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2019-02-27scsi: core: replace GFP_ATOMIC with GFP_KERNEL in scsi_scan.cBenjamin Block
We had a test-report where, under memory pressure, adding LUNs to the systems would fail (the tests add LUNs strictly in sequence): [ 5525.853432] scsi 0:0:1:1088045124: Direct-Access IBM 2107900 .148 PQ: 0 ANSI: 5 [ 5525.853826] scsi 0:0:1:1088045124: alua: supports implicit TPGS [ 5525.853830] scsi 0:0:1:1088045124: alua: device naa.6005076303ffd32700000000000044da port group 0 rel port 43 [ 5525.853931] sd 0:0:1:1088045124: Attached scsi generic sg10 type 0 [ 5525.854075] sd 0:0:1:1088045124: [sdk] Disabling DIF Type 1 protection [ 5525.855495] sd 0:0:1:1088045124: [sdk] 2097152 512-byte logical blocks: (1.07 GB/1.00 GiB) [ 5525.855606] sd 0:0:1:1088045124: [sdk] Write Protect is off [ 5525.855609] sd 0:0:1:1088045124: [sdk] Mode Sense: ed 00 00 08 [ 5525.855795] sd 0:0:1:1088045124: [sdk] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 5525.857838] sdk: sdk1 [ 5525.859468] sd 0:0:1:1088045124: [sdk] Attached SCSI disk [ 5525.865073] sd 0:0:1:1088045124: alua: transition timeout set to 60 seconds [ 5525.865078] sd 0:0:1:1088045124: alua: port group 00 state A preferred supports tolusnA [ 5526.015070] sd 0:0:1:1088045124: alua: port group 00 state A preferred supports tolusnA [ 5526.015213] sd 0:0:1:1088045124: alua: port group 00 state A preferred supports tolusnA [ 5526.587439] scsi_alloc_sdev: Allocation failure during SCSI scanning, some SCSI devices might not be configured [ 5526.588562] scsi_alloc_sdev: Allocation failure during SCSI scanning, some SCSI devices might not be configured Looking at the code of scsi_alloc_sdev(), and all the calling contexts, there seems to be no reason to use GFP_ATMOIC here. All the different call-contexts use a mutex at some point, and nothing in between that requires no sleeping, as far as I could see. Additionally, the code that later allocates the block queue for the device (scsi_mq_alloc_queue()) already uses GFP_KERNEL. There are similar allocations in two other functions: scsi_probe_and_add_lun(), and scsi_add_lun(),; that can also be done with GFP_KERNEL. Here is the contexts for the three functions so far: scsi_alloc_sdev() scsi_probe_and_add_lun() scsi_sequential_lun_scan() __scsi_scan_target() scsi_scan_target() mutex_lock() scsi_scan_channel() scsi_scan_host_selected() mutex_lock() scsi_report_lun_scan() __scsi_scan_target() ... __scsi_add_device() mutex_lock() __scsi_scan_target() ... scsi_report_lun_scan() ... scsi_get_host_dev() mutex_lock() scsi_probe_and_add_lun() ... scsi_add_lun() scsi_probe_and_add_lun() ... So replace all these, and give them a bit of a better chance to succeed, with more chances of reclaim. Signed-off-by: Benjamin Block <bblock@linux.ibm.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-27scsi: mpt3sas: Add missing breaks in switch statementsGustavo A. R. Silva
Fix the following warnings by adding the proper missing breaks: drivers/scsi/mpt3sas/mpt3sas_base.c: In function _base_display_OEMs_branding : drivers/scsi/mpt3sas/mpt3sas_base.c:3548:4: warning: this statement may fall through [-Wimplicit-fallthrough=] switch (ioc->pdev->subsystem_device) { ^~~~~~ drivers/scsi/mpt3sas/mpt3sas_base.c:3566:3: note: here case MPI2_MFGPAGE_DEVID_SAS2308_2: ^~~~ drivers/scsi/mpt3sas/mpt3sas_base.c:3567:4: warning: this statement may fall through [-Wimplicit-fallthrough=] switch (ioc->pdev->subsystem_device) { ^~~~~~ drivers/scsi/mpt3sas/mpt3sas_base.c:3601:3: note: here case MPI25_MFGPAGE_DEVID_SAS3008: ^~~~ drivers/scsi/mpt3sas/mpt3sas_base.c:3735:4: warning: this statement may fall through [-Wimplicit-fallthrough=] switch (ioc->pdev->subsystem_device) { ^~~~~~ drivers/scsi/mpt3sas/mpt3sas_base.c:3745:3: note: here case MPI2_MFGPAGE_DEVID_SAS2308_2: ^~~~ drivers/scsi/mpt3sas/mpt3sas_base.c:3746:4: warning: this statement may fall through [-Wimplicit-fallthrough=] switch (ioc->pdev->subsystem_device) { ^~~~~~ drivers/scsi/mpt3sas/mpt3sas_base.c:3768:3: note: here default: ^~~~~~~ Warning level 3 was used: -Wimplicit-fallthrough=3 This patch is part of the ongoing efforts to enable -Wimplicit-fallthrough. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-27scsi: aacraid: Fix missing break in switch statementGustavo A. R. Silva
Add missing break statement and fix identation issue. This bug was found thanks to the ongoing efforts to enable -Wimplicit-fallthrough. Fixes: 9cb62fa24e0d ("aacraid: Log firmware AIF messages") Cc: stable@vger.kernel.org Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-27scsi: kill command serial numberHannes Reinecke
No users left, kill it. Signed-off-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-27scsi: csiostor: drop serial_number usageHannes Reinecke
Use request tag instead of the serial number when printing out logging messages. Signed-off-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-27scsi: mvumi: use request tag instead of serial_numberHannes Reinecke
Use the request tag for logging instead of the scsi command serial number. Signed-off-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-27scsi: dpt_i2o: remove serial number usageHannes Reinecke
Drop references to scsi_cmnd->serial_number. Signed-off-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-27scsi: st: osst: Remove negative constant left-shiftsIustin Pop
Negative constant left-shift is undefined behaviour in the C standard, and as such newer versions of clang (at least) warn against it. GCC supports it for a long time, but it would be better to remove it and rely on defined behaviour. My understanding is "~(-1 << N)" in 2's complement is intended to generate a bit pattern of zeroes ending with N '1' bits. The same can be achieved by "(1 << N) - 1" in a well-defined way, so switch to it to remove the warning. Tested: building a kernel with generic SCSI tape, and checking basic operations (mt status, mt eject) on a real LTO unit. Cannot test the osst driver. Signed-off-by: Iustin Pop <iustin@k1024.org> Reviewed-by: Lee Duncan <lduncan@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-27mmc: cqhci: Fix a tiny potential memory leak on error conditionAlamy Liu
Free up the allocated memory in the case of error return The value of mmc_host->cqe_enabled stays 'false'. Thus, cqhci_disable (mmc_cqe_ops->cqe_disable) won't be called to free the memory. Also, cqhci_disable() seems to be designed to disable and free all resources, not suitable to handle this corner case. Fixes: a4080225f51d ("mmc: cqhci: support for command queue enabled host") Signed-off-by: Alamy Liu <alamy.liu@gmail.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Cc: stable@vger.kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-02-27mmc: cqhci: fix space allocated for transfer descriptorAlamy Liu
There is not enough space being allocated when DCMD is disabled. CQE_DCMD is not necessary to be enabled when CQE is enabled. (Software could halt CQE to send command) In the case that CQE_DCMD is not enabled, it still needs to allocate space for data transfer. For instance: CQE_DCMD is enabled: 31 slots space (one slot used by DCMD) CQE_DCMD is disabled: 32 slots space Fixes: a4080225f51d ("mmc: cqhci: support for command queue enabled host") Signed-off-by: Alamy Liu <alamy.liu@gmail.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Cc: stable@vger.kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-02-27scsi: ufs-bsg: Allow reading descriptorsAvri Altman
Add this functionality, placing the descriptor being read in the actual data buffer in the bio. That is, for both read and write descriptors query upiu, we are using the job's request_payload. This in turn, is mapped back in user land to the applicable sg_io_v4 xferp: dout_xferp for write descriptor, and din_xferp for read descriptor. Signed-off-by: Avri Altman <avri.altman@wdc.com> Reviewed-by: Evan Green <evgreen@chromium.org> Reviewed-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-27scsi: ufs: Allow reading descriptor via raw upiuAvri Altman
Allow to read descriptors via raw upiu. This in fact was forbidden just as a precaution, as ufs-bsg actually enforces which functionality is supported. Signed-off-by: Avri Altman <avri.altman@wdc.com> Reviewed-by: Evan Green <evgreen@chromium.org> Reviewed-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-27scsi: ufs-bsg: Change the calling convention for write descriptorAvri Altman
When we had a write descriptor query upiu, we appended the descriptor right after the bsg request. This was fine as the bsg driver allows to allocate whatever buffer we needed in its job request. Still, the proper way to deliver payload, however small (we only write config descriptors of 144 bytes), is by using the job request payload data buffer. So change this ABI now, while ufs-bsg is still new, and nobody is actually using it. Signed-off-by: Avri Altman <avri.altman@wdc.com> Reviewed-by: Evan Green <evgreen@chromium.org> Reviewed-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-27scsi: ufs: Remove unused device quirksMarc Gonzalez
The UFSHC driver defines a few quirks that are not used anywhere: UFS_DEVICE_QUIRK_BROKEN_LCC UFS_DEVICE_NO_VCCQ UFS_DEVICE_QUIRK_NO_LINK_OFF UFS_DEVICE_NO_FASTAUTO Let's remove them. Acked-by: Avri Altman <avri.altman@wdc.com> Acked-by: Alim Akhtar <alim.akhtar@samsung.com> Reviewed-by: Evan Green <evgreen@chromium.org> Signed-off-by: Marc Gonzalez <marc.w.gonzalez@free.fr> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-27Revert "scsi: ufs: disable vccq if it's not needed by UFS device"Marc Gonzalez
This reverts commit 60f0187031c05e04cbadffb62f557d0ff3564490. There was one conflict in drivers/scsi/ufs/ufshcd.c <<<<<<< HEAD /* Init check for device descriptor sizes */ ufshcd_init_desc_sizes(hba); ret = ufs_get_device_desc(hba, &card); if (ret) { dev_err(hba->dev, "%s: Failed getting device info. err = %d\n", __func__, ret); goto out; } ufs_fixup_device_setup(hba, &card); ufshcd_tune_unipro_params(hba); ret = ufshcd_set_vccq_rail_unused(hba, (hba->dev_quirks & UFS_DEVICE_NO_VCCQ) ? true : false); if (ret) goto out; ======= ufs_advertise_fixup_device(hba); >>>>>>> parent of 60f0187031c0... scsi: ufs: disable vccq if it's not needed by UFS device Resolution: keep HEAD, and delete the ufshcd_set_vccq_rail_unused() call and corresponding error-handling code. Clean up loose ends in a follow-up patch. 60f0187031c0 introduced a small power optimization: ignore the vccq load specified in the UFSHC DT node when said host controller is connected to specific Flash chips (currently, Samsung and Hynix). Unfortunately, this optimization breaks UFS on systems where vccq powers not only the Flash chip, but the host controller as well, such as APQ8098 MEDIABOX or MTP8998: [ 3.929877] ufshcd-qcom 1da4000.ufshc: ufshcd_query_attr: opcode 0x04 for idn 13 failed, index 0, err = -11 [ 5.433815] ufshcd-qcom 1da4000.ufshc: ufshcd_query_attr: opcode 0x04 for idn 13 failed, index 0, err = -11 [ 6.937771] ufshcd-qcom 1da4000.ufshc: ufshcd_query_attr: opcode 0x04 for idn 13 failed, index 0, err = -11 [ 6.937866] ufshcd-qcom 1da4000.ufshc: ufshcd_query_attr_retry: query attribute, idn 13, failed with error -11 after 3 retires [ 6.946412] ufshcd-qcom 1da4000.ufshc: ufshcd_disable_auto_bkops: failed to enable exception event -11 [ 6.957972] ufshcd-qcom 1da4000.ufshc: dme-peer-get: attr-id 0x1587 failed 3 retries [ 6.967181] ufshcd-qcom 1da4000.ufshc: dme-peer-get: attr-id 0x1586 failed 3 retries [ 6.975025] ufshcd-qcom 1da4000.ufshc: ufshcd_get_max_pwr_mode: invalid max pwm tx gear read = 0 [ 6.982755] ufshcd-qcom 1da4000.ufshc: ufshcd_probe_hba: Failed getting max supported power mode [ 8.505770] ufshcd-qcom 1da4000.ufshc: ufshcd_query_flag: Sending flag query for idn 3 failed, err = -11 [ 10.009807] ufshcd-qcom 1da4000.ufshc: ufshcd_query_flag: Sending flag query for idn 3 failed, err = -11 [ 11.513766] ufshcd-qcom 1da4000.ufshc: ufshcd_query_flag: Sending flag query for idn 3 failed, err = -11 [ 11.513861] ufshcd-qcom 1da4000.ufshc: ufshcd_query_flag_retry: query attribute, opcode 5, idn 3, failed with error -11 after 3 retires [ 13.049807] ufshcd-qcom 1da4000.ufshc: __ufshcd_query_descriptor: opcode 0x01 for idn 8 failed, index 0, err = -11 [ 14.553768] ufshcd-qcom 1da4000.ufshc: __ufshcd_query_descriptor: opcode 0x01 for idn 8 failed, index 0, err = -11 [ 16.057767] ufshcd-qcom 1da4000.ufshc: __ufshcd_query_descriptor: opcode 0x01 for idn 8 failed, index 0, err = -11 [ 16.057872] ufshcd-qcom 1da4000.ufshc: ufshcd_read_desc_param: Failed reading descriptor. desc_id 8, desc_index 0, param_offset 0, ret -11 [ 16.067109] ufshcd-qcom 1da4000.ufshc: ufshcd_init_icc_levels: Failed reading power descriptor.len = 98 ret = -11 [ 37.073787] ufshcd-qcom 1da4000.ufshc: link startup failed 1 In my opinion, the rationale for the original patch is questionable. If neither the UFSHC, nor the Flash chip, require any load from vccq, then that power rail should simply not be specified at all in the DT. Working around that fact in the driver is detrimental, as evidenced by the failure to initialize the host controller on MSM8998. Acked-by: Avri Altman <avri.altman@wdc.com> Acked-by: Alim Akhtar <alim.akhtar@samsung.com> Signed-off-by: Marc Gonzalez <marc.w.gonzalez@free.fr> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-27scsi: core: Avoid that system resume triggers a kernel warningBart Van Assche
scsi_device_quiesce() and scsi_device_resume() are called during system-wide suspend and resume. scsi_device_quiesce() only succeeds for SCSI devices that are in one of the RUNNING, OFFLINE or TRANSPORT_OFFLINE states (see also scsi_set_device_state()). This patch avoids that the following warning is triggered when resuming a system for which quiescing a SCSI device failed: WARNING: CPU: 2 PID: 11303 at drivers/scsi/scsi_lib.c:2600 scsi_device_resume+0x4f/0x58 CPU: 2 PID: 11303 Comm: kworker/u8:70 Not tainted 5.0.0-rc1+ #50 Hardware name: LENOVO 80E3/Lancer 5B2, BIOS A2CN45WW(V2.13) 08/04/2016 Workqueue: events_unbound async_run_entry_fn Call Trace: scsi_dev_type_resume+0x2e/0x60 async_run_entry_fn+0x32/0xd8 process_one_work+0x1f4/0x420 worker_thread+0x28/0x3c0 kthread+0x118/0x130 ret_from_fork+0x22/0x40 Cc: Przemek Socha <soprwa@gmail.com> Reported-by: Przemek Socha <soprwa@gmail.com> Fixes: 3a0a529971ec ("block, scsi: Make SCSI quiesce and resume work reliably") # v4.15 Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-27ACPI / bus: Respect PRP0001 when retrieving device match dataAndy Shevchenko
In the PRP0001 case, the compatible string may have additional data affiliated with the device. When we call device_get_match_data() on such device, we will get nothing since currently acpi_device_get_match_data() doesn't respect PRP0001. To fix the above, try acpi_of_match_device() if there is no ACPI table in the driver. Anyway, note that the device is expected to get its own proper ACPI ID. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-02-27mmc: core: Fix NULL ptr crash from mmc_should_fail_requestRitesh Harjani
In case of CQHCI, mrq->cmd may be NULL for data requests (non DCMD). In such case mmc_should_fail_request is directly dereferencing mrq->cmd while cmd is NULL. Fix this by checking for mrq->cmd pointer. Fixes: 72a5af554df8 ("mmc: core: Add support for handling CQE requests") Signed-off-by: Ritesh Harjani <riteshh@codeaurora.org> Cc: stable@vger.kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-02-27Bluetooth: btusb: add QCA6174A compatible propertiesBrian Norris
We may need to specify a GPIO wake pin for this device, so add a compatible property for it. There are at least to USB PID/VID variations of this chip: one with a Lite-On ID and one with an Atheros ID. Signed-off-by: Brian Norris <briannorris@chromium.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2019-02-27Bluetooth: hci_qca: Use msleep() instead of open coding itMatthias Kaehlcke
Call msleep() in qca_set_baudrate() instead of reimplementing it. Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2019-02-27Bluetooth: hci_qca: Add delay after power-off pulseMatthias Kaehlcke
During initialization the power-on pulse is currently sent inmediately after the prior power-off pulse. With this initialization often fails at boot time: [ 15.205224] Bluetooth: hci0: setting up wcn3990 [ 17.341062] Bluetooth: hci0: command 0xfc00 tx timeout [ 22.101453] ERROR: Bluetooth initialization failed [ 25.337740] Bluetooth: hci0: Reading QCA version information failed (-110) After a power-off pulse wait 10ms to give the controller time to power off. Remove the previous short settling delay, it isn't needed anymore. Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Balakrishna Godavarthi <bgodavar@codeaurora.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2019-02-27Bluetooth: hci_qca: Move boot delay to qca_send_power_pulse()Matthias Kaehlcke
After sending a power on pulse the driver has a delay of 100ms to allow the host controller to boot. Move the delay into qca_send_power_pulse(), since it is directly related with the power-on pulse. Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Balakrishna Godavarthi <bgodavar@codeaurora.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2019-02-27Bluetooth: hci_qca: Pass boolean 'on/off' to qca_send_power_pulse()Matthias Kaehlcke
There are only two types of power pulses 'on' or 'off', pass a boolean instead of the power pulse 'command'. Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Balakrishna Godavarthi <bgodavar@codeaurora.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2019-02-26hv_netvsc: Fix IP header checksum for coalesced packetsHaiyang Zhang
Incoming packets may have IP header checksum verified by the host. They may not have IP header checksum computed after coalescing. This patch re-compute the checksum when necessary, otherwise the packets may be dropped, because Linux network stack always checks it. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-26dpaa2-eth: configure the cache stashing amount on a queueIoana Ciornei
Configure the amount of 64 bytes of frame, annotation and context data that will be cache stashed for a specific frame queue. Since the frame context is not used, configure that only 64 bytes of frame data and 64 bytes of annotation will be stashed. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Li Yang <leoyang.li@nxp.com>
2019-02-26soc: fsl: dpio: configure cache stashing destinationIoana Ciornei
Depending on the SoC version and the CPU id, configure the cache stashing destination for a specific dpio. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
2019-02-26soc: fsl: dpio: enable frame data cache stashing per software portalIoana Ciornei
Enable cache stashing on the frame data dequeued using this software portal. Also, enable dropping a stash request transaction when the target request queue is almost full. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
2019-02-26clk: mediatek: correct cpu clock name for MT8173 SoCSeiya Wang
Correct cpu clock name from ca57 to ca72 since MT8173 does use cortex-a72. Signed-off-by: Seiya Wang <seiya.wang@mediatek.com> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-02-26clk: imx: Refactor entire sccg pll clkAbel Vesa
Make the entire combination of plls to be one single clock. The parents used for bypasses are specified each as an index in the parents list. The determine_rate does a lookup throughout all the possible combinations for all the divs and returns the best possible 'setup' which in turn is used by set_rate later to set up all the divs and bypasses. Signed-off-by: Abel Vesa <abel.vesa@nxp.com> Tested-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-02-26clk: imx: scu: add cpu frequency scaling supportAnson Huang
On NXP's i.MX SoCs with system controller inside, CPU frequency scaling can ONLY be done by system controller firmware, and it can ONLY be requested from secure mode, so Linux kernel has to call ARM SMC to trap to ARM-Trusted-Firmware to request system controller firmware to do CPU frequency scaling. This patch adds i.MX system controller CPU frequency scaling support, it reuses cpufreq-dt driver and implement the CPU frequency scaling inside SCU clock driver. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-02-26clk: mediatek: Mark bus and DRAM related clocks as criticalJasper Mattsson
Currently, DRAM-related clocks are not marked with CLK_IS_CRITICAL for MT6797. This causes memory corruption when the system is booted without clk_ignore_unused. This patch marks MUX ddrphycfg_sel as well as gates infra_dramc_f26m and infra_dramc_b_f26m as CLK_IS_CRITICAL. Signed-off-by: Jasper Mattsson <jasu@njomotys.info> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-02-26clk: mediatek: Add flags to mtk_gateJasper Mattsson
This is required to mark gates as CLK_IS_CRITICAL. Signed-off-by: Jasper Mattsson <jasu@njomotys.info> Acked-by: Mars Cheng <mars.cheng@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-02-26clk: mediatek: Add MUX_FLAGS macroJasper Mattsson
This is required to mark outputs of certain MUXes as CLK_IS_CRITICAL. Signed-off-by: Jasper Mattsson <jasu@njomotys.info> Acked-by: Mars Cheng <mars.cheng@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-02-26soc: fsl: guts: make fsl_guts_get_svr() staticHoria Geantă
The export of fsl_guts_get_svr() is a left-over, it's currently used only internally and users needing SoC information should use the generic soc_device infrastructure. Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Acked-by: Yangbo Lu <yangbo.lu@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
2019-02-26clk: qcom: gcc-sdm845: Define parent of PCIe PIPE clocksBjorn Andersson
The PCIe PIPE clock in the GCC is fed by the PIPE clock coming from the PHY, describe this relationship. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-02-26clk: ingenic: Remove set but not used variable 'enable'YueHaibing
Fixes gcc '-Wunused-but-set-variable' warning: drivers/clk/ingenic/cgu.c: In function 'ingenic_pll_recalc_rate': drivers/clk/ingenic/cgu.c:86:15: warning: variable 'enable' set but not used [-Wunused-but-set-variable] It's not used after commit ab27eb4bc365 ("clk: ingenic: Add code to enable/disable PLLs") Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-02-26s390/cio: Use cpa range elsewhere within vfio-ccwEric Farman
Since we have a little function to see whether a channel program address falls within a range of CCWs, let's use it in the other places of code that make these checks. (Why isn't ccw_head fully removed? Well, because this way some longs lines don't have to be reflowed.) Signed-off-by: Eric Farman <farman@linux.ibm.com> Message-Id: <20190222183941.29596-3-farman@linux.ibm.com> Reviewed-by: Farhan Ali <alifm@linux.ibm.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2019-02-26s390/cio: Fix vfio-ccw handling of recursive TICsEric Farman
The routine ccwchain_calc_length() is tasked with looking at a channel program, seeing how many CCWs are chained together by the presence of the Chain-Command flag, and returning a count to the caller. Previously, it also considered a Transfer-in-Channel CCW as being an appropriate mechanism for chaining. The problem at the time was that the TIC CCW will almost certainly not go to the next CCW in memory (because the CC flag would be sufficient), and so advancing to the next 8 bytes will cause us to read potentially invalid memory. So that comparison was removed, and the target of the TIC is processed as a new chain. This is fine when a TIC goes to a new chain (consider a NOP+TIC to a channel program that is being redriven), but there is another scenario where this falls apart. A TIC can be used to "rewind" a channel program, for example to find a particular record on a disk with various orientation CCWs. In this case, we DO want to consider the memory after the TIC since the TIC will be skipped once the requested criteria is met. This is due to the Status Modifier presented by the device, though software doesn't need to operate on it beyond understanding the behavior change of how the channel program is executed. So to handle this, we will re-introduce the check for a TIC CCW but limit it by examining the target of the TIC. If the TIC doesn't go back into the current chain, then current behavior applies; we should stop counting CCWs and let the target of the TIC be handled as a new chain. But, if the TIC DOES go back into the current chain, then we need to keep looking at the memory after the TIC for when the channel breaks out of the TIC loop. We can't use tic_target_chain_exists() because the chain in question hasn't been built yet, so we will redefine that comparison with some small functions to make it more readable and to permit refactoring later. Fixes: 405d566f98ae ("vfio-ccw: Don't assume there are more ccws after a TIC") Signed-off-by: Eric Farman <farman@linux.ibm.com> Message-Id: <20190222183941.29596-2-farman@linux.ibm.com> Reviewed-by: Halil Pasic <pasic@linux.ibm.com> Reviewed-by: Farhan Ali <alifm@linux.ibm.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2019-02-26mlxsw: spectrum: remove set but not used variable 'autoneg_status'YueHaibing
Fixes gcc '-Wunused-but-set-variable' warning: drivers/net/ethernet/mellanox/mlxsw/spectrum.c: In function 'mlxsw_sp_port_get_link_ksettings': drivers/net/ethernet/mellanox/mlxsw/spectrum.c:3062:5: warning: variable 'autoneg_status' set but not used [-Wunused-but-set-variable] It's not used since commit 475b33cb66c9 ("mlxsw: spectrum: Remove unsupported eth_proto_lp_advertise field in PTYS") Signed-off-by: YueHaibing <yuehaibing@huawei.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-26vxlan: add extack support for create and changelinkRoopa Prabhu
This patch adds extack coverage in vxlan link create and changelink paths. Introduces a new helper vxlan_nl2flags to consolidate flag attribute validation. thanks to Johannes Berg for some tips to construct the generic vxlan flag extack strings. Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com> Reviewed-by: Petr Machata <petrm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-26nfp: remove ethtool flashing fallbackJakub Kicinski
Now that devlink fallback will be called reliably, we can remove the ethtool flashing code. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-26nfp: add .ndo_get_devlinkJakub Kicinski
Support getting devlink instance from a new NDO. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-26net: devlink: turn devlink into a built-inJakub Kicinski
Being able to build devlink as a module causes growing pains. First all drivers had to add a meta dependency to make sure they are not built in when devlink is built as a module. Now we are struggling to invoke ethtool compat code reliably. Make devlink code built-in, users can still not build it at all but the dynamically loadable module option is removed. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-26regulator: 88pm8607: Remove unused fields from struct pm8607_regulator_infoAxel Lin
The *i2c and *i2c_8606 are no longer used since this driver was converted to use regmap helpers. The *chip and *regulator are not really required. So remove these unused fields. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26regulator: 88pm8607: Simplify pm8607_list_voltage implementationAxel Lin
Set volt_table filed then we can use regulator_list_voltage_table. Since we have volt_table setting, now we can remove vol_table from struct pm8607_regulator_info. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26regulator: cpcap: Constify omap4_regulators and xoom_regulatorsAxel Lin
They should never change, make them const. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26regulator: cpcap: Remove unused vsel_shift from struct cpcap_regulatorAxel Lin
This driver uses regulator_get/set_voltage_sel_regmap so it does not use vsel_shift. Actually, vsel_shift can be calculated by vsel_mask setting. Signed-off-by: Axel Lin <axel.lin@ingics.com> Tested-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26Merge branch 'asoc-5.1' into asoc-nextMark Brown
2019-02-26EDAC/altera: Add separate SDRAM EDAC configThor Thayer
The CONFIG_ALTERA_EDAC Kconfig symbol always enables the SDRAM EDAC functionality. On the newer architectures, however, there are cases where the peripheral EDAC functionality is enabled but SDRAM needs to be disabled. Move SDRAM functions so they can be contained inside the conditional CONFIG. Create new CONFIG option just for SDRAM. [ bp: Massage commit message. ] Signed-off-by: Thor Thayer <thor.thayer@linux.intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: James Morse <james.morse@arm.com> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: dinguyen@kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-edac <linux-edac@vger.kernel.org> Cc: linux@armlinux.org.uk Link: https://lkml.kernel.org/r/1551121006-4657-2-git-send-email-thor.thayer@linux.intel.com
2019-02-26scsi: megaraid_sas: Remove a bunch of set but not used variablesYueHaibing
Fixes gcc '-Wunused-but-set-variable' warning: drivers/scsi/megaraid/megaraid_sas_fusion.c: In function 'wait_and_poll': drivers/scsi/megaraid/megaraid_sas_fusion.c:936:25: warning: variable 'fusion' set but not used [-Wunused-but-set-variable] drivers/scsi/megaraid/megaraid_sas_fusion.c: In function 'megasas_sync_map_info': drivers/scsi/megaraid/megaraid_sas_fusion.c:1329:6: warning: variable 'size_sync_info' set but not used [-Wunused-but-set-variable] drivers/scsi/megaraid/megaraid_sas_fusion.c: In function 'megasas_init_adapter_fusion': drivers/scsi/megaraid/megaraid_sas_fusion.c:1639:39: warning: variable 'reg_set' set but not used [-Wunused-but-set-variable] drivers/scsi/megaraid/megaraid_sas_fusion.c: In function 'megasas_is_prp_possible': drivers/scsi/megaraid/megaraid_sas_fusion.c:1925:25: warning: variable 'fusion' set but not used [-Wunused-but-set-variable] drivers/scsi/megaraid/megaraid_sas_fusion.c: In function 'megasas_make_prp_nvme': drivers/scsi/megaraid/megaraid_sas_fusion.c:2047:25: warning: variable 'fusion' set but not used [-Wunused-but-set-variable] drivers/scsi/megaraid/megaraid_sas_fusion.c: In function 'megasas_build_ldio_fusion': drivers/scsi/megaraid/megaraid_sas_fusion.c:2620:42: warning: variable 'req_desc' set but not used [-Wunused-but-set-variable] drivers/scsi/megaraid/megaraid_sas_fusion.c: In function 'megasas_build_and_issue_cmd_fusion': drivers/scsi/megaraid/megaraid_sas_fusion.c:3245:25: warning: variable 'fusion' set but not used [-Wunused-but-set-variable] drivers/scsi/megaraid/megaraid_sas_fusion.c: In function 'megasas_task_abort_fusion': drivers/scsi/megaraid/megaraid_sas_fusion.c:4398:25: warning: variable 'fusion' set but not used [-Wunused-but-set-variable] drivers/scsi/megaraid/megaraid_sas_fusion.c: In function 'megasas_reset_target_fusion': drivers/scsi/megaraid/megaraid_sas_fusion.c:4484:25: warning: variable 'fusion' set but not used [-Wunused-but-set-variable] They're not used anymore and can be removed. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Acked-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>