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2019-03-14Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds1-1/+1
Pull networking fixes from David Miller: "More fixes in the queue: 1) Netfilter nat can erroneously register the device notifier twice, fix from Florian Westphal. 2) Use after free in nf_tables, from Pablo Neira Ayuso. 3) Parallel update of steering rule fix in mlx5 river, from Eli Britstein. 4) RX processing panic in lan743x, fix from Bryan Whitehead. 5) Use before initialization of TCP_SKB_CB, fix from Christoph Paasch. 6) Fix locking in SRIOV mode of mlx4 driver, from Jack Morgenstein. 7) Fix TX stalls in lan743x due to mishandling of interrupt ACKing modes, from Bryan Whitehead. 8) Fix infoleak in l2tp_ip6_recvmsg(), from Eric Dumazet" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (43 commits) pptp: dst_release sk_dst_cache in pptp_sock_destruct MAINTAINERS: GENET & SYSTEMPORT: Add internal Broadcom list l2tp: fix infoleak in l2tp_ip6_recvmsg() net/tls: Inform user space about send buffer availability net_sched: return correct value for *notify* functions lan743x: Fix TX Stall Issue net/mlx4_core: Fix qp mtt size calculation net/mlx4_core: Fix locking in SRIOV mode when switching between events and polling net/mlx4_core: Fix reset flow when in command polling mode mlxsw: minimal: Initialize base_mac mlxsw: core: Prevent duplication during QSFP module initialization net: dwmac-sun8i: fix a missing check of of_get_phy_mode net: sh_eth: fix a missing check of of_get_phy_mode net: 8390: fix potential NULL pointer dereferences net: fujitsu: fix a potential NULL pointer dereference net: qlogic: fix a potential NULL pointer dereference isdn: hfcpci: fix potential NULL pointer dereference Documentation: devicetree: add a new optional property for port mac address net: rocker: fix a potential NULL pointer dereference net: qlge: fix a potential NULL pointer dereference ...
2019-03-11y2038: fix socket.h header inclusionArnd Bergmann1-1/+1
Referencing the __kernel_long_t type caused some user space applications to stop compiling when they had not already included linux/posix_types.h, e.g. s/multicast.c -o ext/sockets/multicast.lo In file included from /builddir/build/BUILD/php-7.3.3/main/php.h:468, from /builddir/build/BUILD/php-7.3.3/ext/sockets/sockets.c:27: /builddir/build/BUILD/php-7.3.3/ext/sockets/sockets.c: In function 'zm_startup_sockets': /builddir/build/BUILD/php-7.3.3/ext/sockets/sockets.c:776:40: error: '__kernel_long_t' undeclared (first use in this function) 776 | REGISTER_LONG_CONSTANT("SO_SNDTIMEO", SO_SNDTIMEO, CONST_CS | CONST_PERSISTENT); It is safe to include that header here, since it only contains kernel internal types that do not conflict with other user space types. It's still possible that some related build failures remain, but those are likely to be for code that is not already y2038 safe. Reported-by: Laura Abbott <labbott@redhat.com> Fixes: a9beb86ae6e5 ("sock: Add SO_RCVTIMEO_NEW and SO_SNDTIMEO_NEW") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-07Merge tag 'char-misc-5.1-rc1' of ↵Linus Torvalds2-0/+73
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the big char/misc driver patch pull request for 5.1-rc1. The largest thing by far is the new habanalabs driver for their AI accelerator chip. For now it is in the drivers/misc directory but will probably move to a new directory soon along with other drivers of this type. Other than that, just the usual set of individual driver updates and fixes. There's an "odd" merge in here from the DRM tree that they asked me to do as the MEI driver is starting to interact with the i915 driver, and it needed some coordination. All of those patches have been properly acked by the relevant subsystem maintainers. All of these have been in linux-next with no reported issues, most for quite some time" * tag 'char-misc-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (219 commits) habanalabs: adjust Kconfig to fix build errors habanalabs: use %px instead of %p in error print habanalabs: use do_div for 64-bit divisions intel_th: gth: Fix an off-by-one in output unassigning habanalabs: fix little-endian<->cpu conversion warnings habanalabs: use NULL to initialize array of pointers habanalabs: fix little-endian<->cpu conversion warnings habanalabs: soft-reset device if context-switch fails habanalabs: print pointer using %p habanalabs: fix memory leak with CBs with unaligned size habanalabs: return correct error code on MMU mapping failure habanalabs: add comments in uapi/misc/habanalabs.h habanalabs: extend QMAN0 job timeout habanalabs: set DMA0 completion to SOB 1007 habanalabs: fix validation of WREG32 to DMA completion habanalabs: fix mmu cache registers init habanalabs: disable CPU access on timeouts habanalabs: add MMU DRAM default page mapping habanalabs: Dissociate RAZWI info from event types misc/habanalabs: adjust Kconfig to fix build errors ...
2019-03-06Merge tag 'asm-generic-5.1' of ↵Linus Torvalds1-3/+1
git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic Pull asm-generic updates from Arnd Bergmann: "Only a few small changes this time: - Michael S. Tsirkin cleans up linux/mman.h - Mike Rapoport found a typo I had originally merged another cleanup series for I/O accessors from Hugo Lefeuvre as well, but dropped it after the discussion of the barrier semantics and some conflicts. I expect this series to get merged for a later release though" * tag 'asm-generic-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: asm-generic/page.h: fix typo in #error text requiring a real asm/page.h arch: move common mmap flags to linux/mman.h drm: tweak header name x86/mpx: tweak header name
2019-03-06Merge branch 'timers-2038-for-linus' of ↵Linus Torvalds3-35/+88
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull year 2038 updates from Thomas Gleixner: "Another round of changes to make the kernel ready for 2038. After lots of preparatory work this is the first set of syscalls which are 2038 safe: 403 clock_gettime64 404 clock_settime64 405 clock_adjtime64 406 clock_getres_time64 407 clock_nanosleep_time64 408 timer_gettime64 409 timer_settime64 410 timerfd_gettime64 411 timerfd_settime64 412 utimensat_time64 413 pselect6_time64 414 ppoll_time64 416 io_pgetevents_time64 417 recvmmsg_time64 418 mq_timedsend_time64 419 mq_timedreceiv_time64 420 semtimedop_time64 421 rt_sigtimedwait_time64 422 futex_time64 423 sched_rr_get_interval_time64 The syscall numbers are identical all over the architectures" * 'timers-2038-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits) riscv: Use latest system call ABI checksyscalls: fix up mq_timedreceive and stat exceptions unicore32: Fix __ARCH_WANT_STAT64 definition asm-generic: Make time32 syscall numbers optional asm-generic: Drop getrlimit and setrlimit syscalls from default list 32-bit userspace ABI: introduce ARCH_32BIT_OFF_T config option compat ABI: use non-compat openat and open_by_handle_at variants y2038: add 64-bit time_t syscalls to all 32-bit architectures y2038: rename old time and utime syscalls y2038: remove struct definition redirects y2038: use time32 syscall names on 32-bit syscalls: remove obsolete __IGNORE_ macros y2038: syscalls: rename y2038 compat syscalls x86/x32: use time64 versions of sigtimedwait and recvmmsg timex: change syscalls to use struct __kernel_timex timex: use __kernel_timex internally sparc64: add custom adjtimex/clock_adjtime functions time: fix sys_timer_settime prototype time: Add struct __kernel_timex time: make adjtime compat handling available for 32 bit ...
2019-03-05Merge branch 'parisc-5.1-1' of ↵Linus Torvalds14-97/+101
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc updates from Helge Deller: "The most important changes in this patch set are: - DMA-related cleanups for parisc with the aim to move anything not required by drivers out of <asm/dma-mapping.h>, by Christoph Hellwig - Switch to memblock_alloc(), by Mike Rapoport - Makefile cleanups by Masahiro Yamada - Switch to bust_spinlocks(), by Sergey Senozhatsky - Improved initial SMP affinity selection for IRQs - Added IPI- and rescheduling interrupts in /proc/interrupts output" * 'parisc-5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: (21 commits) parisc: use memblock_alloc() instead of custom get_memblock() parisc: Add constants for various PDC firmware calls parisc: Add constant for PDC_PAT_COMPLEX firmware call parisc: Show machine product number during boot parisc: Add constants for PDC_RELOCATE PDC call parisc: Add PDC_CRASH_PREP PDC function number parisc: Use F_EXTEND() macro in iosapic code parisc: remove the HBA_DATA macro parisc/lba_pci: use container_of in LBA_DEV parisc/dino: use container_of in DINO_DEV parisc: properly type the return value of parisc_walk_tree parisc: properly type the iommu field in struct pci_hba_data parisc: turn GET_IOC into an inline function parisc: move internal implementation details out of <asm/dma-mapping.h> parisc: don't include <asm/cacheflush.h> in <asm/dma-mapping.h> parisc: remove meaningless ccflags-y in arch/parisc/boot/Makefile parisc: replace oops_in_progress manipulation with bust_spinlocks() parisc: Improve initial IRQ to CPU assignment parisc: Count IPI function call interrupts parisc: Show rescheduling interrupts on SMP machines only ...
2019-03-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds1-9/+39
Pull networking updates from David Miller: "Here we go, another merge window full of networking and #ebpf changes: 1) Snoop DHCPACKS in batman-adv to learn MAC/IP pairs in the DHCP range without dealing with floods of ARP traffic, from Linus Lüssing. 2) Throttle buffered multicast packet transmission in mt76, from Felix Fietkau. 3) Support adaptive interrupt moderation in ice, from Brett Creeley. 4) A lot of struct_size conversions, from Gustavo A. R. Silva. 5) Add peek/push/pop commands to bpftool, as well as bash completion, from Stanislav Fomichev. 6) Optimize sk_msg_clone(), from Vakul Garg. 7) Add SO_BINDTOIFINDEX, from David Herrmann. 8) Be more conservative with local resends due to local congestion, from Yuchung Cheng. 9) Allow vetoing of unsupported VXLAN FDBs, from Petr Machata. 10) Add health buffer support to devlink, from Eran Ben Elisha. 11) Add TXQ scheduling API to mac80211, from Toke Høiland-Jørgensen. 12) Add statistics to basic packet scheduler filter, from Cong Wang. 13) Add GRE tunnel support for mlxsw Spectrum-2, from Nir Dotan. 14) Lots of new IP tunneling forwarding tests, also from Nir Dotan. 15) Add 3ad stats to bonding, from Nikolay Aleksandrov. 16) Lots of probing improvements for bpftool, from Quentin Monnet. 17) Various nfp drive #ebpf JIT improvements from Jakub Kicinski. 18) Allow #ebpf programs to access gso_segs from skb shared info, from Eric Dumazet. 19) Add sock_diag support for AF_XDP sockets, from Björn Töpel. 20) Support 22260 iwlwifi devices, from Luca Coelho. 21) Use rbtree for ipv6 defragmentation, from Peter Oskolkov. 22) Add JMP32 instruction class support to #ebpf, from Jiong Wang. 23) Add spinlock support to #ebpf, from Alexei Starovoitov. 24) Support 256-bit keys and TLS 1.3 in ktls, from Dave Watson. 25) Add device infomation API to devlink, from Jakub Kicinski. 26) Add new timestamping socket options which are y2038 safe, from Deepa Dinamani. 27) Add RX checksum offloading for various sh_eth chips, from Sergei Shtylyov. 28) Flow offload infrastructure, from Pablo Neira Ayuso. 29) Numerous cleanups, improvements, and bug fixes to the PHY layer and many drivers from Heiner Kallweit. 30) Lots of changes to try and make packet scheduler classifiers run lockless as much as possible, from Vlad Buslov. 31) Support BCM957504 chip in bnxt_en driver, from Erik Burrows. 32) Add concurrency tests to tc-tests infrastructure, from Vlad Buslov. 33) Add hwmon support to aquantia, from Heiner Kallweit. 34) Allow 64-bit values for SO_MAX_PACING_RATE, from Eric Dumazet. And I would be remiss if I didn't thank the various major networking subsystem maintainers for integrating much of this work before I even saw it. Alexei Starovoitov, Daniel Borkmann, Pablo Neira Ayuso, Johannes Berg, Kalle Valo, and many others. Thank you!" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2207 commits) net/sched: avoid unused-label warning net: ignore sysctl_devconf_inherit_init_net without SYSCTL phy: mdio-mux: fix Kconfig dependencies net: phy: use phy_modify_mmd_changed in genphy_c45_an_config_aneg net: dsa: mv88e6xxx: add call to mv88e6xxx_ports_cmode_init to probe for new DSA framework selftest/net: Remove duplicate header sky2: Disable MSI on Dell Inspiron 1545 and Gateway P-79 net/mlx5e: Update tx reporter status in case channels were successfully opened devlink: Add support for direct reporter health state update devlink: Update reporter state to error even if recover aborted sctp: call iov_iter_revert() after sending ABORT team: Free BPF filter when unregistering netdev ip6mr: Do not call __IP6_INC_STATS() from preemptible context isdn: mISDN: Fix potential NULL pointer dereference of kzalloc net: dsa: mv88e6xxx: support in-band signalling on SGMII ports with external PHYs cxgb4/chtls: Prefix adapter flags with CXGB4 net-sysfs: Switch to bitmap_zalloc() mellanox: Switch to bitmap_zalloc() bpf: add test cases for non-pointer sanitiation logic mlxsw: i2c: Extend initialization by querying resources data ...
2019-03-04get rid of legacy 'get_ds()' functionLinus Torvalds1-1/+0
Every in-kernel use of this function defined it to KERNEL_DS (either as an actual define, or as an inline function). It's an entirely historical artifact, and long long long ago used to actually read the segment selector valueof '%ds' on x86. Which in the kernel is always KERNEL_DS. Inspired by a patch from Jann Horn that just did this for a very small subset of users (the ones in fs/), along with Al who suggested a script. I then just took it to the logical extreme and removed all the remaining gunk. Roughly scripted with git grep -l '(get_ds())' -- :^tools/ | xargs sed -i 's/(get_ds())/(KERNEL_DS)/' git grep -lw 'get_ds' -- :^tools/ | xargs sed -i '/^#define get_ds()/d' plus manual fixups to remove a few unusual usage patterns, the couple of inline function cases and to fix up a comment that had become stale. The 'get_ds()' function remains in an x86 kvm selftest, since in user space it actually does something relevant. Inspired-by: Jann Horn <jannh@google.com> Inspired-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-02-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-8/+21
Three conflicts, one of which, for marvell10g.c is non-trivial and requires some follow-up from Heiner or someone else. The issue is that Heiner converted the marvell10g driver over to use the generic c45 code as much as possible. However, in 'net' a bug fix appeared which makes sure that a new local mask (MDIO_AN_10GBT_CTRL_ADV_NBT_MASK) with value 0x01e0 is cleared. Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-22parisc: use memblock_alloc() instead of custom get_memblock()Mike Rapoport1-33/+19
The get_memblock() function implements custom bottom-up memblock allocator. Setting 'memblock_bottom_up = true' before any memblock allocation is done allows replacing get_memblock() calls with memblock_alloc(). Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Tested-by: Helge Deller <deller@gmx.de> Signed-off-by: Helge Deller <deller@gmx.de>
2019-02-21parisc: Add constants for various PDC firmware callsHelge Deller1-2/+18
PDC_DEBUG, PDC_ALLOC and PDC_SCSI_PARMS were missing. Add PDC_MODEL_GET_INSTALL_KERNEL and PDC_NVOLATILE_* subfunctions. PDC_CONFIG is call #17, not 16. Luckily it's nowhere referenced yet. Signed-off-by: Helge Deller <deller@gmx.de>
2019-02-21parisc: Add constant for PDC_PAT_COMPLEX firmware callHelge Deller1-0/+4
Signed-off-by: Helge Deller <deller@gmx.de>
2019-02-21parisc: Show machine product number during bootHelge Deller3-0/+34
Ask PDC firmware during boot for the original and current product number as well as the serial number and show it (if available). Signed-off-by: Helge Deller <deller@gmx.de>
2019-02-21parisc: Add constants for PDC_RELOCATE PDC callHelge Deller1-1/+6
The PDC_RELOCATE function is called by HP-UX shortly before crashing. So, we need to handle it in qemu and thus it makes sense to add the constant here. Additionally add other subfunctions like PDC_MODEL_GET_PLATFORM_INFO (to get product and serial numbers) and PDC_TOD_CALIBRATE (to calibrate timers) too. Signed-off-by: Helge Deller <deller@gmx.de>
2019-02-21parisc: Add PDC_CRASH_PREP PDC function numberSven Schnelle1-0/+1
Signed-off-by: Sven Schnelle <svens@stackframe.org> Signed-off-by: Helge Deller <deller@gmx.de>
2019-02-21parisc: remove the HBA_DATA macroChristoph Hellwig1-2/+0
No need to hide a cast in a macro, especially as all users have cleaner ways to archive the result than blind casting. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Helge Deller <deller@gmx.de>
2019-02-21parisc: properly type the iommu field in struct pci_hba_dataChristoph Hellwig1-1/+1
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Helge Deller <deller@gmx.de>
2019-02-21parisc: move internal implementation details out of <asm/dma-mapping.h>Christoph Hellwig1-44/+0
Move everything that is not required for the public facing DMA API out of <asm/dma-mapping.h> and into a new drivers/parisc/iommu.h header. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Helge Deller <deller@gmx.de>
2019-02-21parisc: don't include <asm/cacheflush.h> in <asm/dma-mapping.h>Christoph Hellwig2-2/+1
No need for any of the definitions here, all there real work now happens out of line. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Helge Deller <deller@gmx.de>
2019-02-21parisc: remove meaningless ccflags-y in arch/parisc/boot/MakefileMasahiro Yamada1-6/+0
This ccflags-y is never used because arch/parisc/boot/Makefile only contains objcopy and install targets. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Helge Deller <deller@gmx.de>
2019-02-21parisc: replace oops_in_progress manipulation with bust_spinlocks()Sergey Senozhatsky1-2/+2
Use bust_spinlocks() function to set oops_in_progress. Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2019-02-21parisc: Improve initial IRQ to CPU assignmentHelge Deller1-1/+4
On parisc, each IRQ can only be handled by one CPU, and currently CPU0 is choosen as default for handling all IRQs by default. With this patch we now assign each requested IRQ to one of the online CPUs (and thus distribute the IRQs across all CPUs), even without an instance of irqbalance running. Signed-off-by: Helge Deller <deller@gmx.de>
2019-02-21parisc: Count IPI function call interruptsHelge Deller3-0/+6
Like other platforms, count the number of IPI function call interrupts and show it in /proc/interrupts. Signed-off-by: Helge Deller <deller@gmx.de>
2019-02-21parisc: Show rescheduling interrupts on SMP machines onlyHelge Deller1-4/+6
Signed-off-by: Helge Deller <deller@gmx.de>
2019-02-21parisc: Fix ptrace syscall number modificationDmitry V. Levin1-8/+21
Commit 910cd32e552e ("parisc: Fix and enable seccomp filter support") introduced a regression in ptrace-based syscall tampering: when tracer changes syscall number to -1, the kernel fails to initialize %r28 with -ENOSYS and subsequently fails to return the error code of the failed syscall to userspace. This erroneous behaviour could be observed with a simple strace syscall fault injection command which is expected to print something like this: $ strace -a0 -ewrite -einject=write:error=enospc echo hello write(1, "hello\n", 6) = -1 ENOSPC (No space left on device) (INJECTED) write(2, "echo: ", 6) = -1 ENOSPC (No space left on device) (INJECTED) write(2, "write error", 11) = -1 ENOSPC (No space left on device) (INJECTED) write(2, "\n", 1) = -1 ENOSPC (No space left on device) (INJECTED) +++ exited with 1 +++ After commit 910cd32e552ea09caa89cdbe328e468979b030dd it loops printing something like this instead: write(1, "hello\n", 6../strace: Failed to tamper with process 12345: unexpectedly got no error (return value 0, error 0) ) = 0 (INJECTED) This bug was found by strace test suite. Fixes: 910cd32e552e ("parisc: Fix and enable seccomp filter support") Cc: stable@vger.kernel.org # v4.5+ Signed-off-by: Dmitry V. Levin <ldv@altlinux.org> Tested-by: Helge Deller <deller@gmx.de> Signed-off-by: Helge Deller <deller@gmx.de>
2019-02-1932-bit userspace ABI: introduce ARCH_32BIT_OFF_T config optionYury Norov1-0/+1
All new 32-bit architectures should have 64-bit userspace off_t type, but existing architectures has 32-bit ones. To enforce the rule, new config option is added to arch/Kconfig that defaults ARCH_32BIT_OFF_T to be disabled for new 32-bit architectures. All existing 32-bit architectures enable it explicitly. New option affects force_o_largefile() behaviour. Namely, if userspace off_t is 64-bits long, we have no reason to reject user to open big files. Note that even if architectures has only 64-bit off_t in the kernel (arc, c6x, h8300, hexagon, nios2, openrisc, and unicore32), a libc may use 32-bit off_t, and therefore want to limit the file size to 4GB unless specified differently in the open flags. Signed-off-by: Yury Norov <ynorov@caviumnetworks.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Yury Norov <ynorov@marvell.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-02-18arch: move common mmap flags to linux/mman.hMichael S. Tsirkin1-3/+1
Now that we have 3 mmap flags shared by all architectures, let's move them into the common header. This will help discourage future architectures from duplicating code. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-02-07y2038: add 64-bit time_t syscalls to all 32-bit architecturesArnd Bergmann1-0/+21
This adds 21 new system calls on each ABI that has 32-bit time_t today. All of these have the exact same semantics as their existing counterparts, and the new ones all have macro names that end in 'time64' for clarification. This gets us to the point of being able to safely use a C library that has 64-bit time_t in user space. There are still a couple of loose ends to tie up in various areas of the code, but this is the big one, and should be entirely uncontroversial at this point. In particular, there are four system calls (getitimer, setitimer, waitid, and getrusage) that don't have a 64-bit counterpart yet, but these can all be safely implemented in the C library by wrapping around the existing system calls because the 32-bit time_t they pass only counts elapsed time, not time since the epoch. They will be dealt with later. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com>
2019-02-07y2038: rename old time and utime syscallsArnd Bergmann2-8/+16
The time, stime, utime, utimes, and futimesat system calls are only used on older architectures, and we do not provide y2038 safe variants of them, as they are replaced by clock_gettime64, clock_settime64, and utimensat_time64. However, for consistency it seems better to have the 32-bit architectures that still use them call the "time32" entry points (leaving the traditional handlers for the 64-bit architectures), like we do for system calls that now require two versions. Note: We used to always define __ARCH_WANT_SYS_TIME and __ARCH_WANT_SYS_UTIME and only set __ARCH_WANT_COMPAT_SYS_TIME and __ARCH_WANT_SYS_UTIME32 for compat mode on 64-bit kernels. Now this is reversed: only 64-bit architectures set __ARCH_WANT_SYS_TIME/UTIME, while we need __ARCH_WANT_SYS_TIME32/UTIME32 for 32-bit architectures and compat mode. The resulting asm/unistd.h changes look a bit counterintuitive. This is only a cleanup patch and it should not change any behavior. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2019-02-07y2038: use time32 syscall names on 32-bitArnd Bergmann1-23/+46
This is the big flip, where all 32-bit architectures set COMPAT_32BIT_TIME and use the _time32 system calls from the former compat layer instead of the system calls that take __kernel_timespec and similar arguments. The temporary redirects for __kernel_timespec, __kernel_itimerspec and __kernel_timex can get removed with this. It would be easy to split this commit by architecture, but with the new generated system call tables, it's easy enough to do it all at once, which makes it a little easier to check that the changes are the same in each table. Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-02-07y2038: syscalls: rename y2038 compat syscallsArnd Bergmann1-27/+27
A lot of system calls that pass a time_t somewhere have an implementation using a COMPAT_SYSCALL_DEFINEx() on 64-bit architectures, and have been reworked so that this implementation can now be used on 32-bit architectures as well. The missing step is to redefine them using the regular SYSCALL_DEFINEx() to get them out of the compat namespace and make it possible to build them on 32-bit architectures. Any system call that ends in 'time' gets a '32' suffix on its name for that version, while the others get a '_time32' suffix, to distinguish them from the normal version, which takes a 64-bit time argument in the future. In this step, only 64-bit architectures are changed, doing this rename first lets us avoid touching the 32-bit architectures twice. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-02-07syscalls: remove obsolete __IGNORE_ macrosArnd Bergmann1-1/+0
These are all for ignoring the lack of obsolete system calls, which have been marked the same way in scripts/checksyscall.sh, so these can be removed. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2019-02-03sock: Add SO_RCVTIMEO_NEW and SO_SNDTIMEO_NEWDeepa Dinamani1-2/+8
Add new socket timeout options that are y2038 safe. Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Acked-by: Willem de Bruijn <willemb@google.com> Cc: ccaulfie@redhat.com Cc: davem@davemloft.net Cc: deller@gmx.de Cc: paulus@samba.org Cc: ralf@linux-mips.org Cc: rth@twiddle.net Cc: cluster-devel@redhat.com Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-alpha@vger.kernel.org Cc: linux-arch@vger.kernel.org Cc: linux-mips@vger.kernel.org Cc: linux-parisc@vger.kernel.org Cc: sparclinux@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-03socket: Rename SO_RCVTIMEO/ SO_SNDTIMEO with _OLD suffixesDeepa Dinamani1-2/+4
SO_RCVTIMEO and SO_SNDTIMEO socket options use struct timeval as the time format. struct timeval is not y2038 safe. The subsequent patches in the series add support for new socket timeout options with _NEW suffix that will use y2038 safe data structures. Although the existing struct timeval layout is sufficiently wide to represent timeouts, because of the way libc will interpret time_t based on user defined flag, these new flags provide a way of having a structure that is the same for all architectures consistently. Rename the existing options with _OLD suffix forms so that the right option is enabled for userspace applications according to the architecture and time_t definition of libc. Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Acked-by: Willem de Bruijn <willemb@google.com> Cc: ccaulfie@redhat.com Cc: deller@gmx.de Cc: paulus@samba.org Cc: ralf@linux-mips.org Cc: rth@twiddle.net Cc: cluster-devel@redhat.com Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-alpha@vger.kernel.org Cc: linux-arch@vger.kernel.org Cc: linux-mips@vger.kernel.org Cc: linux-parisc@vger.kernel.org Cc: sparclinux@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-03socket: Add SO_TIMESTAMPING_NEWDeepa Dinamani1-2/+3
Add SO_TIMESTAMPING_NEW variant of socket timestamp options. This is the y2038 safe versions of the SO_TIMESTAMPING_OLD for all architectures. Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Acked-by: Willem de Bruijn <willemb@google.com> Cc: chris@zankel.net Cc: fenghua.yu@intel.com Cc: rth@twiddle.net Cc: tglx@linutronix.de Cc: ubraun@linux.ibm.com Cc: linux-alpha@vger.kernel.org Cc: linux-arch@vger.kernel.org Cc: linux-ia64@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-s390@vger.kernel.org Cc: linux-xtensa@linux-xtensa.org Cc: sparclinux@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-03socket: Add SO_TIMESTAMP[NS]_NEWDeepa Dinamani1-2/+12
Add SO_TIMESTAMP_NEW and SO_TIMESTAMPNS_NEW variants of socket timestamp options. These are the y2038 safe versions of the SO_TIMESTAMP_OLD and SO_TIMESTAMPNS_OLD for all architectures. Note that the format of scm_timestamping.ts[0] is not changed in this patch. Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Acked-by: Willem de Bruijn <willemb@google.com> Cc: jejb@parisc-linux.org Cc: ralf@linux-mips.org Cc: rth@twiddle.net Cc: linux-alpha@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-parisc@vger.kernel.org Cc: linux-rdma@vger.kernel.org Cc: netdev@vger.kernel.org Cc: sparclinux@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-03sockopt: Rename SO_TIMESTAMP* to SO_TIMESTAMP*_OLDDeepa Dinamani1-7/+16
SO_TIMESTAMP, SO_TIMESTAMPNS and SO_TIMESTAMPING options, the way they are currently defined, are not y2038 safe. Subsequent patches in the series add new y2038 safe versions of these options which provide 64 bit timestamps on all architectures uniformly. Hence, rename existing options with OLD tag suffixes. Also note that kernel will not use the untagged SO_TIMESTAMP* and SCM_TIMESTAMP* options internally anymore. Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Acked-by: Willem de Bruijn <willemb@google.com> Cc: deller@gmx.de Cc: dhowells@redhat.com Cc: jejb@parisc-linux.org Cc: ralf@linux-mips.org Cc: rth@twiddle.net Cc: linux-afs@lists.infradead.org Cc: linux-alpha@vger.kernel.org Cc: linux-arch@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-parisc@vger.kernel.org Cc: linux-rdma@vger.kernel.org Cc: sparclinux@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-25arch: add pkey and rseq syscall numbers everywhereArnd Bergmann2-3/+4
Most architectures define system call numbers for the rseq and pkey system calls, even when they don't support the features, and perhaps never will. Only a few architectures are missing these, so just define them anyway for consistency. If we decide to add them later to one of these, the system call numbers won't get out of sync then. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
2019-01-22parisc: iomap: introduce io{read|write}64Logan Gunthorpe2-0/+73
Add support for io{read|write}64() functions in parisc architecture. These are pretty straightforward copies of similar functions which make use of readq and writeq. Also, indicate that the lo_hi and hi_lo variants of these functions are not provided by this architecture. Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Acked-by: Helge Deller <deller@gmx.de> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Philippe Ombredanne <pombredanne@nexb.com> Cc: Kate Stewart <kstewart@linuxfoundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-18net: introduce SO_BINDTOIFINDEX sockoptDavid Herrmann1-0/+2
This introduces a new generic SOL_SOCKET-level socket option called SO_BINDTOIFINDEX. It behaves similar to SO_BINDTODEVICE, but takes a network interface index as argument, rather than the network interface name. User-space often refers to network-interfaces via their index, but has to temporarily resolve it to a name for a call into SO_BINDTODEVICE. This might pose problems when the network-device is renamed asynchronously by other parts of the system. When this happens, the SO_BINDTODEVICE might either fail, or worse, it might bind to the wrong device. In most cases user-space only ever operates on devices which they either manage themselves, or otherwise have a guarantee that the device name will not change (e.g., devices that are UP cannot be renamed). However, particularly in libraries this guarantee is non-obvious and it would be nice if that race-condition would simply not exist. It would make it easier for those libraries to operate even in situations where the device-name might change under the hood. A real use-case that we recently hit is trying to start the network stack early in the initrd but make it survive into the real system. Existing distributions rename network-interfaces during the transition from initrd into the real system. This, obviously, cannot affect devices that are up and running (unless you also consider moving them between network-namespaces). However, the network manager now has to make sure its management engine for dormant devices will not run in parallel to these renames. Particularly, when you offload operations like DHCP into separate processes, these might setup their sockets early, and thus have to resolve the device-name possibly running into this race-condition. By avoiding a call to resolve the device-name, we no longer depend on the name and can run network setup of dormant devices in parallel to the transition off the initrd. The SO_BINDTOIFINDEX ioctl plugs this race. Reviewed-by: Tom Gundersen <teg@jklm.no> Signed-off-by: David Herrmann <dh.herrmann@gmail.com> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-06arch: remove redundant UAPI generic-y definesMasahiro Yamada1-6/+0
Now that Kbuild automatically creates asm-generic wrappers for missing mandatory headers, it is redundant to list the same headers in generic-y and mandatory-y. Suggested-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Sam Ravnborg <sam@ravnborg.org>
2019-01-06arch: remove stale comments "UAPI Header export list"Masahiro Yamada1-1/+0
These comments are leftovers of commit fcc8487d477a ("uapi: export all headers under uapi directories"). Prior to that commit, exported headers must be explicitly added to header-y. Now, all headers under the uapi/ directories are exported. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-01-05Merge branch 'parisc-4.21-2' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc fix from Helge Deller: "Fix boot issues with a series of parisc servers since kernel 4.20. Remapping kernel text with set_kernel_text_rw() missed to remap from lowest up until the highest huge-page aligned kernel text addresss" * 'parisc-4.21-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Remap hugepage-aligned pages in set_kernel_text_rw()
2019-01-05Merge branch 'akpm' (patches from Andrew)Linus Torvalds2-3/+3
Merge more updates from Andrew Morton: - procfs updates - various misc bits - lib/ updates - epoll updates - autofs - fatfs - a few more MM bits * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (58 commits) mm/page_io.c: fix polled swap page in checkpatch: add Co-developed-by to signature tags docs: fix Co-Developed-by docs drivers/base/platform.c: kmemleak ignore a known leak fs: don't open code lru_to_page() fs/: remove caller signal_pending branch predictions mm/: remove caller signal_pending branch predictions arch/arc/mm/fault.c: remove caller signal_pending_branch predictions kernel/sched/: remove caller signal_pending branch predictions kernel/locking/mutex.c: remove caller signal_pending branch predictions mm: select HAVE_MOVE_PMD on x86 for faster mremap mm: speed up mremap by 20x on large regions mm: treewide: remove unused address argument from pte_alloc functions initramfs: cleanup incomplete rootfs scripts/gdb: fix lx-version string output kernel/kcov.c: mark write_comp_data() as notrace kernel/sysctl: add panic_print into sysctl panic: add options to print system info when panic happens bfs: extra sanity checking and static inode bitmap exec: separate MM_ANONPAGES and RLIMIT_STACK accounting ...
2019-01-05parisc: Remap hugepage-aligned pages in set_kernel_text_rw()Helge Deller1-2/+2
The alternative coding patch for parisc in kernel 4.20 broke booting machines with PA8500-PA8700 CPUs. The problem is, that for such machines the parisc kernel automatically utilizes huge pages to access kernel text code, but the set_kernel_text_rw() function, which is used shortly before applying any alternative patches, didn't used the correctly hugepage-aligned addresses to remap the kernel text read-writeable. Fixes: 3847dab77421 ("parisc: Add alternative coding infrastructure") Cc: <stable@vger.kernel.org> [4.20] Signed-off-by: Helge Deller <deller@gmx.de>
2019-01-05mm: treewide: remove unused address argument from pte_alloc functionsJoel Fernandes (Google)1-2/+2
Patch series "Add support for fast mremap". This series speeds up the mremap(2) syscall by copying page tables at the PMD level even for non-THP systems. There is concern that the extra 'address' argument that mremap passes to pte_alloc may do something subtle architecture related in the future that may make the scheme not work. Also we find that there is no point in passing the 'address' to pte_alloc since its unused. This patch therefore removes this argument tree-wide resulting in a nice negative diff as well. Also ensuring along the way that the enabled architectures do not do anything funky with the 'address' argument that goes unnoticed by the optimization. Build and boot tested on x86-64. Build tested on arm64. The config enablement patch for arm64 will be posted in the future after more testing. The changes were obtained by applying the following Coccinelle script. (thanks Julia for answering all Coccinelle questions!). Following fix ups were done manually: * Removal of address argument from pte_fragment_alloc * Removal of pte_alloc_one_fast definitions from m68k and microblaze. // Options: --include-headers --no-includes // Note: I split the 'identifier fn' line, so if you are manually // running it, please unsplit it so it runs for you. virtual patch @pte_alloc_func_def depends on patch exists@ identifier E2; identifier fn =~ "^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$"; type T2; @@ fn(... - , T2 E2 ) { ... } @pte_alloc_func_proto_noarg depends on patch exists@ type T1, T2, T3, T4; identifier fn =~ "^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$"; @@ ( - T3 fn(T1, T2); + T3 fn(T1); | - T3 fn(T1, T2, T4); + T3 fn(T1, T2); ) @pte_alloc_func_proto depends on patch exists@ identifier E1, E2, E4; type T1, T2, T3, T4; identifier fn =~ "^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$"; @@ ( - T3 fn(T1 E1, T2 E2); + T3 fn(T1 E1); | - T3 fn(T1 E1, T2 E2, T4 E4); + T3 fn(T1 E1, T2 E2); ) @pte_alloc_func_call depends on patch exists@ expression E2; identifier fn =~ "^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$"; @@ fn(... -, E2 ) @pte_alloc_macro depends on patch exists@ identifier fn =~ "^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$"; identifier a, b, c; expression e; position p; @@ ( - #define fn(a, b, c) e + #define fn(a, b) e | - #define fn(a, b) e + #define fn(a) e ) Link: http://lkml.kernel.org/r/20181108181201.88826-2-joelaf@google.com Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org> Suggested-by: Kirill A. Shutemov <kirill@shutemov.name> Acked-by: Kirill A. Shutemov <kirill@shutemov.name> Cc: Michal Hocko <mhocko@kernel.org> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Kirill A. Shutemov <kirill@shutemov.name> Cc: William Kucharski <william.kucharski@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-01-05fls: change parameter to unsigned intMatthew Wilcox1-1/+1
When testing in userspace, UBSAN pointed out that shifting into the sign bit is undefined behaviour. It doesn't really make sense to ask for the highest set bit of a negative value, so just turn the argument type into an unsigned int. Some architectures (eg ppc) already had it declared as an unsigned int, so I don't expect too many problems. Link: http://lkml.kernel.org/r/20181105221117.31828-1-willy@infradead.org Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-01-04Remove 'type' argument from access_ok() functionLinus Torvalds2-2/+2
Nobody has actually used the type (VERIFY_READ vs VERIFY_WRITE) argument of the user address range verification function since we got rid of the old racy i386-only code to walk page tables by hand. It existed because the original 80386 would not honor the write protect bit when in kernel mode, so you had to do COW by hand before doing any user access. But we haven't supported that in a long time, and these days the 'type' argument is a purely historical artifact. A discussion about extending 'user_access_begin()' to do the range checking resulted this patch, because there is no way we're going to move the old VERIFY_xyz interface to that model. And it's best done at the end of the merge window when I've done most of my merges, so let's just get this done once and for all. This patch was mostly done with a sed-script, with manual fix-ups for the cases that weren't of the trivial 'access_ok(VERIFY_xyz' form. There were a couple of notable cases: - csky still had the old "verify_area()" name as an alias. - the iter_iov code had magical hardcoded knowledge of the actual values of VERIFY_{READ,WRITE} (not that they mattered, since nothing really used it) - microblaze used the type argument for a debug printout but other than those oddities this should be a total no-op patch. I tried to fix up all architectures, did fairly extensive grepping for access_ok() uses, and the changes are trivial, but I may have missed something. Any missed conversion should be trivially fixable, though. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-12-30Merge tag 'kconfig-v4.21-2' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kconfig file consolidation from Masahiro Yamada: "Consolidation of bus (PCI, PCMCIA, EISA, RapidIO) config entries by Christoph Hellwig. Currently, every architecture that wants to provide common peripheral busses needs to add some boilerplate code and include the right Kconfig files. This series instead just selects the presence (when needed) and then handles everything in the bus-specific Kconfig file under drivers/" * tag 'kconfig-v4.21-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: pcmcia: remove per-arch PCMCIA config entry eisa: consolidate EISA Kconfig entry in drivers/eisa rapidio: consolidate RAPIDIO config entry in drivers/rapidio pcmcia: allow PCMCIA support independent of the architecture PCI: consolidate the PCI_SYSCALL symbol PCI: consolidate the PCI_DOMAINS and PCI_DOMAINS_GENERIC config options PCI: consolidate PCI config entry in drivers/pci MIPS: remove the HT_PCI config option
2018-12-29Merge tag 'dma-mapping-4.21' of git://git.infradead.org/users/hch/dma-mappingLinus Torvalds3-7/+3
Pull DMA mapping updates from Christoph Hellwig: "A huge update this time, but a lot of that is just consolidating or removing code: - provide a common DMA_MAPPING_ERROR definition and avoid indirect calls for dma_map_* error checking - use direct calls for the DMA direct mapping case, avoiding huge retpoline overhead for high performance workloads - merge the swiotlb dma_map_ops into dma-direct - provide a generic remapping DMA consistent allocator for architectures that have devices that perform DMA that is not cache coherent. Based on the existing arm64 implementation and also used for csky now. - improve the dma-debug infrastructure, including dynamic allocation of entries (Robin Murphy) - default to providing chaining scatterlist everywhere, with opt-outs for the few architectures (alpha, parisc, most arm32 variants) that can't cope with it - misc sparc32 dma-related cleanups - remove the dma_mark_clean arch hook used by swiotlb on ia64 and replace it with the generic noncoherent infrastructure - fix the return type of dma_set_max_seg_size (Niklas Söderlund) - move the dummy dma ops for not DMA capable devices from arm64 to common code (Robin Murphy) - ensure dma_alloc_coherent returns zeroed memory to avoid kernel data leaks through userspace. We already did this for most common architectures, but this ensures we do it everywhere. dma_zalloc_coherent has been deprecated and can hopefully be removed after -rc1 with a coccinelle script" * tag 'dma-mapping-4.21' of git://git.infradead.org/users/hch/dma-mapping: (73 commits) dma-mapping: fix inverted logic in dma_supported dma-mapping: deprecate dma_zalloc_coherent dma-mapping: zero memory returned from dma_alloc_* sparc/iommu: fix ->map_sg return value sparc/io-unit: fix ->map_sg return value arm64: default to the direct mapping in get_arch_dma_ops PCI: Remove unused attr variable in pci_dma_configure ia64: only select ARCH_HAS_DMA_COHERENT_TO_PFN if swiotlb is enabled dma-mapping: bypass indirect calls for dma-direct vmd: use the proper dma_* APIs instead of direct methods calls dma-direct: merge swiotlb_dma_ops into the dma_direct code dma-direct: use dma_direct_map_page to implement dma_direct_map_sg dma-direct: improve addressability error reporting swiotlb: remove dma_mark_clean swiotlb: remove SWIOTLB_MAP_ERROR ACPI / scan: Refactor _CCA enforcement dma-mapping: factor out dummy DMA ops dma-mapping: always build the direct mapping code dma-mapping: move dma_cache_sync out of line dma-mapping: move various slow path functions out of line ...
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