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2017-06-04sparc: Simplify <asm/siginfo.h>Christoph Hellwig1-12/+0
There is no need for the forward declaration of compat_siginfo provided here. We can't yet use the generic header as we need to pull in the sparc-specific version of the uapi <asm/siginfo.h>, but this prepares for removing the non-uapi <asm/siginfo.h> entirely. Signed-off-by: Christoph Hellwig <[email protected]> Acked-by: "David S. Miller" <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Cc: [email protected] Cc: Fenghua Yu <[email protected]> Cc: Tony Luck <[email protected]> Cc: [email protected] Cc: Arnd Bergmann <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected]
2017-05-25arch/sparc: Enable queued spinlock support for SPARCBabu Moger3-83/+13
This patch makes the necessary changes in SPARC architecture to enable queued spinlock support. Here are some of the earlier discussions about this feature. https://lwn.net/Articles/561775/ https://lwn.net/Articles/590243/ Cleaned-up the spinlock_64.h. The definitions of arch_spin_xxx are replaced by the function in <asm-generic/qspinlock.h> Signed-off-by: Babu Moger <[email protected]> Reviewed-by: Håkon Bugge <[email protected]> Reviewed-by: Jane Chu <[email protected]> Reviewed-by: Shannon Nelson <[email protected]> Reviewed-by: Vijay Kumar <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-05-25arch/sparc: Introduce xchg16 for SPARCBabu Moger1-10/+39
SPARC supports 32 bit and 64 bit xchg right now. Add the support for 16 bit (2 byte) xchg. This is required to support queued spinlock feature which uses 2 byte xchg. This is achieved using 4 byte cas instructions with byte manipulations. Also re-arranged the code to call __cmpxchg_u32 inside xchg16. Signed-off-by: Babu Moger <[email protected]> Reviewed-by: Håkon Bugge <[email protected]> Reviewed-by: Steven Sistare <[email protected]> Reviewed-by: Shannon Nelson <[email protected]> Reviewed-by: Jane Chu <[email protected]> Reviewed-by: Vijay Kumar <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-05-25arch/sparc: Enable queued rwlocks for SPARCBabu Moger3-124/+12
Enable queued rwlocks for SPARC. Here are the discussions on this feature when this was introduced. https://lwn.net/Articles/572765/ https://lwn.net/Articles/582200/ Cleaned-up the arch_read_xxx and arch_write_xxx definitions in spinlock_64.h. These routines are replaced by the functions in include/asm-generic/qrwlock.h Signed-off-by: Babu Moger <[email protected]> Reviewed-by: Håkon Bugge <[email protected]> Reviewed-by: Jane Chu <[email protected]> Reviewed-by: Shannon Nelson <[email protected]> Reviewed-by: Vijay Kumar <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-05-25arch/sparc: Introduce cmpxchg_u8 SPARCBabu Moger1-0/+29
SPARC supports 32 bit and 64 bit cmpxchg right now. Add support for 8 bit (1 byte) cmpxchg. This is required to support queued rwlocks feature which uses 1 byte cmpxchg. The function __cmpxchg_u8 here uses the 4 byte cas instruction with a byte manipulation to achieve 1 byte cmpxchg. Signed-off-by: Babu Moger <[email protected]> Reviewed-by: Håkon Bugge <[email protected]> Reviewed-by: Steve Sistare <[email protected]> Reviewed-by: Shannon Nelson <[email protected]> Reviewed-by: Jane Chu <[email protected]> Reviewed-by: Vijay Kumar <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-05-25arch/sparc: Remove the check #ifndef __LINUX_SPINLOCK_TYPES_HBabu Moger1-4/+0
Saw these compile errors on SPARC when queued rwlock feature is enabled. CC kernel/locking/qrwlock.o In file included from ./include/asm-generic/qrwlock_types.h:5, from ./arch/sparc/include/asm/qrwlock.h:4, from kernel/locking/qrwlock.c:24: ./arch/sparc/include/asm/spinlock_types.h:5:3: error: #error "please don't include this file directly" SPARC has this guard which causes compile error when spinlock_types.h is included directly. @ifndef __LINUX_SPINLOCK_TYPES_H @ error "please don't include this file directly" @endif Remove this un-necessary "ifndef __LINUX_SPINLOCK_TYPES_H" stanza from SPARC. Signed-off-by: Babu Moger <[email protected]> Suggested-by: David Miller <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-05-21net: Define SCM_TIMESTAMPING_PKTINFO on all architectures.David S. Miller1-0/+2
A definition was only provided for asm-generic/socket.h using platforms, define it for the others as well Reported-by: Stephen Rothwell <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-05-17sparc: Fix -Wstringop-overflow warningOrlando Arias2-3/+3
Greetings, GCC 7 introduced the -Wstringop-overflow flag to detect buffer overflows in calls to string handling functions [1][2]. Due to the way ``empty_zero_page'' is declared in arch/sparc/include/setup.h, this causes a warning to trigger at compile time in the function mem_init(), which is subsequently converted to an error. The ensuing patch fixes this issue and aligns the declaration of empty_zero_page to that of other architectures. Thank you. Cheers, Orlando. [1] https://gcc.gnu.org/ml/gcc-patches/2016-10/msg02308.html [2] https://gcc.gnu.org/gcc-7/changes.html Signed-off-by: Orlando Arias <[email protected]> -------------------------------------------------------------------------------- Signed-off-by: David S. Miller <[email protected]>
2017-05-17sparc64: Fix mapping of 64k pages with MAP_FIXEDNitin Gupta1-2/+4
An incorrect huge page alignment check caused mmap failure for 64K pages when MAP_FIXED is used with address not aligned to HPAGE_SIZE. Orabug: 25885991 Fixes: dcd1912d21a0 ("sparc64: Add 64K page size support") Signed-off-by: Nitin Gupta <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-05-15kill strlen_user()Al Viro2-2/+0
no callers, no consistent semantics, no sane way to use it... Signed-off-by: Al Viro <[email protected]>
2017-05-11uapi: export all headers under uapi directoriesNicolas Dichtel1-48/+0
Regularly, when a new header is created in include/uapi/, the developer forgets to add it in the corresponding Kbuild file. This error is usually detected after the release is out. In fact, all headers under uapi directories should be exported, thus it's useless to have an exhaustive list. After this patch, the following files, which were not exported, are now exported (with make headers_install_all): asm-arc/kvm_para.h asm-arc/ucontext.h asm-blackfin/shmparam.h asm-blackfin/ucontext.h asm-c6x/shmparam.h asm-c6x/ucontext.h asm-cris/kvm_para.h asm-h8300/shmparam.h asm-h8300/ucontext.h asm-hexagon/shmparam.h asm-m32r/kvm_para.h asm-m68k/kvm_para.h asm-m68k/shmparam.h asm-metag/kvm_para.h asm-metag/shmparam.h asm-metag/ucontext.h asm-mips/hwcap.h asm-mips/reg.h asm-mips/ucontext.h asm-nios2/kvm_para.h asm-nios2/ucontext.h asm-openrisc/shmparam.h asm-parisc/kvm_para.h asm-powerpc/perf_regs.h asm-sh/kvm_para.h asm-sh/ucontext.h asm-tile/shmparam.h asm-unicore32/shmparam.h asm-unicore32/ucontext.h asm-x86/hwcap2.h asm-xtensa/kvm_para.h drm/armada_drm.h drm/etnaviv_drm.h drm/vgem_drm.h linux/aspeed-lpc-ctrl.h linux/auto_dev-ioctl.h linux/bcache.h linux/btrfs_tree.h linux/can/vxcan.h linux/cifs/cifs_mount.h linux/coresight-stm.h linux/cryptouser.h linux/fsmap.h linux/genwqe/genwqe_card.h linux/hash_info.h linux/kcm.h linux/kcov.h linux/kfd_ioctl.h linux/lightnvm.h linux/module.h linux/nbd-netlink.h linux/nilfs2_api.h linux/nilfs2_ondisk.h linux/nsfs.h linux/pr.h linux/qrtr.h linux/rpmsg.h linux/sched/types.h linux/sed-opal.h linux/smc.h linux/smc_diag.h linux/stm.h linux/switchtec_ioctl.h linux/vfio_ccw.h linux/wil6210_uapi.h rdma/bnxt_re-abi.h Note that I have removed from this list the files which are generated in every exported directories (like .install or .install.cmd). Thanks to Julien Floret <[email protected]> for the tip to get all subdirs with a pure makefile command. For the record, note that exported files for asm directories are a mix of files listed by: - include/uapi/asm-generic/Kbuild.asm; - arch/<arch>/include/uapi/asm/Kbuild; - arch/<arch>/include/asm/Kbuild. Signed-off-by: Nicolas Dichtel <[email protected]> Acked-by: Daniel Vetter <[email protected]> Acked-by: Russell King <[email protected]> Acked-by: Mark Salter <[email protected]> Acked-by: Michael Ellerman <[email protected]> (powerpc) Signed-off-by: Masahiro Yamada <[email protected]>
2017-05-08Merge tag 'pci-v4.12-changes' of ↵Linus Torvalds1-4/+1
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: - add framework for supporting PCIe devices in Endpoint mode (Kishon Vijay Abraham I) - use non-postable PCI config space mappings when possible (Lorenzo Pieralisi) - clean up and unify mmap of PCI BARs (David Woodhouse) - export and unify Function Level Reset support (Christoph Hellwig) - avoid FLR for Intel 82579 NICs (Sasha Neftin) - add pci_request_irq() and pci_free_irq() helpers (Christoph Hellwig) - short-circuit config access failures for disconnected devices (Keith Busch) - remove D3 sleep delay when possible (Adrian Hunter) - freeze PME scan before suspending devices (Lukas Wunner) - stop disabling MSI/MSI-X in pci_device_shutdown() (Prarit Bhargava) - disable boot interrupt quirk for ASUS M2N-LR (Stefan Assmann) - add arch-specific alignment control to improve device passthrough by avoiding multiple BARs in a page (Yongji Xie) - add sysfs sriov_drivers_autoprobe to control VF driver binding (Bodong Wang) - allow slots below PCI-to-PCIe "reverse bridges" (Bjorn Helgaas) - fix crashes when unbinding host controllers that don't support removal (Brian Norris) - add driver for MicroSemi Switchtec management interface (Logan Gunthorpe) - add driver for Faraday Technology FTPCI100 host bridge (Linus Walleij) - add i.MX7D support (Andrey Smirnov) - use generic MSI support for Aardvark (Thomas Petazzoni) - make Rockchip driver modular (Brian Norris) - advertise 128-byte Read Completion Boundary support for Rockchip (Shawn Lin) - advertise PCI_EXP_LNKSTA_SLC for Rockchip root port (Shawn Lin) - convert atomic_t to refcount_t in HV driver (Elena Reshetova) - add CPU IRQ affinity in HV driver (K. Y. Srinivasan) - fix PCI bus removal in HV driver (Long Li) - add support for ThunderX2 DMA alias topology (Jayachandran C) - add ThunderX pass2.x 2nd node MCFG quirk (Tomasz Nowicki) - add ITE 8893 bridge DMA alias quirk (Jarod Wilson) - restrict Cavium ACS quirk only to CN81xx/CN83xx/CN88xx devices (Manish Jaggi) * tag 'pci-v4.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (146 commits) PCI: Don't allow unbinding host controllers that aren't prepared ARM: DRA7: clockdomain: Change the CLKTRCTRL of CM_PCIE_CLKSTCTRL to SW_WKUP MAINTAINERS: Add PCI Endpoint maintainer Documentation: PCI: Add userguide for PCI endpoint test function tools: PCI: Add sample test script to invoke pcitest tools: PCI: Add a userspace tool to test PCI endpoint Documentation: misc-devices: Add Documentation for pci-endpoint-test driver misc: Add host side PCI driver for PCI test function device PCI: Add device IDs for DRA74x and DRA72x dt-bindings: PCI: dra7xx: Add DT bindings to enable unaligned access PCI: dwc: dra7xx: Workaround for errata id i870 dt-bindings: PCI: dra7xx: Add DT bindings for PCI dra7xx EP mode PCI: dwc: dra7xx: Add EP mode support PCI: dwc: dra7xx: Facilitate wrapper and MSI interrupts to be enabled independently dt-bindings: PCI: Add DT bindings for PCI designware EP mode PCI: dwc: designware: Add EP mode support Documentation: PCI: Add binding documentation for pci-test endpoint function ixgbe: Use pcie_flr() instead of duplicating it IB/hfi1: Use pcie_flr() instead of duplicating it PCI: imx6: Fix spelling mistake: "contol" -> "control" ...
2017-05-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds1-0/+6
Pull networking updates from David Millar: "Here are some highlights from the 2065 networking commits that happened this development cycle: 1) XDP support for IXGBE (John Fastabend) and thunderx (Sunil Kowuri) 2) Add a generic XDP driver, so that anyone can test XDP even if they lack a networking device whose driver has explicit XDP support (me). 3) Sparc64 now has an eBPF JIT too (me) 4) Add a BPF program testing framework via BPF_PROG_TEST_RUN (Alexei Starovoitov) 5) Make netfitler network namespace teardown less expensive (Florian Westphal) 6) Add symmetric hashing support to nft_hash (Laura Garcia Liebana) 7) Implement NAPI and GRO in netvsc driver (Stephen Hemminger) 8) Support TC flower offload statistics in mlxsw (Arkadi Sharshevsky) 9) Multiqueue support in stmmac driver (Joao Pinto) 10) Remove TCP timewait recycling, it never really could possibly work well in the real world and timestamp randomization really zaps any hint of usability this feature had (Soheil Hassas Yeganeh) 11) Support level3 vs level4 ECMP route hashing in ipv4 (Nikolay Aleksandrov) 12) Add socket busy poll support to epoll (Sridhar Samudrala) 13) Netlink extended ACK support (Johannes Berg, Pablo Neira Ayuso, and several others) 14) IPSEC hw offload infrastructure (Steffen Klassert)" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2065 commits) tipc: refactor function tipc_sk_recv_stream() tipc: refactor function tipc_sk_recvmsg() net: thunderx: Optimize page recycling for XDP net: thunderx: Support for XDP header adjustment net: thunderx: Add support for XDP_TX net: thunderx: Add support for XDP_DROP net: thunderx: Add basic XDP support net: thunderx: Cleanup receive buffer allocation net: thunderx: Optimize CQE_TX handling net: thunderx: Optimize RBDR descriptor handling net: thunderx: Support for page recycling ipx: call ipxitf_put() in ioctl error path net: sched: add helpers to handle extended actions qed*: Fix issues in the ptp filter config implementation. qede: Fix concurrency issue in PTP Tx path processing. stmmac: Add support for SIMATIC IOT2000 platform net: hns: fix ethtool_get_strings overflow in hns driver tcp: fix wraparound issue in tcp_lp bpf, arm64: fix jit branch offset related to ldimm64 bpf, arm64: implement jiting of BPF_XADD ...
2017-05-01Merge branch 'work.uaccess' of ↵Linus Torvalds3-79/+11
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull uaccess unification updates from Al Viro: "This is the uaccess unification pile. It's _not_ the end of uaccess work, but the next batch of that will go into the next cycle. This one mostly takes copy_from_user() and friends out of arch/* and gets the zero-padding behaviour in sync for all architectures. Dealing with the nocache/writethrough mess is for the next cycle; fortunately, that's x86-only. Same for cleanups in iov_iter.c (I am sold on access_ok() in there, BTW; just not in this pile), same for reducing __copy_... callsites, strn*... stuff, etc. - there will be a pile about as large as this one in the next merge window. This one sat in -next for weeks. -3KLoC" * 'work.uaccess' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (96 commits) HAVE_ARCH_HARDENED_USERCOPY is unconditional now CONFIG_ARCH_HAS_RAW_COPY_USER is unconditional now m32r: switch to RAW_COPY_USER hexagon: switch to RAW_COPY_USER microblaze: switch to RAW_COPY_USER get rid of padding, switch to RAW_COPY_USER ia64: get rid of copy_in_user() ia64: sanitize __access_ok() ia64: get rid of 'segment' argument of __do_{get,put}_user() ia64: get rid of 'segment' argument of __{get,put}_user_check() ia64: add extable.h powerpc: get rid of zeroing, switch to RAW_COPY_USER esas2r: don't open-code memdup_user() alpha: fix stack smashing in old_adjtimex(2) don't open-code kernel_setsockopt() mips: switch to RAW_COPY_USER mips: get rid of tail-zeroing in primitives mips: make copy_from_user() zero tail explicitly mips: clean and reorder the forest of macros... mips: consolidate __invoke_... wrappers ...
2017-04-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2-2/+9
Signed-off-by: David S. Miller <[email protected]>
2017-04-26Merge branches 'uaccess.alpha', 'uaccess.arc', 'uaccess.arm', ↵Al Viro4-79/+12
'uaccess.arm64', 'uaccess.avr32', 'uaccess.bfin', 'uaccess.c6x', 'uaccess.cris', 'uaccess.frv', 'uaccess.h8300', 'uaccess.hexagon', 'uaccess.ia64', 'uaccess.m32r', 'uaccess.m68k', 'uaccess.metag', 'uaccess.microblaze', 'uaccess.mips', 'uaccess.mn10300', 'uaccess.nios2', 'uaccess.openrisc', 'uaccess.parisc', 'uaccess.powerpc', 'uaccess.s390', 'uaccess.score', 'uaccess.sh', 'uaccess.sparc', 'uaccess.tile', 'uaccess.um', 'uaccess.unicore32', 'uaccess.x86' and 'uaccess.xtensa' into work.uaccess
2017-04-23sparc: Update syscall tables.David S. Miller1-1/+7
Hook up statx. Ignore pkeys system calls, we don't have protection keeys on SPARC. Signed-off-by: David S. Miller <[email protected]>
2017-04-23sparc64: Fill in rest of HAVE_REGS_AND_STACK_ACCESS_APIDavid S. Miller1-1/+2
This lets us enable KPROBE_EVENTS. Signed-off-by: David S. Miller <[email protected]>
2017-04-18PCI: Add arch_can_pci_mmap_io() on architectures which can mmap() I/O spaceDavid Woodhouse1-0/+1
This is relatively esoteric, and knowing that we don't have it makes life easier in some cases rather than just an eventual -EINVAL from pci_mmap_page_range(). Signed-off-by: David Woodhouse <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]>
2017-04-18PCI: Move multiple declarations of pci_mmap_page_range() to <linux/pci.h>David Woodhouse1-4/+0
We can declare it <linux/pci.h> even on platforms where it isn't going to be defined. There's no need to have it littered through the various <asm/pci.h> files. Signed-off-by: David Woodhouse <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]>
2017-04-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller4-18/+10
Conflicts were simply overlapping changes. In the net/ipv4/route.c case the code had simply moved around a little bit and the same fix was made in both 'net' and 'net-next'. In the net/sched/sch_generic.c case a fix in 'net' happened at the same time that a new argument was added to qdisc_hash_add(). Signed-off-by: David S. Miller <[email protected]>
2017-04-08New getsockopt option to get socket cookieChenbo Feng1-0/+2
Introduce a new getsockopt operation to retrieve the socket cookie for a specific socket based on the socket fd. It returns a unique non-decreasing cookie for each socket. Tested: https://android-review.googlesource.com/#/c/358163/ Acked-by: Willem de Bruijn <[email protected]> Signed-off-by: Chenbo Feng <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-04-06sparc: remove unused wp_works_ok macroMathias Krause2-10/+0
It's unused for ages, used to be required for ksyms.c back in the v1.1 times. Signed-off-by: Mathias Krause <[email protected]> Acked-by: David S. Miller <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-04-06sparc64: Fix kernel panic due to erroneous #ifdef surrounding pmd_write()Tom Hromatka1-7/+8
This commit moves sparc64's prototype of pmd_write() outside of the CONFIG_TRANSPARENT_HUGEPAGE ifdef. In 2013, commit a7b9403f0e6d ("sparc64: Encode huge PMDs using PTE encoding.") exposed a path where pmd_write() could be called without CONFIG_TRANSPARENT_HUGEPAGE defined. This can result in the panic below. The diff is awkward to read, but the changes are straightforward. pmd_write() was moved outside of #ifdef CONFIG_TRANSPARENT_HUGEPAGE. Also, __HAVE_ARCH_PMD_WRITE was defined. kernel BUG at include/asm-generic/pgtable.h:576! \|/ ____ \|/ "@'/ .. \`@" /_| \__/ |_\ \__U_/ oracle_8114_cdb(8114): Kernel bad sw trap 5 [#1] CPU: 120 PID: 8114 Comm: oracle_8114_cdb Not tainted 4.1.12-61.7.1.el6uek.rc1.sparc64 #1 task: fff8400700a24d60 ti: fff8400700bc4000 task.ti: fff8400700bc4000 TSTATE: 0000004411e01607 TPC: 00000000004609f8 TNPC: 00000000004609fc Y: 00000005 Not tainted TPC: <gup_huge_pmd+0x198/0x1e0> g0: 000000000001c000 g1: 0000000000ef3954 g2: 0000000000000000 g3: 0000000000000001 g4: fff8400700a24d60 g5: fff8001fa5c10000 g6: fff8400700bc4000 g7: 0000000000000720 o0: 0000000000bc5058 o1: 0000000000000240 o2: 0000000000006000 o3: 0000000000001c00 o4: 0000000000000000 o5: 0000048000080000 sp: fff8400700bc6ab1 ret_pc: 00000000004609f0 RPC: <gup_huge_pmd+0x190/0x1e0> l0: fff8400700bc74fc l1: 0000000000020000 l2: 0000000000002000 l3: 0000000000000000 l4: fff8001f93250950 l5: 000000000113f800 l6: 0000000000000004 l7: 0000000000000000 i0: fff8400700ca46a0 i1: bd0000085e800453 i2: 000000026a0c4000 i3: 000000026a0c6000 i4: 0000000000000001 i5: fff800070c958de8 i6: fff8400700bc6b61 i7: 0000000000460dd0 I7: <gup_pud_range+0x170/0x1a0> Call Trace: [0000000000460dd0] gup_pud_range+0x170/0x1a0 [0000000000460e84] get_user_pages_fast+0x84/0x120 [00000000006f5a18] iov_iter_get_pages+0x98/0x240 [00000000005fa744] do_direct_IO+0xf64/0x1e00 [00000000005fbbc0] __blockdev_direct_IO+0x360/0x15a0 [00000000101f74fc] ext4_ind_direct_IO+0xdc/0x400 [ext4] [00000000101af690] ext4_ext_direct_IO+0x1d0/0x2c0 [ext4] [00000000101af86c] ext4_direct_IO+0xec/0x220 [ext4] [0000000000553bd4] generic_file_read_iter+0x114/0x140 [00000000005bdc2c] __vfs_read+0xac/0x100 [00000000005bf254] vfs_read+0x54/0x100 [00000000005bf368] SyS_pread64+0x68/0x80 Signed-off-by: Tom Hromatka <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-04-02sparc: switch to RAW_COPY_USERAl Viro2-53/+9
... and drop zeroing in sparc32. Signed-off-by: Al Viro <[email protected]>
2017-04-02Merge branch 'parisc-4.11-3' of ↵Al Viro1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux into uaccess.parisc
2017-03-28sparc32: kill __ret_efault()Al Viro1-2/+0
it's unused on 32bit one as well... Signed-off-by: Al Viro <[email protected]>
2017-03-28new helper: uaccess_kernel()Al Viro2-2/+2
Signed-off-by: Al Viro <[email protected]>
2017-03-27sparc64: Add support for 2G hugepagesNitin Gupta1-1/+2
Signed-off-by: Nitin Gupta <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-03-24net: Introduce SO_INCOMING_NAPI_IDSridhar Samudrala1-0/+2
This socket option returns the NAPI ID associated with the queue on which the last frame is received. This information can be used by the apps to split the incoming flows among the threads based on the Rx queue on which they are received. If the NAPI ID actually represents a sender_cpu then the value is ignored and 0 is returned. Signed-off-by: Sridhar Samudrala <[email protected]> Signed-off-by: Alexander Duyck <[email protected]> Acked-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-03-22sock: introduce SO_MEMINFO getsockoptJosh Hunt1-0/+2
Allows reading of SK_MEMINFO_VARS via socket option. This way an application can get all meminfo related information in single socket option call instead of multiple calls. Adds helper function, sk_get_meminfo(), and uses that for both getsockopt and sock_diag_put_meminfo(). Suggested by Eric Dumazet. Signed-off-by: Josh Hunt <[email protected]> Reviewed-by: Jason Baron <[email protected]> Acked-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-03-09arch, mm: convert all architectures to use 5level-fixup.hKirill A. Shutemov1-0/+1
If an architecture uses 4level-fixup.h we don't need to do anything as it includes 5level-fixup.h. If an architecture uses pgtable-nop*d.h, define __ARCH_USE_5LEVEL_HACK before inclusion of the header. It makes asm-generic code to use 5level-fixup.h. If an architecture has 4-level paging or folds levels on its own, include 5level-fixup.h directly. Signed-off-by: Kirill A. Shutemov <[email protected]> Acked-by: Michal Hocko <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2017-03-05uaccess: drop pointless ifdefsAl Viro2-12/+0
None of those file is ever included from uapi stuff, so __KERNEL__ is always defined. None of them is ever included from assembler (they are only pulled from linux/uaccess.h, which _can't_ be included from assembler), so __ASSEMBLY__ is never defined. Signed-off-by: Al Viro <[email protected]>
2017-03-05uaccess: drop duplicate includes from asm/uaccess.hAl Viro2-4/+0
Signed-off-by: Al Viro <[email protected]>
2017-03-05uaccess: move VERIFY_{READ,WRITE} definitions to linux/uaccess.hAl Viro2-6/+0
Signed-off-by: Al Viro <[email protected]>
2017-03-02sched/headers: Prepare to remove the <linux/mm_types.h> dependency from ↵Ingo Molnar2-0/+5
<linux/sched.h> Update code that relied on sched.h including various MM types for them. This will allow us to remove the <linux/mm_types.h> include from <linux/sched.h>. Acked-by: Linus Torvalds <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Signed-off-by: Ingo Molnar <[email protected]>
2017-02-27scripts/spelling.txt: add "swith" pattern and fix typo instancesMasahiro Yamada1-1/+1
Fix typos and add the following to the scripts/spelling.txt: swith||switch swithable||switchable swithed||switched swithing||switching While we are here, fix the "update" to "updates" in the touched hunk in drivers/net/wireless/marvell/mwifiex/wmm.c. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Masahiro Yamada <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2017-02-27kprobes: move kprobe declarations to asm-generic/kprobes.hLuis R. Rodriguez1-2/+8
Often all is needed is these small helpers, instead of compiler.h or a full kprobes.h. This is important for asm helpers, in fact even some asm/kprobes.h make use of these helpers... instead just keep a generic asm file with helpers useful for asm code with the least amount of clutter as possible. Likewise we need now to also address what to do about this file for both when architectures have CONFIG_HAVE_KPROBES, and when they do not. Then for when architectures have CONFIG_HAVE_KPROBES but have disabled CONFIG_KPROBES. Right now most asm/kprobes.h do not have guards against CONFIG_KPROBES, this means most architecture code cannot include asm/kprobes.h safely. Correct this and add guards for architectures missing them. Additionally provide architectures that not have kprobes support with the default asm-generic solution. This lets us force asm/kprobes.h on the header include/linux/kprobes.h always, but most importantly we can now safely include just asm/kprobes.h on architecture code without bringing the full kitchen sink of header files. Two architectures already provided a guard against CONFIG_KPROBES on its kprobes.h: sh, arch. The rest of the architectures needed gaurds added. We avoid including any not-needed headers on asm/kprobes.h unless kprobes have been enabled. In a subsequent atomic change we can try now to remove compiler.h from include/linux/kprobes.h. During this sweep I've also identified a few architectures defining a common macro needed for both kprobes and ftrace, that of the definition of the breakput instruction up. Some refer to this as BREAKPOINT_INSTRUCTION. This must be kept outside of the #ifdef CONFIG_KPROBES guard. [[email protected]: fix arm64 build] Link: http://lkml.kernel.org/r/CAB=NE6X1WMByuARS4mZ1g9+W=LuVBnMDnh_5zyN0CLADaVh=Jw@mail.gmail.com [[email protected]: fixup for kprobes declarations moving] Link: http://lkml.kernel.org/r/[email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Luis R. Rodriguez <[email protected]> Signed-off-by: Stephen Rothwell <[email protected]> Acked-by: Masami Hiramatsu <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Ananth N Mavinakayanahalli <[email protected]> Cc: Anil S Keshavamurthy <[email protected]> Cc: David S. Miller <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: H. Peter Anvin <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Steven Rostedt <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2017-02-25Merge tag 'for-next-dma_ops' of ↵Linus Torvalds1-5/+5
git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma DMA mapping updates from Doug Ledford: "Drop IB DMA mapping code and use core DMA code instead. Bart Van Assche noted that the ib DMA mapping code was significantly similar enough to the core DMA mapping code that with a few changes it was possible to remove the IB DMA mapping code entirely and switch the RDMA stack to use the core DMA mapping code. This resulted in a nice set of cleanups, but touched the entire tree and has been kept separate for that reason." * tag 'for-next-dma_ops' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (37 commits) IB/rxe, IB/rdmavt: Use dma_virt_ops instead of duplicating it IB/core: Remove ib_device.dma_device nvme-rdma: Switch from dma_device to dev.parent RDS: net: Switch from dma_device to dev.parent IB/srpt: Modify a debug statement IB/srp: Switch from dma_device to dev.parent IB/iser: Switch from dma_device to dev.parent IB/IPoIB: Switch from dma_device to dev.parent IB/rxe: Switch from dma_device to dev.parent IB/vmw_pvrdma: Switch from dma_device to dev.parent IB/usnic: Switch from dma_device to dev.parent IB/qib: Switch from dma_device to dev.parent IB/qedr: Switch from dma_device to dev.parent IB/ocrdma: Switch from dma_device to dev.parent IB/nes: Remove a superfluous assignment statement IB/mthca: Switch from dma_device to dev.parent IB/mlx5: Switch from dma_device to dev.parent IB/mlx4: Switch from dma_device to dev.parent IB/i40iw: Remove a superfluous assignment statement IB/hns: Switch from dma_device to dev.parent ...
2017-02-23sparc64: Add 64K page size supportNitin Gupta1-1/+2
This patch depends on: [v6] sparc64: Multi-page size support - Testing Tested on Sonoma by running stream benchmark instance which allocated 48G worth of 64K pages. boot params: default_hugepagesz=64K hugepagesz=64K hugepages=1310720 Signed-off-by: Nitin Gupta <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-02-23sparc64: Multi-page size supportNitin Gupta3-11/+20
Add support for using multiple hugepage sizes simultaneously on mainline. Currently, support for 256M has been added which can be used along with 8M pages. Page tables are set like this (e.g. for 256M page): VA + (8M * x) -> PA + (8M * x) (sz bit = 256M) where x in [0, 31] and TSB is set similarly: VA + (4M * x) -> PA + (4M * x) (sz bit = 256M) where x in [0, 63] - Testing Tested on Sonoma (which supports 256M pages) by running stream benchmark instances in parallel: one instance uses 8M pages and another uses 256M pages, consuming 48G each. Boot params used: default_hugepagesz=256M hugepagesz=256M hugepages=300 hugepagesz=8M hugepages=10000 Signed-off-by: Nitin Gupta <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-02-23sparc64: Migrate hvcons irq to panicked cpuVijay Kumar1-1/+4
On panic, all other CPUs are stopped except the one which had hit panic. To keep console alive, we need to migrate hvcons irq to panicked CPU. Signed-off-by: Vijay Kumar <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-02-23sparc64: fix for user probes in high memoryEric Saint Etienne1-2/+2
When returning from the user probe code into userspace process, PC & NPC are truncated to 32 bits. Due to shared libraries getting loaded very high in the virtual address space of the process, placing a user probe inside a shared library makes the kernel return into the process at the wrong address, causing it to seg'fault most of the time. This patch prevents truncating PC and NPC. Signed-off-by: Eric Saint Etienne <[email protected]> Reviewed-by: David Aldridge <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-02-23sparc: topology_64.h: Fix condition for including cpudata.hBen Hutchings1-1/+3
We currently define macros referring to cpu_data if CONFIG_SMP is defined, but only include the declaration if CONFIG_NUMA is defined. Fixes: 541cc39433a8 ("sparc: fix a building error reported by kbuild") Signed-off-by: Ben Hutchings <[email protected]> Acked-by: Gonglei <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-02-01sched/cputime: Remove generic asm headersFrederic Weisbecker1-1/+0
cputime_t is now only used by two architectures: * powerpc (when CONFIG_VIRT_CPU_ACCOUNTING_NATIVE=y) * s390 And since the core doesn't use it anymore, we don't need any arch support from the others. So we can remove their stub implementations. A final cleanup would be to provide an efficient pure arch implementation of cputime_to_nsec() for s390 and powerpc and finally remove include/linux/cputime.h . Signed-off-by: Frederic Weisbecker <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Fenghua Yu <[email protected]> Cc: Heiko Carstens <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Martin Schwidefsky <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Rik van Riel <[email protected]> Cc: Stanislaw Gruszka <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Tony Luck <[email protected]> Cc: Wanpeng Li <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
2017-01-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds1-4/+4
Pull sparc fixes from David Miller: "Several small bug fixes and tidies, along with a fix for non-resumable memory errors triggered by userspace" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc64: Handle PIO & MEM non-resumable errors. sparc64: Zero pages on allocation for mondo and error queues. sparc: Fixed typo in sstate.c. Replaced panicing with panicking sparc: use symbolic names for tsb indexing
2017-01-24treewide: Consolidate get_dma_ops() implementationsBart Van Assche1-2/+2
Introduce a new architecture-specific get_arch_dma_ops() function that takes a struct bus_type * argument. Add get_dma_ops() in <linux/dma-mapping.h>. Signed-off-by: Bart Van Assche <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Boris Ostrovsky <[email protected]> Cc: David Woodhouse <[email protected]> Cc: Juergen Gross <[email protected]> Cc: H. Peter Anvin <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: [email protected] Cc: [email protected] Cc: Russell King <[email protected]> Cc: [email protected] Signed-off-by: Doug Ledford <[email protected]>
2017-01-24treewide: Constify most dma_map_ops structuresBart Van Assche1-4/+4
Most dma_map_ops structures are never modified. Constify these structures such that these can be write-protected. This patch has been generated as follows: git grep -l 'struct dma_map_ops' | xargs -d\\n sed -i \ -e 's/struct dma_map_ops/const struct dma_map_ops/g' \ -e 's/const struct dma_map_ops {/struct dma_map_ops {/g' \ -e 's/^const struct dma_map_ops;$/struct dma_map_ops;/' \ -e 's/const const struct dma_map_ops /const struct dma_map_ops /g'; sed -i -e 's/const \(struct dma_map_ops intel_dma_ops\)/\1/' \ $(git grep -l 'struct dma_map_ops intel_dma_ops'); sed -i -e 's/const \(struct dma_map_ops dma_iommu_ops\)/\1/' \ $(git grep -l 'struct dma_map_ops' | grep ^arch/powerpc); sed -i -e '/^struct vmd_dev {$/,/^};$/ s/const \(struct dma_map_ops[[:blank:]]dma_ops;\)/\1/' \ -e '/^static void vmd_setup_dma_ops/,/^}$/ s/const \(struct dma_map_ops \*dest\)/\1/' \ -e 's/const \(struct dma_map_ops \*dest = \&vmd->dma_ops\)/\1/' \ drivers/pci/host/*.c sed -i -e '/^void __init pci_iommu_alloc(void)$/,/^}$/ s/dma_ops->/intel_dma_ops./' arch/ia64/kernel/pci-dma.c sed -i -e 's/static const struct dma_map_ops sn_dma_ops/static struct dma_map_ops sn_dma_ops/' arch/ia64/sn/pci/pci_dma.c sed -i -e 's/(const struct dma_map_ops \*)//' drivers/misc/mic/bus/vop_bus.c Signed-off-by: Bart Van Assche <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Boris Ostrovsky <[email protected]> Cc: David Woodhouse <[email protected]> Cc: Juergen Gross <[email protected]> Cc: H. Peter Anvin <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: [email protected] Cc: [email protected] Cc: Russell King <[email protected]> Cc: [email protected] Signed-off-by: Doug Ledford <[email protected]>
2016-12-27sparc: use symbolic names for tsb indexingMike Kravetz1-4/+4
Use symbolic names MM_TSB_BASE and MM_TSB_HUGE instead of numeric values 0 and 1 in __tsb_context_switch. Code cleanup only, no functional change. Suggested-by: Sam Ravnborg <[email protected]> Signed-off-by: Mike Kravetz <[email protected]> Acked-by: Sam Ravnborg <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2016-12-24Replace <asm/uaccess.h> with <linux/uaccess.h> globallyLinus Torvalds2-2/+2
This was entirely automated, using the script by Al: PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>' sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \ $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h) to do the replacement at the end of the merge window. Requested-by: Al Viro <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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