@linaro.org> Signed-off-by: Paul Walmsley <paul@pwsan.com>
| | | * | arm: omap2: fix AM33xx hwmod infos for UART2Thomas Petazzoni2013-06-031-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The UART2 hwmod structure is pointing to the EDMA channels of UART1, which doesn't look right. This patch fixes this by making the UART2 hwmod structure to a new structure that lists the EDMA channels to be used by the UART2. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Vaibhav Hiremath <hvaibhav@ti.com> [paul@pwsan.com: updated to apply] Signed-off-by: Paul Walmsley <paul@pwsan.com>
| | * | | Merge branch 'dts-fixes-for-3.10' of ↵Tony Lindgren2013-06-08206-1655/+4045
| | |\ \ \ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/bcousson/linux-omap-dt into omap-for-v3.10/fixes
| | | * | | ARM: dts: OMAP5: Fix missing PWM capability to timer nodesSuman Anna2013-06-031-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | OMAP5 has 6 timers (GPTimers 5, 6, 8 to 11) that are capable of PWM. The PWM capability property is missing from the node definitions of couple of timers. Add ti,timer-pwm attribute for timer 5, 6, 8 and 11. Signed-off-by: Suman Anna <s-anna@ti.com> [benoit.cousson@linaro.org: Update changelog and subject to highlight the fix] Signed-off-by: Benoit Cousson <benoit.cousson@linaro.org>
| | | * | | ARM: dts: omap4-panda|sdp: Fix mux for twl6030 IRQ pin and msecure lineKevin Hilman2013-06-032-0/+40
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Earlier commits ensured proper muxing of pins related to proper TWL6030 behavior: see commit 265a2bc8 (ARM: OMAP3: TWL4030: ensure sys_nirq1 is mux'd and wakeup enabled) and commit 1ef43369 (ARM: OMAP4: TWL: mux sys_drm_msecure as output for PMIC). However these only fixed legacy boot and not DT boot. For DT boot, the default mux values need to be set properly in DT. Special thanks to Nishanth Menon for the review and catching some major flaws in earlier versions. Tested on OMAP4430/Panda and OMAP4460/Panda-ES. Cc: Nishanth Menon <nm@ti.com> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Kevin Hilman <khilman@linaro.org> Acked-by: Grygorii Strashko <grygorii.strashko@ti.com> [benoit.cousson@linaro.org: Slightly change the subject to align board name with file name] Signed-off-by: Benoit Cousson <benoit.cousson@linaro.org>
| | | * | | ARM: dts: AM33xx: Fix properties on gpmc nodeLars Poeschel2013-06-031-2/+2
| | | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The gpmc driver is actually looking for "gpmc,num-cs" and "gpmc,num-waitpins" properties in DT. The binding doc also states this. Correct the properties in the dts to provide the right values for the gpmc driver. Signed-off-by: Lars Poeschel <poeschel@lemonage.de> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Acked-by: Pekon Gupta <pekon@ti.com> Signed-off-by: Benoit Cousson <benoit.cousson@linaro.org>
| | * | | ARM: OMAP3: Fix iva2_pwrdm settings for 3703Tony Lindgren2013-05-301-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit a819c4f1 (ARM: OMAP3: PM: Only access IVA if one exists) changed PM to not access IVA registers on omaps that don't have them. Turns out we still need to idle iva2 as otherwise iva2_pwrdm will stay on and block deeper idle states. It seems that the only part of the reset that may not be needed is the setting of the iva2 boot mode to idle. But as that register seems to be there and is harmless if no iva2 is on the SoC, it's probably safest to do the complete reset. Acked-by: Mark A. Greer <mgreer@animalcreek.com> Acked-by: Kevin Hilman <khilman@linaro.org> Tested-by: Yegor Yefremov <yegorslists@googlemail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* | | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2013-06-1520-81/+147
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 ...
| * | | | | sctp: fully initialize sctp_outq in sctp_outq_initNeil Horman2013-06-141-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In commit 2f94aabd9f6c925d77aecb3ff020f1cc12ed8f86 (refactor sctp_outq_teardown to insure proper re-initalization) we modified sctp_outq_teardown to use sctp_outq_init to fully re-initalize the outq structure. Steve West recently asked me why I removed the q->error = 0 initalization from sctp_outq_teardown. I did so because I was operating under the impression that sctp_outq_init would properly initalize that value for us, but it doesn't. sctp_outq_init operates under the assumption that the outq struct is all 0's (as it is when called from sctp_association_init), but using it in __sctp_outq_teardown violates that assumption. We should do a memset in sctp_outq_init to ensure that the entire structure is in a known state there instead. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Reported-by: "West, Steve (NSN - US/Fort Worth)" <steve.west@nsn.com> CC: Vlad Yasevich <vyasevich@gmail.com> CC: netdev@vger.kernel.org CC: davem@davemloft.net Acked-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | netiucv: Hold rtnl between name allocation and device registration.Benjamin Poirier2013-06-141-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fixes a race condition between concurrent initializations of netiucv devices that try to use the same name. sysfs: cannot create duplicate filename '/devices/iucv/netiucv2' [...] Call Trace: ([<00000000002edea4>] sysfs_add_one+0xb0/0xdc) [<00000000002eecd4>] create_dir+0x80/0xfc [<00000000002eee38>] sysfs_create_dir+0xe8/0x118 [<00000000003835a8>] kobject_add_internal+0x120/0x2d0 [<00000000003839d6>] kobject_add+0x62/0x9c [<00000000003d9564>] device_add+0xcc/0x510 [<000003e00212c7b4>] netiucv_register_device+0xc0/0x1ec [netiucv] Signed-off-by: Benjamin Poirier <bpoirier@suse.de> Tested-by: Ursula Braun <braunu@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | tulip: Properly check dma mapping resultNeil Horman2013-06-141-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Tulip throws an error when dma debugging is enabled, as it doesn't properly check dma mapping results with dma_mapping_error() durring tx ring refills. Easy fix, just add it in, and drop the frame if the mapping is bad Signed-off-by: Neil Horman <nhorman@tuxdriver.com> CC: Grant Grundler <grundler@parisc-linux.org> CC: "David S. Miller" <davem@davemloft.net> Reviewed-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | net: sh_eth: fix incorrect RX length error if R8A7740Yoshihiro Shimoda2013-06-131-4/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes an issue that the driver increments the "RX length error" on every buffer in sh_eth_rx() if the R8A7740. This patch also adds a description about the Receive Frame Status bits. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | ip_tunnel: remove __net_init/exit from exported functionsEric Dumazet2013-06-132-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If CONFIG_NET_NS is not set then __net_init is the same as __init and __net_exit is the same as __exit. These functions will be removed from memory after the module loads or is removed. Functions that are exported for use by other functions should never be labeled for removal. Bug introduced by commit c54419321455631079c ("GRE: Refactor GRE tunneling code.") Reported-by: Steinar H. Gunderson <sgunderson@bigfoot.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | drivers: net: davinci_mdio: restore mdio clk divider in mdio resumeMugunthan V N2013-06-131-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During suspend resume cycle all the register data is lost, so MDIO clock divier value gets reset. This patch restores the clock divider value. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | drivers: net: davinci_mdio: moving mdio resume earlier than cpsw ethernet driverMugunthan V N2013-06-131-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MDIO driver should resume before CPSW ethernet driver so that CPSW connect to the phy and start tx/rx ethernet packets, changing the suspend/resume apis with suspend_late/resume_early. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | net/ipv4: ip_vti clear skb cb before tunneling.Saurabh Mohan2013-06-131-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If users apply shaper to vti tunnel then it will cause a kernel crash. The problem seems to be due to the vti_tunnel_xmit function not clearing skb->opt field before passing the packet to xfrm tunneling code. Signed-off-by: Saurabh Mohan <saurabh@vyatta.com> Acked-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | tg3: Wait for boot code to finish after power onNithin Sujir2013-06-131-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some systems that don't need wake-on-lan may choose to power down the chip on system standby. Upon resume, the power on causes the boot code to startup and initialize the hardware. On one new platform, this is causing the device to go into a bad state due to a race between the driver and boot code, once every several hundred resumes. The same race exists on open since we come up from a power on. This patch adds a wait for boot code signature at the beginning of tg3_init_hw() which is common to both cases. If there has not been a power-off or the boot code has already completed, the signature will be present and poll_fw() returns immediately. Also return immediately if the device does not have firmware. Cc: stable@vger.kernel.org Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | l2tp: Fix sendmsg() return valueGuillaume Nault2013-06-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PPPoL2TP sockets should comply with the standard send*() return values (i.e. return number of bytes sent instead of 0 upon success). Signed-off-by: Guillaume Nault <g.nault@alphalink.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | l2tp: Fix PPP header erasure and memory leakGuillaume Nault2013-06-131-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Copy user data after PPP framing header. This prevents erasure of the added PPP header and avoids leaking two bytes of uninitialised memory at the end of skb's data buffer. Signed-off-by: Guillaume Nault <g.nault@alphalink.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | bonding: fix igmp_retrans type and two related racesNikolay Aleksandrov2013-06-132-5/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | First the type of igmp_retrans (which is the actual counter of igmp_resend parameter) is changed to u8 to be able to store values up to 255 (as per documentation). There are two races that were hidden there and which are easy to trigger after the previous fix, the first is between bond_resend_igmp_join_requests and bond_change_active_slave where igmp_retrans is set and can be altered by the periodic. The second race condition is between multiple running instances of the periodic (upon execution it can be scheduled again for immediate execution which can cause the counter to go < 0 which in the unsigned case leads to unnecessary igmp retransmissions). Since in bond_change_active_slave bond->lock is held for reading and curr_slave_lock for writing, we use curr_slave_lock for mutual exclusion. We can't drop them as there're cases where RTNL is not held when bond_change_active_slave is called. RCU is unlocked in bond_resend_igmp_join_requests before getting curr_slave_lock since we don't need it there and it's pointless to delay. The decrement is moved inside the "if" block because if we decrement unconditionally there's still a possibility for a race condition although it is much more difficult to hit (many changes have to happen in a very short period in order to trigger) which in the case of 3 parallel running instances of this function and igmp_retrans == 1 (with check bond->igmp_retrans-- > 1) is: f1 passes, doesn't re-schedule, but decrements - igmp_retrans = 0 f2 then passes, doesn't re-schedule, but decrements - igmp_retrans = 255 f3 does the unnecessary retransmissions. Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | bonding: reset master mac on first enslave failureNikolay Aleksandrov2013-06-131-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the bond device is supposed to get the first slave's MAC address and the first enslavement fails then we need to reset the master's MAC otherwise it will stay the same as the failed slave device. We do it after err_undo_flags since that is the first place where the MAC can be changed and we check if it should've been the first slave and if the bond's MAC was set to it because that err place is used by multiple locations prior to changing the master's MAC address. Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | packet: packet_getname_spkt: make sure string is always 0-terminatedDaniel Borkmann2013-06-131-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | uaddr->sa_data is exactly of size 14, which is hard-coded here and passed as a size argument to strncpy(). A device name can be of size IFNAMSIZ (== 16), meaning we might leave the destination string unterminated. Thus, use strlcpy() and also sizeof() while we're at it. We need to memset the data area beforehand, since strlcpy does not padd the remaining buffer with zeroes for user space, so that we do not possibly leak anything. Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | net: ethernet: stmicro: stmmac: Fix compile error when STMMAC_XMIT_DEBUG usedDinh Nguyen2013-06-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drivers/net/ethernet/stmicro/stmmac/stmmac_main.c: In function: stmmac_xmit drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:1902:74: error: expected ) before __func__ Signed-off-by: Dinh Nguyen <dinguyen@altera.com> Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> CC: David S. Miller <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | be2net: Fix 32-bit DMA Mask handlingSomnath Kotur2013-06-131-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix to set the coherent DMA mask only if dma_set_mask() succeeded, and to error out if either fails. Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | Merge tag 'batman-adv-fix-for-davem' of git://git.open-mesh.org/linux-mergeDavid S. Miller2013-06-133-35/+60
| |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Included change: - fix "rtnl locked" concurrent executions by using rtnl_lock instead of rtnl_trylock. This fix enables batman-adv initialisation to do not fail just because somewhere else in the system another code path is holding the rtnl lock. It is easy to see the problem when batman-adv is trying to start together with other networking components. - fix the routing protocol forwarding policy by enhancing the duplicate control packet detection. When the right circumstances trigger the issue, some nodes in the network become totally unreachable, so breaking the mesh connectivity. - fix the Bridge Loop Avoidance component by not running the originator address change handling routine when the component is disabled. The routine was generating useless packets that were sent over the network. Signed-off-by: David S. Miller <davem@davemloft.net>
| | * | | | | batman-adv: Don't handle address updates when bla is disabledSimon Wunderlich2013-06-101-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The bridge loop avoidance has a hook to handle address updates of the originator. These should not be handled when bridge loop avoidance is disabled - it might send some bridge loop avoidance packets which should not appear if bla is disabled. Signed-off-by: Simon Wunderlich <simon@open-mesh.com> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de> Signed-off-by: Antonio Quartulli <ordex@autistici.org>
| | * | | | | batman-adv: forward late OGMs from best next hopSimon Wunderlich2013-06-101-31/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a packet is received from another node first and later from the best next hop, this packet is dropped. However the first OGM was sent with the BATADV_NOT_BEST_NEXT_HOP flag and thus dropped by neighbors. The late OGM from the best neighbor is then dropped because it is a duplicate. If this situation happens constantly, a node might end up not forwarding the "valid" OGMs anymore, and nodes behind will starve from not getting valid OGMs. Fix this by refining the duplicate checking behaviour: The actions should depend on whether it was a duplicate for a neighbor only or for the originator. OGMs which are not duplicates for a specific neighbor will now be considered in batadv_iv_ogm_forward(), but only actually forwarded for the best next hop. Therefore, late OGMs from the best next hop are forwarded now and not dropped as duplicates anymore. Signed-off-by: Simon Wunderlich <simon@open-mesh.com> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de> Signed-off-by: Antonio Quartulli <ordex@autistici.org>
| | * | | | | batman-adv: wait for rtnl in batadv_store_mesh_iface instead of failing if ↵Matthias Schiffer2013-06-101-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | it is taken The rtnl_lock in batadv_store_mesh_iface has been converted to a rtnl_trylock some time ago to avoid a possible deadlock between rtnl and s_active on removal of the sysfs nodes. The behaviour introduced by that was quite confusing as it could lead to the sysfs store to fail, making batman-adv setup scripts unreliable. As recently the sysfs removal was postponed to a worker not running with the rtnl taken, the deadlock can't occur any more and it is safe to change the trylock back to a lock to make the sysfs store reliable again. Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net> Reviewed-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de> Signed-off-by: Antonio Quartulli <ordex@autistici.org>
| * | | | | | xen-netback: don't de-reference vif pointer after having called xenvif_put()Jan Beulich2013-06-131-5/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When putting vif-s on the rx notify list, calling xenvif_put() must be deferred until after the removal from the list and the issuing of the notification, as both operations dereference the pointer. Changing this got me to notice that the "irq" variable was effectively unused (and was of too narrow type anyway). Signed-off-by: Jan Beulich <jbeulich@suse.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | | macvlan: don't touch promisc without passthroughMichael S. Tsirkin2013-06-131-7/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit df8ef8f3aaa6692970a436204c4429210addb23a "macvlan: add FDB bridge ops and macvlan flags" added a way to control NOPROMISC macvlan flag through netlink. However, with a non passthrough device we never set promisc on open, even if NOPROMISC is off. As a result: If userspace clears NOPROMISC on open, then does not clear it on a netlink command, promisc counter is not decremented on stop and there will be no way to clear it once macvlan is detached. If userspace does not clear NOPROMISC on open, then sets NOPROMISC on a netlink command, promisc counter will be decremented from 0 and overflow to fffffffff with no way to clear promisc. To fix, simply ignore NOPROMISC flag in a netlink command for non-passthrough devices, same as we do at open/close. Since we touch this code anyway - check dev_set_promiscuity return code and pass it to users (though an error here is unlikely). Cc: "David S. Miller" <davem@davemloft.net> Reviewed-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | | | Merge branch 'merge' of ↵Linus Torvalds2013-06-155-5/+15
|\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
| * | | | | | | powerpc: Fix missing/delayed calls to irq_workBenjamin Herrenschmidt2013-06-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * | | | | | | powerpc: Fix emulation of illegal instructions on PowerNV platformPaul Mackerras2013-06-152-1/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * | | | | | | powerpc: Fix stack overflow crash in resume_kernel when ftracingMichael Ellerman2013-06-152-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | | | | | | | smp.h: Use local_irq_{save,restore}() in !SMP version of on_each_cpu().David Daney2013-06-151-7/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | | | | | | | Merge branch 'for-linus' of ↵Linus Torvalds2013-06-155-23/+15
|\ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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