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2014-09-26bpf: enable bpf syscall on x64 and i386Alexei Starovoitov
done as separate commit to ease conflict resolution Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
2014-09-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: "Here is a quick pull request primarily meant to address the deconfig fallout from changing SCSI_NETLINK from being used via 'select' to being used via 'depends'. I applied a set of 5 patches written by Michal Marek, and then I carefully audited all of the remaining config files, basically: 1) I scanned every arch config file, and if it mentioned CONFIG_INET or CONFIG_UNIX, I made sure it had CONFIG_NET=y 2) After that, I scanned every arch config file, and if it did not have CONFIG_NET=y I made sure it did not reference any networking config options. Finally, we have some late breaking wireless fixes in here from John Linville and co" [ And there's a sparc bpf fix snuck in too ] * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: sparc: bpf_jit: fix loads from negative offsets parisc: Update defconfigs which were missing CONFIG_NET. powerpc: Update defconfigs which were missing CONFIG_NET. s390: Update defconfigs which were missing CONFIG_NET. mips: Update some more defconfigs which were missing CONFIG_NET. sparc: Set CONFIG_NET=y in defconfigs sh: Set CONFIG_NET=y in defconfigs powerpc: Set CONFIG_NET=y in defconfigs parisc: Set CONFIG_NET=y in defconfigs mips: Set CONFIG_NET=y in defconfigs brcmfmac: Fix off by one bug in brcmf_count_20mhz_channels() ath9k: Fix NULL pointer dereference on early irq net: rfkill: gpio: Fix clock status NFC: st21nfca: Fix potential depmod dependency cycle NFC: st21nfcb: Fix depmod dependency cycle NFC: microread: Potential overflows in microread_target_discovered()
2014-09-24sparc: bpf_jit: fix loads from negative offsetsAlexei Starovoitov
- fix BPF_LD|ABS|IND from negative offsets: make sure to sign extend lower 32 bits in 64-bit register before calling C helpers from JITed code, otherwise 'int k' argument of bpf_internal_load_pointer_neg_helper() function will be added as large unsigned integer, causing packet size check to trigger and abort the program. It's worth noting that JITed code for 'A = A op K' will affect upper 32 bits differently depending whether K is simm13 or not. Since small constants are sign extended, whereas large constants are stored in temp register and zero extended. That is ok and we don't have to pay a penalty of sign extension for every sethi, since all classic BPF instructions have 32-bit semantics and we only need to set correct upper bits when transitioning from JITed code into C. - though instructions 'A &= 0' and 'A *= 0' are odd, JIT compiler should not optimize them out Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-24parisc: Update defconfigs which were missing CONFIG_NET.David S. Miller
Commit df568d8e ("scsi: Use 'depends' with LIBFC instead of 'select'.") removed what happened to be the only instance of 'select NET'. Defconfigs that were relying on the select now lack networking support. Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-24powerpc: Update defconfigs which were missing CONFIG_NET.David S. Miller
Commit df568d8e ("scsi: Use 'depends' with LIBFC instead of 'select'.") removed what happened to be the only instance of 'select NET'. Defconfigs that were relying on the select now lack networking support. Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-24s390: Update defconfigs which were missing CONFIG_NET.David S. Miller
Commit df568d8e ("scsi: Use 'depends' with LIBFC instead of 'select'.") removed what happened to be the only instance of 'select NET'. Defconfigs that were relying on the select now lack networking support. Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-24mips: Update some more defconfigs which were missing CONFIG_NET.David S. Miller
Commit df568d8e ("scsi: Use 'depends' with LIBFC instead of 'select'.") removed what happened to be the only instance of 'select NET'. Defconfigs that were relying on the select now lack networking support. Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-24sparc: Set CONFIG_NET=y in defconfigsMichal Marek
Commit 5d6be6a5 ("scsi_netlink : Make SCSI_NETLINK dependent on NET instead of selecting NET") removed what happened to be the only instance of 'select NET'. Defconfigs that were relying on the select now lack networking support. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: sparclinux@vger.kernel.org Signed-off-by: Michal Marek <mmarek@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-24sh: Set CONFIG_NET=y in defconfigsMichal Marek
Commit 5d6be6a5 ("scsi_netlink : Make SCSI_NETLINK dependent on NET instead of selecting NET") removed what happened to be the only instance of 'select NET'. Defconfigs that were relying on the select now lack networking support. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: linux-sh@vger.kernel.org Signed-off-by: Michal Marek <mmarek@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-24powerpc: Set CONFIG_NET=y in defconfigsMichal Marek
Commit 5d6be6a5 ("scsi_netlink : Make SCSI_NETLINK dependent on NET instead of selecting NET") removed what happened to be the only instance of 'select NET'. Defconfigs that were relying on the select now lack networking support. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Michal Marek <mmarek@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-24parisc: Set CONFIG_NET=y in defconfigsMichal Marek
Commit 5d6be6a5 ("scsi_netlink : Make SCSI_NETLINK dependent on NET instead of selecting NET") removed what happened to be the only instance of 'select NET'. Defconfigs that were relying on the select now lack networking support. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: linux-parisc@vger.kernel.org Signed-off-by: Michal Marek <mmarek@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-24mips: Set CONFIG_NET=y in defconfigsMichal Marek
Commit 5d6be6a5 ("scsi_netlink : Make SCSI_NETLINK dependent on NET instead of selecting NET") removed what happened to be the only instance of 'select NET'. Defconfigs that were relying on the select now lack networking support. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: linux-mips@linux-mips.org Signed-off-by: Michal Marek <mmarek@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
Pull crypto fixes from Herbert Xu: "This fixes three issues: - if ccp is loaded on a machine without ccp, it will incorrectly activate causing all requests to fail. Fixed by preventing ccp from loading if hardware isn't available. - not all IRQs were enabled for the qat driver, leading to potential stalls when it is used - disabled buggy AVX CTR implementation in aesni" * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: aesni - disable "by8" AVX CTR optimization crypto: ccp - Check for CCP before registering crypto algs crypto: qat - Enable all 32 IRQs
2014-09-24crypto: aesni - disable "by8" AVX CTR optimizationMathias Krause
The "by8" implementation introduced in commit 22cddcc7df8f ("crypto: aes - AES CTR x86_64 "by8" AVX optimization") is failing crypto tests as it handles counter block overflows differently. It only accounts the right most 32 bit as a counter -- not the whole block as all other implementations do. This makes it fail the cryptomgr test #4 that specifically tests this corner case. As we're quite late in the release cycle, just disable the "by8" variant for now. Reported-by: Romain Francoise <romain@orebokech.com> Signed-off-by: Mathias Krause <minipli@googlemail.com> Cc: Chandramouli Narayanan <mouli@linux.intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-09-23Merge branch 'parisc-3.17-7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc fixes from Helge Deller: "We avoid using -mfast-indirect-calls for 64bit kernel builds to prevent building an unbootable kernel due to latest gcc changes. In the pdc_stable/firmware-access driver we fix a few possible stack overflows and we now call secure_computing_strict() instead of secure_computing() which fixes upcoming SECCOMP patches in the for-next trees" * 'parisc-3.17-7' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Only use -mfast-indirect-calls option for 32-bit kernel builds parisc: pdc_stable.c: Avoid potential stack overflows parisc: pdc_stable.c: Cleaning up unnecessary use of memset in conjunction with strncpy parisc: ptrace: use secure_computing_strict()
2014-09-23parisc: Only use -mfast-indirect-calls option for 32-bit kernel buildsJohn David Anglin
In spite of what the GCC manual says, the -mfast-indirect-calls has never been supported in the 64-bit parisc compiler. Indirect calls have always been done using function descriptors irrespective of the -mfast-indirect-calls option. Recently, it was noticed that a function descriptor was always requested when the -mfast-indirect-calls option was specified. This caused problems when the option was used in application code and doesn't make any sense because the whole point of the option is to avoid using a function descriptor for indirect calls. Fixing this broke 64-bit kernel builds. I will fix GCC but for now we need the attached change. This results in the same kernel code as before. Signed-off-by: John David Anglin <dave.anglin@bell.net> Cc: stable@vger.kernel.org # v3.0+ Signed-off-by: Helge Deller <deller@gmx.de>
2014-09-23[IA64] refresh arch/ia64/configs/* using "make savedefconfig"Tony Luck
Prompted by a change to drivers/scsi/Kconfig which used to do a "select NET" but now does a "depends on NET". This meant that some configurations ended up without CONFIG_NET=y Signed-off-by Tony Luck <tony.luck@intel.com>
2014-09-23net: bpf: arm: make hole-faulting more robustDaniel Borkmann
Will Deacon pointed out, that the currently used opcode for filling holes, that is 0xe7ffffff, seems not robust enough ... $ echo 0xffffffe7 | xxd -r > test.bin $ arm-linux-gnueabihf-objdump -m arm -D -b binary test.bin ... 0: e7ffffff udf #65535 ; 0xffff ... while for Thumb, it ends up as ... 0: ffff e7ff vqshl.u64 q15, <illegal reg q15.5>, #63 ... which is a bit fragile. The ARM specification defines some *permanently* guaranteed undefined instruction (UDF) space, for example for ARM in ARMv7-AR, section A5.4 and for Thumb in ARMv7-M, section A5.2.6. Similarly, ptrace, kprobes, kgdb, bug and uprobes make use of such instruction as well to trap. Given mentioned section from the specification, we can find such a universe as (where 'x' denotes 'don't care'): ARM: xxxx 0111 1111 xxxx xxxx xxxx 1111 xxxx Thumb: 1101 1110 xxxx xxxx We therefore should use a more robust opcode that fits both. Russell King suggested that we can even reuse a single 32-bit word, that is, 0xe7fddef1 which will fault if executed in ARM *or* Thumb mode as done in f928d4f2a86f ("ARM: poison the vectors page"). That will still hold our requirements: $ echo 0xf1defde7 | xxd -r > test.bin $ arm-unknown-linux-gnueabi-objdump -m arm -D -b binary test.bin ... 0: e7fddef1 udf #56801 ; 0xdde1 $ echo 0xf1defde7f1defde7f1defde7 | xxd -r > test.bin $ arm-unknown-linux-gnueabi-objdump -marm -Mforce-thumb -D -b binary test.bin ... 0: def1 udf #241 ; 0xf1 2: e7fd b.n 0x0 4: def1 udf #241 ; 0xf1 6: e7fd b.n 0x4 8: def1 udf #241 ; 0xf1 a: e7fd b.n 0x8 So on ARM 0xe7fddef1 conforms to the above UDF pattern, and the low 16 bit likewise correspond to UDF in Thumb case. The 0xe7fd part is an unconditional branch back to the UDF instruction. Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Mircea Gherzan <mgherzan@gmail.com> Cc: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: arch/mips/net/bpf_jit.c drivers/net/can/flexcan.c Both the flexcan and MIPS bpf_jit conflicts were cases of simple overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-22Revert "x86/efi: Fixup GOT in all boot code paths"Linus Torvalds
This reverts commit 9cb0e394234d244fe5a97e743ec9dd7ddff7e64b. It causes my Sony Vaio Pro 11 to immediately reboot at startup. Acked-by: Ingo Molnar <mingo@kernel.org> Cc: Peter Anvin <hpa@zytor.com> Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Matt Fleming <matt.fleming@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-09-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) If the user gives us a msg_namelen of 0, don't try to interpret anything pointed to by msg_name. From Ani Sinha. 2) Fix some bnx2i/bnx2fc randconfig compilation errors. The gist of the issue is that we firstly have drivers that span both SCSI and networking. And at the top of that chain of dependencies we have things like SCSI_FC_ATTRS and SCSI_NETLINK which are selected. But since select is a sledgehammer and ignores dependencies, everything to select's SCSI_FC_ATTRS and/or SCSI_NETLINK has to also explicitly select their dependencies and so on and so forth. Generally speaking 'select' is supposed to only be used for child nodes, those which have no dependencies of their own. And this whole chain of dependencies in the scsi layer violates that rather strongly. So just make SCSI_NETLINK depend upon it's dependencies, and so on and so forth for the things selecting it (either directly or indirectly). From Anish Bhatt and Randy Dunlap. 3) Fix generation of blackhole routes in IPSEC, from Steffen Klassert. 4) Actually notice netdev feature changes in rtl_open() code, from Hayes Wang. 5) Fix divide by zero in bond enslaving, from Nikolay Aleksandrov. 6) Missing memory barrier in sunvnet driver, from David Stevens. 7) Don't leave anycast addresses around when ipv6 interface is destroyed, from Sabrina Dubroca. 8) Don't call efx_{arch}_filter_sync_rx_mode before addr_list_lock is initialized in SFC driver, from Edward Cree. 9) Fix missing DMA error checking in 3c59x, from Neal Horman. 10) Openvswitch doesn't emit OVS_FLOW_CMD_NEW notifications accidently, fix from Samuel Gauthier. 11) pch_gbe needs to select NET_PTP_CLASSIFY otherwise we can get a build error. 12) Fix macvlan regression wherein we stopped emitting broadcast/multicast frames over software devices. From Nicolas Dichtel. 13) Fix infiniband bug due to unintended overflow of skb->cb[], from Eric Dumazet. And add an assertion so this doesn't happen again. 14) dm9000_parse_dt() should return error pointers, not NULL. From Tobias Klauser. 15) IP tunneling code uses this_cpu_ptr() in preemptible contexts, fix from Eric Dumazet. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (87 commits) net: bcmgenet: call bcmgenet_dma_teardown in bcmgenet_fini_dma net: bcmgenet: fix TX reclaim accounting for fragments ipv4: do not use this_cpu_ptr() in preemptible context dm9000: Return an ERR_PTR() in all error conditions of dm9000_parse_dt() r8169: fix an if condition r8152: disable ALDPS ipoib: validate struct ipoib_cb size net: sched: shrink struct qdisc_skb_cb to 28 bytes tg3: Work around HW/FW limitations with vlan encapsulated frames macvlan: allow to enqueue broadcast pkt on virtual device pch_gbe: 'select' NET_PTP_CLASSIFY. scsi: Use 'depends' with LIBFC instead of 'select'. openvswitch: restore OVS_FLOW_CMD_NEW notifications genetlink: add function genl_has_listeners() lib: rhashtable: remove second linux/log2.h inclusion net: allow macvlans to move to net namespace 3c59x: Fix bad offset spec in skb_frag_dma_map 3c59x: Add dma error checking and recovery sparc: bpf_jit: fix support for ldx/stx mem and SKF_AD_VLAN_TAG can: at91_can: add missing prepare and unprepare of the clock ...
2014-09-22Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull KVM fixes from Paolo Bonzini: "Two very simple bugfixes, affecting all supported architectures" [ Two? There's three commits in here. Oh well, I guess Paolo didn't count the preparatory symbol export ] * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: correct null pid check in kvm_vcpu_yield_to() KVM: check for !is_zero_pfn() in kvm_is_mmio_pfn() mm: export symbol dependencies of is_zero_pfn()
2014-09-21Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-armLinus Torvalds
Pull ARM fixes from Russell King: "Fixes for ARM, the most notable being the fix from Nathan Lynch to fix the state of various registers during execve, to ensure that data can't be leaked between two executables. Fixes from Victor Kamensky for get_user() on big endian platforms, since the addition of 8-byte get_user() support broke these fairly badly. A fix from Sudeep Holla for affinity setting when hotplugging CPU 0. A fix from Stephen Boyd for a perf-induced sleep attempt while atomic. Lastly, a correctness fix for emulation of the SWP instruction on ARMv7+, and a fix for wrong carry handling when updating the translation table base address on LPAE platforms" * 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: ARM: 8149/1: perf: Don't sleep while atomic when enabling per-cpu interrupts ARM: 8148/1: flush TLS and thumbee register state during exec ARM: 8151/1: add missing exports for asm functions required by get_user macro ARM: 8137/1: fix get_user BE behavior for target variable with size of 8 bytes ARM: 8135/1: Fix in-correct barrier usage in SWP{B} emulation ARM: 8133/1: use irq_set_affinity with force=false when migrating irqs ARM: 8132/1: LPAE: drop wrong carry flag correction after adding TTBR1_OFFSET
2014-09-21parisc: ptrace: use secure_computing_strict()Helge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2014-09-19sparc: bpf_jit: fix support for ldx/stx mem and SKF_AD_VLAN_TAGAlexei Starovoitov
fix several issues in sparc BPF JIT compiler. ldx/stx related: . classic BPF instructions that access mem[] slots were not setting SEEN_MEM flag, so stack wasn't allocated. Fix that by advertising correct flags . LDX/STX instructions were missing SEEN_XREG, so register value could have leaked to user space. Fix it. . since stack for mem[] slots is allocated with 'sub %sp' instead of 'save %sp', use %sp as base register instead of %fp. . ldx mem[0] means first slot in classic BPF which should have -4 offset instead of 0. . sparc64 needs 2047 stack bias as per ABI to access stack . emit_stmem() was using LD32I macro instead of ST32I SKF_AD_VLAN_TAG* related: . SKF_AD_VLAN_TAG_PRESENT must return 1 or 0 instead of '> 0' or 0 as per classic BPF de facto standard . SKF_AD_VLAN_TAG needs to mask the field correctly Fixes: 2809a2087cc4 ("net: filter: Just In Time compiler for sparc") Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-19sparc: bpf_jit: add SKF_AD_PKTTYPE support to JITAlexei Starovoitov
commit 233577a22089 ("net: filter: constify detection of pkt_type_offset") allows us to implement simple PKTTYPE support in sparc JIT Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-19Merge tag 'pci-v3.17-fixes-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI fixes from Bjorn Helgaas: "These fix: - Boot video device detection on dual-GPU Apple systems - Hotplug fiascos on VGA switcheroo with radeon & nouveau drivers - Boot hang on Freescale i.MX6 systems - Excessive "no hotplug settings from platform" warnings In particular: Enumeration - Don't default exclusively to first video device (Bruno Prémont) PCI device hotplug - Remove "no hotplug settings from platform" warning (Bjorn Helgaas) - Add pci_ignore_hotplug() for VGA switcheroo (Bjorn Helgaas) Freescale i.MX6 - Put LTSSM in "Detect" state before disabling (Lucas Stach)" * tag 'pci-v3.17-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: vgaarb: Drop obsolete #ifndef vgaarb: Don't default exclusively to first video device with mem+io ACPIPHP / radeon / nouveau: Remove acpi_bus_no_hotplug() PCI: Remove "no hotplug settings from platform" warning PCI: Add pci_ignore_hotplug() to ignore hotplug events for a device PCI: imx6: Put LTSSM in "Detect" state before disabling it MAINTAINERS: Add Lucas Stach as co-maintainer for i.MX6 PCI driver
2014-09-19Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "Two kernel side fixes: a kprobes fix and a perf_remove_from_context() fix (which does not yet fix the migration bug which is WIP)" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf: Fix a race condition in perf_remove_from_context() kprobes/x86: Free 'optinsn' cache when range check fails
2014-09-19Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: "Misc fixes: EFI fixes, a build fix, a page table dumping (debug) fix and a clang build fix" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: efi/arm64: Fix fdt-related memory reservation x86/mm: Apply the section attribute to the variable, not its type x86/efi: Fixup GOT in all boot code paths x86/efi: Only load initrd above 4g on second try x86-64, ptdump: Mark espfix area only if existent x86, irq: Fix build error caused by 9eabc99a635a77cbf09
2014-09-19Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds
Pull MIPS fixes from Ralf Baechle: "A fair number of build fixes for various configurations. Fixes to BPF, and the BCM47xx platform code, a preemption fix for the Loongson core, a syscall auditing fix, wire up the new getrandom and memfd_create. Several patches for EVA" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (30 commits) MIPS: SmartMIPS: Disable assembler warnings MIPS: Move CPU topology macros to topology.h MIPS: Wire up new syscalls getrandom and memfd_create. MIPS: Fix a warning for virt_to_page arch/mips/net/bpf_jit.c: fix failure check MIPS: COP2: CPP macro safety fixes. MIPS: Kconfig: Select SMP symbols for CMP MIPS: ZBOOT: add missing <linux/string.h> include MIPS: IP28: Fix/clean spaces.h MIPS: IP28: Select correct L1_CACHE_SHIFT MIPS: BCM63xx: delete double assignment MIPS: Spelling s/confugrations/configurations/ MIPS: OCTEON: make get_system_type() thread-safe MIPS: CPS: Initialize EVA before bringing up VPEs from secondary cores MIPS: Malta: EVA: Rename 'eva_entry' to 'platform_eva_init' MIPS: EVA: Add new EVA header MIPS: scall64-o32: Fix indirect syscall detection MIPS: syscall: Fix AUDIT value for O32 processes on MIPS64 MIPS: Loongson: Fix COP2 usage for preemptible kernel MIPS: NL: Fix nlm_xlp_defconfig build error ...
2014-09-17MIPS: SmartMIPS: Disable assembler warningsMarkos Chandras
The kernel code overrides the default ISA as passed by the compiler in quite a few places. This has unfortunate side effects when smartmips is enabled leading to hundreds of warnings during build such as: {standard input}: Assembler messages: {standard input}:411: Warning: the `smartmips' extension requires MIPS32 revision 1 or greater {standard input}: Assembler messages: {standard input}:43: Warning: the 64-bit MIPS architecture does not support the `smartmips' extension [...] Until the kernel code is fixed properly (if possible), disable all the assembler warning messages to make the build logs readable again. This has no runtime side effects but it makes it easier to spot more critical warnings and problems during build. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/7356/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-09-16vgaarb: Don't default exclusively to first video device with mem+ioBruno Prémont
Commit 20cde694027e ("x86, ia64: Move EFI_FB vga_default_device() initialization to pci_vga_fixup()") moved boot video device detection from efifb to x86 and ia64 pci/fixup.c. For dual-GPU Apple computers above change represents a regression as code in efifb did forcefully override vga_default_device while the merge did not (vgaarb happens prior to PCI fixup). To improve on initial device selection by vgaarb (it cannot know if PCI device not behind bridges see/decode legacy VGA I/O or not), move the screen_info based check from pci_video_fixup() to vgaarb's init function and use it to refine/override decision taken while adding the individual PCI VGA devices. This way PCI fixup has no reason to adjust vga_default_device anymore but can depend on its value for flagging shadowed VBIOS. This has the nice benefit of removing duplicated code but does introduce a #if defined() block in vgaarb. Not all architectures have screen_info and would cause compile to fail without it. Link: https://bugzilla.kernel.org/show_bug.cgi?id=84461 Reported-and-Tested-By: Andreas Noever <andreas.noever@gmail.com> Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Matthew Garrett <matthew.garrett@nebula.com> CC: stable@vger.kernel.org # v3.5+
2014-09-16ARM: 8149/1: perf: Don't sleep while atomic when enabling per-cpu interruptsStephen Boyd
Rob Clark reports a sleeping while atomic bug when using perf. BUG: sleeping function called from invalid context at ../kernel/locking/mutex.c:583 in_atomic(): 1, irqs_disabled(): 128, pid: 0, name: swapper/0 ------------[ cut here ]------------ WARNING: CPU: 2 PID: 4828 at ../kernel/locking/mutex.c:479 mutex_lock_nested+0x3a0/0x3e8() DEBUG_LOCKS_WARN_ON(in_interrupt()) Modules linked in: CPU: 2 PID: 4828 Comm: Xorg.bin Tainted: G W 3.17.0-rc3-00234-gd535c45-dirty #819 [<c0216690>] (unwind_backtrace) from [<c0212174>] (show_stack+0x10/0x14) [<c0212174>] (show_stack) from [<c0867cc0>] (dump_stack+0x98/0xb8) [<c0867cc0>] (dump_stack) from [<c02492a4>] (warn_slowpath_common+0x70/0x8c) [<c02492a4>] (warn_slowpath_common) from [<c02492f0>] (warn_slowpath_fmt+0x30/0x40) [<c02492f0>] (warn_slowpath_fmt) from [<c086a3f8>] (mutex_lock_nested+0x3a0/0x3e8) [<c086a3f8>] (mutex_lock_nested) from [<c0294d08>] (irq_find_host+0x20/0x9c) [<c0294d08>] (irq_find_host) from [<c0769d50>] (of_irq_get+0x28/0x48) [<c0769d50>] (of_irq_get) from [<c057d104>] (platform_get_irq+0x1c/0x8c) [<c057d104>] (platform_get_irq) from [<c021a06c>] (cpu_pmu_enable_percpu_irq+0x14/0x38) [<c021a06c>] (cpu_pmu_enable_percpu_irq) from [<c02b1634>] (flush_smp_call_function_queue+0x88/0x178) [<c02b1634>] (flush_smp_call_function_queue) from [<c0214dc0>] (handle_IPI+0x88/0x160) [<c0214dc0>] (handle_IPI) from [<c0208930>] (gic_handle_irq+0x64/0x68) [<c0208930>] (gic_handle_irq) from [<c0212d04>] (__irq_svc+0x44/0x5c) Exception stack(0xe63ddea0 to 0xe63ddee8) dea0: 00000001 00000001 00000000 c2f3b200 c16db380 c032d4a0 e63ddf40 60010013 dec0: 00000000 001fbfd4 00000100 00000000 00000001 e63ddee8 c0284770 c02a2e30 dee0: 20010013 ffffffff [<c0212d04>] (__irq_svc) from [<c02a2e30>] (ktime_get_ts64+0x1c8/0x200) [<c02a2e30>] (ktime_get_ts64) from [<c032d4a0>] (poll_select_set_timeout+0x60/0xa8) [<c032d4a0>] (poll_select_set_timeout) from [<c032df64>] (SyS_select+0xa8/0x118) [<c032df64>] (SyS_select) from [<c020e8e0>] (ret_fast_syscall+0x0/0x48) ---[ end trace 0bb583b46342da6f ]--- INFO: lockdep is turned off. We don't really need to get the platform irq again when we're enabling or disabling the per-cpu irq. Furthermore, we don't really need to set and clear bits in the active_irqs bitmask because that's only used in the non-percpu irq case to figure out when the last CPU PMU has been disabled. Just pass the irq directly to the enable/disable functions to clean all this up. This should be slightly more efficient and also fix the scheduling while atomic bug. Fixes: bbd64559376f "ARM: perf: support percpu irqs for the CPU PMU" Reported-by: Rob Clark <robdclark@gmail.com> Acked-by: Will Deacon <will.deacon@arm.com> Cc: stable@vger.kernel.org Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-09-16ARM: 8148/1: flush TLS and thumbee register state during execNathan Lynch
The TPIDRURO and TPIDRURW registers need to be flushed during exec; otherwise TLS information is potentially leaked. TPIDRURO in particular needs careful treatment. Since flush_thread basically needs the same code used to set the TLS in arm_syscall, pull that into a common set_tls helper in tls.h and use it in both places. Similarly, TEEHBR needs to be cleared during exec as well. Clearing its save slot in thread_info isn't right as there is no guarantee that a thread switch will occur before the new program runs. Just setting the register directly is sufficient. Signed-off-by: Nathan Lynch <nathan_lynch@mentor.com> Acked-by: Will Deacon <will.deacon@arm.com> Cc: <stable@vger.kernel.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-09-16ARM: 8151/1: add missing exports for asm functions required by get_user macroVictor Kamensky
Previous commits that dealt with get_user for 64bit type missed to export proper functions, so if get_user macro with particular target/value types are used by kernel module modpost would produce 'undefined!' error. Solution is to export all required functions. Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-09-15dsa: Replace mii_bus with a generic host deviceAlexander Duyck
This change makes it so that instead of passing and storing a mii_bus we instead pass and store a host_dev. From there we can test to determine the exact type of device, and can verify it is the correct device for our switch. So for example it would be possible to pass a device pointer from a pci_dev and instead of checking for a PHY ID we could check for a vendor and/or device ID. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-15ia64: Fix syscall number for memfd_createTony Luck
Cut & paste typo from the line above. Reported-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-09-14Merge branch 'parisc-3.17-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc updates from Helge Deller: "The most important patch is a new Light Weigth Syscall (LWS) for 8, 16, 32 and 64 bit atomic CAS operations which is required in order to be able to implement the atomic gcc builtins on our platform. Other than that, we wire up the seccomp, getrandom and memfd_create syscalls, fixes a minor off-by-one bug and a wrong printk string" * 'parisc-3.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Implement new LWS CAS supporting 64 bit operations. parisc: Wire up seccomp, getrandom and memfd_create syscalls parisc: dino: fix %d confusingly prefixed with 0x in format string parisc: sys_hpux: NUL terminator is one past the end
2014-09-14mm: export symbol dependencies of is_zero_pfn()Ard Biesheuvel
In order to make the static inline function is_zero_pfn() callable by modules, export its symbol dependencies 'zero_pfn' and (for s390 and mips) 'zero_page_mask'. We need this for KVM, as CONFIG_KVM is a tristate for all supported architectures except ARM and arm64, and testing a pfn whether it refers to the zero page is required to correctly distinguish the zero page from other special RAM ranges that may also have the PG_reserved bit set, but need to be treated as MMIO memory. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-13ARM: dts: imx6sx: add multi-queue support enetFrank Li
Enable 3 queues suppport for ethernet Signed-off-by: Frank Li <Frank.Li@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-13net: filter: constify detection of pkt_type_offsetHannes Frederic Sowa
Currently we have 2 pkt_type_offset functions doing the same thing and spread across the architecture files. Remove those and replace them with a PKT_TYPE_OFFSET macro helper which gets the constant value from a zero sized sk_buff member right in front of the bitfield with offsetof. This new offset marker does not change size of struct sk_buff. Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Markos Chandras <markos.chandras@imgtec.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Daniel Borkmann <dborkman@redhat.com> Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com> Signed-off-by: Denis Kirjanov <kda@linux-powerpc.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Alexei Starovoitov <ast@plumgrid.com> Acked-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-13parisc: Implement new LWS CAS supporting 64 bit operations.Guy Martin
The current LWS cas only works correctly for 32bit. The new LWS allows for CAS operations of variable size. Signed-off-by: Guy Martin <gmsoft@tuxicoman.be> Cc: <stable@vger.kernel.org> # 3.13+ Signed-off-by: Helge Deller <deller@gmx.de>
2014-09-13Make ARCH_HAS_FAST_MULTIPLIER a real config variableLinus Torvalds
It used to be an ad-hoc hack defined by the x86 version of <asm/bitops.h> that enabled a couple of library routines to know whether an integer multiply is faster than repeated shifts and additions. This just makes it use the real Kconfig system instead, and makes x86 (which was the only architecture that did this) select the option. NOTE! Even for x86, this really is kind of wrong. If we cared, we would probably not enable this for builds optimized for netburst (P4), where shifts-and-adds are generally faster than multiplies. This patch does *not* change that kind of logic, though, it is purely a syntactic change with no code changes. This was triggered by the fact that we have other places that really want to know "do I want to expand multiples by constants by hand or not", particularly the hash generation code. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-09-12Merge tag 'stable/for-linus-3.17-b-rc4-arm-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull Xen ARM bugfix from Stefano Stabellini: "The patches fix the "xen_add_mach_to_phys_entry: cannot add" bug that has been affecting xen on arm and arm64 guests since 3.16. They require a few hypervisor side changes that just went in xen-unstable. A couple of days ago David sent out a pull request with a few other Xen fixes (it is already in master). Sorry we didn't synchronized better among us" * tag 'stable/for-linus-3.17-b-rc4-arm-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/arm: remove mach_to_phys rbtree xen/arm: reimplement xen_dma_unmap_page & friends xen/arm: introduce XENFEAT_grant_map_identity
2014-09-12Merge tag 'arm64-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Will Deacon: "Just a couple of stragglers here: - fix an issue migrating interrupts on CPU hotplug - fix a potential information leak of TLS registers across an exec (Nathan has sent a corresponding patch for arch/arm/ to rmk)" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: flush TLS registers during exec arm64: use irq_set_affinity with force=false when migrating irqs
2014-09-12ARM: 8137/1: fix get_user BE behavior for target variable with size of 8 bytesVictor Kamensky
e38361d 'ARM: 8091/2: add get_user() support for 8 byte types' commit broke V7 BE get_user call when target var size is 64 bit, but '*ptr' size is 32 bit or smaller. e38361d changed type of __r2 from 'register unsigned long' to 'register typeof(x) __r2 asm("r2")' i.e before the change even when target variable size was 64 bit, __r2 was still 32 bit. But after e38361d commit, for target var of 64 bit size, __r2 became 64 bit and now it should occupy 2 registers r2, and r3. The issue in BE case that r3 register is least significant word of __r2 and r2 register is most significant word of __r2. But __get_user_4 still copies result into r2 (most significant word of __r2). Subsequent code copies from __r2 into x, but for situation described it will pick up only garbage from r3 register. Special __get_user_64t_(124) functions are introduced. They are similar to corresponding __get_user_(124) function but result stored in r3 register (lsw in case of 64 bit __r2 in BE image). Those function are used by get_user macro in case of BE and target var size is 64bit. Also changed __get_user_lo8 name into __get_user_32t_8 to get consistent naming accross all cases. Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org> Suggested-by: Daniel Thompson <daniel.thompson@linaro.org> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-09-12ARM: 8135/1: Fix in-correct barrier usage in SWP{B} emulationPunit Agrawal
According to the ARM ARMv7, explicit barriers are necessary when using synchronisation primitives such as SWP{B}. The use of these instructions does not automatically imply a barrier and any ordering requirements by the software must be explicitly expressed with the use of suitable barriers. Based on this, remove the barriers from SWP{B} emulation. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Punit Agrawal <punit.agrawal@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-09-12Merge tag 'fbdev-fixes-3.17' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux Pull fbdev fixes from Tomi Valkeinen: "Minor fixes for amba-clcd and video DT bindings" * tag 'fbdev-fixes-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: video: ARM CLCD: Fix color model capabilities for DT platforms video: fix composite video connector compatible string
2014-09-11Merge tag 'stable/for-linus-3.17-b-rc4-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull Xen bug fixes from David Vrabel: - fix for PVHVM suspend/resume and migration - don't pointlessly retry certain ballooning ops - fix gntalloc when grefs have run out. - fix PV boot if KSALR is enable or very large modules are used. * tag 'stable/for-linus-3.17-b-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: x86/xen: don't copy bogus duplicate entries into kernel page tables xen/gntalloc: safely delete grefs in add_grefs() undo path xen/gntalloc: fix oops after runnning out of grant refs xen/balloon: cancel ballooning if adding new memory failed xen/manage: Always freeze/thaw processes when suspend/resuming