- 21 Dec, 2019 29 commits
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Long Li authored
commit c21ce58e upstream. It's not necessary to queue invalidated memory registration to work queue, as all we need to do is to unmap the SG and make it usable again. This can save CPU cycles in normal data paths as memory registration errors are rare and normally only happens during reconnection. Signed-off-by:
Long Li <longli@microsoft.com> Cc: stable@vger.kernel.org Signed-off-by:
Steve French <stfrench@microsoft.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Long Li authored
commit 4357d45f upstream. During reconnecting, the transport may have already been destroyed and is in the process being reconnected. In this case, return -EAGAIN to not fail and to retry this I/O. Signed-off-by:
Long Li <longli@microsoft.com> Cc: stable@vger.kernel.org Signed-off-by:
Steve French <stfrench@microsoft.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Bjorn Andersson authored
commit 278bcb73 upstream. By just cancelling the deferred rx worker during GLINK instance teardown any pending deferred commands are leaked, so free them. Fixes: b4f8e52b ("rpmsg: Introduce Qualcomm RPM glink driver") Cc: stable@vger.kernel.org Acked-by:
Chris Lew <clew@codeaurora.org> Tested-by:
Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by:
Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Bjorn Andersson authored
commit c3dadc19 upstream. Attempting to transmit rx_done messages after the GLINK instance is being torn down will cause use after free and memory leaks. So cancel the intent_work and free up the pending intents. With this there are no concurrent accessors of the channel left during qcom_glink_native_remove() and there is therefor no need to hold the spinlock during this operation - which would prohibit the use of cancel_work_sync() in the release function. So remove this. Fixes: 1d2ea36e ("rpmsg: glink: Add rx done command") Cc: stable@vger.kernel.org Acked-by:
Chris Lew <clew@codeaurora.org> Tested-by:
Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by:
Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Chris Lew authored
commit f7e71498 upstream. The device release function is set before registering with rpmsg. If rpmsg registration fails, the framework will call device_put(), which invokes the release function. The channel create logic does not need to free rpdev if rpmsg_register_device() fails and release is called. Fixes: b4f8e52b ("rpmsg: Introduce Qualcomm RPM glink driver") Cc: stable@vger.kernel.org Tested-by:
Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by:
Chris Lew <clew@codeaurora.org> Signed-off-by:
Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Chris Lew authored
commit b646293e upstream. In a remote processor crash scenario, there is no guarantee the remote processor sent close requests before it went into a bad state. Remove the reference that is normally handled by the close command in the so channel resources can be released. Fixes: b4f8e52b ("rpmsg: Introduce Qualcomm RPM glink driver") Cc: stable@vger.kernel.org Tested-by:
Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by:
Chris Lew <clew@codeaurora.org> Reported-by:
Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by:
Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Arun Kumar Neelakantam authored
commit ac74ea01 upstream. Extra channel reference put when remote sending OPEN_ACK after timeout causes use-after-free while handling next remote CLOSE command. Remove extra reference put in timeout case to avoid use-after-free. Fixes: b4f8e52b ("rpmsg: Introduce Qualcomm RPM glink driver") Cc: stable@vger.kernel.org Tested-by:
Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by:
Arun Kumar Neelakantam <aneela@codeaurora.org> Signed-off-by:
Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Arun Kumar Neelakantam authored
commit b85f6b60 upstream. Memory allocated for re-usable intents are not freed during channel cleanup which causes memory leak in system. Check and free all re-usable memory to avoid memory leak. Fixes: 933b45da ("rpmsg: glink: Add support for TX intents") Cc: stable@vger.kernel.org Acked-By:
Chris Lew <clew@codeaurora.org> Tested-by:
Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by:
Arun Kumar Neelakantam <aneela@codeaurora.org> Reported-by:
Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by:
Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Chris Lew authored
commit 4623e8bf upstream. When wrapping around the FIFO, the remote expects the tail pointer to be reset to 0 on the edge case where the tail equals the FIFO length. Fixes: caf989c3 ("rpmsg: glink: Introduce glink smem based transport") Cc: stable@vger.kernel.org Signed-off-by:
Chris Lew <clew@codeaurora.org> Signed-off-by:
Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Max Filippov authored
commit c2d9aa3b upstream. syscall return value is in the register a2, not a0. Cc: stable@vger.kernel.org # v5.0+ Fixes: 9f24f3c1 ("xtensa: implement tracehook functions and enable HAVE_ARCH_TRACEHOOK") Signed-off-by:
Max Filippov <jcmvbkbc@gmail.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Max Filippov authored
commit 36de10c4 upstream. Virtual and translated addresses retrieved by the xtensa TLB sanity checker must be consistent, i.e. correspond to the same state of the checked TLB entry. KASAN shadow memory is mapped dynamically using auto-refill TLB entries and thus may change TLB state between the virtual and translated address retrieval, resulting in false TLB insanity report. Move read_xtlb_translation close to read_xtlb_virtual to make sure that read values are consistent. Cc: stable@vger.kernel.org Fixes: a99e07ee ("xtensa: check TLB sanity on return to userspace") Signed-off-by:
Max Filippov <jcmvbkbc@gmail.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Bob Peterson authored
commit fe5e7ba1 upstream. Commit 9287c645 fixed a situation in which gfs2 could use a glock after it had been freed. To do that, it temporarily added a new glock reference by calling gfs2_glock_hold in function gfs2_add_revoke. However, if the bd element was removed by gfs2_trans_remove_revoke, it failed to drop the additional reference. This patch adds logic to gfs2_trans_remove_revoke to properly drop the additional glock reference. Fixes: 9287c645 ("gfs2: Fix occasional glock use-after-free") Cc: stable@vger.kernel.org # v5.2+ Signed-off-by:
Bob Peterson <rpeterso@redhat.com> Signed-off-by:
Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Andreas Gruenbacher authored
commit f53056c4 upstream. In gfs2_page_mkwrite's gfs2_allocate_page_backing helper, try to allocate as many blocks at once as we need. Pass in the size of the requested allocation. Fixes: 35af80ae ("gfs2: don't use buffer_heads in gfs2_allocate_page_backing") Cc: stable@vger.kernel.org # v5.3+ Signed-off-by:
Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Max Filippov authored
commit e64681b4 upstream. KASAN shadow map doesn't need to be accessible through the linear kernel mapping, allocate its pages with MEMBLOCK_ALLOC_ANYWHERE so that high memory can be used. This frees up to ~100MB of low memory on xtensa configurations with KASAN and high memory. Cc: stable@vger.kernel.org # v5.1+ Fixes: f240ec09 ("memblock: replace memblock_alloc_base(ANYWHERE) with memblock_phys_alloc") Reviewed-by:
Mike Rapoport <rppt@linux.ibm.com> Signed-off-by:
Max Filippov <jcmvbkbc@gmail.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Andreas Gruenbacher authored
commit cc90bc68 upstream. This partially reverts commit e3a5d8e3. Commit e3a5d8e3 ("check bi_size overflow before merge") adds a bio_full check to __bio_try_merge_page. This will cause __bio_try_merge_page to fail when the last bi_io_vec has been reached. Instead, what we want here is only the bi_size overflow check. Fixes: e3a5d8e3 ("block: check bi_size overflow before merge") Cc: stable@vger.kernel.org # v5.4+ Reviewed-by:
Ming Lei <ming.lei@redhat.com> Signed-off-by:
Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by:
Jens Axboe <axboe@kernel.dk> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Leonard Crestez authored
commit c6a3aea9 upstream. QOS requests for DEFAULT_VALUE are supposed to be ignored but this is not the case for FREQ_QOS_MAX. Adding one request for MAX_DEFAULT_VALUE and one for a real value will cause freq_qos_read_value to unexpectedly return MAX_DEFAULT_VALUE (-1). This happens because freq_qos max value is aggregated with PM_QOS_MIN but FREQ_QOS_MAX_DEFAULT_VALUE is (-1) so it's smaller than other values. Fix this by redefining FREQ_QOS_MAX_DEFAULT_VALUE to S32_MAX. Looking at current users for freq_qos it seems that none of them create requests for FREQ_QOS_MAX_DEFAULT_VALUE. Fixes: 77751a46 ("PM: QoS: Introduce frequency QoS") Signed-off-by:
Leonard Crestez <leonard.crestez@nxp.com> Reported-by:
Matthias Kaehlcke <mka@chromium.org> Reviewed-by:
Matthias Kaehlcke <mka@chromium.org> Cc: 5.4+ <stable@vger.kernel.org> # 5.4+ Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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George Cherian authored
commit f338bb9f upstream. Enhance the ACS quirk for Cavium Processors. Add the root port vendor IDs for ThunderX2 and ThunderX3 series of processors. [bhelgaas: add Fixes: and stable tag] Fixes: f2ddaf8d ("PCI: Apply Cavium ThunderX ACS quirk to more Root Ports") Link: https://lore.kernel.org/r/20191111024243.GA11408@dc5-eodlnx05.marvell.com Signed-off-by:
George Cherian <george.cherian@marvell.com> Signed-off-by:
Bjorn Helgaas <bhelgaas@google.com> Reviewed-by:
Robert Richter <rrichter@marvell.com> Cc: stable@vger.kernel.org # v4.12+ Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Yoshihiro Shimoda authored
commit 7c7e53e1 upstream. The R-Car Gen2/3 manual - available at: https://www.renesas.com/eu/en/products/microcontrollers-microprocessors/rz/rzg/rzg1m.html#documents "RZ/G Series User's Manual: Hardware" section strictly enforces the MACCTLR inizialization value - 39.3.1 - "Initial Setting of PCI Express": "Be sure to write the initial value (= H'80FF 0000) to MACCTLR before enabling PCIETCTLR.CFINIT". To avoid unexpected behavior and to match the SW initialization sequence guidelines, this patch programs the MACCTLR with the correct value. Note that the MACCTLR.SPCHG bit in the MACCTLR register description reports that "Only writing 1 is valid and writing 0 is invalid" but this "invalid" has to be interpreted as a write-ignore aka "ignored", not "prohibited". Reported-by:
Eugeniu Rosca <erosca@de.adit-jv.com> Fixes: c25da477 ("PCI: rcar: Add Renesas R-Car PCIe driver") Fixes: be20bbcb ("PCI: rcar: Add the initialization of PCIe link in resume_noirq()") Signed-off-by:
Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by:
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by:
Geert Uytterhoeven <geert+renesas@glider.be> Cc: <stable@vger.kernel.org> # v5.2+ Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Subbaraya Sundeep authored
commit 73884a70 upstream. As per PCIe r5.0, sec 7.8.5.2, fixed bus numbers of a bridge must be zero when no function that uses EA is located behind it. Hence, if EA supplies bus numbers of zero, assign bus numbers normally. A secondary bus can never have a bus number of zero, so setting a bridge's Secondary Bus Number to zero makes downstream devices unreachable. [bhelgaas: retain bool return value so "zero is invalid" logic is local] Fixes: 2dbce590 ("PCI: Assign bus numbers present in EA capability for bridges") Link: https://lore.kernel.org/r/1572850664-9861-1-git-send-email-sundeep.lkml@gmail.com Signed-off-by:
Subbaraya Sundeep <sbhatta@marvell.com> Signed-off-by:
Bjorn Helgaas <bhelgaas@google.com> Cc: stable@vger.kernel.org # v5.2+ Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Jian-Hong Pan authored
commit e045fa29 upstream. When a driver enables MSI-X, msix_program_entries() reads the MSI-X Vector Control register for each vector and saves it in desc->masked. Each register is 32 bits and bit 0 is the actual Mask bit. When we restored these registers during resume, we previously set the Mask bit if *any* bit in desc->masked was set instead of when the Mask bit itself was set: pci_restore_state pci_restore_msi_state __pci_restore_msix_state for_each_pci_msi_entry msix_mask_irq(entry, entry->masked) <-- entire u32 word __pci_msix_desc_mask_irq(desc, flag) mask_bits = desc->masked & ~PCI_MSIX_ENTRY_CTRL_MASKBIT if (flag) <-- testing entire u32, not just bit 0 mask_bits |= PCI_MSIX_ENTRY_CTRL_MASKBIT writel(mask_bits, desc_addr + PCI_MSIX_ENTRY_VECTOR_CTRL) This means that after resume, MSI-X vectors were masked when they shouldn't be, which leads to timeouts like this: nvme nvme0: I/O 978 QID 3 timeout, completion polled On resume, set the Mask bit only when the saved Mask bit from suspend was set. This should remove the need for 19ea025e ("nvme: Add quirk for Kingston NVME SSD running FW E8FK11.T"). [bhelgaas: commit log, move fix to __pci_msix_desc_mask_irq()] Link: https://bugzilla.kernel.org/show_bug.cgi?id=204887 Link: https://lore.kernel.org/r/20191008034238.2503-1-jian-hong@endlessm.com Fixes: f2440d9a ("PCI MSI: Refactor interrupt masking code") Signed-off-by:
Jian-Hong Pan <jian-hong@endlessm.com> Signed-off-by:
Bjorn Helgaas <bhelgaas@google.com> Cc: stable@vger.kernel.org Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Steffen Liebergeld authored
commit d8558ac8 upstream. According to documentation [0] the correct offset for the Upstream Peer Decode Configuration Register (UPDCR) is 0x1014. It was previously defined as 0x1114. d99321b6 ("PCI: Enable quirks for PCIe ACS on Intel PCH root ports") intended to enforce isolation between PCI devices allowing them to be put into separate IOMMU groups. Due to the wrong register offset the intended isolation was not fully enforced. This is fixed with this patch. Please note that I did not test this patch because I have no hardware that implements this register. [0] https://www.intel.com/content/dam/www/public/us/en/documents/datasheets/4th-gen-core-family-mobile-i-o-datasheet.pdf (page 325) Fixes: d99321b6 ("PCI: Enable quirks for PCIe ACS on Intel PCH root ports") Link: https://lore.kernel.org/r/7a3505df-79ba-8a28-464c-88b83eefffa6@kernkonzept.com Signed-off-by:
Steffen Liebergeld <steffen.liebergeld@kernkonzept.com> Signed-off-by:
Bjorn Helgaas <bhelgaas@google.com> Reviewed-by:
Andrew Murray <andrew.murray@arm.com> Acked-by:
Ashok Raj <ashok.raj@intel.com> Cc: stable@vger.kernel.org # v3.15+ Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Lukas Wunner authored
commit 157c1062 upstream. A sysfs request to enable or disable a PCIe hotplug slot should not return before it has been carried out. That is sought to be achieved by waiting until the controller's "pending_events" have been cleared. However the IRQ thread pciehp_ist() clears the "pending_events" before it acts on them. If pciehp_sysfs_enable_slot() / _disable_slot() happen to check the "pending_events" after they have been cleared but while pciehp_ist() is still running, the functions may return prematurely with an incorrect return value. Fix by introducing an "ist_running" flag which must be false before a sysfs request is allowed to return. Fixes: 32a8cef2 ("PCI: pciehp: Enable/disable exclusively from IRQ thread") Link: https://lore.kernel.org/linux-pci/1562226638-54134-1-git-send-email-wangxiongfeng2@huawei.com Link: https://lore.kernel.org/r/4174210466e27eb7e2243dd1d801d5f75baaffd8.1565345211.git.lukas@wunner.de Reported-and-tested-by:
Xiongfeng Wang <wangxiongfeng2@huawei.com> Signed-off-by:
Lukas Wunner <lukas@wunner.de> Signed-off-by:
Bjorn Helgaas <bhelgaas@google.com> Cc: stable@vger.kernel.org # v4.19+ Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Dexuan Cui authored
commit f2c33cca upstream. pci_pm_thaw_noirq() is supposed to return the device to D0 and restore its configuration registers, but previously it only did that for devices whose drivers implemented the new power management ops. Hibernation, e.g., via "echo disk > /sys/power/state", involves freezing devices, creating a hibernation image, thawing devices, writing the image, and powering off. The fact that thawing did not return devices with legacy power management to D0 caused errors, e.g., in this path: pci_pm_thaw_noirq if (pci_has_legacy_pm_support(pci_dev)) # true for Mellanox VF driver return pci_legacy_resume_early(dev) # ... legacy PM skips the rest pci_set_power_state(pci_dev, PCI_D0) pci_restore_state(pci_dev) pci_pm_thaw if (pci_has_legacy_pm_support(pci_dev)) pci_legacy_resume drv->resume mlx4_resume ... pci_enable_msix_range ... if (dev->current_state != PCI_D0) # <--- return -EINVAL; which caused these warnings: mlx4_core a6d1:00:02.0: INTx is not supported in multi-function mode, aborting PM: dpm_run_callback(): pci_pm_thaw+0x0/0xd7 returns -95 PM: Device a6d1:00:02.0 failed to thaw: error -95 Return devices to D0 and restore config registers for all devices, not just those whose drivers support new power management. [bhelgaas: also call pci_restore_state() before pci_legacy_resume_early(), update comment, add stable tag, commit log] Link: https://lore.kernel.org/r/KU1P153MB016637CAEAD346F0AA8E3801BFAD0@KU1P153MB0166.APCP153.PROD.OUTLOOK.COM Signed-off-by:
Dexuan Cui <decui@microsoft.com> Signed-off-by:
Bjorn Helgaas <bhelgaas@google.com> Reviewed-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: stable@vger.kernel.org # v4.13+ Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Logan Gunthorpe authored
commit 6acdf7e1 upstream. The part_event_bitmap register is 64 bits wide, so read it with ioread64() instead of the 32-bit ioread32(). Fixes: 52eabba5 ("switchtec: Add IOCTLs to the Switchtec driver") Link: https://lore.kernel.org/r/20190910195833.3891-1-logang@deltatee.com Reported-by:
Doug Meyer <dmeyer@gigaio.com> Signed-off-by:
Logan Gunthorpe <logang@deltatee.com> Signed-off-by:
Bjorn Helgaas <bhelgaas@google.com> Cc: stable@vger.kernel.org # v4.12+ Cc: Kelvin Cao <Kelvin.Cao@microchip.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Ulf Hansson authored
commit 2ac55d5e upstream. It have turned out that it's not a good idea to unconditionally do a power cycle and then to re-initialize the SDIO card, as currently done through mmc_hw_reset() -> mmc_sdio_hw_reset(). This because there may be multiple SDIO func drivers probed, who also shares the same SDIO card. To address these scenarios, one may be tempted to use a notification mechanism, as to allow the core to inform each of the probed func drivers, about an ongoing HW reset. However, supporting such an operation from the func driver point of view, may not be entirely trivial. Therefore, let's use a more simplistic approach to solve the problem, by instead forcing the card to be removed and re-detected, via scheduling a rescan-work. In this way, we can rely on existing infrastructure, as the func driver's ->remove() and ->probe() callbacks, becomes invoked to deal with the cleanup and the re-initialization. This solution may be considered as rather heavy, especially if a func driver doesn't share its card with other func drivers. To address this, let's keep the current immediate HW reset option as well, but run it only when there is one func driver probed for the card. Finally, to allow the caller of mmc_hw_reset(), to understand if the reset is being asynchronously managed from a scheduled work, it returns 1 (propagated from mmc_sdio_hw_reset()). If the HW reset is executed successfully and synchronously it returns 0, which maintains the existing behaviour. Reviewed-by:
Douglas Anderson <dianders@chromium.org> Tested-by:
Douglas Anderson <dianders@chromium.org> Cc: stable@vger.kernel.org # v5.4+ Signed-off-by:
Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Ulf Hansson authored
commit 99b4ddd8 upstream. Upfront in mmc_rescan() we use the host->rescan_entered flag, to allow scanning only once for non-removable cards. Therefore, it's also not possible that we can have a corresponding card bus attached (host->bus_ops is NULL), when we are scanning non-removable cards. For this reason, let' drop the check for mmc_card_is_removable() as it's redundant. Reviewed-by:
Douglas Anderson <dianders@chromium.org> Tested-by:
Douglas Anderson <dianders@chromium.org> Cc: stable@vger.kernel.org # v5.4+ Signed-off-by:
Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Chaotian Jing authored
commit a0d4c7eb upstream. MMC IOCTLS with R1B responses may cause the card to enter the busy state, which means it's not ready to receive a new request. To prevent new requests from being sent to the card, use a CMD13 polling loop to verify that the card returns to the transfer state, before completing the request. Signed-off-by:
Chaotian Jing <chaotian.jing@mediatek.com> Reviewed-by:
Avri Altman <avri.altman@wdc.com> Cc: stable@vger.kernel.org Signed-off-by:
Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Chaotian Jing authored
commit 3869468e upstream. To prepare for more users of card_busy_detect(), let's drop the struct request * as an in-parameter and convert to log the error message via dev_err() instead of pr_err(). Signed-off-by:
Chaotian Jing <chaotian.jing@mediatek.com> Reviewed-by:
Avri Altman <avri.altman@wdc.com> Cc: stable@vger.kernel.org Signed-off-by:
Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fredrik Noring authored
commit f8c63edf upstream. Fix commit 7b81cb6b ("usb: add a HCD_DMA flag instead of guestimating DMA capabilities") where local memory USB drivers erroneously allocate DMA memory instead of pool memory, causing OHCI Unrecoverable Error, disabled HC died; cleaning up The order between hcd_uses_dma() and hcd->localmem_pool is now arranged as in hcd_buffer_alloc() and hcd_buffer_free(), with the test for hcd->localmem_pool placed first. As an alternative, one might consider adjusting hcd_uses_dma() with static inline bool hcd_uses_dma(struct usb_hcd *hcd) { - return IS_ENABLED(CONFIG_HAS_DMA) && (hcd->driver->flags & HCD_DMA); + return IS_ENABLED(CONFIG_HAS_DMA) && + (hcd->driver->flags & HCD_DMA) && + (hcd->localmem_pool == NULL); } One can also consider unsetting HCD_DMA for local memory pool drivers. Fixes: 7b81cb6b ("usb: add a HCD_DMA flag instead of guestimating DMA capabilities") Cc: stable <stable@vger.kernel.org> Signed-off-by:
Fredrik Noring <noring@nocrew.org> Link: https://lore.kernel.org/r/20191210172905.GA52526@sx9 Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 18 Dec, 2019 11 commits
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Greg Kroah-Hartman authored
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Heiner Kallweit authored
[ Upstream commit 00222d13 ] RTL8125 also requires to enable RX for WoL. v2: add missing Fixes tag Fixes: f1bce4ad ("r8169: add support for RTL8125") Signed-off-by:
Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Vladimir Oltean authored
[ Upstream commit 9385973f ] Currently a switch driver deinit frees the regmaps, but the PTP clock is still out there, available to user space via /dev/ptpN. Any PTP operation is a ticking time bomb, since it will attempt to use the freed regmaps and thus trigger kernel panics: [ 4.291746] fsl_enetc 0000:00:00.2 eth1: error -22 setting up slave phy [ 4.291871] mscc_felix 0000:00:00.5: Failed to register DSA switch: -22 [ 4.308666] mscc_felix: probe of 0000:00:00.5 failed with error -22 [ 6.358270] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000088 [ 6.367090] Mem abort info: [ 6.369888] ESR = 0x96000046 [ 6.369891] EC = 0x25: DABT (current EL), IL = 32 bits [ 6.369892] SET = 0, FnV = 0 [ 6.369894] EA = 0, S1PTW = 0 [ 6.369895] Data abort info: [ 6.369897] ISV = 0, ISS = 0x00000046 [ 6.369899] CM = 0, WnR = 1 [ 6.369902] user pgtable: 4k pages, 48-bit VAs, pgdp=00000020d58c7000 [ 6.369904] [0000000000000088] pgd=00000020d5912003, pud=00000020d5915003, pmd=0000000000000000 [ 6.369914] Internal error: Oops: 96000046 [#1] PREEMPT SMP [ 6.420443] Modules linked in: [ 6.423506] CPU: 1 PID: 262 Comm: phc_ctl Not tainted 5.4.0-03625-gb7b2a5dadd7f #204 [ 6.431273] Hardware name: LS1028A RDB Board (DT) [ 6.435989] pstate: 40000085 (nZcv daIf -PAN -UAO) [ 6.440802] pc : css_release+0x24/0x58 [ 6.444561] lr : regmap_read+0x40/0x78 [ 6.448316] sp : ffff800010513cc0 [ 6.451636] x29: ffff800010513cc0 x28: ffff002055873040 [ 6.456963] x27: 0000000000000000 x26: 0000000000000000 [ 6.462289] x25: 0000000000000000 x24: 0000000000000000 [ 6.467617] x23: 0000000000000000 x22: 0000000000000080 [ 6.472944] x21: ffff800010513d44 x20: 0000000000000080 [ 6.478270] x19: 0000000000000000 x18: 0000000000000000 [ 6.483596] x17: 0000000000000000 x16: 0000000000000000 [ 6.488921] x15: 0000000000000000 x14: 0000000000000000 [ 6.494247] x13: 0000000000000000 x12: 0000000000000000 [ 6.499573] x11: 0000000000000000 x10: 0000000000000000 [ 6.504899] x9 : 0000000000000000 x8 : 0000000000000000 [ 6.510225] x7 : 0000000000000000 x6 : ffff800010513cf0 [ 6.515550] x5 : 0000000000000000 x4 : 0000000fffffffe0 [ 6.520876] x3 : 0000000000000088 x2 : ffff800010513d44 [ 6.526202] x1 : ffffcada668ea000 x0 : ffffcada64d8b0c0 [ 6.531528] Call trace: [ 6.533977] css_release+0x24/0x58 [ 6.537385] regmap_read+0x40/0x78 [ 6.540795] __ocelot_read_ix+0x6c/0xa0 [ 6.544641] ocelot_ptp_gettime64+0x4c/0x110 [ 6.548921] ptp_clock_gettime+0x4c/0x58 [ 6.552853] pc_clock_gettime+0x5c/0xa8 [ 6.556699] __arm64_sys_clock_gettime+0x68/0xc8 [ 6.561331] el0_svc_common.constprop.2+0x7c/0x178 [ 6.566133] el0_svc_handler+0x34/0xa0 [ 6.569891] el0_sync_handler+0x114/0x1d0 [ 6.573908] el0_sync+0x140/0x180 [ 6.577232] Code: d503201f b00119a1 91022263 b27b7be4 (f9004663) [ 6.583349] ---[ end trace d196b9b14cdae2da ]--- [ 6.587977] Kernel panic - not syncing: Fatal exception [ 6.593216] SMP: stopping secondary CPUs [ 6.597151] Kernel Offset: 0x4ada54400000 from 0xffff800010000000 [ 6.603261] PHYS_OFFSET: 0xffffd0a7c0000000 [ 6.607454] CPU features: 0x10002,21806008 [ 6.611558] Memory Limit: none And now that ocelot->ptp_clock is checked at exit, prevent a potential error where ptp_clock_register returned a pointer-encoded error, which we are keeping in the ocelot private data structure. So now, ocelot->ptp_clock is now either NULL or a valid pointer. Fixes: 4e3b0468 ("net: mscc: PTP Hardware Clock (PHC) support") Cc: Antoine Tenart <antoine.tenart@bootlin.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Shannon Nelson authored
[ Upstream commit ffac2027 ] If the user has specified their own RSS hash key, don't lose it across queue resets such as DOWN/UP, MTU change, and number of channels change. This is fixed by moving the key initialization to a little earlier in the lif creation. Also, let's clean up the RSS config a little better on the way down by setting it all to 0. Fixes: aa319881 ("ionic: Add RSS support") Signed-off-by:
Shannon Nelson <snelson@pensando.io> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Jonathan Lemon authored
[ Upstream commit 86c76c09 ] A lockdep splat was observed when trying to remove an xdp memory model from the table since the mutex was obtained when trying to remove the entry, but not before the table walk started: Fix the splat by obtaining the lock before starting the table walk. Fixes: c3f812ce ("page_pool: do not release pool until inflight == 0.") Reported-by:
Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by:
Jonathan Lemon <jonathan.lemon@gmail.com> Tested-by:
Grygorii Strashko <grygorii.strashko@ti.com> Acked-by:
Jesper Dangaard Brouer <brouer@redhat.com> Acked-by:
Ilias Apalodimas <ilias.apalodimas@linaro.org> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Jonathan Lemon authored
[ Upstream commit c3f812ce ] The page pool keeps track of the number of pages in flight, and it isn't safe to remove the pool until all pages are returned. Disallow removing the pool until all pages are back, so the pool is always available for page producers. Make the page pool responsible for its own delayed destruction instead of relying on XDP, so the page pool can be used without the xdp memory model. When all pages are returned, free the pool and notify xdp if the pool is registered with the xdp memory system. Have the callback perform a table walk since some drivers (cpsw) may share the pool among multiple xdp_rxq_info. Note that the increment of pages_state_release_cnt may result in inflight == 0, resulting in the pool being released. Fixes: d956a048 ("xdp: force mem allocator removal and periodic warning") Signed-off-by:
Jonathan Lemon <jonathan.lemon@gmail.com> Acked-by:
Jesper Dangaard Brouer <brouer@redhat.com> Acked-by:
Ilias Apalodimas <ilias.apalodimas@linaro.org> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Aya Levin authored
[ Upstream commit 3d7cadae ] When setting speed to 100G via ethtool (AN is set to off), only 25G*4 is configured while the user, who has an advanced HW which supports extended PTYS, expects also 50G*2 to be configured. With this patch, when extended PTYS mode is available, configure PTYS via extended fields. Fixes: 4b95840a ("net/mlx5e: Fix matching of speed to PRM link modes") Signed-off-by:
Aya Levin <ayal@mellanox.com> Reviewed-by:
Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by:
Saeed Mahameed <saeedm@mellanox.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Aya Levin authored
[ Upstream commit 6d485e5e ] Add a missing value in translation of PTYS ext_eth_proto_oper to its corresponding speed. When ext_eth_proto_oper bit 10 is set, ethtool shows unknown speed. With this fix, ethtool shows speed is 100G as expected. Fixes: a08b4ed1 ("net/mlx5: Add support to ext_* fields introduced in Port Type and Speed register") Signed-off-by:
Aya Levin <ayal@mellanox.com> Reviewed-by:
Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by:
Saeed Mahameed <saeedm@mellanox.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Roi Dayan authored
[ Upstream commit a23dae79 ] Flows are allocated with kzalloc() so free with kfree(). Fixes: 04de7dda ("net/mlx5e: Infrastructure for duplicated offloading of TC flows") Signed-off-by:
Roi Dayan <roid@mellanox.com> Reviewed-by:
Eli Britstein <elibr@mellanox.com> Signed-off-by:
Saeed Mahameed <saeedm@mellanox.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Eran Ben Elisha authored
[ Upstream commit c431f859 ] SFF 8472 eeprom length is 512 bytes. Fix module info return value to support 512 bytes read. Fixes: ace329f4 ("net/mlx5e: ethtool, Remove unsupported SFP EEPROM high pages query") Signed-off-by:
Eran Ben Elisha <eranbe@mellanox.com> Reviewed-by:
Aya Levin <ayal@mellanox.com> Signed-off-by:
Saeed Mahameed <saeedm@mellanox.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Aaron Conole authored
[ Upstream commit 95219afb ] The act_ct TC module shares a common conntrack and NAT infrastructure exposed via netfilter. It's possible that a packet needs both SNAT and DNAT manipulation, due to e.g. tuple collision. Netfilter can support this because it runs through the NAT table twice - once on ingress and again after egress. The act_ct action doesn't have such capability. Like netfilter hook infrastructure, we should run through NAT twice to keep the symmetry. Fixes: b57dc7c1 ("net/sched: Introduce action ct") Signed-off-by:
Aaron Conole <aconole@redhat.com> Acked-by:
Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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