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2019-12-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds
Pull networking fixes from David Miller: 1) Several nf_flow_table_offload fixes from Pablo Neira Ayuso, including adding a missing ipv6 match description. 2) Several heap overflow fixes in mwifiex from qize wang and Ganapathi Bhat. 3) Fix uninit value in bond_neigh_init(), from Eric Dumazet. 4) Fix non-ACPI probing of nxp-nci, from Stephan Gerhold. 5) Fix use after free in tipc_disc_rcv(), from Tuong Lien. 6) Enforce limit of 33 tail calls in mips and riscv JIT, from Paul Chaignon. 7) Multicast MAC limit test is off by one in qede, from Manish Chopra. 8) Fix established socket lookup race when socket goes from TCP_ESTABLISHED to TCP_LISTEN, because there lacks an intervening RCU grace period. From Eric Dumazet. 9) Don't send empty SKBs from tcp_write_xmit(), also from Eric Dumazet. 10) Fix active backup transition after link failure in bonding, from Mahesh Bandewar. 11) Avoid zero sized hash table in gtp driver, from Taehee Yoo. 12) Fix wrong interface passed to ->mac_link_up(), from Russell King. 13) Fix DSA egress flooding settings in b53, from Florian Fainelli. 14) Memory leak in gmac_setup_txqs(), from Navid Emamdoost. 15) Fix double free in dpaa2-ptp code, from Ioana Ciornei. 16) Reject invalid MTU values in stmmac, from Jose Abreu. 17) Fix refcount leak in error path of u32 classifier, from Davide Caratti. 18) Fix regression causing iwlwifi firmware crashes on boot, from Anders Kaseorg. 19) Fix inverted return value logic in llc2 code, from Chan Shu Tak. 20) Disable hardware GRO when XDP is attached to qede, frm Manish Chopra. 21) Since we encode state in the low pointer bits, dst metrics must be at least 4 byte aligned, which is not necessarily true on m68k. Add annotations to fix this, from Geert Uytterhoeven. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (160 commits) sfc: Include XDP packet headroom in buffer step size. sfc: fix channel allocation with brute force net: dst: Force 4-byte alignment of dst_metrics selftests: pmtu: fix init mtu value in description hv_netvsc: Fix unwanted rx_table reset net: phy: ensure that phy IDs are correctly typed mod_devicetable: fix PHY module format qede: Disable hardware gro when xdp prog is installed net: ena: fix issues in setting interrupt moderation params in ethtool net: ena: fix default tx interrupt moderation interval net/smc: unregister ib devices in reboot_event net: stmmac: platform: Fix MDIO init for platforms without PHY llc2: Fix return statement of llc_stat_ev_rx_null_dsap_xid_c (and _test_c) net: hisilicon: Fix a BUG trigered by wrong bytes_compl net: dsa: ksz: use common define for tag len s390/qeth: don't return -ENOTSUPP to userspace s390/qeth: fix promiscuous mode after reset s390/qeth: handle error due to unsupported transport mode cxgb4: fix refcount init for TC-MQPRIO offload tc-testing: initial tdc selftests for cls_u32 ...
2019-12-11bpf, mips: Limit to 33 tail callsPaul Chaignon
All BPF JIT compilers except RISC-V's and MIPS' enforce a 33-tail calls limit at runtime. In addition, a test was recently added, in tailcalls2, to check this limit. This patch updates the tail call limit in MIPS' JIT compiler to allow 33 tail calls. Fixes: b6bd53f9c4e8 ("MIPS: Add missing file for eBPF JIT.") Reported-by: Mahshid Khezri <khezri.mahshid@gmail.com> Signed-off-by: Paul Chaignon <paul.chaignon@orange.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Martin KaFai Lau <kafai@fb.com> Link: https://lore.kernel.org/bpf/b8eb2caac1c25453c539248e56ca22f74b5316af.1575916815.git.paul.chaignon@gmail.com
2019-12-09MIPS: OCTEON: Replace SIZEOF_FIELD() macroPankaj Bharadiya
Switch to the standard sizeof_field() macro to find the size of a member of a struct and remove the custom SIZEOF_FIELD() macro. Signed-off-by: Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@intel.com> Link: https://lore.kernel.org/r/20190924105839.110713-4-pankaj.laxminarayan.bharadiya@intel.com Co-developed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Kees Cook <keescook@chromium.org>
2019-12-04arch: sembuf.h: make uapi asm/sembuf.h self-containedMasahiro Yamada
Userspace cannot compile <asm/sembuf.h> due to some missing type definitions. For example, building it for x86 fails as follows: CC usr/include/asm/sembuf.h.s In file included from <command-line>:32:0: usr/include/asm/sembuf.h:17:20: error: field `sem_perm' has incomplete type struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ ^~~~~~~~ usr/include/asm/sembuf.h:24:2: error: unknown type name `__kernel_time_t' __kernel_time_t sem_otime; /* last semop time */ ^~~~~~~~~~~~~~~ usr/include/asm/sembuf.h:25:2: error: unknown type name `__kernel_ulong_t' __kernel_ulong_t __unused1; ^~~~~~~~~~~~~~~~ usr/include/asm/sembuf.h:26:2: error: unknown type name `__kernel_time_t' __kernel_time_t sem_ctime; /* last change time */ ^~~~~~~~~~~~~~~ usr/include/asm/sembuf.h:27:2: error: unknown type name `__kernel_ulong_t' __kernel_ulong_t __unused2; ^~~~~~~~~~~~~~~~ usr/include/asm/sembuf.h:29:2: error: unknown type name `__kernel_ulong_t' __kernel_ulong_t sem_nsems; /* no. of semaphores in array */ ^~~~~~~~~~~~~~~~ usr/include/asm/sembuf.h:30:2: error: unknown type name `__kernel_ulong_t' __kernel_ulong_t __unused3; ^~~~~~~~~~~~~~~~ usr/include/asm/sembuf.h:31:2: error: unknown type name `__kernel_ulong_t' __kernel_ulong_t __unused4; ^~~~~~~~~~~~~~~~ It is just a matter of missing include directive. Include <asm/ipcbuf.h> to make it self-contained, and add it to the compile-test coverage. Link: http://lkml.kernel.org/r/20191030063855.9989-3-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-12-04arch: msgbuf.h: make uapi asm/msgbuf.h self-containedMasahiro Yamada
Userspace cannot compile <asm/msgbuf.h> due to some missing type definitions. For example, building it for x86 fails as follows: CC usr/include/asm/msgbuf.h.s In file included from usr/include/asm/msgbuf.h:6:0, from <command-line>:32: usr/include/asm-generic/msgbuf.h:25:20: error: field `msg_perm' has incomplete type struct ipc64_perm msg_perm; ^~~~~~~~ usr/include/asm-generic/msgbuf.h:27:2: error: unknown type name `__kernel_time_t' __kernel_time_t msg_stime; /* last msgsnd time */ ^~~~~~~~~~~~~~~ usr/include/asm-generic/msgbuf.h:28:2: error: unknown type name `__kernel_time_t' __kernel_time_t msg_rtime; /* last msgrcv time */ ^~~~~~~~~~~~~~~ usr/include/asm-generic/msgbuf.h:29:2: error: unknown type name `__kernel_time_t' __kernel_time_t msg_ctime; /* last change time */ ^~~~~~~~~~~~~~~ usr/include/asm-generic/msgbuf.h:41:2: error: unknown type name `__kernel_pid_t' __kernel_pid_t msg_lspid; /* pid of last msgsnd */ ^~~~~~~~~~~~~~ usr/include/asm-generic/msgbuf.h:42:2: error: unknown type name `__kernel_pid_t' __kernel_pid_t msg_lrpid; /* last receive pid */ ^~~~~~~~~~~~~~ It is just a matter of missing include directive. Include <asm/ipcbuf.h> to make it self-contained, and add it to the compile-test coverage. Link: http://lkml.kernel.org/r/20191030063855.9989-2-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-12-03Merge tag 'pci-v5.5-changes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: "Enumeration: - Warn if a host bridge has no NUMA info (Yunsheng Lin) - Add PCI_STD_NUM_BARS for the number of standard BARs (Denis Efremov) Resource management: - Fix boot-time Embedded Controller GPE storm caused by incorrect resource assignment after ACPI Bus Check Notification (Mika Westerberg) - Protect pci_reassign_bridge_resources() against concurrent addition/removal (Benjamin Herrenschmidt) - Fix bridge dma_ranges resource list cleanup (Rob Herring) - Add "pci=hpmmiosize" and "pci=hpmmioprefsize" parameters to control the MMIO and prefetchable MMIO window sizes of hotplug bridges independently (Nicholas Johnson) - Fix MMIO/MMIO_PREF window assignment that assigned more space than desired (Nicholas Johnson) - Only enforce bus numbers from bridge EA if the bridge has EA devices downstream (Subbaraya Sundeep) - Consolidate DT "dma-ranges" parsing and convert all host drivers to use shared parsing (Rob Herring) Error reporting: - Restore AER capability after resume (Mayurkumar Patel) - Add PoisonTLPBlocked AER counter (Rajat Jain) - Use for_each_set_bit() to simplify AER code (Andy Shevchenko) - Fix AER kernel-doc (Andy Shevchenko) - Add "pcie_ports=dpc-native" parameter to allow native use of DPC even if platform didn't grant control over AER (Olof Johansson) Hotplug: - Avoid returning prematurely from sysfs requests to enable or disable a PCIe hotplug slot (Lukas Wunner) - Don't disable interrupts twice when suspending hotplug ports (Mika Westerberg) - Fix deadlocks when PCIe ports are hot-removed while suspended (Mika Westerberg) Power management: - Remove unnecessary ASPM locking (Bjorn Helgaas) - Add support for disabling L1 PM Substates (Heiner Kallweit) - Allow re-enabling Clock PM after it has been disabled (Heiner Kallweit) - Add sysfs attributes for controlling ASPM link states (Heiner Kallweit) - Remove CONFIG_PCIEASPM_DEBUG, including "link_state" and "clk_ctl" sysfs files (Heiner Kallweit) - Avoid AMD FCH XHCI USB PME# from D0 defect that prevents wakeup on USB 2.0 or 1.1 connect events (Kai-Heng Feng) - Move power state check out of pci_msi_supported() (Bjorn Helgaas) - Fix incorrect MSI-X masking on resume and revert related nvme quirk for Kingston NVME SSD running FW E8FK11.T (Jian-Hong Pan) - Always return devices to D0 when thawing to fix hibernation with drivers like mlx4 that used legacy power management (previously we only did it for drivers with new power management ops) (Dexuan Cui) - Clear PCIe PME Status even for legacy power management (Bjorn Helgaas) - Fix PCI PM documentation errors (Bjorn Helgaas) - Use dev_printk() for more power management messages (Bjorn Helgaas) - Apply D2 delay as milliseconds, not microseconds (Bjorn Helgaas) - Convert xen-platform from legacy to generic power management (Bjorn Helgaas) - Removed unused .resume_early() and .suspend_late() legacy power management hooks (Bjorn Helgaas) - Rearrange power management code for clarity (Rafael J. Wysocki) - Decode power states more clearly ("4" or "D4" really refers to "D3cold") (Bjorn Helgaas) - Notice when reading PM Control register returns an error (~0) instead of interpreting it as being in D3hot (Bjorn Helgaas) - Add missing link delays required by the PCIe spec (Mika Westerberg) Virtualization: - Move pci_prg_resp_pasid_required() to CONFIG_PCI_PRI (Bjorn Helgaas) - Allow VFs to use PRI (the PF PRI is shared by the VFs, but the code previously didn't recognize that) (Kuppuswamy Sathyanarayanan) - Allow VFs to use PASID (the PF PASID capability is shared by the VFs, but the code previously didn't recognize that) (Kuppuswamy Sathyanarayanan) - Disconnect PF and VF ATS enablement, since ATS in PFs and associated VFs can be enabled independently (Kuppuswamy Sathyanarayanan) - Cache PRI and PASID capability offsets (Kuppuswamy Sathyanarayanan) - Cache the PRI PRG Response PASID Required bit (Bjorn Helgaas) - Consolidate ATS declarations in linux/pci-ats.h (Krzysztof Wilczynski) - Remove unused PRI and PASID stubs (Bjorn Helgaas) - Removed unnecessary EXPORT_SYMBOL_GPL() from ATS, PRI, and PASID interfaces that are only used by built-in IOMMU drivers (Bjorn Helgaas) - Hide PRI and PASID state restoration functions used only inside the PCI core (Bjorn Helgaas) - Add a DMA alias quirk for the Intel VCA NTB (Slawomir Pawlowski) - Serialize sysfs sriov_numvfs reads vs writes (Pierre Crégut) - Update Cavium ACS quirk for ThunderX2 and ThunderX3 (George Cherian) - Fix the UPDCR register address in the Intel ACS quirk (Steffen Liebergeld) - Unify ACS quirk implementations (Bjorn Helgaas) Amlogic Meson host bridge driver: - Fix meson PERST# GPIO polarity problem (Remi Pommarel) - Add DT bindings for Amlogic Meson G12A (Neil Armstrong) - Fix meson clock names to match DT bindings (Neil Armstrong) - Add meson support for Amlogic G12A SoC with separate shared PHY (Neil Armstrong) - Add meson extended PCIe PHY functions for Amlogic G12A USB3+PCIe combo PHY (Neil Armstrong) - Add arm64 DT for Amlogic G12A PCIe controller node (Neil Armstrong) - Add commented-out description of VIM3 USB3/PCIe mux in arm64 DT (Neil Armstrong) Broadcom iProc host bridge driver: - Invalidate iProc PAXB address mapping before programming it (Abhishek Shah) - Fix iproc-msi and mvebu __iomem annotations (Ben Dooks) Cadence host bridge driver: - Refactor Cadence PCIe host controller to use as a library for both host and endpoint (Tom Joseph) Freescale Layerscape host bridge driver: - Add layerscape LS1028a support (Xiaowei Bao) Intel VMD host bridge driver: - Add VMD bus 224-255 restriction decode (Jon Derrick) - Add VMD 8086:9A0B device ID (Jon Derrick) - Remove Keith from VMD maintainer list (Keith Busch) Marvell ARMADA 3700 / Aardvark host bridge driver: - Use LTSSM state to build link training flag since Aardvark doesn't implement the Link Training bit (Remi Pommarel) - Delay before training Aardvark link in case PERST# was asserted before the driver probe (Remi Pommarel) - Fix Aardvark issues with Root Control reads and writes (Remi Pommarel) - Don't rely on jiffies in Aardvark config access path since interrupts may be disabled (Remi Pommarel) - Fix Aardvark big-endian support (Grzegorz Jaszczyk) Marvell ARMADA 370 / XP host bridge driver: - Make mvebu_pci_bridge_emul_ops static (Ben Dooks) Microsoft Hyper-V host bridge driver: - Add hibernation support for Hyper-V virtual PCI devices (Dexuan Cui) - Track Hyper-V pci_protocol_version per-hbus, not globally (Dexuan Cui) - Avoid kmemleak false positive on hv hbus buffer (Dexuan Cui) Mobiveil host bridge driver: - Change mobiveil csr_read()/write() function names that conflict with riscv arch functions (Kefeng Wang) NVIDIA Tegra host bridge driver: - Fix Tegra CLKREQ dependency programming (Vidya Sagar) Renesas R-Car host bridge driver: - Remove unnecessary header include from rcar (Andrew Murray) - Tighten register index checking for rcar inbound range programming (Marek Vasut) - Fix rcar inbound range alignment calculation to improve packing of multiple entries (Marek Vasut) - Update rcar MACCTLR setting to match documentation (Yoshihiro Shimoda) - Clear bit 0 of MACCTLR before PCIETCTLR.CFINIT per manual (Yoshihiro Shimoda) - Add Marek Vasut and Yoshihiro Shimoda as R-Car maintainers (Simon Horman) Rockchip host bridge driver: - Make rockchip 0V9 and 1V8 power regulators non-optional (Robin Murphy) Socionext UniPhier host bridge driver: - Set uniphier to host (RC) mode always (Kunihiko Hayashi) Endpoint drivers: - Fix endpoint driver sign extension problem when shifting page number to phys_addr_t (Alan Mikhak) Misc: - Add NumaChip SPDX header (Krzysztof Wilczynski) - Replace EXTRA_CFLAGS with ccflags-y (Krzysztof Wilczynski) - Remove unused includes (Krzysztof Wilczynski) - Removed unused sysfs attribute groups (Ben Dooks) - Remove PTM and ASPM dependencies on PCIEPORTBUS (Bjorn Helgaas) - Add PCIe Link Control 2 register field definitions to replace magic numbers in AMDGPU and Radeon CIK/SI (Bjorn Helgaas) - Fix incorrect Link Control 2 Transmit Margin usage in AMDGPU and Radeon CIK/SI PCIe Gen3 link training (Bjorn Helgaas) - Use pcie_capability_read_word() instead of pci_read_config_word() in AMDGPU and Radeon CIK/SI (Frederick Lawler) - Remove unused pci_irq_get_node() Greg Kroah-Hartman) - Make asm/msi.h mandatory and simplify PCI_MSI_IRQ_DOMAIN Kconfig (Palmer Dabbelt, Michal Simek) - Read all 64 bits of Switchtec part_event_bitmap (Logan Gunthorpe) - Fix erroneous intel-iommu dependency on CONFIG_AMD_IOMMU (Bjorn Helgaas) - Fix bridge emulation big-endian support (Grzegorz Jaszczyk) - Fix dwc find_next_bit() usage (Niklas Cassel) - Fix pcitest.c fd leak (Hewenliang) - Fix typos and comments (Bjorn Helgaas) - Fix Kconfig whitespace errors (Krzysztof Kozlowski)" * tag 'pci-v5.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (160 commits) PCI: Remove PCI_MSI_IRQ_DOMAIN architecture whitelist asm-generic: Make msi.h a mandatory include/asm header Revert "nvme: Add quirk for Kingston NVME SSD running FW E8FK11.T" PCI/MSI: Fix incorrect MSI-X masking on resume PCI/MSI: Move power state check out of pci_msi_supported() PCI/MSI: Remove unused pci_irq_get_node() PCI: hv: Avoid a kmemleak false positive caused by the hbus buffer PCI: hv: Change pci_protocol_version to per-hbus PCI: hv: Add hibernation support PCI: hv: Reorganize the code in preparation of hibernation MAINTAINERS: Remove Keith from VMD maintainer PCI/ASPM: Remove PCIEASPM_DEBUG Kconfig option and related code PCI/ASPM: Add sysfs attributes for controlling ASPM link states PCI: Fix indentation drm/radeon: Prefer pcie_capability_read_word() drm/radeon: Replace numbers with PCI_EXP_LNKCTL2 definitions drm/radeon: Correct Transmit Margin masks drm/amdgpu: Prefer pcie_capability_read_word() PCI: uniphier: Set mode register to host mode drm/amdgpu: Replace numbers with PCI_EXP_LNKCTL2 definitions ...
2019-12-03Merge tag 'rtc-5.5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "A lot of unnecessary code removal in here that ends up decreasing the number of lines in the subsystem. The ds1343 and ds1347 drivers got cleaned up. The rest are the usual fixes and new features. Subsystem: - fix warnings and errors with make W=1 - UIE are now disabled while setting the RTC time - UIE are now disallowed when the RTC time is not set. Drivers: - remove unecessary .remove callbacks - Set RTC range for cros-ec, ds1343, ds1347, m41t80, s35390a, vt8500 - Use devm_platform_ioremap_resource where applicable - rv3028: add clock out support" * tag 'rtc-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (81 commits) rtc: Fix Kconfig indentation rtc: xgene: Remove unused struct device in struct xgene_rtc_dev rtc: sun6i: Remove struct device from sun6i_rtc_dev rtc: st-lpc: Remove struct resource from struct st_rtc rtc: pcf8523: Remove struct pcf8523 rtc: meson: remove redundant assignment to variable retries rtc: v3020: remove set but unused variable rtc: tegra: remove set but unused variable rtc: pm8xxx: update kerneldoc for struct pm8xxx_rtc rtc: m41t80: remove excess kerneldoc rtc: ds1685: fix build error with make W=1 rtc: ds1685: remove set but unused variables rtc: ds1374: remove unused variable rtc: sysfs: fix hctosys_show kerneldoc rtc: interface: fix kerneldoc comments rtc: msm6242: Remove unneeded msm6242_set()/msm6242_clear() functions rtc: msm6242: Fix reading of 10-hour digit rtc: tps65910: allow using RTC without alarm interrupt rtc: fsl-ftm-alarm: remove select FSL_RCPM and default y from Kconfig rtc: pcf8563: Constify clkout_rates ...
2019-12-02Merge branch 'linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fixes from Herbert Xu: - Fix build error in crypto lib code when crypto API is off - Fix NULL/error check in hisilicon - Fix Kconfig-related build error in talitos * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: hisilicon - fix a NULL vs IS_ERR() bug in sec_create_qp_ctx() crypto: talitos - Fix build error by selecting LIB_DES crypto: arch - conditionalize crypto api in arch glue for lib code
2019-12-01Merge tag 'y2038-cleanups-5.5' of ↵Linus Torvalds
git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground Pull y2038 cleanups from Arnd Bergmann: "y2038 syscall implementation cleanups This is a series of cleanups for the y2038 work, mostly intended for namespace cleaning: the kernel defines the traditional time_t, timeval and timespec types that often lead to y2038-unsafe code. Even though the unsafe usage is mostly gone from the kernel, having the types and associated functions around means that we can still grow new users, and that we may be missing conversions to safe types that actually matter. There are still a number of driver specific patches needed to get the last users of these types removed, those have been submitted to the respective maintainers" Link: https://lore.kernel.org/lkml/20191108210236.1296047-1-arnd@arndb.de/ * tag 'y2038-cleanups-5.5' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground: (26 commits) y2038: alarm: fix half-second cut-off y2038: ipc: fix x32 ABI breakage y2038: fix typo in powerpc vdso "LOPART" y2038: allow disabling time32 system calls y2038: itimer: change implementation to timespec64 y2038: move itimer reset into itimer.c y2038: use compat_{get,set}_itimer on alpha y2038: itimer: compat handling to itimer.c y2038: time: avoid timespec usage in settimeofday() y2038: timerfd: Use timespec64 internally y2038: elfcore: Use __kernel_old_timeval for process times y2038: make ns_to_compat_timeval use __kernel_old_timeval y2038: socket: use __kernel_old_timespec instead of timespec y2038: socket: remove timespec reference in timestamping y2038: syscalls: change remaining timeval to __kernel_old_timeval y2038: rusage: use __kernel_old_timeval y2038: uapi: change __kernel_time_t to __kernel_old_time_t y2038: stat: avoid 'time_t' in 'struct stat' y2038: ipc: remove __kernel_time_t reference from headers y2038: vdso: powerpc: avoid timespec references ...
2019-12-01Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace Pull sysctl system call removal from Eric Biederman: "As far as I can tell we have reached the point where no one enables the sysctl system call anymore. It still is enabled in a few defconfigs but they are mostly the rarely used one and in asking people about that it was more cut & paste enabled than anything else. This is single commit that just deletes code. Leaving just enough code so that the deprecated sysctl warning continues to be printed. If my analysis turns out to be wrong and someone actually cares it will be easy to revert this commit and have the system call again. There was one new xtensa defconfig in linux-next that enabled the system call this cycle and when asked about it the maintainer of the code replied that it was not enabled on purpose. As of today's linux-next tree that defconfig no longer enables the system call. What we saw in the review discussion was that if we go a step farther than my patch and mess with uapi headers there are pieces of code that won't compile, but nothing minds the system call actually disappearing from the kernel" Link: https://lore.kernel.org/lkml/201910011140.EA0181F13@keescook/ * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: sysctl: Remove the sysctl system call
2019-11-28Merge branch 'master' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux; tag 'dma-mapping-5.5' of git://git.infradead.org/users/hch/dma-mapping Pull dma-mapping updates from Christoph Hellwig: - improve dma-debug scalability (Eric Dumazet) - tiny dma-debug cleanup (Dan Carpenter) - check for vmap memory in dma_map_single (Kees Cook) - check for dma_addr_t overflows in dma-direct when using DMA offsets (Nicolas Saenz Julienne) - switch the x86 sta2x11 SOC to use more generic DMA code (Nicolas Saenz Julienne) - fix arm-nommu dma-ranges handling (Vladimir Murzin) - use __initdata in CMA (Shyam Saini) - replace the bus dma mask with a limit (Nicolas Saenz Julienne) - merge the remapping helpers into the main dma-direct flow (me) - switch xtensa to the generic dma remap handling (me) - various cleanups around dma_capable (me) - remove unused dev arguments to various dma-noncoherent helpers (me) * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux: * tag 'dma-mapping-5.5' of git://git.infradead.org/users/hch/dma-mapping: (22 commits) dma-mapping: treat dev->bus_dma_mask as a DMA limit dma-direct: exclude dma_direct_map_resource from the min_low_pfn check dma-direct: don't check swiotlb=force in dma_direct_map_resource dma-debug: clean up put_hash_bucket() powerpc: remove support for NULL dev in __phys_to_dma / __dma_to_phys dma-direct: avoid a forward declaration for phys_to_dma dma-direct: unify the dma_capable definitions dma-mapping: drop the dev argument to arch_sync_dma_for_* x86/PCI: sta2x11: use default DMA address translation dma-direct: check for overflows on 32 bit DMA addresses dma-debug: increase HASH_SIZE dma-debug: reorder struct dma_debug_entry fields xtensa: use the generic uncached segment support dma-mapping: merge the generic remapping helpers into dma-direct dma-direct: provide mmap and get_sgtable method overrides dma-direct: remove the dma_handle argument to __dma_direct_alloc_pages dma-direct: remove __dma_direct_free_pages usb: core: Remove redundant vmap checks kernel: dma-contiguous: mark CMA parameters __initdata/__initconst dma-debug: add a schedule point in debug_dma_dump_mappings() ...
2019-11-27Merge tag 'trace-v5.5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing updates from Steven Rostedt: "New tracing features: - New PERMANENT flag to ftrace_ops when attaching a callback to a function. As /proc/sys/kernel/ftrace_enabled when set to zero will disable all attached callbacks in ftrace, this has a detrimental impact on live kernel tracing, as it disables all that it patched. If a ftrace_ops is registered to ftrace with the PERMANENT flag set, it will prevent ftrace_enabled from being disabled, and if ftrace_enabled is already disabled, it will prevent a ftrace_ops with PREMANENT flag set from being registered. - New register_ftrace_direct(). As eBPF would like to register its own trampolines to be called by the ftrace nop locations directly, without going through the ftrace trampoline, this function has been added. This allows for eBPF trampolines to live along side of ftrace, perf, kprobe and live patching. It also utilizes the ftrace enabled_functions file that keeps track of functions that have been modified in the kernel, to allow for security auditing. - Allow for kernel internal use of ftrace instances. Subsystems in the kernel can now create and destroy their own tracing instances which allows them to have their own tracing buffer, and be able to record events without worrying about other users from writing over their data. - New seq_buf_hex_dump() that lets users use the hex_dump() in their seq_buf usage. - Notifications now added to tracing_max_latency to allow user space to know when a new max latency is hit by one of the latency tracers. - Wider spread use of generic compare operations for use of bsearch and friends. - More synthetic event fields may be defined (32 up from 16) - Use of xarray for architectures with sparse system calls, for the system call trace events. This along with small clean ups and fixes" * tag 'trace-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (51 commits) tracing: Enable syscall optimization for MIPS tracing: Use xarray for syscall trace events tracing: Sample module to demonstrate kernel access to Ftrace instances. tracing: Adding new functions for kernel access to Ftrace instances tracing: Fix Kconfig indentation ring-buffer: Fix typos in function ring_buffer_producer ftrace: Use BIT() macro ftrace: Return ENOTSUPP when DYNAMIC_FTRACE_WITH_DIRECT_CALLS is not configured ftrace: Rename ftrace_graph_stub to ftrace_stub_graph ftrace: Add a helper function to modify_ftrace_direct() to allow arch optimization ftrace: Add helper find_direct_entry() to consolidate code ftrace: Add another check for match in register_ftrace_direct() ftrace: Fix accounting bug with direct->count in register_ftrace_direct() ftrace/selftests: Fix spelling mistake "wakeing" -> "waking" tracing: Increase SYNTH_FIELDS_MAX for synthetic_events ftrace/samples: Add a sample module that implements modify_ftrace_direct() ftrace: Add modify_ftrace_direct() tracing: Add missing "inline" in stub function of latency_fsnotify() tracing: Remove stray tab in TRACE_EVAL_MAP_FILE's help text tracing: Use seq_buf_hex_dump() to dump buffers ...
2019-11-27Merge tag 'staging-5.5-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging / iio updates from Greg KH: "Here is the big staging and iio set of patches for the 5.5-rc1 release. It's the usual huge collection of cleanup patches all over the drivers/staging/ area, along with a new staging driver, and a bunch of new IIO drivers as well. Full details are in the shortlog, but all of these have been in linux-next for a long time with no reported issues" * tag 'staging-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (548 commits) staging: vchiq: Have vchiq_dump_* functions return an error code staging: vchiq: Refactor indentation in vchiq_dump_* functions staging: fwserial: Fix Kconfig indentation (seven spaces) staging: vchiq_dump: Replace min with min_t staging: vchiq: Fix block comment format in vchiq_dump() staging: octeon: indent with tabs instead of spaces staging: comedi: usbduxfast: usbduxfast_ai_cmdtest rounding error staging: most: core: remove sysfs attr remove_link staging: vc04: Fix Kconfig indentation staging: pi433: Fix Kconfig indentation staging: nvec: Fix Kconfig indentation staging: most: Fix Kconfig indentation staging: fwserial: Fix Kconfig indentation staging: fbtft: Fix Kconfig indentation fbtft: Drop OF dependency fbtft: Make use of device property API fbtft: Drop useless #ifdef CONFIG_OF and dead code fbtft: Describe function parameters in kernel-doc fbtft: Make sure string is NULL terminated staging: rtl8723bs: remove set but not used variable 'change', 'pos' ...
2019-11-27crypto: arch - conditionalize crypto api in arch glue for lib codeJason A. Donenfeld
For glue code that's used by Zinc, the actual Crypto API functions might not necessarily exist, and don't need to exist either. Before this patch, there are valid build configurations that lead to a unbuildable kernel. This fixes it to conditionalize those symbols on the existence of the proper config entry. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-11-26asm-generic: Make msi.h a mandatory include/asm headerMichal Simek
msi.h is generic for all architectures except x86, which has its own version. Enabling MSI by adding msi.h to every architecture's Kbuild is just an additional step which doesn't need to be done. Make msi.h mandatory in the asm-generic/Kbuild so we don't have to do it for each architecture. Suggested-by: Christoph Hellwig <hch@infradead.org> Link: https://lore.kernel.org/r/c991669e29a79b1a8e28c3b4b3a125801a693de8.1571983829.git.michal.simek@xilinx.com Tested-by: Paul Walmsley <paul.walmsley@sifive.com> # build only, rv32/rv64 Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Waiman Long <longman@redhat.com> Acked-by: Paul Walmsley <paul.walmsley@sifive.com> # arch/riscv
2019-11-26sysctl: Remove the sysctl system callEric W. Biederman
This system call has been deprecated almost since it was introduced, and in a survey of the linux distributions I can no longer find any of them that enable CONFIG_SYSCTL_SYSCALL. The only indication that I can find that anyone might care is that a few of the defconfigs in the kernel enable CONFIG_SYSCTL_SYSCALL. However this appears in only 31 of 414 defconfigs in the kernel, so I suspect this symbols presence is simply because it is harmless to include rather than because it is necessary. As there appear to be no users of the sysctl system call, remove the code. As this removes one of the few uses of the internal kernel mount of proc I hope this allows for even more simplifications of the proc filesystem. Cc: Alex Smith <alex.smith@imgtec.com> Cc: Anders Berg <anders.berg@lsi.com> Cc: Apelete Seketeli <apelete@seketeli.net> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Chee Nouk Phoon <cnphoon@altera.com> Cc: Chris Zankel <chris@zankel.net> Cc: Christian Ruppert <christian.ruppert@abilis.com> Cc: Greg Ungerer <gerg@uclinux.org> Cc: Harvey Hunt <harvey.hunt@imgtec.com> Cc: Helge Deller <deller@gmx.de> Cc: Hongliang Tao <taohl@lemote.com> Cc: Hua Yan <yanh@lemote.com> Cc: Huacai Chen <chenhc@lemote.com> Cc: John Crispin <blogic@openwrt.org> Cc: Jonas Jensen <jonas.jensen@gmail.com> Cc: Josh Boyer <jwboyer@gmail.com> Cc: Jun Nie <jun.nie@linaro.org> Cc: Kevin Hilman <khilman@linaro.org> Cc: Kevin Wells <kevin.wells@nxp.com> Cc: Kumar Gala <galak@codeaurora.org> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Ley Foon Tan <lftan@altera.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Markos Chandras <markos.chandras@imgtec.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Noam Camus <noamc@ezchip.com> Cc: Olof Johansson <olof@lixom.net> Cc: Paul Burton <paul.burton@mips.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Phil Edworthy <phil.edworthy@renesas.com> Cc: Pierrick Hascoet <pierrick.hascoet@abilis.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Roland Stigge <stigge@antcom.de> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Scott Telford <stelford@cadence.com> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Cc: Tanmay Inamdar <tinamdar@apm.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Andi Kleen <ak@linux.intel.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2019-11-26Merge branch 'x86-asm-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 asm updates from Ingo Molnar: "The main changes in this cycle were: - Cross-arch changes to move the linker sections for NOTES and EXCEPTION_TABLE into the RO_DATA area, where they belong on most architectures. (Kees Cook) - Switch the x86 linker fill byte from x90 (NOP) to 0xcc (INT3), to trap jumps into the middle of those padding areas instead of sliding execution. (Kees Cook) - A thorough cleanup of symbol definitions within x86 assembler code. The rather randomly named macros got streamlined around a (hopefully) straightforward naming scheme: SYM_START(name, linkage, align...) SYM_END(name, sym_type) SYM_FUNC_START(name) SYM_FUNC_END(name) SYM_CODE_START(name) SYM_CODE_END(name) SYM_DATA_START(name) SYM_DATA_END(name) etc - with about three times of these basic primitives with some label, local symbol or attribute variant, expressed via postfixes. No change in functionality intended. (Jiri Slaby) - Misc other changes, cleanups and smaller fixes" * 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (67 commits) x86/entry/64: Remove pointless jump in paranoid_exit x86/entry/32: Remove unused resume_userspace label x86/build/vdso: Remove meaningless CFLAGS_REMOVE_*.o m68k: Convert missed RODATA to RO_DATA x86/vmlinux: Use INT3 instead of NOP for linker fill bytes x86/mm: Report actual image regions in /proc/iomem x86/mm: Report which part of kernel image is freed x86/mm: Remove redundant address-of operators on addresses xtensa: Move EXCEPTION_TABLE to RO_DATA segment powerpc: Move EXCEPTION_TABLE to RO_DATA segment parisc: Move EXCEPTION_TABLE to RO_DATA segment microblaze: Move EXCEPTION_TABLE to RO_DATA segment ia64: Move EXCEPTION_TABLE to RO_DATA segment h8300: Move EXCEPTION_TABLE to RO_DATA segment c6x: Move EXCEPTION_TABLE to RO_DATA segment arm64: Move EXCEPTION_TABLE to RO_DATA segment alpha: Move EXCEPTION_TABLE to RO_DATA segment x86/vmlinux: Move EXCEPTION_TABLE to RO_DATA segment x86/vmlinux: Actually use _etext for the end of the text segment vmlinux.lds.h: Allow EXCEPTION_TABLE to live in RO_DATA ...
2019-11-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
Pull crypto updates from Herbert Xu: "API: - Add library interfaces of certain crypto algorithms for WireGuard - Remove the obsolete ablkcipher and blkcipher interfaces - Move add_early_randomness() out of rng_mutex Algorithms: - Add blake2b shash algorithm - Add blake2s shash algorithm - Add curve25519 kpp algorithm - Implement 4 way interleave in arm64/gcm-ce - Implement ciphertext stealing in powerpc/spe-xts - Add Eric Biggers's scalar accelerated ChaCha code for ARM - Add accelerated 32r2 code from Zinc for MIPS - Add OpenSSL/CRYPTOGRAMS poly1305 implementation for ARM and MIPS Drivers: - Fix entropy reading failures in ks-sa - Add support for sam9x60 in atmel - Add crypto accelerator for amlogic GXL - Add sun8i-ce Crypto Engine - Add sun8i-ss cryptographic offloader - Add a host of algorithms to inside-secure - Add NPCM RNG driver - add HiSilicon HPRE accelerator - Add HiSilicon TRNG driver" * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (285 commits) crypto: vmx - Avoid weird build failures crypto: lib/chacha20poly1305 - use chacha20_crypt() crypto: x86/chacha - only unregister algorithms if registered crypto: chacha_generic - remove unnecessary setkey() functions crypto: amlogic - enable working on big endian kernel crypto: sun8i-ce - enable working on big endian crypto: mips/chacha - select CRYPTO_SKCIPHER, not CRYPTO_BLKCIPHER hwrng: ks-sa - Enable COMPILE_TEST crypto: essiv - remove redundant null pointer check before kfree crypto: atmel-aes - Change data type for "lastc" buffer crypto: atmel-tdes - Set the IV after {en,de}crypt crypto: sun4i-ss - fix big endian issues crypto: sun4i-ss - hide the Invalid keylen message crypto: sun4i-ss - use crypto_ahash_digestsize crypto: sun4i-ss - remove dependency on not 64BIT crypto: sun4i-ss - Fix 64-bit size_t warnings on sun4i-ss-hash.c MAINTAINERS: Add maintainer for HiSilicon SEC V2 driver crypto: hisilicon - add DebugFS for HiSilicon SEC Documentation: add DebugFS doc for HiSilicon SEC crypto: hisilicon - add SRIOV for HiSilicon SEC ...
2019-11-25Merge tag 'mips_5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linuxLinus Torvalds
Pull MIPS updates from Paul Burton: "The main MIPS changes for 5.5: - Atomics-related code sees some rework & cleanup, most notably allowing Loongson LL/SC errata workarounds to be more bulletproof & their correctness to be checked at build time. - Command line setup code is simplified somewhat, resolving various corner cases. - MIPS kernels can now be built with kcov code coverage support. - We can now build with CONFIG_FORTIFY_SOURCE=y. - Miscellaneous cleanups. And some platform specific changes: - We now disable some broken TLB functionality on certain Ingenic systems, and JZ4780 systems gain some devicetree nodes to support more devices. - Loongson support sees a number of cleanups, and we gain initial support for Loongson 3A R4 systems. - We gain support for MediaTek MT7688-based GARDENA Smart Gateway systems. - SGI IP27 (Origin 2*) see a number of fixes, cleanups & simplifications. - SGI IP30 (Octane) systems are now supported" * tag 'mips_5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (107 commits) MIPS: SGI-IP27: Enable ethernet phy on second Origin 200 module MIPS: PCI: Fix fake subdevice ID for IOC3 MIPS: Ingenic: Disable abandoned HPTLB function. MIPS: PCI: remember nasid changed by set interrupt affinity MIPS: SGI-IP27: Fix crash, when CPUs are disabled via nr_cpus parameter mips: add support for folded p4d page tables mips: drop __pXd_offset() macros that duplicate pXd_index() ones mips: fix build when "48 bits virtual memory" is enabled MIPS: math-emu: Reuse name array in debugfs_fpuemu() MIPS: allow building with kcov coverage MIPS: Loongson64: Drop setup_pcimap MIPS: Loongson2ef: Convert to early_printk_8250 MIPS: Drop CPU_SUPPORTS_UNCACHED_ACCELERATED MIPS: Loongson{2ef, 32, 64} convert to generic fw cmdline MIPS: Drop pmon.h MIPS: Loongson: Unify LOONGSON3/LOONGSON64 Kconfig usage MIPS: Loongson: Rename LOONGSON1 to LOONGSON32 MIPS: Loongson: Fix return value of loongson_hwmon_init MIPS: add support for SGI Octane (IP30) MIPS: PCI: make phys_to_dma/dma_to_phys for pci-xtalk-bridge common ...
2019-11-23MIPS: SGI-IP27: Enable ethernet phy on second Origin 200 moduleThomas Bogendoerfer
PROM only enables ethernet PHY on first Origin 200 module, so we must do it ourselves for the second module. Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: Jakub Kicinski <jakub.kicinski@netronome.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Burton <paul.burton@mips.com> Cc: James Hogan <jhogan@kernel.org> Cc: Lee Jones <lee.jones@linaro.org> Cc: David S. Miller <davem@davemloft.net> Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jiri Slaby <jslaby@suse.com> Cc: linux-doc@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-mips@vger.kernel.org Cc: netdev@vger.kernel.org Cc: linux-rtc@vger.kernel.org Cc: linux-serial@vger.kernel.org
2019-11-23MIPS: PCI: Fix fake subdevice ID for IOC3Thomas Bogendoerfer
Generation of fake subdevice ID had vendor and device ID swapped. Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: Jakub Kicinski <jakub.kicinski@netronome.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Burton <paul.burton@mips.com> Cc: James Hogan <jhogan@kernel.org> Cc: Lee Jones <lee.jones@linaro.org> Cc: David S. Miller <davem@davemloft.net> Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jiri Slaby <jslaby@suse.com> Cc: linux-doc@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-mips@vger.kernel.org Cc: netdev@vger.kernel.org Cc: linux-rtc@vger.kernel.org Cc: linux-serial@vger.kernel.org
2019-11-22tracing: Enable syscall optimization for MIPSHassan Naveed
Since MIPS architecture has a sparse syscall array, select the HAVE_SPARSE_SYSCALL_NR to save space. Link: http://lkml.kernel.org/r/20191115234314.21599-2-hnaveed@wavecomp.com Signed-off-by: Hassan Naveed <hnaveed@wavecomp.com> Reviewed-by: Paul Burton <paulburton@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2019-11-22MIPS: Ingenic: Disable abandoned HPTLB function.Zhou Yanjie
JZ4760/JZ4770/JZ4775/X1000/X1500 has an abandoned huge page tlb, this mode is not compatible with the MIPS standard, it will cause tlbmiss and into an infinite loop (line 21 in the tlb-funcs.S) when starting the init process. write 0xa9000000 to cp0 register 5 sel 4 to disable this function to prevent getting stuck. Confirmed by Ingenic, this operation will not adversely affect processors without HPTLB function. Signed-off-by: Zhou Yanjie <zhouyanjie@zoho.com> Acked-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: ralf@linux-mips.org Cc: jhogan@kernel.org Cc: jiaxun.yang@flygoat.com Cc: gregkh@linuxfoundation.org Cc: malat@debian.org Cc: tglx@linutronix.de Cc: chenhc@lemote.com
2019-11-22MIPS: PCI: remember nasid changed by set interrupt affinityThomas Bogendoerfer
When changing interrupt affinity remember the possible changed nasid, otherwise an interrupt deactivate/activate sequence will incorrectly setup interrupt. Fixes: e6308b6d35ea ("MIPS: SGI-IP27: abstract chipset irq from bridge") Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
2019-11-22MIPS: SGI-IP27: Fix crash, when CPUs are disabled via nr_cpus parameterThomas Bogendoerfer
If number of CPUs are limited by the kernel commandline parameter nr_cpus assignment of interrupts accourding to numa rules might not be possibe. As a fallback use one of the online CPUs as interrupt destination. Fixes: 69a07a41d908 ("MIPS: SGI-IP27: rework HUB interrupts") Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
2019-11-22mips: add support for folded p4d page tablesMike Rapoport
Implement primitives necessary for the 4th level folding, add walks of p4d level where appropriate, replace 5leve-fixup.h with pgtable-nop4d.h and drop usage of __ARCH_USE_5LEVEL_HACK. Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org Cc: Mike Rapoport <rppt@kernel.org>
2019-11-22mips: drop __pXd_offset() macros that duplicate pXd_index() onesMike Rapoport
The __pXd_offset() macros are identical to the pXd_index() macros and there is no point to keep both of them. All architectures define and use pXd_index() so let's keep only those to make mips consistent with the rest of the kernel. Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org Cc: Mike Rapoport <rppt@kernel.org>
2019-11-22mips: fix build when "48 bits virtual memory" is enabledMike Rapoport
With CONFIG_MIPS_VA_BITS_48=y the build fails miserably: CC arch/mips/kernel/asm-offsets.s In file included from arch/mips/include/asm/pgtable.h:644, from include/linux/mm.h:99, from arch/mips/kernel/asm-offsets.c:15: include/asm-generic/pgtable.h:16:2: error: #error CONFIG_PGTABLE_LEVELS is not consistent with __PAGETABLE_{P4D,PUD,PMD}_FOLDED #error CONFIG_PGTABLE_LEVELS is not consistent with __PAGETABLE_{P4D,PUD,PMD}_FOLDED ^~~~~ include/asm-generic/pgtable.h:390:28: error: unknown type name 'p4d_t'; did you mean 'pmd_t'? static inline int p4d_same(p4d_t p4d_a, p4d_t p4d_b) ^~~~~ pmd_t [ ... more such errors ... ] scripts/Makefile.build:99: recipe for target 'arch/mips/kernel/asm-offsets.s' failed make[2]: *** [arch/mips/kernel/asm-offsets.s] Error 1 This happens because when CONFIG_MIPS_VA_BITS_48 enables 4th level of the page tables, but neither pgtable-nop4d.h nor 5level-fixup.h are included to cope with the 5th level. Replace #ifdef conditions around includes of the pgtable-nop{m,u}d.h with explicit CONFIG_PGTABLE_LEVELS and add include of 5level-fixup.h for the case when CONFIG_PGTABLE_LEVELS==4 Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org Cc: Mike Rapoport <rppt@kernel.org>
2019-11-21dma-mapping: treat dev->bus_dma_mask as a DMA limitNicolas Saenz Julienne
Using a mask to represent bus DMA constraints has a set of limitations. The biggest one being it can only hold a power of two (minus one). The DMA mapping code is already aware of this and treats dev->bus_dma_mask as a limit. This quirk is already used by some architectures although still rare. With the introduction of the Raspberry Pi 4 we've found a new contender for the use of bus DMA limits, as its PCIe bus can only address the lower 3GB of memory (of a total of 4GB). This is impossible to represent with a mask. To make things worse the device-tree code rounds non power of two bus DMA limits to the next power of two, which is unacceptable in this case. In the light of this, rename dev->bus_dma_mask to dev->bus_dma_limit all over the tree and treat it as such. Note that dev->bus_dma_limit should contain the higher accessible DMA address. Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Reviewed-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2019-11-20dma-direct: unify the dma_capable definitionsChristoph Hellwig
Currently each architectures that wants to override dma_to_phys and phys_to_dma also has to provide dma_capable. But there isn't really any good reason for that. powerpc and mips just have copies of the generic one minus the latests fix, and the arm one was the inspiration for said fix, but misses the bus_dma_mask handling. Make all architectures use the generic version instead. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
2019-11-20dma-mapping: drop the dev argument to arch_sync_dma_for_*Christoph Hellwig
These are pure cache maintainance routines, so drop the unused struct device argument. Signed-off-by: Christoph Hellwig <hch@lst.de> Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2019-11-17crypto: mips/poly1305 - incorporate OpenSSL/CRYPTOGAMS optimized implementationArd Biesheuvel
This is a straight import of the OpenSSL/CRYPTOGAMS Poly1305 implementation for MIPS authored by Andy Polyakov, a prior 64-bit only version of which has been contributed by him to the OpenSSL project. The file 'poly1305-mips.pl' is taken straight from this upstream GitHub repository [0] at commit d22ade312a7af958ec955620b0d241cf42c37feb, and already contains all the changes required to build it as part of a Linux kernel module. [0] https://github.com/dot-asm/cryptogams Co-developed-by: Andy Polyakov <appro@cryptogams.org> Signed-off-by: Andy Polyakov <appro@cryptogams.org> Co-developed-by: René van Dorst <opensource@vdorst.com> Signed-off-by: René van Dorst <opensource@vdorst.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-11-17crypto: mips/chacha - wire up accelerated 32r2 code from ZincArd Biesheuvel
This integrates the accelerated MIPS 32r2 implementation of ChaCha into both the API and library interfaces of the kernel crypto stack. The significance of this is that, in addition to becoming available as an accelerated library implementation, it can also be used by existing crypto API code such as Adiantum (for block encryption on ultra low performance cores) or IPsec using chacha20poly1305. These are use cases that have already opted into using the abstract crypto API. In order to support Adiantum, the core assembler routine has been adapted to take the round count as a function argument rather than hardcoding it to 20. Co-developed-by: René van Dorst <opensource@vdorst.com> Signed-off-by: René van Dorst <opensource@vdorst.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-11-17crypto: mips/chacha - import 32r2 ChaCha code from ZincJason A. Donenfeld
This imports the accelerated MIPS 32r2 ChaCha20 implementation from the Zinc patch set. Co-developed-by: René van Dorst <opensource@vdorst.com> Signed-off-by: René van Dorst <opensource@vdorst.com> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-11-15Merge tag 'mips_fixes_5.4_4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux Pull MIPS fixes from Paul Burton: "A fix and simplification for SGI IP27 exception handlers, and a small MAINTAINERS update for Broadcom MIPS systems" * tag 'mips_fixes_5.4_4' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: MAINTAINERS: Remove Kevin as maintainer of BMIPS generic platforms MIPS: SGI-IP27: fix exception handler replication
2019-11-15y2038: elfcore: Use __kernel_old_timeval for process timesArnd Bergmann
We store elapsed time for a crashed process in struct elf_prstatus using 'timeval' structures. Once glibc starts using 64-bit time_t, this becomes incompatible with the kernel's idea of timeval since the structure layout no longer matches on 32-bit architectures. This changes the definition of the elf_prstatus structure to use __kernel_old_timeval instead, which is hardcoded to the currently used binary layout. There is no risk of overflow in y2038 though, because the time values are all relative times, and can store up to 68 years of process elapsed time. There is a risk of applications breaking at build time when they use the new kernel headers and expect the type to be exactly 'timeval' rather than a structure that has the same fields as before. Those applications have to be modified to deal with 64-bit time_t anyway. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-11-15y2038: stat: avoid 'time_t' in 'struct stat'Arnd Bergmann
The time_t definition may differ between user space and kernel space, so replace time_t with an unambiguous 'long' for the mips and sparc. The same structures also contain 'off_t', which has the same problem, so replace that as well on those two architectures and powerpc. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-11-15y2038: ipc: remove __kernel_time_t reference from headersArnd Bergmann
There are two structures based on time_t that conflict between libc and kernel: timeval and timespec. Both are now renamed to __kernel_old_timeval and __kernel_old_timespec. For time_t, the old typedef is still __kernel_time_t. There is nothing wrong with that name, but it would be nice to not use that going forward as this type is used almost only in deprecated interfaces because of the y2038 overflow. In the IPC headers (msgbuf.h, sembuf.h, shmbuf.h), __kernel_time_t is only used for the 64-bit variants, which are not deprecated. Change these to a plain 'long', which is the same type as __kernel_time_t on all 64-bit architectures anyway, to reduce the number of users of the old type. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-11-14MIPS: ralink: enable PCI support only if driver for mt7621 SoC is selectedSergio Paracuellos
Some versions of SoC MT7621 have three PCI express hosts. Some boards make use of those PCI through the staging driver mt7621-pci. Recently PCI support has been removed from MT7621 Soc kernel configuration due to a build error. This makes imposible to compile staging driver and produces a regression for gnubee based boards. Enable support for PCI again but enable it only if staging mt7621-pci driver is selected. Fixes: c4d48cf5e2f0 ("MIPS: ralink: deactivate PCI support for SOC_MT7621") Cc: Hauke Mehrtens <hauke@hauke-m.de> Cc: ralf@linux-mips.org Cc: jhogan@kernel.org Cc: john@phrozen.org Cc: NeilBrown <neil@brown.name> Cc: linux-mips@vger.kernel.org Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> Link: https://lore.kernel.org/r/20191019081233.7337-1-sergio.paracuellos@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-11MIPS: math-emu: Reuse name array in debugfs_fpuemu()Paul Burton
The FPU_STAT_CREATE_EX() macro used 114 times in debugfs_fpuemu() declares a 32 byte char array to hold the name of a debugfs file. Since each use of the macro declares a new char array out of the scope of all the other uses, we end up with an unnecessarily large stack frame of 3648 bytes (ie. 114*32) plus the size of 2 pointers (fpuemu_debugfs_base_dir & fpuemu_debugfs_inst_dir). This is enough to trigger the frame size warnings from GCC in common configurations. Avoid the unnecessary stack bloat by using a single name char array which each usage of FPU_STAT_CREATE_EX() will reinitialize via the strcpy() in adjust_instruction_counter_name(). Signed-off-by: Paul Burton <paulburton@kernel.org> Reported-by: kbuild test robot <lkp@intel.com> URL: https://lore.kernel.org/linux-mips/201911090929.xvXYuHUz%25lkp@intel.com/
2019-11-11MIPS: allow building with kcov coverageAlexey Khoroshilov
Add ARCH_HAS_KCOV and HAVE_GCC_PLUGINS to MIPS config. Disable instrumentation of vdso to avoid build failure. Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
2019-11-11MIPS: Loongson64: Drop setup_pcimapJiaxun Yang
setup_pcimap is used to setup address windows for Loongson-3 built-in PCI-X controller, but this function is never been used in the real world and lack of support in kernel. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: linux-mips@vger.kernel.org Cc: chenhe@lemote.com
2019-11-11MIPS: Loongson2ef: Convert to early_printk_8250Jiaxun Yang
early_printk.c is doing the same with early_printk_8250. Remove duplicated code. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: linux-mips@vger.kernel.org Cc: chenhe@lemote.com
2019-11-11MIPS: Drop CPU_SUPPORTS_UNCACHED_ACCELERATEDJiaxun Yang
CPU_SUPPORTS_UNCACHED_ACCELERATED was introduced when kernel can't handle writecombine remap well. Nowadays drivers can try writecombine remap by themselves so this function is nolonger needed. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: linux-mips@vger.kernel.org Cc: chenhe@lemote.com
2019-11-11MIPS: Loongson{2ef, 32, 64} convert to generic fw cmdlineJiaxun Yang
All of Loongson firmwares are passing boot cmdline/env in the manner of YAMON/PMON. Thus we can remove duplicated cmdline initialize code and convert to generic fw method. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: linux-mips@vger.kernel.org Cc: chenhe@lemote.com
2019-11-11MIPS: Drop pmon.hJiaxun Yang
There is no code still using pmon callvectors. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: linux-mips@vger.kernel.org Cc: chenhe@lemote.com
2019-11-11MIPS: Loongson: Unify LOONGSON3/LOONGSON64 Kconfig usageHuacai Chen
There are mixed LOONGSON3/LOONGSON64 usages in recently changes, let's establish some rules: 1, In Kconfig symbols, we only use CPU_LOONGSON64, MACH_LOONGSON64 and SYS_HAS_CPU_LOONGSON64, all other derived symbols use "LOONGSON3" since they all not widely-used symbols and sometimes not suitable for all 64-bit Loongson processors. E.g., we use symbols LOONGSON3_ENHANCEMENT, CPU_LOONGSON3_WORKAROUNDS, etc. 2, Hide GSx64/GSx64E in Kconfig title since it is not useful for general users. However, in the full description we use a more detailed manner. E.g., GS264/GS464/GS464E/GS464V. All Kconfig titles and descriptions of Loongson processors and machines have also been updated in this patch for consistency. Signed-off-by: Huacai Chen <chenhc@lemote.com> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: Paul Burton <paul.burton@mips.com> Cc: linux-mips@linux-mips.org Cc: linux-mips@vger.kernel.org Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Cc: Huacai Chen <chenhuacai@gmail.com>
2019-11-11MIPS: Loongson: Rename LOONGSON1 to LOONGSON32Huacai Chen
Now old Loongson-2E/2F use LOONGSON2EF and will be removed in future, newer Loongson-2/3 use LOONGSON64. So rename LOONGSON1 to LOONGSON32 will make the naming style more unified. Signed-off-by: Huacai Chen <chenhc@lemote.com> [paulburton@kernel.org: Fix checkpatch whitespace warning in irqflags.h] Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@linux-mips.org Cc: linux-mips@vger.kernel.org Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Cc: Huacai Chen <chenhuacai@gmail.com>
2019-11-11dma-direct: provide mmap and get_sgtable method overridesChristoph Hellwig
For dma-direct we know that the DMA address is an encoding of the physical address that we can trivially decode. Use that fact to provide implementations that do not need the arch_dma_coherent_to_pfn architecture hook. Note that we still can only support mmap of non-coherent memory only if the architecture provides a way to set an uncached bit in the page tables. This must be true for architectures that use the generic remap helpers, but other architectures can also manually select it. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
2019-11-04timekeeping/vsyscall: Update VDSO data unconditionallyHuacai Chen
The update of the VDSO data is depending on __arch_use_vsyscall() returning True. This is a leftover from the attempt to map the features of various architectures 1:1 into generic code. The usage of __arch_use_vsyscall() in the actual vsyscall implementations got dropped and replaced by the requirement for the architecture code to return U64_MAX if the global clocksource is not usable in the VDSO. But the __arch_use_vsyscall() check in the update code stayed which causes the VDSO data to be stale or invalid when an architecture actually implements that function and returns False when the current clocksource is not usable in the VDSO. As a consequence the VDSO implementations of clock_getres(), time(), clock_gettime(CLOCK_.*_COARSE) operate on invalid data and return bogus information. Remove the __arch_use_vsyscall() check from the VDSO update function and update the VDSO data unconditionally. [ tglx: Massaged changelog and removed the now useless implementations in asm-generic/ARM64/MIPS ] Fixes: 44f57d788e7deecb50 ("timekeeping: Provide a generic update_vsyscall() implementation") Signed-off-by: Huacai Chen <chenhc@lemote.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Andy Lutomirski <luto@kernel.org> Cc: Vincenzo Frascino <vincenzo.frascino@arm.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Paul Burton <paul.burton@mips.com> Cc: linux-mips@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/1571887709-11447-1-git-send-email-chenhc@lemote.com