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* mmc: sdhci: fix low memory corruptionJiri Slaby2015-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 62a7f368ffbc13d9aedfdd7aeae711b177db69ac upstream. When dma mapping (dma_map_sg) fails in sdhci_pre_dma_transfer, -EINVAL is returned. There are 3 callers of sdhci_pre_dma_transfer: * sdhci_pre_req and sdhci_adma_table_pre: handle negative return * sdhci_prepare_data: handles 0 (error) and "else" (good) only sdhci_prepare_data is therefore broken. When it receives -EINVAL from sdhci_pre_dma_transfer, it assumes 1 sg mapping was mapped. Later, this non-existent mapping with address 0 is kmap'ped and written to: Corrupted low memory at ffff880000001000 (1000 phys) = 22b7d67df2f6d1cf Corrupted low memory at ffff880000001008 (1008 phys) = 63848a5216b7dd95 Corrupted low memory at ffff880000001010 (1010 phys) = 330eb7ddef39e427 Corrupted low memory at ffff880000001018 (1018 phys) = 8017ac7295039bda Corrupted low memory at ffff880000001020 (1020 phys) = 8ce039eac119074f ... So teach sdhci_prepare_data to understand negative return values from sdhci_pre_dma_transfer and disable DMA in that case, as well as for zero. It was introduced in 348487cb28e66b032bae1b38424d81bf5b444408 (mmc: sdhci: use pipeline mmc requests to improve performance). The commit seems to be suspicious also by assigning host->sg_count both in sdhci_pre_dma_transfer and sdhci_adma_table_pre. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Fixes: 348487cb28e6 Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: Haibo Chen <haibo.chen@freescale.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mmc: atmel-mci: fix bad variable type for clkdivLudovic Desroches2015-05-18
| | | | | | | | | clkdiv is declared as an u32 but it can be set to a negative value causing a huge divisor value. Change its type to int to avoid this case. Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Cc: <stable@vger.kernel.org> # 3.4 and later Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: dw_mmc: dw_mci_get_cd check MMC_CAP_NONREMOVABLEZhangfei Gao2015-05-08
| | | | | | | | | When non-removable is used for emmc, MMC_CAP_NONREMOVABLE should also be checked, otherwise detection fail since present=0 Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: dw_mmc: init desc in dw_mci_idmac_initZhangfei Gao2015-05-08
| | | | | | | | | | | Set 0 to des1 in 32bit case. Otherwise the random value of des1 will be used in dw_mci_translate_sglist: IDMAC_SET_BUFFER1_SIZE(desc, length) Signed-off-by: Fei Wang <w.f@huawei.com> Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: card: Don't access RPMB partitions for normal read/writeChuanxiao Dong2015-05-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During kernel boot, it will try to read some logical sectors of each block device node for the possible partition table. But since RPMB partition is special and can not be accessed by normal eMMC read / write CMDs, it will cause below error messages during kernel boot: ... mmc0: Got data interrupt 0x00000002 even though no data operation was in progress. mmcblk0rpmb: error -110 transferring data, sector 0, nr 32, cmd response 0x900, card status 0xb00 mmcblk0rpmb: retrying using single block read mmcblk0rpmb: timed out sending r/w cmd command, card status 0x400900 mmcblk0rpmb: timed out sending r/w cmd command, card status 0x400900 mmcblk0rpmb: timed out sending r/w cmd command, card status 0x400900 mmcblk0rpmb: timed out sending r/w cmd command, card status 0x400900 mmcblk0rpmb: timed out sending r/w cmd command, card status 0x400900 mmcblk0rpmb: timed out sending r/w cmd command, card status 0x400900 end_request: I/O error, dev mmcblk0rpmb, sector 0 Buffer I/O error on device mmcblk0rpmb, logical block 0 end_request: I/O error, dev mmcblk0rpmb, sector 8 Buffer I/O error on device mmcblk0rpmb, logical block 1 end_request: I/O error, dev mmcblk0rpmb, sector 16 Buffer I/O error on device mmcblk0rpmb, logical block 2 end_request: I/O error, dev mmcblk0rpmb, sector 24 Buffer I/O error on device mmcblk0rpmb, logical block 3 ... This patch will discard the access request in eMMC queue if it is RPMB partition access request. By this way, it avoids trigger above error messages. Fixes: 090d25fe224c ("mmc: core: Expose access to RPMB partition") Signed-off-by: Yunpeng Gao <yunpeng.gao@intel.com> Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com> Tested-by: Michael Shigorin <mike@altlinux.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: sh_mmcif: Fix timeout value for command requestTakeshi Kihara2015-05-06
| | | | | | | | | | | | | | | | | | | f9fd54f22e ("mmc: sh_mmcif: Use msecs_to_jiffies() for host->timeout") changed the timeout value from 1000 jiffies to 1s. In the case where HZ is 1000 the values are the same. However, for smaller HZ values the timeout is now smaller, 1s instead of 10s in the case of HZ=100. Since the timeout occurs in spite of a normal data transfer a timeout of 10s seems more appropriate. This restores the previous timeout in the case where HZ=100 and results in an increase over the previous timeout for larger values of HZ. Fixes: f9fd54f22e ("mmc: sh_mmcif: Use msecs_to_jiffies() for host->timeout") Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com> [horms: rewrote changelog to refer to HZ] Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: core: add missing pm event in mmc_pm_notify to fix hib restoreGrygorii Strashko2015-05-04
| | | | | | | | | | | | | | | | The PM_RESTORE_PREPARE is not handled now in mmc_pm_notify(), as result mmc_rescan() could be scheduled and executed at late hibernation restore stages when MMC device is suspended already - which, in turn, will lead to system crash on TI dra7-evm board: WARNING: CPU: 0 PID: 3188 at drivers/bus/omap_l3_noc.c:148 l3_interrupt_handler+0x258/0x374() 44000000.ocp:L3 Custom Error: MASTER MPU TARGET L4_PER1_P3 (Idle): Data Access in User mode during Functional access Hence, add missed PM_RESTORE_PREPARE PM event in mmc_pm_notify(). Fixes: 4c2ef25fe0b8 (mmc: fix all hangs related to mmc/sd card...) Signed-off-by: Grygorii Strashko <Grygorii.Strashko@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds2015-04-24
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull slave-dmaengine updates from Vinod Koul: - new drivers for: - Ingenic JZ4780 controller - APM X-Gene controller - Freescale RaidEngine device - Renesas USB Controller - remove device_alloc_chan_resources dummy handlers - sh driver cleanups for peri peri and related emmc and asoc patches as well - fixes and enhancements spread over the drivers * 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (59 commits) dmaengine: dw: don't prompt for DW_DMAC_CORE dmaengine: shdmac: avoid unused variable warnings dmaengine: fix platform_no_drv_owner.cocci warnings dmaengine: pch_dma: fix memory leak on failure path in pch_dma_probe() dmaengine: at_xdmac: unlock spin lock before return dmaengine: xgene: devm_ioremap() returns NULL on error dmaengine: xgene: buffer overflow in xgene_dma_init_channels() dmaengine: usb-dmac: Fix dereferencing freed memory 'desc' dmaengine: sa11x0: report slave capabilities to upper layers dmaengine: vdma: Fix compilation warnings dmaengine: fsl_raid: statify fsl_re_chan_probe dmaengine: Driver support for FSL RaidEngine device. dmaengine: xgene_dma_init_ring_mngr() can be static Documentation: dma: Add documentation for the APM X-Gene SoC DMA device DTS binding arm64: dts: Add APM X-Gene SoC DMA device and DMA clock DTS nodes dmaengine: Add support for APM X-Gene SoC DMA engine driver dmaengine: usb-dmac: Add Renesas USB DMA Controller (USB-DMAC) driver dmaengine: renesas,usb-dmac: Add device tree bindings documentation dmaengine: edma: fixed wrongly initialized data parameter to the edma callback dmaengine: ste_dma40: fix implicit conversion ...
| * mmc: sh_mobile_sdhi: remove sh_mobile_sdhi_infoKuninori Morimoto2015-03-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current sh_mobile_sdhi's platform data is set via sh_mobile_sdhi_info and it is just copied to tmio_mmc_data. Now, tmio mmc platform data is specified via tmio_mmc_data. This patch replace sh_mobile_sdhi_info to tmio_mmc_data struct sh_mobile_sdhi_info { -> struct tmio_mmc_data { int dma_slave_tx; -> void *chan_priv_tx; int dma_slave_rx; -> void *chan_priv_rx; unsigned long tmio_flags; -> unsigned long flags; unsigned long tmio_caps; -> unsigned long capabilities; unsigned long tmio_caps2; -> unsigned long capabilities2; u32 tmio_ocr_mask; -> u32 ocr_mask; unsigned int cd_gpio; -> unsigned int cd_gpio; }; unsigned int hclk; void (*set_pwr)(...); void (*set_clk_div)(...); }; Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * mmc: tmio: mmc: tmio: tmio_mmc_data has .chan_priv_?xKuninori Morimoto2015-03-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dma_request_slave_channel_compat() in tmio_mmc_dma needs .chan_priv_tx/.chan_priv_rx. But these are copied from sh_mobile_sdhi only, and sh_mobile_sdhi_info is now almost same as tmio_mmc_data except .chan_priv_?x. sh_mobile_sdhi_info can be replaced to tmio_mmc_data, but it is used from ${LINUX}/arch/arm/mach-shmobile, ${LINUX}/arch/sh. So, this patch adds .chan_priv_?x into tmio_mmc_data as 1st step, and sh_mobile_sdhi driver has dummy operation for now. It will be replaced/removed together with platform data replace. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * mmc: tmio_mmc: remove slave_id settings for DMAEngineKuninori Morimoto2015-02-23
| | | | | | | | | | | | | | | | | | | | Current tmio_mmc sets dma_slave_config :: slave_id field for DMAEngine, but it is no longer needed. Let's remove it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * mmc: sh_mmcif: remove slave_id settings for DMAEngineKuninori Morimoto2015-02-23
| | | | | | | | | | | | | | | | | | | | Current sh_mmcif sets dma_slave_config :: slave_id field for DMAEngine, but it is no longer needed. Let's remove it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* | Merge tag 'mmc-4.1-rc1' of git://git.linaro.org/people/ulf.hansson/mmcLinus Torvalds2015-04-22
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull MMC fixes from Ulf Hansson: "Here is two mmc core fixes for v.4.1 rc1: - fix error code propagation in mmc_pwrseq_simple_alloc() - revert 'mmc: core: Convert mmc_driver to device_driver'" * tag 'mmc-4.1-rc1' of git://git.linaro.org/people/ulf.hansson/mmc: Revert "mmc: core: Convert mmc_driver to device_driver" mmc: pwrseq: Fix error code propagation in mmc_pwrseq_simple_alloc()
| * | Revert "mmc: core: Convert mmc_driver to device_driver"Ulf Hansson2015-04-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 6685ac62b2f0 ("mmc: core: Convert mmc_driver to device_driver") The reverted commit went too far in simplifing the device driver parts for mmc. Let's restore the old mmc_driver to enable driver core to sooner or later to remove the ->probe(), ->remove() and ->shutdown() callbacks from the struct device_driver. Note that, the old ->suspend|resume() callbacks in the struct mmc_driver don't need to be restored, since the mmc block layer has converted to the modern system PM ops. Fixes: 6685ac62b2f0 ("mmc: core: Convert mmc_driver to device_driver") Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
| * | mmc: pwrseq: Fix error code propagation in mmc_pwrseq_simple_alloc()Javier Martinez Canillas2015-04-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the struct mmc_pwrseq_match .alloc function used to allocate a struct mmc_pwrseq fails, the error is propagated to mmc_of_parse(). But instead of returning the error code in pwrseq, host->pwrseq is returned which will always be 0. So mmc_of_parse() succeeds even if the pwrseq .alloc function failed and host->pwrseq is NULL. This makes the SDIO device to not be powered if the power sequencing .alloc functions wants to be deferred due a missing resource because the mmc controller driver probe did wrongly succeed. Fixes: 0f12a0ce4ce4a ("mmc: pwrseq: simplify alloc/free hooks") Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | Merge tag 'armsoc-cleanup' of ↵Linus Torvalds2015-04-22
|\ \ \ | |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC cleanups from Olof Johansson: "We've got a fairly large cleanup branch this time. The bulk of this is removal of non-DT platforms of several flavors: - Atmel at91 platforms go full-DT, with removal of remaining board-file based support - OMAP removes legacy board files for three more platforms - removal of non-DT mach-msm, newer Qualcomm platforms now live in mach-qcom - Freescale i.MX25 also removes non-DT platform support" Most of the rest of the changes here are fallout from the above, i.e. for example removal of drivers that now lack platforms, etc. * tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (58 commits) mmc: Remove msm_sdcc driver gpio: Remove gpio-msm-v1 driver ARM: Remove mach-msm and associated ARM architecture code ARM: shmobile: cpuidle: Remove the pointless default driver ARM: davinci: dm646x: Add interrupt resource for McASPs ARM: davinci: irqs: Correct McASP1 TX interrupt definition for DM646x ARM: davinci: dm646x: Clean up the McASP DMA resources ARM: davinci: devices-da8xx: Add support for McASP2 on da830 ARM: davinci: devices-da8xx: Clean up and correct the McASP device creation ARM: davinci: devices-da8xx: Add interrupt resource to McASP structs ARM: davinci: devices-da8xx: Add resource name for the McASP DMA request ARM: OMAP2+: Remove legacy support for omap3 TouchBook ARM: OMAP3: Remove legacy support for devkit8000 ARM: OMAP3: Remove legacy support for EMA-Tech Stalker board ARM: shmobile: Consolidate the pm code for R-Car Gen2 ARM: shmobile: r8a7791: Correct SYSCIER value ARM: shmobile: r8a7790: Correct SYSCIER value ARM: at91: remove old setup ARM: at91: sama5d4: remove useless map_io ARM: at91: sama5 use SoC detection infrastructure ...
| * | mmc: Remove msm_sdcc driverStephen Boyd2015-03-27
| |/ | | | | | | | | | | | | | | | | | | | | | | | | This driver is orphaned now that mach-msm has been removed. Delete it. Cc: Chris Ball <chris@printf.net> Cc: David Brown <davidb@codeaurora.org> Cc: Bryan Huntsman <bryanh@codeaurora.org> Cc: Daniel Walker <dwalker@fifo99.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Kumar Gala <galak@codeaurora.org>
* | Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds2015-04-16
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull SCSI updates from James Bottomley: "This is the usual grab bag of driver updates (lpfc, qla2xxx, storvsc, aacraid, ipr) plus an assortment of minor updates. There's also a major update to aic1542 which moves the driver into this millenium" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (106 commits) change SCSI Maintainer email sd, mmc, virtio_blk, string_helpers: fix block size units ufs: add support to allow non standard behaviours (quirks) ufs-qcom: save controller revision info in internal structure qla2xxx: Update driver version to 8.07.00.18-k qla2xxx: Restore physical port WWPN only, when port down detected for FA-WWPN port. qla2xxx: Fix virtual port configuration, when switch port is disabled/enabled. qla2xxx: Prevent multiple firmware dump collection for ISP27XX. qla2xxx: Disable Interrupt handshake for ISP27XX. qla2xxx: Add debugging info for MBX timeout. qla2xxx: Add serdes read/write support for ISP27XX qla2xxx: Add udev notification to save fw dump for ISP27XX qla2xxx: Add message for sucessful FW dump collected for ISP27XX. qla2xxx: Add support to load firmware from file for ISP 26XX/27XX. qla2xxx: Fix beacon blink for ISP27XX. qla2xxx: Increase the wait time for firmware to be ready for P3P. qla2xxx: Fix crash due to wrong casting of reg for ISP27XX. qla2xxx: Fix warnings reported by static checker. lpfc: Update version to 10.5.0.0 for upstream patch set lpfc: Update copyright to 2015 ...
| * | sd, mmc, virtio_blk, string_helpers: fix block size unitsJames Bottomley2015-04-10
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current string_get_size() overflows when the device size goes over 2^64 bytes because the string helper routine computes the suffix from the size in bytes. However, the entirety of Linux thinks in terms of blocks, not bytes, so this will artificially induce an overflow on very large devices. Fix this by making the function string_get_size() take blocks and the block size instead of bytes. This should allow us to keep working until the current SCSI standard overflows. Also fix virtio_blk and mmc (both of which were also artificially multiplying by the block size to pass a byte side to string_get_size()). The mathematics of this is pretty simple: we're taking a product of size in blocks (S) and block size (B) and trying to re-express this in exponential form: S*B = R*N^E (where N, the exponent is either 1000 or 1024) and R < N. Mathematically, S = RS*N^ES and B=RB*N^EB, so if RS*RB < N it's easy to see that S*B = RS*RB*N^(ES+EB). However, if RS*BS > N, we can see that this can be re-expressed as RS*BS = R*N (where R = RS*BS/N < N) so the whole exponent becomes R*N^(ES+EB+1) [jejb: fix incorrect 32 bit do_div spotted by kbuild test robot <fengguang.wu@intel.com>] Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* | Merge tag 'powerpc-4.1-1' of ↵Linus Torvalds2015-04-16
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux Pull powerpc updates from Michael Ellerman: - Numerous minor fixes, cleanups etc. - More EEH work from Gavin to remove its dependency on device_nodes. - Memory hotplug implemented entirely in the kernel from Nathan Fontenot. - Removal of redundant CONFIG_PPC_OF by Kevin Hao. - Rewrite of VPHN parsing logic & tests from Greg Kurz. - A fix from Nish Aravamudan to reduce memory usage by clamping nodes_possible_map. - Support for pstore on powernv from Hari Bathini. - Removal of old powerpc specific byte swap routines by David Gibson. - Fix from Vasant Hegde to prevent the flash driver telling you it was flashing your firmware when it wasn't. - Patch from Ben Herrenschmidt to add an OPAL heartbeat driver. - Fix for an oops causing get/put_cpu_var() imbalance in perf by Jan Stancek. - Some fixes for migration from Tyrel Datwyler. - A new syscall to switch the cpu endian by Michael Ellerman. - Large series from Wei Yang to implement SRIOV, reviewed and acked by Bjorn. - A fix for the OPAL sensor driver from Cédric Le Goater. - Fixes to get STRICT_MM_TYPECHECKS building again by Michael Ellerman. - Large series from Daniel Axtens to make our PCI hooks per PHB rather than per machine. - Small patch from Sam Bobroff to explicitly abort non-suspended transactions on syscalls, plus a test to exercise it. - Numerous reworks and fixes for the 24x7 PMU from Sukadev Bhattiprolu. - Small patch to enable the hard lockup detector from Anton Blanchard. - Fix from Dave Olson for missing L2 cache information on some CPUs. - Some fixes from Michael Ellerman to get Cell machines booting again. - Freescale updates from Scott: Highlights include BMan device tree nodes, an MSI erratum workaround, a couple minor performance improvements, config updates, and misc fixes/cleanup. * tag 'powerpc-4.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: (196 commits) powerpc/powermac: Fix build error seen with powermac smp builds powerpc/pseries: Fix compile of memory hotplug without CONFIG_MEMORY_HOTREMOVE powerpc: Remove PPC32 code from pseries specific find_and_init_phbs() powerpc/cell: Fix iommu breakage caused by controller_ops change powerpc/eeh: Fix crash in eeh_add_device_early() on Cell powerpc/perf: Cap 64bit userspace backtraces to PERF_MAX_STACK_DEPTH powerpc/perf/hv-24x7: Fail 24x7 initcall if create_events_from_catalog() fails powerpc/pseries: Correct memory hotplug locking powerpc: Fix missing L2 cache size in /sys/devices/system/cpu powerpc: Add ppc64 hard lockup detector support oprofile: Disable oprofile NMI timer on ppc64 powerpc/perf/hv-24x7: Add missing put_cpu_var() powerpc/perf/hv-24x7: Break up single_24x7_request powerpc/perf/hv-24x7: Define update_event_count() powerpc/perf/hv-24x7: Whitespace cleanup powerpc/perf/hv-24x7: Define add_event_to_24x7_request() powerpc/perf/hv-24x7: Rename hv_24x7_event_update powerpc/perf/hv-24x7: Move debug prints to separate function powerpc/perf/hv-24x7: Drop event_24x7_request() powerpc/perf/hv-24x7: Use pr_devel() to log message ... Conflicts: tools/testing/selftests/powerpc/Makefile tools/testing/selftests/powerpc/tm/Makefile
| * | powerpc: Remove arch specific byteswappers from the MXC MMC driverDavid Gibson2015-03-23
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the MXC MMUC driver is used on a Freescale MPC512x machine, it contains some additional byteswapping code (I'm assuming this is a workaround for a hardware defect). This uses the ppc specific st_le32() function, but there's no reason not to use the generic swab32() function instead. gcc is capable of generating the efficient ppc byte-reversing load/store instructions without the arch-specific helper. This patch, therefore, switches to the generic byteswap routine. Cc: Shawn Guo <shawn.guo@linaro.org> Cc: Sascha Hauer <kernel@pengutronix.de> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | Merge branch 'for-linus' of ↵Linus Torvalds2015-04-14
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree from Jiri Kosina: "Usual trivial tree updates. Nothing outstanding -- mostly printk() and comment fixes and unused identifier removals" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: goldfish: goldfish_tty_probe() is not using 'i' any more powerpc: Fix comment in smu.h qla2xxx: Fix printks in ql_log message lib: correct link to the original source for div64_u64 si2168, tda10071, m88ds3103: Fix firmware wording usb: storage: Fix printk in isd200_log_config() qla2xxx: Fix printk in qla25xx_setup_mode init/main: fix reset_device comment ipwireless: missing assignment goldfish: remove unreachable line of code coredump: Fix do_coredump() comment stacktrace.h: remove duplicate declaration task_struct smpboot.h: Remove unused function prototype treewide: Fix typo in printk messages treewide: Fix typo in printk messages mod_devicetable: fix comment for match_flags
| * | treewide: Fix typo in printk messagesMasanari Iida2015-03-06
| | | | | | | | | | | | | | | | | | | | | | | | This patch fix spelling typo in printk messages. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | | mmc: sdhci-st: Update the quirks for this controller.Peter Griffin2015-04-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some additional quirks need to be enabled now we support UHS modes. This avoids some spurious warnings like "Got data interrupt 0x00000002 even though no data operation was in progress" Testing on stih410-b2120 board achieves the following speeds with HS200 eMMC card. max-frequency = 200Mhz /dev/mmcblk0p1: Timing buffered disk reads: 270 MB in 3.02 seconds = 89.54 MB/sec max-frequency = 100Mhz root@debian-armhf:~# hdparm -t /dev/mmcblk0p1 /dev/mmcblk0p1: Timing buffered disk reads: 210 MB in 3.00 seconds = 70.00 MB/sec max-frequency = 50Mhz root@debian-armhf:~# hdparm -t /dev/mmcblk0p1 /dev/mmcblk0p1: Timing buffered disk reads: 118 MB in 3.00 seconds = 39.28 MB/sec This is better than the 3.10 kernel which achieves 77.59 MB/sec at 200Mhz clock (same board/soc/eMMC). Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Acked-by: Maxime Coquelin <maxime.coquelin@st.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | mmc: sdhci-st: Add sdhci_st_set_uhs_signaling function.Peter Griffin2015-04-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To allow UHS modes to work properly we need to provide the st specific set_uhs_signaling callback function. This function differs from the generic sdhci_set_uhs_signaling callback in that we need to configure the correct delay depending on the UHS mode, and also set the V18_EN bit. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Acked-by: Maxime Coquelin <maxime.coquelin@st.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | mmc: sdhci-st: Add st_mmcss_cconfig function to configure mmcss glue registers.Peter Griffin2015-04-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | STiH407 family SoC's have glue registers in the flashSS subsystem which are used to configure the Arasan HC. This patch configures these glue registers according to what has been specified in the DT. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Acked-by: Maxime Coquelin <maxime.coquelin@st.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | mmc: sdhci-st: Add delay management functions for top registers (eMMC).Peter Griffin2015-04-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Due to the tight timing constraints in some UHS modes, it is required to have some delay management in the design. Two types of delay management are supported in the HW: - 1) Static delay management 2) Dynamic delay management NB: The delay management is only there when eMMC interface is selected. 1: Static delay management: is used to provide PVT dependent static delay on the clock/data lines to manage setup/hold requirements of the interface. The maximum delay possible is 3.25ns. These delays are PVT dependent, and thus delay values applied are not accurate and vary across provcess voltage and temperature range. Due to this these delays must not be used on the very time critical paths. 2. Dynamic delay locked loop (DLL): is used to provide dynamic delay management. The advantage of DLL is that it provides accurate & PVT indepedent delay. The DLL is used to provide delay on the loopback clock on "Read Path" to capture read data reliably. On TX path the clock on which output data is transmitted is delayed, resulting in delay of TX data. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | mmc: sdhci-st: Add support for de-asserting reset signal and top regs resourcePeter Griffin2015-04-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | STiH407 family SoC's can have a reset signal for the controller which needs to be managed. Also the eMMC controller has some additional 'top' memory mapped registers which are used to manage the dynamic and static delay required for UHS modes. This patch adds support for creating the mapping, which will be used by subsequent patches. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Acked-by: Maxime Coquelin <maxime.coquelin@st.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | mmc: sdhci-st: Add macros for register offsets and bitfields for mmcss glue regsPeter Griffin2015-04-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The stih407 family SoC's have additional glue registers in the flashSS which are used to configure the Arasan controller. This patch adds macros for the register offsets and bitfields which will be used by subsequent patches to support stih407 family SoC's. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Acked-by: Maxime Coquelin <maxime.coquelin@st.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | mmc: sdhci-esdhc-imx: Call mmc_of_parse()Fabio Estevam2015-04-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently it is not possible to use 'mmc-pwrseq-simple' property with this driver because mmc_of_parse() is never called. mmc_of_parse() calls mmc_pwrseq_alloc() that manages MMC power sequence and allows passing GPIOs in the devicetree to properly power/reset the Wifi chipset. When using mmc_of_parse() we no longer need to have custom code to request card-detect and write-protect pins, as this can now be handled by the mmc core. Tested on a imx6sl-warp board where BT/Wifi is functional and also on a imx6q-sabresd. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | mmc: dw_mmc: Add locking around cmd11 timerDoug Anderson2015-04-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is possible for the cmd11 interrupt to fire and delete the cmd11_timer before the cmd11_timer was actually setup. Let's fix this race by adding a few spinlocks. Note that the race wasn't seen in practice without adding some printk statements, but it still seems wise to fix. Fixes: 5c935165da79 ("mmc: dw_mmc: Add a timeout for sending CMD11") Signed-off-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | mmc: dw_mmc: Add a return in an unexpected cmd11 timeoutDoug Anderson2015-04-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If we get an unexpected cmd11 timeout we shouldn't actually treat it as a timeout (not that we really expect to get an unexpected cmd11 timeout, but still). Fixes: 5c935165da79 ("mmc: dw_mmc: Add a timeout for sending CMD11") Reported-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | mmc: dw_mmc: Increase cmd11 timeout to 500msDoug Anderson2015-04-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Although the cmd11 interrupt should come within 2ms, that's a very short time. Let's increase the timeout to be really sure that we don't get an accidnetal timeout. One case in particular this is useful is if you've got a serial console and printk in just the right places. Under that scenario I've seen delays of up to 130ms before the interrupt fired. CMD11 is only sent during card insertion, so this extra timeout shouldn't be terrible. Fixes: 5c935165da79 ("mmc: dw_mmc: Add a timeout for sending CMD11") Signed-off-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | mmc: dw_mmc: fix fifo ordering in big endianBen Dooks2015-04-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The dw_mmc driver changes to make the IO accesors endian agnostic did not take into account the fifo accesses do not need to be swapped. To fix this add a mmci_fifo_read/write wrapper to allow these to be passed through the IO without being swapped. Since these are now specific functions, it would be easier just to store the pointer to the fifo registers in the host block instead of the offset to them. So change the host->data_offset to host->fifo_reg (which also means we catch all the places this is read or written). Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | mmc: dw_mmc: change idmac descriptor files to __le32Ben Dooks2015-04-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The dw_mmc driver does not take into account the processor may be in big endian when writing the descriptors. Change the descriptors for the 32bit IDMA to use __le32 and ensure they are suitably swapped before writing. Note, this has not been tested as the socfpga driver does not try to use idma. Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | mmc: dw_mmc: make IO accessors endian agnosticBen Dooks2015-04-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The dw_mmc driver does not use endian agnostic IO accessors, so fix the use of __raw reads and writes to be the relaxed versions. This fixes the dw_mmc driver initialisation on Altera socfpga in big endian. Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | mmc: sdhci-of-arasan: Call OF parsing for MMCMichal Simek2015-04-08
| | | | | | | | | | | | | | | | | | | | | Also check MMC OF properties. The controller supports MMC too. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | mmc: sdhci-pci: fix 64 BIT DMA quirks for rtsxMicky Ching2015-04-08
| | | | | | | | | | | | | | | | | | | | | | | | rts5250 chip failed handle 64 bit ADMA for address below 4G. Add 64 BIT quirks to disable this feature. Signed-off-by: Micky Ching <micky_ching@realsil.com.cn> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | mmc: Add support for marking hpi as broken through devicetreeHans de Goede2015-04-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The eMMC on a tablet I've will stop working / communicating as soon as the kernel executes: mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_HPI_MGMT, 1, card->ext_csd.generic_cmd6_time); There seems to be no way to reliable identify eMMC-s which have a broken hpi implementation, but at least for eMMC's which are soldered onto a board we can work around this by specifying that hpi is broken in devicetree. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | mmc: sdhci-tegra: convert to use GPIO descriptorsMylene JOSSERAND2015-04-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | Modify the driver to handle GPIOs using the descriptor API. Signed-off-by: Mylene JOSSERAND <josserand.mylene@gmail.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Tested-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | mmc: omap_hsmmc: use generic slot-gpio isr to manage card detect pinAndreas Fenkart2015-03-31
| | | | | | | | | | | | | | | Signed-off-by: Andreas Fenkart <afenkart@gmail.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | mmc: omap_hsmmc: simplify card/cover detect isrAndreas Fenkart2015-03-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | strip the card dectet logic from cover detect isr and vice versa the generic mmc_gpio_cd_irqt isr, uses 200ms on removal/insertion, hence that should be fine here as well Signed-off-by: Andreas Fenkart <afenkart@gmail.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | mmc: dw_mmc: Don't try to enable the CD until we're sure we're not deferringDoug Anderson2015-03-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If dw_mci_init_slot() returns that we got a probe deferral then it may leave slot->mmc as NULL. That will cause dw_mci_enable_cd() to crash when it calls mmc_gpio_get_cd(). Fix this by moving the call of dw_mci_enable_cd() until we're sure that we're good. Note that if we have more than one slot and one defers (but the others don't) things won't work so well. ...but that's not a new thing and everyone has already agreed that multislot support ought to be removed from dw_mmc eventually anyway since it is unused, untested, and you can see several bugs like this by inspecting the code. Fixes: bcafaf5470f0 ("mmc: dw_mmc: Only enable CD after setup and only if needed") Signed-off-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | mmc: dw_mmc: Add a timeout for sending CMD11Doug Anderson2015-03-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the Designware databook's description of the "Voltage Switch Normal Scenario" it instructs us to set a timer and fail the voltage change if we don't see the voltage change interrupt within 2ms. Let's implement that. Without implementing this I have often been able to reproduce a hang while trying to send CMD11 on an rk3288-based board while constantly ejecting and inserting UHS cards. Signed-off-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | mmc: dw_mmc: enable card read threshold when mode is HS400Jaehoon Chung2015-03-31
| | | | | | | | | | | | | | | | | | | | | | | | Enable card-read-threshold, when eMMC mode is HS400. Refer to f1d2736c8156 (mmc: dw_mmc: control card read threshold) Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | mmc: core: Enable runtime PM management of host devicesUlf Hansson2015-03-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently those host drivers which have deployed runtime PM, deals with the runtime PM reference counting entirely by themselves. Since host drivers don't know when the core will send the next request through some of the host_ops callbacks, they need to handle runtime PM get/put between each an every request. In quite many cases this has some negative effects, since it leads to a high frequency of scheduled runtime PM suspend operations. That due to the runtime PM reference count will normally reach zero in-between every request. We can decrease that frequency, by enabling the core to deal with runtime PM reference counting of the host device. Since the core often knows that it will send a seqeunce of requests, it makes sense for it to keep a runtime PM reference count during these periods. More exactly, let's increase the runtime PM reference count by invoking pm_runtime_get_sync() from __mmc_claim_host(). Restore that action by invoking pm_runtime_mark_last_busy() and pm_runtime_put_autosuspend() in mmc_release_host(). In this way a runtime PM reference count will be kept during the complete cycle of a claim -> release host. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Konstantin Dorfman <kdorfman@codeaurora.org>
* | | ARM: OMAP2: HSMMC: explicit fields to declare cover/card detect pinAndreas Fenkart2015-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | board-rx51 has no card detect pin in the mmc slot, but can detect that the (cell-phone) cover has been removed and the card is accessible. The semantics between cover/card detect differ, the gpio on the slot informs you after the card has been removed, cover removal does not necessarily mean that the card has been removed. This means different code paths are necessary. To complete this we also want different fields in the platform data for cover and card detect. This separation is not pushed all the way down into struct omap2_hsmmc_info which is used to initialize the platform data. If we did that we had to go over all board files and set the new gpio_cod pin to -EINVAL. If we forget one board or some out-of-tree archicture forgets that the default '0' is used which is a valid pin number. Signed-off-by: Andreas Fenkart <afenkart@gmail.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | mmc: core: Remove the ->enable|disable() callbacksNeilBrown2015-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | These callbacks have been set to deprecated for some time. The last user (omap_hsmmc) has moved away from using them, which thus enables us to completely remove them. Signed-off-by: NeilBrown <neil@brown.name> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | mmc: omap_hsmmc: stop using ->enable|disable() callbacksNeilBrown2015-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ->enable|disable() callbacks are only used to get and put runtime PM references. Currently omap_hsmmc's ->set_ios() already does this itself. Other host drivers deals with runtime PM without using the ->enable|disable() callbacks and thus do the runtime PM reference counting themselves. Apply that approach for omap_hsmmc as well and then discard the ->enable|disable() callbacks. Signed-off-by: NeilBrown <neil@brown.name> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* | | mmc: sdhci-msm: Add support for vendor capabilities registersGeorgi Djakov2015-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | Some versions of this controller do not advertise their 3.0v and 8bit bus-width support capabilities. It is required to explicitly set these capabilities for the specific controller versions. Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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