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2019-03-05irqchip/imx-irqsteer: Fix of_property_read_u32() error handlingArnd Bergmann1-2/+6
gcc points out that irqs_num is not initialized when of_property_read_u32() is an empty stub function: Included from drivers/irqchip/irq-imx-irqsteer.c:7: drivers/irqchip/irq-imx-irqsteer.c: In function 'imx_irqsteer_probe': include/uapi/linux/kernel.h:13:49: error: 'irqs_num' may be used uninitialized in this function [-Werror=maybe-uninitialized] The same can actually happen with CONFIG_OF=y as well, though we don't get a warning then. Add error checking here that lets the code deal with missing or invalid properties as well as avoid the warning. Fixes: 28528fca4908 ("irqchip/imx-irqsteer: Add multi output interrupts support") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-02-22irqchip/imx-irqsteer: Add multi output interrupts supportAisheng Dong1-20/+68
One irqsteer channel can support up to 8 output interrupts. Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Shawn Guo <shawnguo@kernel.org> Reviewed-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-02-22irqchip/imx-irqsteer: Change to use reg_num instead of irq_groupAisheng Dong1-16/+19
One group can manage 64 interrupts by using two registers (e.g. STATUS/SET). However, the integrated irqsteer may support only 32 interrupts which needs only one register in a group. But the current driver assume there's a mininum of two registers in a group which result in a wrong register map for 32 interrupts per channel irqsteer. Let's use the reg_num caculated by interrupts per channel instead of irq_group to cover this case. Cc: Rob Herring <robh+dt@kernel.org> Cc: Shawn Guo <shawnguo@kernel.org> Reviewed-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-02-21irqchip/brcmstb-l2: Use _irqsave locking variants in non-interrupt codeDoug Berger1-4/+6
Using the irq_gc_lock/irq_gc_unlock functions in the suspend and resume functions creates the opportunity for a deadlock during suspend, resume, and shutdown. Using the irq_gc_lock_irqsave/ irq_gc_unlock_irqrestore variants prevents this possible deadlock. Cc: stable@vger.kernel.org Fixes: 7f646e92766e2 ("irqchip: brcmstb-l2: Add Broadcom Set Top Box Level-2 interrupt controller") Signed-off-by: Doug Berger <opendmb@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> [maz: tidied up $SUBJECT] Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-02-21irqchip/gicv3-its: Use NUMA aware memory allocation for ITS tablesShanker Donthineni1-10/+16
The NUMA node information is visible to ITS driver but not being used other than handling hardware errata. ITS/GICR hardware accesses to the local NUMA node is usually quicker than the remote NUMA node. How slow the remote NUMA accesses are depends on the implementation details. This patch allocates memory for ITS management tables and command queue from the corresponding NUMA node using the appropriate NUMA aware functions. This change improves the performance of the ITS tables read latency on systems where it has more than one ITS block, and with the slower inter node accesses. Apache Web server benchmarking using ab tool on a HiSilicon D06 board with multiple numa mem nodes shows Time per request and Transfer rate improvements of ~3.6% with this patch. Signed-off-by: Shanker Donthineni <shankerd@codeaurora.org> Signed-off-by: Hanjun Guo <guohanjun@huawei.com> Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com> Reviewed-by: Ganapatrao Kulkarni <gkulkarni@marvell.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-02-21irqchip/sifive-plic: Implement irq_set_affinity() for SMP hostAnup Patel1-6/+39
Currently on SMP host, all CPUs take external interrupts routed via PLIC. All CPUs will try to claim a given external interrupt but only one of them will succeed while other CPUs would simply resume whatever they were doing before. This means if we have N CPUs then for every external interrupt N-1 CPUs will always fail to claim it and waste their CPU time. Instead of above, external interrupts should be taken by only one CPU and we should have provision to explicitly specify IRQ affinity from kernel-space or user-space. This patch provides irq_set_affinity() implementation for PLIC driver. It also updates irq_enable() such that PLIC interrupts are only enabled for one of CPUs specified in IRQ affinity mask. With this patch in-place, we can change IRQ affinity at any-time from user-space using procfs. Example: / # cat /proc/interrupts CPU0 CPU1 CPU2 CPU3 8: 44 0 0 0 SiFive PLIC 8 virtio0 10: 48 0 0 0 SiFive PLIC 10 ttyS0 IPI0: 55 663 58 363 Rescheduling interrupts IPI1: 0 1 3 16 Function call interrupts / # / # / # echo 4 > /proc/irq/10/smp_affinity / # / # cat /proc/interrupts CPU0 CPU1 CPU2 CPU3 8: 45 0 0 0 SiFive PLIC 8 virtio0 10: 160 0 17 0 SiFive PLIC 10 ttyS0 IPI0: 68 693 77 410 Rescheduling interrupts IPI1: 0 2 3 16 Function call interrupts Signed-off-by: Anup Patel <anup@brainfault.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-02-21irqchip/sifive-plic: Differentiate between PLIC handler and contextAnup Patel1-8/+8
We explicitly differentiate between PLIC handler and context because PLIC context is for given mode of HART whereas PLIC handler is per-CPU software construct meant for handling interrupts from a particular PLIC context. To achieve this differentiation, we rename "nr_handlers" to "nr_contexts" and "nr_mapped" to "nr_handlers" in plic_init(). Signed-off-by: Anup Patel <anup@brainfault.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-02-21irqchip/sifive-plic: Add warning in plic_init() if handler already presentAnup Patel1-0/+5
We have two enteries (one for M-mode and another for S-mode) in the interrupts-extended DT property of PLIC DT node for each HART. It is expected that firmware/bootloader will set M-mode HWIRQ line of each HART to 0xffffffff (i.e. -1) in interrupts-extended DT property because Linux runs in S-mode only. If firmware/bootloader is buggy then it will not correctly update interrupts-extended DT property which might result in a plic_handler configured twice. This patch adds a warning in plic_init() if a plic_handler is already marked present. This warning provides us a hint about incorrectly updated interrupts-extended DT property. Signed-off-by: Anup Patel <anup@brainfault.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-02-21irqchip/sifive-plic: Pre-compute context hart base and enable baseAnup Patel1-26/+21
This patch does following optimizations: 1. Pre-compute hart base for each context handler 2. Pre-compute enable base for each context handler 3. Have enable lock for each context handler instead of global plic_toggle_lock Signed-off-by: Anup Patel <anup@brainfault.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-02-14irqchip/irq-sifive-plic: Check and continue in case of an invalid cpuid.Atish Patra1-0/+5
riscv_hartid_to_cpuid can return invalid cpuid for a hart that is present in DT but was never brought up. Print the appropriate warning message and continue. Signed-off-by: Atish Patra <atish.patra@wdc.com> Reviewed-by: Anup Patel <anup@brainfault.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-02-14irqchip/i8259: Fix shutdown order by moving syscore_ops registrationAaro Koskinen1-8/+1
When using cpufreq on Loongson 2F MIPS platform, "poweroff" command gets frequently stuck in syscore_shutdown(). The reason is that i8259A_shutdown() gets called before cpufreq_suspend(), and if we have pending work then irq_work_sync() in cpufreq_dbs_governor_stop() gets stuck forever as we have all interrupts masked already. irq-i8259 is registering syscore_ops using device_initcall(), while cpufreq uses core_initcall(). Fix the shutdown order simply by registering the irq syscore_ops during the early IRQ init instead of using a separate initcall at later stage. Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-02-14irqchip: Add driver for Loongson-1 interrupt controllerJiaxun Yang3-0/+202
This controller appeared on Loongson-1 family MCUs including Loongson-1B and Loongson-1C. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-02-14irqchip/gic-v3-its: Avoid parsing _indirect_ twice for Device tableZenghui Yu1-0/+2
In current logic, its_parse_indirect_baser() will be invoked twice when allocating Device tables. Add a *break* to omit the unnecessary and annoying (might be ...) invoking. Fixes: 32bd44dc19de ("irqchip/gic-v3-its: Fix the incorrect parsing of VCPU table size") Cc: stable@vger.kernel.org Signed-off-by: Zenghui Yu <yuzenghui@huawei.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-01-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds34-93/+286
Pull networking fixes from David Miller: 1) Fix endless loop in nf_tables, from Phil Sutter. 2) Fix cross namespace ip6_gre tunnel hash list corruption, from Olivier Matz. 3) Don't be too strict in phy_start_aneg() otherwise we might not allow restarting auto negotiation. From Heiner Kallweit. 4) Fix various KMSAN uninitialized value cases in tipc, from Ying Xue. 5) Memory leak in act_tunnel_key, from Davide Caratti. 6) Handle chip errata of mv88e6390 PHY, from Andrew Lunn. 7) Remove linear SKB assumption in fou/fou6, from Eric Dumazet. 8) Missing udplite rehash callbacks, from Alexey Kodanev. 9) Log dirty pages properly in vhost, from Jason Wang. 10) Use consume_skb() in neigh_probe() as this is a normal free not a drop, from Yang Wei. Likewise in macvlan_process_broadcast(). 11) Missing device_del() in mdiobus_register() error paths, from Thomas Petazzoni. 12) Fix checksum handling of short packets in mlx5, from Cong Wang. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (96 commits) bpf: in __bpf_redirect_no_mac pull mac only if present virtio_net: bulk free tx skbs net: phy: phy driver features are mandatory isdn: avm: Fix string plus integer warning from Clang net/mlx5e: Fix cb_ident duplicate in indirect block register net/mlx5e: Fix wrong (zero) TX drop counter indication for representor net/mlx5e: Fix wrong error code return on FEC query failure net/mlx5e: Force CHECKSUM_UNNECESSARY for short ethernet frames tools: bpftool: Cleanup license mess bpf: fix inner map masking to prevent oob under speculation bpf: pull in pkt_sched.h header for tooling to fix bpftool build selftests: forwarding: Add a test case for externally learned FDB entries selftests: mlxsw: Test FDB offload indication mlxsw: spectrum_switchdev: Do not treat static FDB entries as sticky net: bridge: Mark FDB entries that were added by user as such mlxsw: spectrum_fid: Update dummy FID index mlxsw: pci: Return error on PCI reset timeout mlxsw: pci: Increase PCI SW reset timeout mlxsw: pci: Ring CQ's doorbell before RDQ's MAINTAINERS: update email addresses of liquidio driver maintainers ...
2019-01-20Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds8-56/+117
Pull virtio/vhost fixes and cleanups from Michael Tsirkin: "Fixes and cleanups all over the place" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: vhost/scsi: Use copy_to_iter() to send control queue response vhost: return EINVAL if iovecs size does not match the message size virtio-balloon: tweak config_changed implementation virtio: don't allocate vqs when names[i] = NULL virtio_pci: use queue idx instead of array idx to set up the vq virtio: document virtio_config_ops restrictions virtio: fix virtio_config_ops description
2019-01-20virtio_net: bulk free tx skbsMichael S. Tsirkin1-6/+6
Use napi_consume_skb() to get bulk free. Note that napi_consume_skb is safe to call in a non-napi context as long as the napi_budget flag is correct. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-20Merge tag 'libnvdimm-fixes-5.0-rc3' of ↵Linus Torvalds3-19/+13
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm fixes from Dan Williams: "A crash fix, a build warning fix, a miscellaneous small cleanups. In case anyone is looking for them, there was a regression caught by testing that caused two patches to be dropped from this update. Those patches have been reworked and will soak for another week / re-target 5.0-rc4. - Fix driver initialization crash due to the inability to report an 'error' state for a DIMM's security capability. - Build warning fix for little-endian ARM64 builds - Fix a potential race between the EDAC driver's usage of the NFIT SMBIOS id for a DIMM and the driver shutdown path. - A small collection of one-line benign cleanups for duplicate variable assignments, a duplicate header include and a mis-typed function argument" * tag 'libnvdimm-fixes-5.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: libnvdimm/security: Fix nvdimm_security_state() state request selection acpi/nfit: Remove duplicate set nd_set in acpi_nfit_init_interleave_set() acpi/nfit: Fix race accessing memdev in nfit_get_smbios_id() libnvdimm/dimm: Fix security capability detection for non-Intel NVDIMMs nfit: Mark some functions as __maybe_unused ACPI/nfit: delete the function to_acpi_nfit_desc ACPI/nfit: delete the redundant header file
2019-01-20Merge tag 'linux-watchdog-5.0-rc-fixes' of ↵Linus Torvalds3-4/+6
git://www.linux-watchdog.org/linux-watchdog Pull watchdog fixes from Wim Van Sebroeck: - mt7621_wdt/rt2880_wdt: Fix compilation problem - tqmx86: Fix a couple IS_ERR() vs NULL bugs * tag 'linux-watchdog-5.0-rc-fixes' of git://www.linux-watchdog.org/linux-watchdog: watchdog: tqmx86: Fix a couple IS_ERR() vs NULL bugs watchdog: mt7621_wdt/rt2880_wdt: Fix compilation problem
2019-01-20Merge tag 'scsi-fixes' of ↵Linus Torvalds24-86/+157
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "A set of 17 fixes. Most of these are minor or trivial. The one fix that may be serious is the isci one: the bug can cause hba parameters to be set from uninitialized memory. I don't think it's exploitable, but you never know" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: cxgb4i: add wait_for_completion() scsi: qla1280: set 64bit coherent mask scsi: ufs: Fix geometry descriptor size scsi: megaraid_sas: Retry reads of outbound_intr_status reg scsi: qedi: Add ep_state for login completion on un-reachable targets scsi: ufs: Fix system suspend status scsi: qla2xxx: Use correct number of vectors for online CPUs scsi: hisi_sas: Set protection parameters prior to adding SCSI host scsi: tcmu: avoid cmd/qfull timers updated whenever a new cmd comes scsi: isci: initialize shost fully before calling scsi_add_host() scsi: lpfc: lpfc_sli: Mark expected switch fall-throughs scsi: smartpqi_init: fix boolean expression in pqi_device_remove_start scsi: core: Synchronize request queue PM status only on successful resume scsi: pm80xx: reduce indentation scsi: qla4xxx: check return code of qla4xxx_copy_from_fwddb_param scsi: megaraid_sas: correct an info message scsi: target/iscsi: fix error msg typo when create lio_qr_cache failed scsi: sd: Fix cache_type_store()
2019-01-20Merge tag 'for-linus-20190118' of git://git.kernel.dk/linux-blockLinus Torvalds4-17/+18
Pull block fixes from Jens Axboe: - block size setting fixes for loop/nbd (Jan Kara) - md bio_alloc_mddev() cleanup (Marcos) - Ensure we don't lose the REQ_INTEGRITY flag (Ming) - Two NVMe fixes by way of Christoph: - Fix NVMe IRQ calculation (Ming) - Uninitialized variable in nvmet-tcp (Sagi) - BFQ comment fix (Paolo) - License cleanup for recently added blk-mq-debugfs-zoned (Thomas) * tag 'for-linus-20190118' of git://git.kernel.dk/linux-block: block: Cleanup license notice nvme-pci: fix nvme_setup_irqs() nvmet-tcp: fix uninitialized variable access block: don't lose track of REQ_INTEGRITY flag blockdev: Fix livelocks on loop device nbd: Use set_blocksize() to set device blocksize md: Make bio_alloc_mddev use bio_alloc_bioset block, bfq: fix comments on __bfq_deactivate_entity
2019-01-19net: phy: phy driver features are mandatoryCamelia Groza1-0/+5
Since phy driver features became a link_mode bitmap, phy drivers that don't have a list of features configured will cause the kernel to crash when probed. Prevent the phy driver from registering if the features field is missing. Fixes: 719655a14971 ("net: phy: Replace phy driver features u32 with link_mode bitmap") Reported-by: Scott Wood <oss@buserror.net> Signed-off-by: Camelia Groza <camelia.groza@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-19isdn: avm: Fix string plus integer warning from ClangNathan Chancellor1-1/+1
A recent commit in Clang expanded the -Wstring-plus-int warning, showing some odd behavior in this file. drivers/isdn/hardware/avm/b1.c:426:30: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int] cinfo->version[j] = "\0\0" + 1; ~~~~~~~^~~ drivers/isdn/hardware/avm/b1.c:426:30: note: use array indexing to silence this warning cinfo->version[j] = "\0\0" + 1; ^ & [ ] 1 warning generated. This is equivalent to just "\0". Nick pointed out that it is smarter to use "" instead of "\0" because "" is used elsewhere in the kernel and can be deduplicated at the linking stage. Link: https://github.com/ClangBuiltLinux/linux/issues/309 Suggested-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-19Merge tag 'mlx5-fixes-2019-01-18' of ↵David S. Miller3-14/+34
git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux Saeed Mahameed says: ==================== Mellanox, mlx5 fixes 2019-01-18 This series introduces some fixes to mlx5 driver. Please pull and let me know if there is any problem. For -stable v4.18 ('net/mlx5e: Force CHECKSUM_UNNECESSARY for short ethernet frames') The patch doesn't apply cleanly to 4.18.y, but it is very simple to resolve, what should be the procedure here ? ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-19net/mlx5e: Fix cb_ident duplicate in indirect block registerEli Britstein1-13/+16
Previously the identifier used for indirect block callback registry and for block rule cb registry (when done via indirect blocks) was the pointer to the tunnel netdev we were interested in receiving updates on. This worked fine if a single PF existed that registered one callback for the tunnel netdev of interest. However, if multiple PFs are in place then the 2nd PF tries to register with the same tunnel netdev identifier. This leads to EEXIST errors and/or incorrect cb deletions. Prevent this conflict by using the rpriv pointer as the identifier for netdev indirect block cb registry, allowing each PF to register a unique callback per tunnel netdev. For block cb registry, the same PF may register multiple cbs to the same block if using TC shared blocks. Instead of the rpriv, use the pointer to the allocated indr_priv data as the identifier here. This means that there can be a unique block callback for each PF/tunnel netdev combo. Fixes: f5bc2c5de101 ("net/mlx5e: Support TC indirect block notifications for eswitch uplink reprs") Signed-off-by: Eli Britstein <elibr@mellanox.com> Reviewed-by: Oz Shlomo <ozsh@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-01-19net/mlx5e: Fix wrong (zero) TX drop counter indication for representorTariq Toukan1-0/+1
For representors, the TX dropped counter is not folded from the per-ring counters. Fix it. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-01-19net/mlx5e: Fix wrong error code return on FEC query failureShay Agroskin1-1/+4
Advertised and configured FEC query failure resulted in printing wrong error code. Fixes: 6cfa94605091 ("net/mlx5e: Ethtool driver callback for query/set FEC policy") Signed-off-by: Shay Agroskin <shayag@mellanox.com> Reported-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-01-19net/mlx5e: Force CHECKSUM_UNNECESSARY for short ethernet framesCong Wang1-0/+13
When an ethernet frame is padded to meet the minimum ethernet frame size, the padding octets are not covered by the hardware checksum. Fortunately the padding octets are usually zero's, which don't affect checksum. However, we have a switch which pads non-zero octets, this causes kernel hardware checksum fault repeatedly. Prior to: commit '88078d98d1bb ("net: pskb_trim_rcsum() and CHECKSUM_COMPLETE ...")' skb checksum was forced to be CHECKSUM_NONE when padding is detected. After it, we need to keep skb->csum updated, like what we do for RXFCS. However, fixing up CHECKSUM_COMPLETE requires to verify and parse IP headers, it is not worthy the effort as the packets are so small that CHECKSUM_COMPLETE can't save anything. Fixes: 88078d98d1bb ("net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends"), Cc: Eric Dumazet <edumazet@google.com> Cc: Tariq Toukan <tariqt@mellanox.com> Cc: Nikola Ciprich <nikola.ciprich@linuxbox.cz> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-01-19mlxsw: spectrum_switchdev: Do not treat static FDB entries as stickyIdo Schimmel1-6/+6
The driver currently treats static FDB entries as both static and sticky. This is incorrect and prevents such entries from being roamed to a different port via learning. Fix this by configuring static entries with ageing disabled and roaming enabled. In net-next we can add proper support for the newly introduced 'sticky' flag. Fixes: 56ade8fe3fe1 ("mlxsw: spectrum: Add initial support for Spectrum ASIC") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reported-by: Alexander Petrovskiy <alexpe@mellanox.com> Reviewed-by: Petr Machata <petrm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-19mlxsw: spectrum_fid: Update dummy FID indexNir Dotan1-2/+2
When using a tc flower action of egress mirred redirect, the driver adds an implicit FID setting action. This implicit action sets a dummy FID to the packet and is used as part of a design for trapping unmatched flows in OVS. While this implicit FID setting action is supposed to be a NOP when a redirect action is added, in Spectrum-2 the FID record is consulted as the dummy FID index is an 802.1D FID index and the packet is dropped instead of being redirected. Set the dummy FID index value to be within 802.1Q range. This satisfies both Spectrum-1 which ignores the FID and Spectrum-2 which identifies it as an 802.1Q FID and will then follow the redirect action. Fixes: c3ab435466d5 ("mlxsw: spectrum: Extend to support Spectrum-2 ASIC") Signed-off-by: Nir Dotan <nird@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-19mlxsw: pci: Return error on PCI reset timeoutNir Dotan1-2/+2
Return an appropriate error in the case when the driver timeouts on waiting for firmware to go out of PCI reset. Fixes: 233fa44bd67a ("mlxsw: pci: Implement reset done check") Signed-off-by: Nir Dotan <nird@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-19mlxsw: pci: Increase PCI SW reset timeoutNir Dotan1-1/+1
Spectrum-2 PHY layer introduces a calibration period which is a part of the Spectrum-2 firmware boot process. Hence increase the SW timeout waiting for the firmware to come out of boot. This does not increase system boot time in cases where the firmware PHY calibration process is done quickly. Fixes: c3ab435466d5 ("mlxsw: spectrum: Extend to support Spectrum-2 ASIC") Signed-off-by: Nir Dotan <nird@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-19mlxsw: pci: Ring CQ's doorbell before RDQ'sIdo Schimmel2-5/+8
When a packet should be trapped to the CPU the device consumes a WQE (work queue element) from an RDQ (receive descriptor queue) and copies the packet to the address specified in the WQE. The device then tries to post a CQE (completion queue element) that contains various metadata (e.g., ingress port) about the packet to a CQ (completion queue). In case the device managed to consume a WQE, but did not manage to post the corresponding CQE, it will get stuck. This unlikely situation can be triggered due to the scheme the driver is currently using to process CQEs. The driver will consume up to 512 CQEs at a time and after processing each corresponding WQE it will ring the RDQ's doorbell, letting the device know that a new WQE was posted for it to consume. Only after processing all the CQEs (up to 512), the driver will ring the CQ's doorbell, letting the device know that new ones can be posted. Fix this by having the driver ring the CQ's doorbell for every processed CQE, but before ringing the RDQ's doorbell. This guarantees that whenever we post a new WQE, there is a corresponding CQE available. Copy the currently processed CQE to prevent the device from overwriting it with a new CQE after ringing the doorbell. Note that the driver still arms the CQ only after processing all the pending CQEs, so that interrupts for this CQ will only be delivered after the driver finished its processing. Before commit 8404f6f2e8ed ("mlxsw: pci: Allow to use CQEs of version 1 and version 2") the issue was virtually impossible to trigger since the number of CQEs was twice the number of WQEs and the number of CQEs processed at a time was equal to the number of available WQEs. Fixes: 8404f6f2e8ed ("mlxsw: pci: Allow to use CQEs of version 1 and version 2") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reported-by: Semion Lisyansky <semionl@mellanox.com> Tested-by: Semion Lisyansky <semionl@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-19net: Fix typo in NET_FAILOVER help textJonathan Neuschäfer1-1/+1
"also enables" should not be spelled as one word. Fixes: cfc80d9a1163 ("net: Introduce net_failover driver") Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-19net: Fix usage of pskb_trim_rcsumRoss Lagerwall1-0/+1
In certain cases, pskb_trim_rcsum() may change skb pointers. Reinitialize header pointers afterwards to avoid potential use-after-frees. Add a note in the documentation of pskb_trim_rcsum(). Found by KASAN. Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-18Merge tag 'media/v5.0-1' of ↵Linus Torvalds2-6/+22
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media fixes from Mauro Carvalho Chehab: - a regression fix at v4l2 core, with affects multi-plane streams - a fix at vim2m driver * tag 'media/v5.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: media: vim2m: only cancel work if it is for right context media: v4l: ioctl: Validate num_planes for debug messages media: v4l: ioctl: Validate num_planes before using it media: v4l2-ioctl: Clear only per-plane reserved fields
2019-01-18Merge tag 'pci-v5.0-fixes-2' of ↵Linus Torvalds3-24/+23
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI fixes from Bjorn Helgaas:: - Fix PCI kconfig menu organization (Rob Herring) - Fix pci_alloc_irq_vectors_affinity() error return to allow "reduce and retry" for drivers using IRQ sets (Ming Lei) - Fix "pci=disable_acs_redir" initdata use-after-free problem (Logan Gunthorpe) * tag 'pci-v5.0-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: Fix __initdata issue with "pci=disable_acs_redir" parameter PCI/MSI: Return -ENOSPC from pci_alloc_irq_vectors_affinity() PCI: Fix PCI kconfig menu organization
2019-01-18Merge tag 'i3c/fixes-for-5.0-rc3' of ↵Linus Torvalds2-7/+4
git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux Pull i3c fixes from Boris Brezillon: - Fix the error check on master->sysclk val in the Cadence driver - Fix reattach implementation in the Designware driver * tag 'i3c/fixes-for-5.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: i3c: master: dw-i3c-master: fix i3c_attach/reattach i3c: master: Fix an error checking typo in 'cdns_i3c_master_probe()'
2019-01-18Merge tag 'mtd/fixes-for-5.0-rc3' of git://git.infradead.org/linux-mtdLinus Torvalds3-23/+2
Pull mtd fixes from Boris Brezillon: "Raw NAND changes: - jz4740: fix a compilation warning - fsmc: fix a regression introduced by ->select_chip() deprecation - denali: fix a regression introduced by NAND_KEEP_TIMINGS addition" * tag 'mtd/fixes-for-5.0-rc3' of git://git.infradead.org/linux-mtd: mtd: rawnand: denali: get ->setup_data_interface() working again mtd: nand: jz4740: fix '__iomem *' vs. '* __iomem' mtd: rawnand: fsmc: Keep bank enable bit set
2019-01-18Merge tag 'regmap-fix-v5.0-rc2' of ↵Linus Torvalds1-1/+7
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap Pull regmap fixes from Mark Brown: "The cleanups for the way we handle type information introduced during the merge window revealed that we'd been abusing the irq APIs for a long time, causing breakage for systems. This has a couple of minimal fixes for that which restore the previous behaviour for the time being, we'll fix it properly for v5.1 but that'd be a bit much to do as a bug fix" * tag 'regmap-fix-v5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap-irq: do not write mask register if mask_base is zero regmap: regmap-irq: silently ignore unsupported type settings
2019-01-18net: phy: mdio_bus: add missing device_del() in mdiobus_register() error ↵Thomas Petazzoni1-0/+1
handling The current code in __mdiobus_register() doesn't properly handle failures returned by the devm_gpiod_get_optional() call: it returns immediately, without unregistering the device that was added by the call to device_register() earlier in the function. This leaves a stale device, which then causes a NULL pointer dereference in the code that handles deferred probing: [ 1.489982] Unable to handle kernel NULL pointer dereference at virtual address 00000074 [ 1.498110] pgd = (ptrval) [ 1.500838] [00000074] *pgd=00000000 [ 1.504432] Internal error: Oops: 17 [#1] SMP ARM [ 1.509133] Modules linked in: [ 1.512192] CPU: 1 PID: 51 Comm: kworker/1:3 Not tainted 4.20.0-00039-g3b73a4cc8b3e-dirty #99 [ 1.520708] Hardware name: Xilinx Zynq Platform [ 1.525261] Workqueue: events deferred_probe_work_func [ 1.530403] PC is at klist_next+0x10/0xfc [ 1.534403] LR is at device_for_each_child+0x40/0x94 [ 1.539361] pc : [<c0683fbc>] lr : [<c0455d90>] psr: 200e0013 [ 1.545628] sp : ceeefe68 ip : 00000001 fp : ffffe000 [ 1.550863] r10: 00000000 r9 : c0c66790 r8 : 00000000 [ 1.556079] r7 : c0457d44 r6 : 00000000 r5 : ceeefe8c r4 : cfa2ec78 [ 1.562604] r3 : 00000064 r2 : c0457d44 r1 : ceeefe8c r0 : 00000064 [ 1.569129] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none [ 1.576263] Control: 18c5387d Table: 0ed7804a DAC: 00000051 [ 1.582013] Process kworker/1:3 (pid: 51, stack limit = 0x(ptrval)) [ 1.588280] Stack: (0xceeefe68 to 0xceef0000) [ 1.592630] fe60: cfa2ec78 c0c03c08 00000000 c0457d44 00000000 c0c66790 [ 1.600814] fe80: 00000000 c0455d90 ceeefeac 00000064 00000000 0d7a542e cee9d494 cfa2ec78 [ 1.608998] fea0: cfa2ec78 00000000 c0457d44 c0457d7c cee9d494 c0c03c08 00000000 c0455dac [ 1.617182] fec0: cf98ba44 cf926a00 cee9d494 0d7a542e 00000000 cf935a10 cf935a10 cf935a10 [ 1.625366] fee0: c0c4e9b8 c0457d7c c0c4e80c 00000001 cf935a10 c0457df4 cf935a10 c0c4e99c [ 1.633550] ff00: c0c4e99c c045a27c c0c4e9c4 ced63f80 cfde8a80 cfdebc00 00000000 c013893c [ 1.641734] ff20: cfde8a80 cfde8a80 c07bd354 ced63f80 ced63f94 cfde8a80 00000008 c0c02d00 [ 1.649936] ff40: cfde8a98 cfde8a80 ffffe000 c0139a30 ffffe000 c0c6624a c07bd354 00000000 [ 1.658120] ff60: ffffe000 cee9e780 ceebfe00 00000000 ceeee000 ced63f80 c0139788 cf8cdea4 [ 1.666304] ff80: cee9e79c c013e598 00000001 ceebfe00 c013e44c 00000000 00000000 00000000 [ 1.674488] ffa0: 00000000 00000000 00000000 c01010e8 00000000 00000000 00000000 00000000 [ 1.682671] ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1.690855] ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000 [ 1.699058] [<c0683fbc>] (klist_next) from [<c0455d90>] (device_for_each_child+0x40/0x94) [ 1.707241] [<c0455d90>] (device_for_each_child) from [<c0457d7c>] (device_reorder_to_tail+0x38/0x88) [ 1.716476] [<c0457d7c>] (device_reorder_to_tail) from [<c0455dac>] (device_for_each_child+0x5c/0x94) [ 1.725692] [<c0455dac>] (device_for_each_child) from [<c0457d7c>] (device_reorder_to_tail+0x38/0x88) [ 1.734927] [<c0457d7c>] (device_reorder_to_tail) from [<c0457df4>] (device_pm_move_to_tail+0x28/0x40) [ 1.744235] [<c0457df4>] (device_pm_move_to_tail) from [<c045a27c>] (deferred_probe_work_func+0x58/0x8c) [ 1.753746] [<c045a27c>] (deferred_probe_work_func) from [<c013893c>] (process_one_work+0x210/0x4fc) [ 1.762888] [<c013893c>] (process_one_work) from [<c0139a30>] (worker_thread+0x2a8/0x5c0) [ 1.771072] [<c0139a30>] (worker_thread) from [<c013e598>] (kthread+0x14c/0x154) [ 1.778482] [<c013e598>] (kthread) from [<c01010e8>] (ret_from_fork+0x14/0x2c) [ 1.785689] Exception stack(0xceeeffb0 to 0xceeefff8) [ 1.790739] ffa0: 00000000 00000000 00000000 00000000 [ 1.798923] ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1.807107] ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 1.813724] Code: e92d47f0 e1a05000 e8900048 e1a00003 (e5937010) [ 1.819844] ---[ end trace 3c2c0c8b65399ec9 ]--- The actual error that we had from devm_gpiod_get_optional() was -EPROBE_DEFER, due to the GPIO being provided by a driver that is probed later than the Ethernet controller driver. To fix this, we simply add the missing device_del() invocation in the error path. Fixes: 69226896ad636 ("mdio_bus: Issue GPIO RESET to PHYs") Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-18Merge tag 'for-linus-5.0-rc3-tag' of ↵Linus Torvalds3-35/+80
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen fixes from Juergen Gross: - Several fixes for the Xen pvcalls drivers (1 fix for the backend and 8 for the frontend). - A fix for a rather longstanding bug in the Xen sched_clock() interface which led to weird time jumps when migrating the system. - A fix for avoiding accesses to x2apic MSRs in Xen PV guests. * tag 'for-linus-5.0-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen: Fix x86 sched_clock() interface for xen pvcalls-front: fix potential null dereference always clear the X2APIC_ENABLE bit for PV guest pvcalls-front: Avoid get_free_pages(GFP_KERNEL) under spinlock xen/pvcalls: remove set but not used variable 'intf' pvcalls-back: set -ENOTCONN in pvcalls_conn_back_read pvcalls-front: don't return error when the ring is full pvcalls-front: properly allocate sk pvcalls-front: don't try to free unallocated rings pvcalls-front: read all data before closing the connection
2019-01-18Merge branch 'linus' of ↵Linus Torvalds9-77/+63
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fixes from Herbert Xu: "This fixes the following issues: - Zero-length DMA mapping in caam - Invalidly mapping stack memory for DMA in talitos - Use after free in cavium/nitrox - Key parsing in authenc - Undefined shift in sm3 - Bogus completion call in authencesn - SHA support detection in caam" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: sm3 - fix undefined shift by >= width of value crypto: talitos - fix ablkcipher for CONFIG_VMAP_STACK crypto: talitos - reorder code in talitos_edesc_alloc() crypto: adiantum - initialize crypto_spawn::inst crypto: cavium/nitrox - Use after free in process_response_list() crypto: authencesn - Avoid twice completion call in decrypt path crypto: caam - fix SHA support detection crypto: caam - fix zero-length buffer DMA mapping crypto: ccree - convert to use crypto_authenc_extractkeys() crypto: bcm - convert to use crypto_authenc_extractkeys() crypto: authenc - fix parsing key with misaligned rta_len
2019-01-18Merge tag 'acpi-5.0-rc3' of ↵Linus Torvalds7-18/+24
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI fixes from Rafael Wysocki: "These fix an ACPI initialization ordering issue introduced in the 4.17 time frame and causing functional problems to appear on multiple systems and fix some fallout of the recent change to enable building kernels with ACPI support and without PCI. Specifics: - Restore the ACPI initialization ordering changed implicitly by the module-level AML handling rework during the 4.17 development cycle that caused the EC address space handler based on information from ECDT to be set up before loading AML definition blocks, making it effectively not accessible by AML on some systems that don't work as expected any more (Rafael Wysocki). - Add direct dependencies on PCI to Kconfig in multiple places for code that depends on both ACPI and PCI, but the PCI dependency was implicitly satisfied by the ACPI dependency before, to prevent invalid configurations from being created, for example by randconfig (Sinan Kaya)" * tag 'acpi-5.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: EC: Look for ECDT EC after calling acpi_load_tables() drivers: thermal: int340x_thermal: Make PCI dependency explicit x86/intel/lpss: Make PCI dependency explicit platform/x86: apple-gmux: Make PCI dependency explicit platform/x86: intel_pmc: Make PCI dependency explicit platform/x86: intel_ips: make PCI dependency explicit vga-switcheroo: make PCI dependency explicit ata: pata_acpi: Make PCI dependency explicit ACPI / LPSS: Make PCI dependency explicit
2019-01-18Merge tag 'fbdev-v5.0-rc3' of git://github.com/bzolnier/linuxLinus Torvalds5-27/+28
Pull fbdev fixes from Bartlomiej Zolnierkiewicz: - fix stack memory leak in omap2fb driver (Vlad Tsyrklevich) - fix OF node name handling v4.20 regression in offb driver (Rob Herring) - convert CONFIG_FB_LOGO_CENTER config option added in v5.0-rc1 into a kernel parameter (Peter Rosin) * tag 'fbdev-v5.0-rc3' of git://github.com/bzolnier/linux: fbdev: fbmem: convert CONFIG_FB_LOGO_CENTER into a cmd line option fbdev: offb: Fix OF node name handling omap2fb: Fix stack memory disclosure
2019-01-18Merge tag 'drm-fixes-2019-01-18-1' of git://anongit.freedesktop.org/drm/drmLinus Torvalds1-0/+33
Pull drm update from Dave Airlie: "Add nouveau TU102 (RTX 2080 Ti) support" * tag 'drm-fixes-2019-01-18-1' of git://anongit.freedesktop.org/drm/drm: drm/nouveau/core: recognise TU102
2019-01-18Merge branch 'acpi-pci'Rafael J. Wysocki6-6/+12
* acpi-pci: drivers: thermal: int340x_thermal: Make PCI dependency explicit x86/intel/lpss: Make PCI dependency explicit platform/x86: apple-gmux: Make PCI dependency explicit platform/x86: intel_pmc: Make PCI dependency explicit platform/x86: intel_ips: make PCI dependency explicit vga-switcheroo: make PCI dependency explicit ata: pata_acpi: Make PCI dependency explicit ACPI / LPSS: Make PCI dependency explicit
2019-01-18mtd: rawnand: denali: get ->setup_data_interface() working againMasahiro Yamada1-1/+1
Commit 7a08dbaedd36 ("mtd: rawnand: Move ->setup_data_interface() to nand_controller_ops") missed to invert the if-conditonal for denali. Since then, the Denali NAND driver cannnot invoke setup_data_interface. Fixes: 7a08dbaedd36 ("mtd: rawnand: Move ->setup_data_interface() to nand_controller_ops") Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
2019-01-18mtd: nand: jz4740: fix '__iomem *' vs. '* __iomem'Luc Van Oostenryck1-1/+1
The function jz_nand_ioremap_resource() needs a pointer to an __iomem pointer as its last argument but this argument is declared as: void * __iomem *base Fix this by using the correct declaration: void __iomem **base which then also removes the following Sparse's warnings: 282:15: warning: incorrect type in assignment (different address spaces) 282:15: expected void *[noderef] <asn:2> 282:15: got void [noderef] <asn:2> * 322:57: warning: incorrect type in argument 4 (different address spaces) 322:57: expected void *[noderef] <asn:2> *base 322:57: got void [noderef] <asn:2> ** 402:67: warning: incorrect type in argument 4 (different address spaces) 402:67: expected void *[noderef] <asn:2> *base 402:67: got void [noderef] <asn:2> ** Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> Acked-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
2019-01-18macvlan: replace kfree_skb by consume_skb for drop profilesYang Wei1-1/+1
Replace the kfree_skb() by consume_skb() to be drop monitor(dropwatch, perf) friendly. Signed-off-by: Yang Wei <yang.wei9@zte.com.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-18amd-xgbe: Fix mdio access for non-zero ports and clause 45 PHYsLendacky, Thomas2-8/+16
The XGBE hardware has support for performing MDIO operations using an MDIO command request. The driver mistakenly uses the mdio port address as the MDIO command request device address instead of the MDIO command request port address. Additionally, the driver does not properly check for and create a clause 45 MDIO command. Check the supplied MDIO register to determine if the request is a clause 45 operation (MII_ADDR_C45). For a clause 45 operation, extract the device address and register number from the supplied MDIO register and use them to set the MDIO command request device address and register number fields. For a clause 22 operation, the MDIO request device address is set to zero and the MDIO command request register number is set to the supplied MDIO register. In either case, the supplied MDIO port address is used as the MDIO command request port address. Fixes: 732f2ab7afb9 ("amd-xgbe: Add support for MDIO attached PHYs") Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Tested-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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