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2017-10-04mmc: Delete bounce buffer handlingLinus Walleij
In may, Steven sent a patch deleting the bounce buffer handling and the CONFIG_MMC_BLOCK_BOUNCE option. I chose the less invasive path of making it a runtime config option, and we merged that successfully for kernel v4.12. The code is however just standing in the way and taking up space for seemingly no gain on any systems in wide use today. Pierre says the code was there to improve speed on TI SDHCI controllers on certain HP laptops and possibly some Ricoh controllers as well. Early SDHCI controllers lacked the scatter-gather feature, which made software bounce buffers a significant speed boost. We are clearly talking about the list of SDHCI PCI-based MMC/SD card readers found in the pci_ids[] list in drivers/mmc/host/sdhci-pci-core.c. The TI SDHCI derivative is not supported by the upstream kernel. This leaves the Ricoh. What we can however notice is that the x86 defconfigs in the kernel did not enable CONFIG_MMC_BLOCK_BOUNCE option, which means that any such laptop would have to have a custom configured kernel to actually take advantage of this bounce buffer speed-up. It simply seems like there was a speed optimization for the Ricoh controllers that noone was using. (I have not checked the distro defconfigs but I am pretty sure the situation is the same there.) Bounce buffers increased performance on the OMAP HSMMC at one point, and was part of the original submission in commit a45c6cb81647 ("[ARM] 5369/1: omap mmc: Add new omap hsmmc controller for 2430 and 34xx, v3") This optimization was removed in commit 0ccd76d4c236 ("omap_hsmmc: Implement scatter-gather emulation") which found that scatter-gather emulation provided even better performance. The same was introduced for SDHCI in commit 2134a922c6e7 ("sdhci: scatter-gather (ADMA) support") I am pretty positively convinced that software scatter-gather emulation will do for any host controller what the bounce buffers were doing. Essentially, the bounce buffer was a reimplementation of software scatter-gather-emulation in the MMC subsystem, and it should be done away with. Cc: Pierre Ossman <pierre@ossman.eu> Cc: Juha Yrjola <juha.yrjola@solidboot.com> Cc: Steven J. Hill <Steven.Hill@cavium.com> Cc: Shawn Lin <shawn.lin@rock-chips.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Suggested-by: Steven J. Hill <Steven.Hill@cavium.com> Suggested-by: Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-10-02mmc: core: add driver strength selection when selecting hs400esChanho Min
The driver strength selection is missed and required when selecting hs400es. So, It is added here. Fixes: 81ac2af65793ecf ("mmc: core: implement enhanced strobe support") Cc: stable@vger.kernel.org Signed-off-by: Hankyung Yu <hankyung.yu@lge.com> Signed-off-by: Chanho Min <chanho.min@lge.com> Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-10-01Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Thomas Gleixner: "This contains the following fixes and improvements: - Avoid dereferencing an unprotected VMA pointer in the fault signal generation code - Fix inline asm call constraints for GCC 4.4 - Use existing register variable to retrieve the stack pointer instead of forcing the compiler to create another indirect access which results in excessive extra 'mov %rsp, %<dst>' instructions - Disable branch profiling for the memory encryption code to prevent an early boot crash - Fix a sparse warning caused by casting the __user annotation in __get_user_asm_u64() away - Fix an off by one error in the loop termination of the error patch in the x86 sysfs init code - Add missing CPU IDs to various Intel specific drivers to enable the functionality on recent hardware - More (init) constification in the numachip code" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/asm: Use register variable to get stack pointer value x86/mm: Disable branch profiling in mem_encrypt.c x86/asm: Fix inline asm call constraints for GCC 4.4 perf/x86/intel/uncore: Correct num_boxes for IIO and IRP perf/x86/intel/rapl: Add missing CPU IDs perf/x86/msr: Add missing CPU IDs perf/x86/intel/cstate: Add missing CPU IDs x86: Don't cast away the __user in __get_user_asm_u64() x86/sysfs: Fix off-by-one error in loop termination x86/mm: Fix fault error path using unsafe vma pointer x86/numachip: Add const and __initconst to numachip2_clockevent
2017-10-01Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fixes from Thomas Gleixner: - Add a missing NULL pointer check in free_irq() - Fix a memory leak/memory corruption in the generic irq chip - Add missing rcu annotations for radix tree access - Use ffs instead of fls when extracting data from a chip register in the MIPS GIC irq driver - Fix the unmasking of IPI interrupts in the MIPS GIC driver so they end up at the target CPU and not at CPU0 * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irq/generic-chip: Don't replace domain's name irqdomain: Add __rcu annotations to radix tree accessors irqchip/mips-gic: Use effective affinity to unmask irqchip/mips-gic: Fix shifts to extract register fields genirq: Check __free_irq() return value for NULL
2017-09-30Merge tag 'mtd/fixes-for-4.14-rc3' of git://git.infradead.org/linux-mtdLinus Torvalds
Pull mtd fixes from Boris Brezillon: - Fix partition alignment check in mtdcore.c - Fix a buffer overflow in the Atmel NAND driver * tag 'mtd/fixes-for-4.14-rc3' of git://git.infradead.org/linux-mtd: mtd: nand: atmel: fix buffer overflow in atmel_pmecc_user mtd: Fix partition alignment check on multi-erasesize devices
2017-09-30Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Eight mostly minor fixes for recently discovered issues in drivers" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: ILLEGAL REQUEST + ASC==27 => target failure scsi: aacraid: Add a small delay after IOP reset scsi: scsi_transport_fc: Also check for NOTPRESENT in fc_remote_port_add() scsi: scsi_transport_fc: set scsi_target_id upon rescan scsi: scsi_transport_iscsi: fix the issue that iscsi_if_rx doesn't parse nlmsg properly scsi: aacraid: error: testing array offset 'bus' after use scsi: lpfc: Don't return internal MBXERR_ERROR code from probe function scsi: aacraid: Fix 2T+ drives on SmartIOC-2000
2017-09-29Merge tag 'platform-drivers-x86-v4.14-2' of ↵Linus Torvalds
git://git.infradead.org/linux-platform-drivers-x86 Pull x86 platform drivers fix from Darren Hart: "Newly discovered species of fujitsu laptops break some assumptions about ACPI device pairings. fujitsu-laptop: Don't oops when FUJ02E3 is not present" * tag 'platform-drivers-x86-v4.14-2' of git://git.infradead.org/linux-platform-drivers-x86: platform/x86: fujitsu-laptop: Don't oops when FUJ02E3 is not presnt
2017-09-29Merge tag 'led_fixes-4.14-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds Pull LED fixes from Jacek Anaszewski: "Four fixes for the as3645a LED flash controller and one update to MAINTAINERS" * tag 'led_fixes-4.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds: MAINTAINERS: Add entry for MediaTek PMIC LED driver as3645a: Unregister indicator LED on device unbind as3645a: Use integer numbers for parsing LEDs dt: bindings: as3645a: Use LED number to refer to LEDs as3645a: Use ams,input-max-microamp as documented in DT bindings
2017-09-29Merge tag 'md/4.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/mdLinus Torvalds
Pull MD fixes from Shaohua Li: "A few fixes for MD. Mainly fix a problem introduced in 4.13, which we retry bio for some code paths but not all in some situations" * tag 'md/4.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md: md/raid5: cap worker count dm-raid: fix a race condition in request handling md: fix a race condition for flush request handling md: separate request handling
2017-09-29Merge tag 'pci-v4.14-fixes-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI fixes from Bjorn Helgaas: - fix CONFIG_PCI=n build error (introduced in v4.14-rc1) (Geert Uytterhoeven) - fix a race in sysfs driver_override store/show (Nicolai Stange) * tag 'pci-v4.14-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: Fix race condition with driver_override PCI: Add dummy pci_acs_enabled() for CONFIG_PCI=n build
2017-09-29Merge tag 'drm-fixes-for-v4.14-rc3' of ↵Linus Torvalds
git://people.freedesktop.org/~airlied/linux Pull drm fixes from Dave Airlie: "Regular fixes pull, some amdkfd, amdgpu, etnaviv, sun4i, qxl, tegra fixes. I've got an outstanding pull for i915 but it wasn't on an rc2 base so I wanted to ship these out first, I might get to it before rc3 or I might not" * tag 'drm-fixes-for-v4.14-rc3' of git://people.freedesktop.org/~airlied/linux: drm/tegra: trace: Fix path to include qxl: fix framebuffer unpinning drm/sun4i: cec: Enable back CEC-pin framework drm/amdkfd: Print event limit messages only once per process drm/amdkfd: Fix kernel-queue wrapping bugs drm/amdkfd: Fix incorrect destroy_mqd parameter drm/radeon: disable hard reset in hibernate for APUs drm/amdgpu: revert tile table update for oland etnaviv: fix gem object list corruption etnaviv: fix submit error path qxl: fix primary surface handling drm/amdkfd: check for null dev to avoid a null pointer dereference
2017-09-29Merge tag 'iommu-fixes-v4.14-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull IOMMU fixes from Joerg Roedel: - A comment fix for 'struct iommu_ops' - Format string fixes for AMD IOMMU, unfortunatly I missed that during review. - Limit mediatek physical addresses to 32 bit for v7s to fix a warning triggered in io-page-table code. - Fix dma-sync in io-pgtable-arm-v7s code * tag 'iommu-fixes-v4.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu: Fix comment for iommu_ops.map_sg iommu/amd: pr_err() strings should end with newlines iommu/mediatek: Limit the physical address in 32bit for v7s iommu/io-pgtable-arm-v7s: Need dma-sync while there is no QUIRK_NO_DMA
2017-09-29Merge tag 'for-linus-4.14c-rc3-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen fixes from Juergen Gross: - avoid a warning when compiling with clang - consider read-only bits in xen-pciback when writing to a BAR - fix a boot crash of pv-domains * tag 'for-linus-4.14c-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/mmu: Call xen_cleanhighmap() with 4MB aligned for page tables mapping xen-pciback: relax BAR sizing write value check x86/xen: clean up clang build warning
2017-09-29Merge tag 'drm-misc-fixes-2017-09-28-1' of ↵Dave Airlie
git://anongit.freedesktop.org/git/drm-misc into drm-fixes Driver Changes: - qxl: fix primary surface and fb unpinning (Gerd) - sun41: fix CEC_PIN config gate now that media has been merged (Hans) - tegra: fix TRACE_INCLUDE_PATH (Thierry) Cc: Thierry Reding <treding@nvidia.com> Cc: Hans Verkuil <hverkuil@xs4all.nl> Cc: Gerd Hoffmann <kraxel@redhat.com> * tag 'drm-misc-fixes-2017-09-28-1' of git://anongit.freedesktop.org/git/drm-misc: drm/tegra: trace: Fix path to include qxl: fix framebuffer unpinning drm/sun4i: cec: Enable back CEC-pin framework qxl: fix primary surface handling
2017-09-28Merge tag 'acpi-4.14-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI fix from Rafael Wysocki: "This fixes an APEI problem that may cause a reported error to be missed due to a race condition" * tag 'acpi-4.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / APEI: clear error status before acknowledging the error
2017-09-28Merge tag 'pm-4.14-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fixes from Rafael Wysocki: "These fix a deadlock in the operating performance points (OPP) framework introduced during the 4.11 cycle, more issues with duplicate device objects for cpufreq-dt and cpufreq documentation. Specifics: - Fix a deadlock in the operating performance points (OPP) framework caused by a notifier callback taking a lock that's already held by its caller (Viresh Kumar). - Prevent the ti-cpufreq and cpufreq-dt-platdev drivers from attempting to register conflicting device objects which triggers a warning from sysfs (Suniel Mahesh). - Drop a stale reference to a piece of intel_pstate documentation that's not in the tree any more (Rafael Wysocki)" * tag 'pm-4.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: cpufreq: docs: Drop intel-pstate.txt from index.txt cpufreq: dt: Fix sysfs duplicate filename creation for platform-device PM / OPP: Call notifier without holding opp_table->lock
2017-09-28Merge branch 'acpi-apei'Rafael J. Wysocki
* acpi-apei: ACPI / APEI: clear error status before acknowledging the error
2017-09-28Merge tag 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma fixes from Doug Ledford: "Second -rc update for 4.14. Both Mellanox and Intel had a series of -rc fixes that landed this week. The Mellanox bunch is spread throughout the stack and not just in their driver, where as the Intel bunch was mostly in the hfi1 driver. And, several of the fixes in the hfi1 driver were more than just simple 5 line fixes. As a result, the hfi1 driver fixes has a sizable LOC count. Everything else is as one would expect in an RC cycle in terms of LOC count. One item that might jump out and make you think "That's not an rc item" is the fix that corrects a typo. But, that change fixes a typo in a user visible API that was just added in this merge window, so if we fix it now, we can fix it. If we don't, the typo is in the API forever. Another that might not appear to be a fix at first glance is the Simplify mlx5_ib_cont_pages patch, but the simplification allows them to fix a bug in the existing function whenever the length of an SGE exceeded page size. We also had to revert one patch from the merge window that was wrong. Summary: - a few core fixes - a few ipoib fixes - a few mlx5 fixes - a 7-patch hfi1 related series" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: IB/hfi1: Unsuccessful PCIe caps tuning should not fail driver load IB/hfi1: On error, fix use after free during user context setup Revert "IB/ipoib: Update broadcast object if PKey value was changed in index 0" IB/hfi1: Return correct value in general interrupt handler IB/hfi1: Check eeprom config partition validity IB/hfi1: Only reset QSFP after link up and turn off AOC TX IB/hfi1: Turn off AOC TX after offline substates IB/mlx5: Fix NULL deference on mlx5_ib_update_xlt failure IB/mlx5: Simplify mlx5_ib_cont_pages IB/ipoib: Fix inconsistency with free_netdev and free_rdma_netdev IB/ipoib: Fix sysfs Pkey create<->remove possible deadlock IB: Correct MR length field to be 64-bit IB/core: Fix qp_sec use after free access IB/core: Fix typo in the name of the tag-matching cap struct
2017-09-28Merge branches 'pm-opp' and 'pm-cpufreq'Rafael J. Wysocki
* pm-opp: PM / OPP: Call notifier without holding opp_table->lock * pm-cpufreq: cpufreq: docs: Drop intel-pstate.txt from index.txt cpufreq: dt: Fix sysfs duplicate filename creation for platform-device
2017-09-28xen-pciback: relax BAR sizing write value checkJan Beulich
Just like done in d2bd05d88d ("xen-pciback: return proper values during BAR sizing") for the ROM BAR, ordinary ones also shouldn't compare the written value directly against ~0, but consider the r/o bits at the bottom (if any). Signed-off-by: Jan Beulich <jbeulich@suse.com> Reviewed-by: Juergen Gross <jgross@suse.com> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2017-09-27md/raid5: cap worker countShaohua Li
static checker reports a potential integer overflow. Cap the worker count to avoid the overflow. Reported:-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Shaohua Li <shli@fb.com>
2017-09-27dm-raid: fix a race condition in request handlingShaohua Li
raid_map calls pers->make_request, which missed the suspend check. Fix it with the new md_handle_request API. Fix: cc27b0c78c79(md: fix deadlock between mddev_suspend() and md_write_start()) Cc: Heinz Mauelshagen <heinzm@redhat.com> Cc: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org Reviewed-by: NeilBrown <neilb@suse.com> Signed-off-by: Shaohua Li <shli@fb.com>
2017-09-27md: fix a race condition for flush request handlingShaohua Li
md_submit_flush_data calls pers->make_request, which missed the suspend check. Fix it with the new md_handle_request API. Reported-by: Nate Dailey <nate.dailey@stratus.com> Tested-by: Nate Dailey <nate.dailey@stratus.com> Fix: cc27b0c78c79(md: fix deadlock between mddev_suspend() and md_write_start()) Cc: stable@vger.kernel.org Reviewed-by: NeilBrown <neilb@suse.com> Signed-off-by: Shaohua Li <shli@fb.com>
2017-09-27md: separate request handlingShaohua Li
With commit cc27b0c78c79, pers->make_request could bail out without handling the bio. If that happens, we should retry. The commit fixes md_make_request but not other call sites. Separate the request handling part, so other call sites can use it. Reported-by: Nate Dailey <nate.dailey@stratus.com> Fix: cc27b0c78c79(md: fix deadlock between mddev_suspend() and md_write_start()) Cc: stable@vger.kernel.org Reviewed-by: NeilBrown <neilb@suse.com> Signed-off-by: Shaohua Li <shli@fb.com>
2017-09-27scsi: ILLEGAL REQUEST + ASC==27 => target failureMartin Wilck
ASC 0x27 is "WRITE PROTECTED". This error code is returned e.g. by Fujitsu ETERNUS systems under certain conditions for WRITE SAME 16 commands with UNMAP bit set. It should not be treated as a path error. In general, it makes sense to assume that being write protected is a target rather than a path property. Signed-off-by: Martin Wilck <mwilck@suse.com> Acked-by: Lee Duncan <lduncan@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-09-27scsi: aacraid: Add a small delay after IOP resetGuilherme G. Piccoli
Commit 0e9973ed3382 ("scsi: aacraid: Add periodic checks to see IOP reset status") changed the way driver checks if a reset succeeded. Now, after an IOP reset, aacraid immediately start polling a register to verify the reset is complete. This behavior cause regressions on the reset path in PowerPC (at least). Since the delay after the IOP reset was removed by the aforementioned patch, the fact driver just starts to read a register instantly after the reset was issued (by writing in another register) "corrupts" the reset procedure, which ends up failing all the time. The issue highly impacted kdump on PowerPC, since on kdump path we proactively issue a reset in adapter (through the reset_devices kernel parameter). This patch (re-)adds a delay right after IOP reset is issued. Empirically we measured that 3 seconds is enough, but for safety reasons we delay for 5s (and since it was 30s before, 5s is still a small amount). For reference, without this patch we observe the following messages on kdump kernel boot process: [ 76.294] aacraid 0003:01:00.0: IOP reset failed [ 76.294] aacraid 0003:01:00.0: ARC Reset attempt failed [ 86.524] aacraid 0003:01:00.0: adapter kernel panic'd ff. [ 86.524] aacraid 0003:01:00.0: Controller reset type is 3 [ 86.524] aacraid 0003:01:00.0: Issuing IOP reset [146.534] aacraid 0003:01:00.0: IOP reset failed [146.534] aacraid 0003:01:00.0: ARC Reset attempt failed Fixes: 0e9973ed3382 ("scsi: aacraid: Add periodic checks to see IOP reset status") Cc: stable@vger.kernel.org # v4.13+ Signed-off-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com> Acked-by: Dave Carroll <david.carroll@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-09-27ACPI / APEI: clear error status before acknowledging the errorTyler Baicar
Currently we acknowledge errors before clearing the error status. This could cause a new error to be populated by firmware in-between the error acknowledgment and the error status clearing which would cause the second error's status to be cleared without being handled. So, clear the error status before acknowledging the errors. Also, make sure to acknowledge the error if the error status read fails. Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org> Reviewed-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-09-28Merge branch 'drm-fixes-4.14' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-fixes A few fixes for 4.14. Nothing too major. * 'drm-fixes-4.14' of git://people.freedesktop.org/~agd5f/linux: drm/radeon: disable hard reset in hibernate for APUs drm/amdgpu: revert tile table update for oland
2017-09-28Merge branch 'etnaviv/fixes' of https://git.pengutronix.de/git/lst/linux ↵Dave Airlie
into drm-fixes Just two small etnaviv fixes, one fixing a list corruption, the other fixing a NULL ptr deref in an error path. * 'etnaviv/fixes' of https://git.pengutronix.de/git/lst/linux: etnaviv: fix gem object list corruption etnaviv: fix submit error path
2017-09-28Merge tag 'drm-amdkfd-fixes-2017-09-24' of ↵Dave Airlie
git://people.freedesktop.org/~gabbayo/linux into drm-fixes It contains the following fixes: - correct checking of return value - send correct parameter to function (According to the parameter type) - avoid spamming of dmesg log - fix queue wrapping calculations * tag 'drm-amdkfd-fixes-2017-09-24' of git://people.freedesktop.org/~gabbayo/linux: drm/amdkfd: Print event limit messages only once per process drm/amdkfd: Fix kernel-queue wrapping bugs drm/amdkfd: Fix incorrect destroy_mqd parameter drm/amdkfd: check for null dev to avoid a null pointer dereference
2017-09-27mtd: nand: atmel: fix buffer overflow in atmel_pmecc_userRichard Genoud
When calculating the size needed by struct atmel_pmecc_user *user, the dmu and delta buffer sizes were forgotten. This lead to a memory corruption (especially with a large ecc_strength). Link: http://lkml.kernel.org/r/1506503157.3016.5.camel@gmail.com Fixes: f88fc122cc34 ("mtd: nand: Cleanup/rework the atmel_nand driver") Cc: stable@vger.kernel.org Reported-by: Richard Genoud <richard.genoud@gmail.com> Pointed-at-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Reviewed-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-09-27IB/hfi1: Unsuccessful PCIe caps tuning should not fail driver loadHarish Chegondi
Failure to tune PCIe capabilities should not fail driver load. This can cause the driver load to fail on systems with any of the following: 1. HFI's parent is not root. Example: HFI card is behind a PCIe bridge. 2. HFI's parent is not PCI Express capable. In these situations, failure to tune PCIe capabilities should be logged in the system message logs but not cause the driver load to fail. This patch also ensures pcie capability word DevCtl is written only after a successful read and the capability tuning process continues even if read/write of the pcie capability word DevCtl fails. Fixes: c53df62c7a9a ("IB/hfi1: Check return values from PCI config API calls") Fixes: bf70a7757736 ("staging/rdma/hfi1: Enable WFR PCIe extended tags from the driver") Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com> Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Jakub Byczkowski <jakub.byczkowski@intel.com> Signed-off-by: Harish Chegondi <harish.chegondi@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-09-27IB/hfi1: On error, fix use after free during user context setupMichael J. Ruhl
During base context setup, if setup_base_ctxt() fails, the context is deallocated. This is incorrect because the context is referenced on return, to notify any waiting subcontext. If there are no subcontexts the pointer will be invalid. Reorganize the error path so that deallocate_ctxt() is called after all the possible subcontexts have been notified. Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-09-27Revert "IB/ipoib: Update broadcast object if PKey value was changed in index 0"Alex Estrin
commit 9a9b8112699d will cause core to fail UD QP from being destroyed on ipoib unload, therefore cause resources leakage. On pkey change event above patch modifies mgid before calling underlying driver to detach it from QP. Drivers' detach_mcast() will fail to find modified mgid it was never given to attach in a first place. Core qp->usecnt will never go down, so ib_destroy_qp() will fail. IPoIB driver actually does take care of new broadcast mgid based on new pkey by destroying an old mcast object in ipoib_mcast_dev_flush()) .... if (priv->broadcast) { rb_erase(&priv->broadcast->rb_node, &priv->multicast_tree); list_add_tail(&priv->broadcast->list, &remove_list); priv->broadcast = NULL; } ... then in restarted ipoib_macst_join_task() creating a new broadcast mcast object, sending join request and on completion tells the driver to attach to reinitialized QP: ... if (!priv->broadcast) { ... broadcast = ipoib_mcast_alloc(dev, 0); ... memcpy(broadcast->mcmember.mgid.raw, priv->dev->broadcast + 4, sizeof (union ib_gid)); priv->broadcast = broadcast; ... Fixes: 9a9b8112699d ("IB/ipoib: Update broadcast object if PKey value was changed in index 0") Cc: stable@vger.kernel.org Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Alex Estrin <alex.estrin@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Feras Daoud <ferasda@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-09-27IB/hfi1: Return correct value in general interrupt handlerKamenee Arumugam
The general interrupt handler returns IRQ_HANDLED whether an IRQ was handled or not. Determine if an IRQ was handled and return the correct value. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: Kamenee Arumugam <kamenee.arumugam@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-09-27IB/hfi1: Check eeprom config partition validityJan Sokolowski
Relying on a trailing magic value is incorrect. There are instances where this is not present as trailing magic value has a specific purpose which is not partition validation. Instead use the header magic value which is present in all variants of the platform configuration and is intended for validation. This is also used in other locations in the driver. Fixes: bc5214ee2922 (IB/hfi1: Handle missing magic values in config file) Reviewed-by: Jakub Byczkowski <jakub.byczkowski@intel.com> Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-09-27IB/hfi1: Only reset QSFP after link up and turn off AOC TXSebastian Sanchez
QSFP reset enables AOC transmitters by default. They should be off before moving to high power mode to complete the setup. There is no need to reset the QSFP during LNI failure as it was reset at link down. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Jakub Byczkowski <jakub.byczkowski@intel.com> Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-09-27IB/hfi1: Turn off AOC TX after offline substatesSebastian Sanchez
Offline.quietDuration was added in the 8051 firmware, and the driver only turns off the AOC transmitters when offline.quiet is reached. However, the AOC transmitters need to be turned off at the new state. Therefore, turn off the AOC transmitters at any offline substates including offline.quiet and offline.quietDuration, then recheck we reached offline.quiet to support backwards compatibility. Reviewed-by: Jakub Byczkowski <jakub.byczkowski@intel.com> Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-09-27iommu/amd: pr_err() strings should end with newlinesArvind Yadav
pr_err() messages should end with a new-line to avoid other messages being concatenated. So replace '/n' with '\n'. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Fixes: 45a01c42933b ('iommu/amd: Add function copy_dev_tables()') Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-09-27iommu/mediatek: Limit the physical address in 32bit for v7sYong Wu
The ARM short descriptor has already limited the physical address to 32bit after the commit <76557391433c> ("iommu/io-pgtable: Sanitise map/unmap addresses"). But in MediaTek 4GB mode, the physical address is from 0x1_0000_0000 to 0x1_ffff_ffff. this will cause: WARNING: CPU: 4 PID: 3900 at xxx/drivers/iommu/io-pgtable-arm-v7s.c:482 arm_v7s_map+0x40/0xf8 Modules linked in: CPU: 4 PID: 3900 Comm: weston Tainted: G S W 4.9.44 #1 Hardware name: MediaTek MT2712m1v1 board (DT) task: ffffffc0eaa5b280 task.stack: ffffffc0e9858000 PC is at arm_v7s_map+0x40/0xf8 LR is at mtk_iommu_map+0x64/0x90 pc : [<ffffff80085b09e8>] lr : [<ffffff80085b29fc>] pstate: 000001c5 sp : ffffffc0e985b920 x29: ffffffc0e985b920 x28: 0000000127d00000 x27: 0000000000100000 x26: ffffff8008f9e000 x25: 0000000000000003 x24: 0000000000100000 x23: 0000000127d00000 x22: 00000000ff800000 x21: ffffffc0f7ec8ce0 x20: 0000000000000003 x19: 0000000000000003 x18: 0000000000000002 x17: 0000007f7e5d72c0 x16: ffffff80082b0f08 x15: 0000000000000001 x14: 000000000000003f x13: 0000000000000000 x12: 0000000000000028 x11: 0088000000000000 x10: 0000000000000000 x9 : ffffff80092fa000 x8 : ffffffc0e9858000 x7 : ffffff80085b29d8 x6 : 0000000000000000 x5 : ffffff80085b09a8 x4 : 0000000000000003 x3 : 0000000000100000 x2 : 0000000127d00000 x1 : 00000000ff800000 x0 : 0000000000000001 ... Call trace: [<ffffff80085b09e8>] arm_v7s_map+0x40/0xf8 [<ffffff80085b29fc>] mtk_iommu_map+0x64/0x90 [<ffffff80085ab5f8>] iommu_map+0x100/0x3a0 [<ffffff80085ab99c>] default_iommu_map_sg+0x104/0x168 [<ffffff80085aead8>] iommu_dma_alloc+0x238/0x3f8 [<ffffff8008098b30>] __iommu_alloc_attrs+0xa8/0x260 [<ffffff80085f364c>] mtk_drm_gem_create+0xac/0x180 [<ffffff80085f3894>] mtk_drm_gem_dumb_create+0x54/0xc8 [<ffffff80085d576c>] drm_mode_create_dumb_ioctl+0xa4/0xd8 [<ffffff80085cb2a0>] drm_ioctl+0x1c0/0x490 In order to satify this, Limit the physical address to 32bit. Signed-off-by: Yong Wu <yong.wu@mediatek.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-09-27iommu/io-pgtable-arm-v7s: Need dma-sync while there is no QUIRK_NO_DMAYong Wu
Fix the commit 81b3c2521844 ("iommu/io-pgtable: Introduce explicit coherency"). If there is no IO_PGTABLE_QUIRK_NO_DMA, we should call dma_sync_single_for_device for cache synchronization. Signed-off-by: Yong Wu <yong.wu@mediatek.com> Fixes: 81b3c2521844 ('iommu/io-pgtable: Introduce explicit coherency') Reviewed-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-09-27mtd: Fix partition alignment check on multi-erasesize devicesBoris Brezillon
Commit 1eeef2d7483a ("mtd: handle partitioning on devices with 0 erasesize") introduced a regression on heterogeneous erase region devices. Alignment of the partition was tested against the master eraseblock size which can be bigger than the slave one, thus leading to some partitions being marked as read-only. Update wr_alignment to match this slave erasesize after this erasesize has been determined by picking the biggest erasesize of all the regions embedded in the MTD partition. Reported-by: Mathias Thore <Mathias.Thore@infinera.com> Fixes: 1eeef2d7483a ("mtd: handle partitioning on devices with 0 erasesize") Cc: <stable@vger.kernel.org> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Tested-by: Mathias Thore <Mathias.Thore@infinera.com> Reviewed-by: Mathias Thore <Mathias.Thore@infinera.com>
2017-09-27platform/x86: fujitsu-laptop: Don't oops when FUJ02E3 is not presntVille Syrjälä
My Fujitsu-Siemens Lifebook S6120 doesn't have the FUJ02E3 device, but it does have FUJ02B1. That means we do register the backlight device (and it even seems to work), but the code will oops as soon as we try to set the backlight brightness because it's trying to call call_fext_func() with a NULL device. Let's just skip those function calls when the FUJ02E3 device is not present. Cc: Jonathan Woithe <jwoithe@just42.net> Cc: Andy Shevchenko <andy@infradead.org> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: <stable@vger.kernel.org> # 4.13.x Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-09-26Merge tag 'mmc-v4.14-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc Pull MMC fixes from Ulf Hansson: - sdhci-pci: Fix voltage switch for some Intel host controllers - tmio: remove broken and noisy debug macro * tag 'mmc-v4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: sdhci-pci: Fix voltage switch for some Intel host controllers mmc: tmio: remove broken and noisy debug macro
2017-09-26drm/tegra: trace: Fix path to includeThierry Reding
The TRACE_INCLUDE_FILE macro needs to specify the path relative to the define_trace.h header rather than relative to the file defining it. Reported-by: Dmitry Osipenko <digetx@gmail.com> Tested-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170823171326.23620-1-thierry.reding@gmail.com
2017-09-25scsi: scsi_transport_fc: Also check for NOTPRESENT in fc_remote_port_add()Hannes Reinecke
During failover there is a small race window between fc_remote_port_add() and fc_timeout_deleted_rport(); the latter drops the lock after setting the port to NOTPRESENT, so if fc_remote_port_add() is called right at that time it will fail to detect the existing rport and happily adding a new structure, causing rports to get registered twice. Signed-off-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-09-25PCI: Fix race condition with driver_overrideNicolai Stange
The driver_override implementation is susceptible to a race condition when different threads are reading vs. storing a different driver override. Add locking to avoid the race condition. This is in close analogy to commit 6265539776a0 ("driver core: platform: fix race condition with driver_override") from Adrian Salido. Fixes: 782a985d7af2 ("PCI: Introduce new device binding path using pci_dev.driver_override") Signed-off-by: Nicolai Stange <nstange@suse.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: stable@vger.kernel.org # v3.16+
2017-09-26cpufreq: dt: Fix sysfs duplicate filename creation for platform-deviceSuniel Mahesh
ti-cpufreq and cpufreq-dt-platdev drivers are registering platform-device with same name "cpufreq-dt" using platform_device_register_*() routines. This is leading to build warnings appended below. Providing hardware information to OPP framework along with the platform- device creation should be done by ti-cpufreq driver before cpufreq-dt driver comes into place. This patch add's TI am33xx, am43 and dra7 platforms (which use opp-v2 property) to the blacklist of devices in cpufreq-dt-platform driver to avoid creating platform-device twice and remove build warnings. [ 2.370167] ------------[ cut here ]------------ [ 2.375087] WARNING: CPU: 0 PID: 1 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x58/0x78 [ 2.383112] sysfs: cannot create duplicate filename '/devices/platform/cpufreq-dt' [ 2.391219] Modules linked in: [ 2.394506] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.13.0-next-20170912 #1 [ 2.402006] Hardware name: Generic AM33XX (Flattened Device Tree) [ 2.408437] [<c0110a28>] (unwind_backtrace) from [<c010ca84>] (show_stack+0x10/0x14) [ 2.416568] [<c010ca84>] (show_stack) from [<c0827d64>] (dump_stack+0xac/0xe0) [ 2.424165] [<c0827d64>] (dump_stack) from [<c0137470>] (__warn+0xd8/0x104) [ 2.431488] [<c0137470>] (__warn) from [<c01374d0>] (warn_slowpath_fmt+0x34/0x44) [ 2.439351] [<c01374d0>] (warn_slowpath_fmt) from [<c03459d0>] (sysfs_warn_dup+0x58/0x78) [ 2.447938] [<c03459d0>] (sysfs_warn_dup) from [<c0345ab8>] (sysfs_create_dir_ns+0x80/0x98) [ 2.456719] [<c0345ab8>] (sysfs_create_dir_ns) from [<c082c554>] (kobject_add_internal+0x9c/0x2d4) [ 2.466124] [<c082c554>] (kobject_add_internal) from [<c082c7d8>] (kobject_add+0x4c/0x9c) [ 2.474712] [<c082c7d8>] (kobject_add) from [<c05803e4>] (device_add+0xcc/0x57c) [ 2.482489] [<c05803e4>] (device_add) from [<c0584b74>] (platform_device_add+0x100/0x220) [ 2.491085] [<c0584b74>] (platform_device_add) from [<c05855a8>] (platform_device_register_full+0xf4/0x118) [ 2.501305] [<c05855a8>] (platform_device_register_full) from [<c067023c>] (ti_cpufreq_init+0x150/0x22c) [ 2.511253] [<c067023c>] (ti_cpufreq_init) from [<c0101df4>] (do_one_initcall+0x3c/0x170) [ 2.519838] [<c0101df4>] (do_one_initcall) from [<c0c00eb4>] (kernel_init_freeable+0x1fc/0x2c4) [ 2.528974] [<c0c00eb4>] (kernel_init_freeable) from [<c083bcac>] (kernel_init+0x8/0x110) [ 2.537565] [<c083bcac>] (kernel_init) from [<c0107d18>] (ret_from_fork+0x14/0x3c) [ 2.545981] ---[ end trace 2fc00e213c13ab20 ]--- [ 2.551051] ------------[ cut here ]------------ [ 2.555931] WARNING: CPU: 0 PID: 1 at lib/kobject.c:240 kobject_add_internal+0x254/0x2d4 [ 2.564578] kobject_add_internal failed for cpufreq-dt with -EEXIST, don't try to register things with the same name in the same directory. [ 2.577977] Modules linked in: [ 2.581261] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 4.13.0-next-20170912 #1 [ 2.590013] Hardware name: Generic AM33XX (Flattened Device Tree) [ 2.596437] [<c0110a28>] (unwind_backtrace) from [<c010ca84>] (show_stack+0x10/0x14) [ 2.604573] [<c010ca84>] (show_stack) from [<c0827d64>] (dump_stack+0xac/0xe0) [ 2.612172] [<c0827d64>] (dump_stack) from [<c0137470>] (__warn+0xd8/0x104) [ 2.619494] [<c0137470>] (__warn) from [<c01374d0>] (warn_slowpath_fmt+0x34/0x44) [ 2.627362] [<c01374d0>] (warn_slowpath_fmt) from [<c082c70c>] (kobject_add_internal+0x254/0x2d4) [ 2.636666] [<c082c70c>] (kobject_add_internal) from [<c082c7d8>] (kobject_add+0x4c/0x9c) [ 2.645255] [<c082c7d8>] (kobject_add) from [<c05803e4>] (device_add+0xcc/0x57c) [ 2.653027] [<c05803e4>] (device_add) from [<c0584b74>] (platform_device_add+0x100/0x220) [ 2.661615] [<c0584b74>] (platform_device_add) from [<c05855a8>] (platform_device_register_full+0xf4/0x118) [ 2.671833] [<c05855a8>] (platform_device_register_full) from [<c067023c>] (ti_cpufreq_init+0x150/0x22c) [ 2.681779] [<c067023c>] (ti_cpufreq_init) from [<c0101df4>] (do_one_initcall+0x3c/0x170) [ 2.690377] [<c0101df4>] (do_one_initcall) from [<c0c00eb4>] (kernel_init_freeable+0x1fc/0x2c4) [ 2.699510] [<c0c00eb4>] (kernel_init_freeable) from [<c083bcac>] (kernel_init+0x8/0x110) [ 2.708106] [<c083bcac>] (kernel_init) from [<c0107d18>] (ret_from_fork+0x14/0x3c) [ 2.716217] ---[ end trace 2fc00e213c13ab21 ]--- Fixes: edeec420de24 (cpufreq: dt-cpufreq: platdev Automatically create device with OPP v2) Signed-off-by: Suniel Mahesh <sunil.m@techveda.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-09-25scsi: scsi_transport_fc: set scsi_target_id upon rescanHannes Reinecke
When an rport is found in the bindings array there is no guarantee that it had been a target port, so we need to call fc_remote_port_rolechg() here to ensure the scsi_target_id is set correctly. Otherwise the port will never be scanned. Signed-off-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Tested-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-09-25Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block fixes from Jens Axboe: - Two sets of NVMe pull requests from Christoph: - Fixes for the Fibre Channel host/target to fix spec compliance - Allow a zero keep alive timeout - Make the debug printk for broken SGLs work better - Fix queue zeroing during initialization - Set of RDMA and FC fixes - Target div-by-zero fix - bsg double-free fix. - ndb unknown ioctl fix from Josef. - Buffered vs O_DIRECT page cache inconsistency fix. Has been floating around for a long time, well reviewed. From Lukas. - brd overflow fix from Mikulas. - Fix for a loop regression in this merge window, where using a union for two members of the loop_cmd turned out to be a really bad idea. From Omar. - Fix for an iostat regression fix in this series, using the wrong API to get at the block queue. From Shaohua. - Fix for a potential blktrace delection deadlock. From Waiman. * 'for-linus' of git://git.kernel.dk/linux-block: (30 commits) nvme-fcloop: fix port deletes and callbacks nvmet-fc: sync header templates with comments nvmet-fc: ensure target queue id within range. nvmet-fc: on port remove call put outside lock nvme-rdma: don't fully stop the controller in error recovery nvme-rdma: give up reconnect if state change fails nvme-core: Use nvme_wq to queue async events and fw activation nvme: fix sqhd reference when admin queue connect fails block: fix a crash caused by wrong API fs: Fix page cache inconsistency when mixing buffered and AIO DIO nvmet: implement valid sqhd values in completions nvme-fabrics: Allow 0 as KATO value nvme: allow timed-out ios to retry nvme: stop aer posting if controller state not live nvme-pci: Print invalid SGL only once nvme-pci: initialize queue memory before interrupts nvmet-fc: fix failing max io queue connections nvme-fc: use transport-specific sgl format nvme: add transport SGL definitions nvme.h: remove FC transport-specific error values ...