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2018-03-01rtc: export rtc_nvmem_register() to driversAlexandre Belloni
Export rtc_nvmem_register() so it can be called from drivers instead of only the core. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2018-03-01rtc: nvmem: allow registering the nvmem device before the rtcAlexandre Belloni
Switch the parent of the nvmem device to the parent of the rtc device so it can be registered before the RTC. This is a small change in the ABI as the nvmem moves out of the /sys/class/rtc/rtcX folder to be under the parent device folder (that is where the previous nvram files where registered). However, it is still available under its correct location, /sys/bus/nvmem/devices which is the one that should be used by userspace applications. The other benefit is that the nvmem device can stay registered even if the rtc registration fails. Or it is possible to not register the rtc if the nvmem registration failed. Finally, it makes a lot of sense for devices that actually have different i2c or spi addresses for the RTC and the EEPROM. That is basically how it would end up when using MFD or even completely separate devices. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2018-02-14rtc: nvmem: disallow registering nvmem more than onceAlexandre Belloni
Make rtc_nvmem_register return -EBUSY when an nvmem is already registered for that RTC. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2018-02-14rtc: nvmem: return error valuesAlexandre Belloni
In case of error, make rtc_nvmem_register() able to return an error value to its caller. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2018-02-14rtc: nvmem: pass nvmem_config to rtc_nvmem_register()Alexandre Belloni
To be able to remove nvmem_config from struct rtc_device, pass it as a parameter to rtc_nvmem_register. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2018-02-13rtc: ds1302: remove redundant initializations of pointer bpColin Ian King
Pointe bp is being initialized and this value is never read, it is being updated to the same value later just before it is going to be used. Remove the initialization as it is never read and keep the setting of bp closer to the use of bp. Cleans up clang warnings: drivers/rtc/rtc-ds1302.c:115:7: warning: Value stored to 'bp' during its initialization is never read drivers/rtc/rtc-ds1302.c:46:7: warning: Value stored to 'bp' during its initialization is never read Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2018-02-13rtc: goldfish: Add missing MODULE_LICENSEJames Hogan
Fix the following warning in MIPS allmodconfig by adding a MODULE_LICENSE() at the end of rtc-goldfish.c, based on the file header comment which says GNU General Public License version 2: WARNING: modpost: missing MODULE_LICENSE() in drivers/rtc/rtc-goldfish.o Fixes: f22d9cdcb5eb ("rtc: goldfish: Add RTC driver for Android emulator") Signed-off-by: James Hogan <jhogan@kernel.org> Cc: Miodrag Dinic <miodrag.dinic@mips.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com> Cc: linux-rtc@vger.kernel.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2018-02-13rtc: Fix overflow when converting time64_t to rtc_timeBaolin Wang
If we convert one large time values to rtc_time, in the original formula 'days * 86400' can be overflowed in 'unsigned int' type to make the formula get one incorrect remain seconds value. Thus we can use div_s64_rem() function to avoid this situation. Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2018-02-13rtc: Add tracepoints for RTC systemBaolin Wang
It will be more helpful to add some tracepoints to track RTC actions when debugging RTC driver. Below sample is that we set/read the RTC time, then set 2 alarms, so we can see the trace logs: set/read RTC time: kworker/0:1-67 [000] 21.814245: rtc_set_time: UTC (1510301580) (0) kworker/0:1-67 [000] 21.814312: rtc_read_time: UTC (1510301580) (0) set the first alarm timer: kworker/0:1-67 [000] 21.829238: rtc_timer_enqueue: RTC timer:(ffffffc15eb49bc8) expires:1510301700000000000 period:0 kworker/0:1-67 [000] 22.018279: rtc_set_alarm: UTC (1510301700) (0) set the second alarm timer: kworker/0:1-67 [000] 22.230284: rtc_timer_enqueue: RTC timer:(ffffff80088e6430) expires:1510301820000000000 period:0 the first alarm timer was expired: kworker/0:1-67 [000] 145.155584: rtc_timer_dequeue: RTC timer:(ffffffc15eb49bc8) expires:1510301700000000000 period:0 kworker/0:1-67 [000] 145.155593: rtc_timer_fired: RTC timer:(ffffffc15eb49bc8) expires:1510301700000000000 period:0 kworker/0:1-67 [000] 145.172504: rtc_set_alarm: UTC (1510301820) (0) the second alarm timer was expired: kworker/0:1-67 [000] 269.102353: rtc_timer_dequeue: RTC timer:(ffffff80088e6430) expires:1510301820000000000 period:0 kworker/0:1-67 [000] 269.102360: rtc_timer_fired: RTC timer:(ffffff80088e6430) expires:1510301820000000000 period:0 disable alarm irq: kworker/0:1-67 [000] 269.102469: rtc_alarm_irq_enable: disable RTC alarm IRQ (0) Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2018-02-11vfs: do bulk POLL* -> EPOLL* replacementLinus Torvalds
This is the mindless scripted replacement of kernel use of POLL* variables as described by Al, done by this script: for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'` for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done done with de-mangling cleanups yet to come. NOTE! On almost all architectures, the EPOLL* constants have the same values as the POLL* constants do. But they keyword here is "almost". For various bad reasons they aren't the same, and epoll() doesn't actually work quite correctly in some cases due to this on Sparc et al. The next patch from Al will sort out the final differences, and we should be all done. Scripted-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-02-11Merge branch 'work.poll2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull more poll annotation updates from Al Viro: "This is preparation to solving the problems you've mentioned in the original poll series. After this series, the kernel is ready for running for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'` for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done done as a for bulk search-and-replace. After that, the kernel is ready to apply the patch to unify {de,}mangle_poll(), and then get rid of kernel-side POLL... uses entirely, and we should be all done with that stuff. Basically, that's what you suggested wrt KPOLL..., except that we can use EPOLL... instead - they already are arch-independent (and equal to what is currently kernel-side POLL...). After the preparations (in this series) switch to returning EPOLL... from ->poll() instances is completely mechanical and kernel-side POLL... can go away. The last step (killing kernel-side POLL... and unifying {de,}mangle_poll() has to be done after the search-and-replace job, since we need userland-side POLL... for unified {de,}mangle_poll(), thus the cherry-pick at the last step. After that we will have: - POLL{IN,OUT,...} *not* in __poll_t, so any stray instances of ->poll() still using those will be caught by sparse. - eventpoll.c and select.c warning-free wrt __poll_t - no more kernel-side definitions of POLL... - userland ones are visible through the entire kernel (and used pretty much only for mangle/demangle) - same behavior as after the first series (i.e. sparc et.al. epoll(2) working correctly)" * 'work.poll2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: annotate ep_scan_ready_list() ep_send_events_proc(): return result via esed->res preparation to switching ->poll() to returning EPOLL... add EPOLLNVAL, annotate EPOLL... and event_poll->event use linux/poll.h instead of asm/poll.h xen: fix poll misannotation smc: missing poll annotations
2018-02-10Merge tag 'for-linus-20180210' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block fixes from Jens Axboe: "A few fixes to round off the merge window on the block side: - a set of bcache fixes by way of Michael Lyle, from the usual bcache suspects. - add a simple-to-hook-into function for bpf EIO error injection. - fix blk-wbt that mischarectized flushes as reads. Improve the logic so that flushes and writes are accounted as writes, and only reads as reads. From me. - fix requeue crash in BFQ, from Paolo" * tag 'for-linus-20180210' of git://git.kernel.dk/linux-block: block, bfq: add requeue-request hook bcache: fix for data collapse after re-attaching an attached device bcache: return attach error when no cache set exist bcache: set writeback_rate_update_seconds in range [1, 60] seconds bcache: fix for allocator and register thread race bcache: set error_limit correctly bcache: properly set task state in bch_writeback_thread() bcache: fix high CPU occupancy during journal bcache: add journal statistic block: Add should_fail_bio() for bpf error injection blk-wbt: account flush requests correctly
2018-02-10Merge tag 'platform-drivers-x86-v4.16-3' of git://github.com/dvhart/linux-pdx86Linus Torvalds
Pull x86 platform driver updates from Darren Hart: "Mellanox fixes and new system type support. Mostly data for new system types with a correction and an uninitialized variable fix" [ Pulling from github because git.infradead.org currently seems to be down for some reason, but Darren had a backup location - Linus ] * tag 'platform-drivers-x86-v4.16-3' of git://github.com/dvhart/linux-pdx86: platform/x86: mlx-platform: Add support for new 200G IB and Ethernet systems platform/x86: mlx-platform: Add support for new msn201x system type platform/x86: mlx-platform: Add support for new msn274x system type platform/x86: mlx-platform: Fix power cable setting for msn21xx family platform/x86: mlx-platform: Add define for the negative bus platform/x86: mlx-platform: Use defines for bus assignment platform/mellanox: mlxreg-hotplug: Fix uninitialized variable
2018-02-10Merge tag 'chrome-platform-for-linus-4.16' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform Pull chrome platform updates from Benson Leung: - move cros_ec_dev to drivers/mfd - other small maintenance fixes [ The cros_ec_dev movement came in earlier through the MFD tree - Linus ] * tag 'chrome-platform-for-linus-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform: platform/chrome: Use proper protocol transfer function platform/chrome: cros_ec_lpc: Add support for Google Glimmer platform/chrome: cros_ec_lpc: Register the driver if ACPI entry is missing. platform/chrome: cros_ec_lpc: remove redundant pointer request cros_ec: fix nul-termination for firmware build info platform/chrome: chromeos_laptop: make chromeos_laptop const
2018-02-10Merge tag 'kvm-4.16-1' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull KVM updates from Radim Krčmář: "ARM: - icache invalidation optimizations, improving VM startup time - support for forwarded level-triggered interrupts, improving performance for timers and passthrough platform devices - a small fix for power-management notifiers, and some cosmetic changes PPC: - add MMIO emulation for vector loads and stores - allow HPT guests to run on a radix host on POWER9 v2.2 CPUs without requiring the complex thread synchronization of older CPU versions - improve the handling of escalation interrupts with the XIVE interrupt controller - support decrement register migration - various cleanups and bugfixes. s390: - Cornelia Huck passed maintainership to Janosch Frank - exitless interrupts for emulated devices - cleanup of cpuflag handling - kvm_stat counter improvements - VSIE improvements - mm cleanup x86: - hypervisor part of SEV - UMIP, RDPID, and MSR_SMI_COUNT emulation - paravirtualized TLB shootdown using the new KVM_VCPU_PREEMPTED bit - allow guests to see TOPOEXT, GFNI, VAES, VPCLMULQDQ, and more AVX512 features - show vcpu id in its anonymous inode name - many fixes and cleanups - per-VCPU MSR bitmaps (already merged through x86/pti branch) - stable KVM clock when nesting on Hyper-V (merged through x86/hyperv)" * tag 'kvm-4.16-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (197 commits) KVM: PPC: Book3S: Add MMIO emulation for VMX instructions KVM: PPC: Book3S HV: Branch inside feature section KVM: PPC: Book3S HV: Make HPT resizing work on POWER9 KVM: PPC: Book3S HV: Fix handling of secondary HPTEG in HPT resizing code KVM: PPC: Book3S PR: Fix broken select due to misspelling KVM: x86: don't forget vcpu_put() in kvm_arch_vcpu_ioctl_set_sregs() KVM: PPC: Book3S PR: Fix svcpu copying with preemption enabled KVM: PPC: Book3S HV: Drop locks before reading guest memory kvm: x86: remove efer_reload entry in kvm_vcpu_stat KVM: x86: AMD Processor Topology Information x86/kvm/vmx: do not use vm-exit instruction length for fast MMIO when running nested kvm: embed vcpu id to dentry of vcpu anon inode kvm: Map PFN-type memory regions as writable (if possible) x86/kvm: Make it compile on 32bit and with HYPYERVISOR_GUEST=n KVM: arm/arm64: Fixup userspace irqchip static key optimization KVM: arm/arm64: Fix userspace_irqchip_in_use counting KVM: arm/arm64: Fix incorrect timer_is_pending logic MAINTAINERS: update KVM/s390 maintainers MAINTAINERS: add Halil as additional vfio-ccw maintainer MAINTAINERS: add David as a reviewer for KVM/s390 ...
2018-02-09Merge tag 'kbuild-v4.16-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull more Kbuild updates from Masahiro Yamada: "Makefile changes: - enable unused-variable warning that was wrongly disabled for clang Kconfig changes: - warn about blank 'help' and fix existing instances - fix 'choice' behavior to not write out invisible symbols - fix misc weirdness Coccinell changes: - fix false positive of free after managed memory alloc detection - improve performance of NULL dereference detection" * tag 'kbuild-v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (21 commits) kconfig: remove const qualifier from sym_expand_string_value() kconfig: add xrealloc() helper kconfig: send error messages to stderr kconfig: echo stdin to stdout if either is redirected kconfig: remove check_stdin() kconfig: remove 'config*' pattern from .gitignnore kconfig: show '?' prompt even if no help text is available kconfig: do not write choice values when their dependency becomes n coccinelle: deref_null: avoid useless computation coccinelle: devm_free: reduce false positives kbuild: clang: disable unused variable warnings only when constant kconfig: Warn if help text is blank nios2: kconfig: Remove blank help text arm: vt8500: kconfig: Remove blank help text MIPS: kconfig: Remove blank help text MIPS: BCM63XX: kconfig: Remove blank help text lib/Kconfig.debug: Remove blank help text Staging: rtl8192e: kconfig: Remove blank help text Staging: rtl8192u: kconfig: Remove blank help text mmc: kconfig: Remove blank help text ...
2018-02-09platform/x86: mlx-platform: Add support for new 200G IB and Ethernet systemsVadim Pasternak
It adds support for new Mellanox system types of basic classes qmb7, sn34, sn37, containing systems QMB700 (40x200GbE InfiniBand switch), SN3700 (32x200GbE and 16x400GbE Ethernet switch) and SN3410 (6x400GbE plus 48x50GbE Ethernet switch). These are the Top of the Rack systems, equipped with Mellanox COM-Express carrier board and switch board with Mellanox Quantum device, which supports InfiniBand switching with 40X200G ports and line rate of up to HDR speed or with Mellanox Spectrum-2 device, which supports Ethernet switching with 32X200G ports line rate of up to HDR speed. Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2018-02-09platform/x86: mlx-platform: Add support for new msn201x system typeVadim Pasternak
It adds support for new Mellanox system types of basic half unit size class msn201x, containing system MSN2010 (18x10GbE plus 4x4x25GbE) half and its derivatives. This is the Top of the Rack system, equipped with Mellanox Small Form Factor carrier board and switch board with Mellanox Spectrum device, which supports Ethernet switching with 32X100G ports line rate of up to EDR speed. Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2018-02-09platform/x86: mlx-platform: Add support for new msn274x system typeVadim Pasternak
It adds support for new Mellanox system types of basic class msn274x, containing system MSN2740 (32x100GbE Ethernet switch with cost reduction) and its derivatives. These are the Top of the Rack system, equipped with Mellanox Small Form Factor carrier board and switch board with Mellanox Spectrum device, which supports Ethernet switching with 32X100G ports line rate of up to EDR speed. Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2018-02-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Make allocations less aggressive in x_tables, from Minchal Hocko. 2) Fix netfilter flowtable Kconfig deps, from Pablo Neira Ayuso. 3) Fix connection loss problems in rtlwifi, from Larry Finger. 4) Correct DRAM dump length for some chips in ath10k driver, from Yu Wang. 5) Fix ABORT handling in rxrpc, from David Howells. 6) Add SPDX tags to Sun networking drivers, from Shannon Nelson. 7) Some ipv6 onlink handling fixes, from David Ahern. 8) Netem packet scheduler interval calcualtion fix from Md. Islam. 9) Don't put crypto buffers on-stack in rxrpc, from David Howells. 10) Fix handling of error non-delivery status in netlink multicast delivery over multiple namespaces, from Nicolas Dichtel. 11) Missing xdp flush in tuntap driver, from Jason Wang. 12) Synchonize RDS protocol netns/module teardown with rds object management, from Sowini Varadhan. 13) Add nospec annotations to mpls, from Dan Williams. 14) Fix SKB truesize handling in TIPC, from Hoang Le. 15) Interrupt masking fixes in stammc from Niklas Cassel. 16) Don't allow ptr_ring objects to be sized outside of kmalloc's limits, from Jason Wang. 17) Don't allow SCTP chunks to be built which will have a length exceeding the chunk header's 16-bit length field, from Alexey Kodanev. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (82 commits) ibmvnic: Remove skb->protocol checks in ibmvnic_xmit bpf: fix rlimit in reuseport net selftest sctp: verify size of a new chunk in _sctp_make_chunk() s390/qeth: fix SETIP command handling s390/qeth: fix underestimated count of buffer elements ptr_ring: try vmalloc() when kmalloc() fails ptr_ring: fail early if queue occupies more than KMALLOC_MAX_SIZE net: stmmac: remove redundant enable of PMT irq net: stmmac: rename GMAC_INT_DEFAULT_MASK for dwmac4 net: stmmac: discard disabled flags in interrupt status register ibmvnic: Reset long term map ID counter tools/libbpf: handle issues with bpf ELF objects containing .eh_frames selftests/bpf: add selftest that use test_libbpf_open selftests/bpf: add test program for loading BPF ELF files tools/libbpf: improve the pr_debug statements to contain section numbers bpf: Sync kernel ABI header with tooling header for bpf_common.h net: phy: fix phy_start to consider PHY_IGNORE_INTERRUPT net: thunder: change q_len's type to handle max ring size tipc: fix skb truesize/datasize ratio control net/sched: cls_u32: fix cls_u32 on filter replace ...
2018-02-09Merge branch 'for-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending Pull SCSI target updates from Nicholas Bellinger: "The highlights include: - numerous target-core-user improvements related to queue full and timeout handling. (MNC) - prevent target-core-user corruption when invalid data page is requested. (MNC) - add target-core device action configfs attributes to allow user-space to trigger events separate from existing attributes exposed to end-users. (MNC) - fix iscsi-target NULL pointer dereference 4.6+ regression in CHAP error path. (David Disseldorp) - avoid target-core backend UNMAP callbacks if range is zero. (Andrei Vagin) - fix a iscsi-target 4.14+ regression related multiple PDU logins, that was exposed due to removal of TCP prequeue support. (Florian Westphal + MNC) Also, there is a iser-target bug still being worked on for post -rc1 code to address a long standing issue resulting in persistent ib_post_send() failures, for RNICs with small max_send_sge" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (36 commits) iscsi-target: make sure to wake up sleeping login worker tcmu: Fix trailing semicolon tcmu: fix cmd user after free target: fix destroy device in target_configure_device tcmu: allow userspace to reset ring target core: add device action configfs files tcmu: fix error return code in tcmu_configure_device() target_core_user: add cmd id to broken ring message target: add SAM_STAT_BUSY sense reason tcmu: prevent corruption when invalid data page requested target: don't call an unmap callback if a range length is zero target/iscsi: avoid NULL dereference in CHAP auth error path cxgbit: call neigh_event_send() to update MAC address target: tcm_loop: Use seq_puts() in tcm_loop_show_info() target: tcm_loop: Delete an unnecessary return statement in tcm_loop_submission_work() target: tcm_loop: Delete two unnecessary variable initialisations in tcm_loop_issue_tmr() target: tcm_loop: Combine substrings for 26 messages target: tcm_loop: Improve a size determination in two functions target: tcm_loop: Delete an error message for a failed memory allocation in four functions sbp-target: Delete an error message for a failed memory allocation in three functions ...
2018-02-09Merge tag 'fbdev-v4.16-fix' of git://github.com/bzolnier/linuxLinus Torvalds
Pull fbdev fix from Bartlomiej Zolnierkiewicz: "Fix building of the omapfb driver (Tomi Valkeinen)" * tag 'fbdev-v4.16-fix' of git://github.com/bzolnier/linux: video: omapfb: fix missing #includes
2018-02-09ibmvnic: Remove skb->protocol checks in ibmvnic_xmitJohn Allen
Having these checks in ibmvnic_xmit causes problems with VLAN tagging and balance-alb/tlb bonding modes. The restriction they imposed can be removed. Signed-off-by: John Allen <jallen@linux.vnet.ibm.com> Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-09s390/qeth: fix SETIP command handlingJulian Wiedmann
send_control_data() applies some special handling to SETIP v4 IPA commands. But current code parses *all* command types for the SETIP command code. Limit the command code check to IPA commands. Fixes: 5b54e16f1a54 ("qeth: do not spin for SETIP ip assist command") Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-09s390/qeth: fix underestimated count of buffer elementsUrsula Braun
For a memory range/skb where the last byte falls onto a page boundary (ie. 'end' is of the form xxx...xxx001), the PFN_UP() part of the calculation currently doesn't round up to the next PFN due to an off-by-one error. Thus qeth believes that the skb occupies one page less than it actually does, and may select a IO buffer that doesn't have enough spare buffer elements to fit all of the skb's data. HW detects this as a malformed buffer descriptor, and raises an exception which then triggers device recovery. Fixes: 2863c61334aa ("qeth: refactor calculation of SBALE count") Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-09net: stmmac: remove redundant enable of PMT irqNiklas Cassel
For dwmac4, GMAC_INT_DEFAULT_ENABLE already includes GMAC_INT_PMT_EN, so it is redundant to check if hw->pmt is set, and if so, setting the bit again. For dwmac1000, GMAC_INT_DEFAULT_MASK does not include GMAC_INT_DISABLE_PMT, so it is redundant to check if hw->pmt is set, and if so, clearing an already cleared bit. Improve code readability by removing this redundant code. Signed-off-by: Niklas Cassel <niklas.cassel@axis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-09net: stmmac: rename GMAC_INT_DEFAULT_MASK for dwmac4Niklas Cassel
GMAC_INT_DEFAULT_MASK is written to the interrupt enable register. In previous versions of the IP (e.g. dwmac1000), this register was instead an interrupt mask register. To improve clarity and reflect reality, rename GMAC_INT_DEFAULT_MASK to GMAC_INT_DEFAULT_ENABLE. Signed-off-by: Niklas Cassel <niklas.cassel@axis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-09net: stmmac: discard disabled flags in interrupt status registerNiklas Cassel
The interrupt status register in both dwmac1000 and dwmac4 ignores interrupt enable (for dwmac4) / interrupt mask (for dwmac1000). Therefore, if we want to check only the bits that can actually trigger an irq, we have to filter the interrupt status register manually. Commit 0a764db10337 ("stmmac: Discard masked flags in interrupt status register") fixed this for dwmac1000. Fix the same issue for dwmac4. Just like commit 0a764db10337 ("stmmac: Discard masked flags in interrupt status register"), this makes sure that we do not get spurious link up/link down prints. Signed-off-by: Niklas Cassel <niklas.cassel@axis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-09ibmvnic: Reset long term map ID counterThomas Falcon
When allocating RX or TX buffer pools, the driver needs to provide a unique mapping ID to firmware for each pool. This value is assigned using a counter which is incremented after a new pool is created. The ID can be an integer ranging from 1-255. When migrating to a device that requests a different number of queues, this value was not being reset properly. As a result, after enough migrations, the counter exceeded the upper bound and pool creation failed. This is fixed by resetting the counter to one in this case. Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfDavid S. Miller
Daniel Borkmann says: ==================== pull-request: bpf 2018-02-09 The following pull-request contains BPF updates for your *net* tree. The main changes are: 1) Two fixes for BPF sockmap in order to break up circular map references from programs attached to sockmap, and detaching related sockets in case of socket close() event. For the latter we get rid of the smap_state_change() and plug into ULP infrastructure, which will later also be used for additional features anyway such as TX hooks. For the second issue, dependency chain is broken up via map release callback to free parse/verdict programs, all from John. 2) Fix a libbpf relocation issue that was found while implementing XDP support for Suricata project. Issue was that when clang was invoked with default target instead of bpf target, then various other e.g. debugging relevant sections are added to the ELF file that contained relocation entries pointing to non-BPF related sections which libbpf trips over instead of skipping them. Test cases for libbpf are added as well, from Jesper. 3) Various misc fixes for bpftool and one for libbpf: a small addition to libbpf to make sure it recognizes all standard section prefixes. Then, the Makefile in bpftool/Documentation is improved to explicitly check for rst2man being installed on the system as we otherwise risk installing empty man pages; the man page for bpftool-map is corrected and a set of missing bash completions added in order to avoid shipping bpftool where the completions are only partially working, from Quentin. 4) Fix applying the relocation to immediate load instructions in the nfp JIT which were missing a shift, from Jakub. 5) Two fixes for the BPF kernel selftests: handle CONFIG_BPF_JIT_ALWAYS_ON=y gracefully in test_bpf.ko module and mark them as FLAG_EXPECTED_FAIL in this case; and explicitly delete the veth devices in the two tests test_xdp_{meta,redirect}.sh before dismantling the netnses as when selftests are run in batch mode, then workqueue to handle destruction might not have finished yet and thus veth creation in next test under same dev name would fail, from Yonghong. 6) Fix test_kmod.sh to check the test_bpf.ko module path before performing an insmod, and fallback to modprobe. Especially the latter is useful when having a device under test that has the modules installed instead, from Naresh. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-09Merge tag 'for-linus-4.16-rc1-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen fixes from Juergen Gross: "Only five small fixes for issues when running under Xen" * tag 'for-linus-4.16-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen: Fix {set,clear}_foreign_p2m_mapping on autotranslating guests pvcalls-back: do not return error on inet_accept EAGAIN xen-netfront: Fix race between device setup and open xen/grant-table: Use put_page instead of free_page x86/xen: init %gs very early to avoid page faults with stack protector
2018-02-09Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Heiko Carstens: "The main thing in this merge is the defense for the Spectre vulnerabilities. But there are other updates as well, the changes in more detail: - An s390 specific implementation of the array_index_mask_nospec function to the defense against spectre v1 - Two patches to utilize the new PPA-12/PPA-13 instructions to run the kernel and/or user space with reduced branch predicton. - The s390 variant of the 'retpoline' spectre v2 defense called 'expoline'. There is no return instruction for s390, instead an indirect branch is used for function return The s390 defense mechanism for indirect branches works by using an execute-type instruction with the indirect branch as the target of the execute. In effect that turns off the prediction for the indirect branch. - Scrub registers in entry.S that contain user controlled values to prevent the speculative use of these values. - Re-add the second parameter for the s390 specific runtime instrumentation system call and move the header file to uapi. The second parameter will continue to do nothing but older kernel versions only accepted valid real-time signal numbers. The details will be documented in the man-page for the system call. - Corrections and improvements for the s390 specific documentation - Add a line to /proc/sysinfo to display the CPU model dependent license-internal-code identifier - A header file include fix for eadm. - An error message fix in the kprobes code. - The removal of an outdated ARCH_xxx select statement" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/kconfig: Remove ARCH_WANTS_PROT_NUMA_PROT_NONE select s390: introduce execute-trampolines for branches s390: run user space and KVM guests with modified branch prediction s390: add options to change branch prediction behaviour for the kernel s390/alternative: use a copy of the facility bit mask s390: add optimized array_index_mask_nospec s390: scrub registers on kernel entry and KVM exit s390/cio: fix kernel-doc usage s390/runtime_instrumentation: re-add signum system call parameter s390/cpum_cf: correct counter number of LAST_HOST_TRANSLATIONS s390/kprobes: Fix %p uses in error messages s390/runtime instrumentation: provide uapi header file s390/sysinfo: add and display licensed internal code identifier s390/docs: reword airq section s390/docs: mention subchannel types s390/cmf: fix kerneldoc s390/eadm: fix CONFIG_BLOCK include dependency
2018-02-09Merge tag 'acpi-part2-4.16-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more ACPI updates from Rafael Wysocki: "These are mostly fixes and cleanups, a few new quirks, a couple of updates related to the handling of ACPI tables and ACPICA copyrights refreshment. Specifics: - Update the ACPICA kernel code to upstream revision 20180105 including: * Assorted fixes (Jung-uk Kim) * Support for X32 ABI compilation (Anuj Mittal) * Update of ACPICA copyrights to 2018 (Bob Moore) - Prepare for future modifications to avoid executing the _STA control method too early (Hans de Goede) - Make the processor performance control library code ignore _PPC notifications if they cannot be handled and fix up the C1 idle state definition when it is used as a fallback state (Chen Yu, Yazen Ghannam) - Make it possible to use the SPCR table on x86 and to replace the original IORT table with a new one from initrd (Prarit Bhargava, Shunyong Yang) - Add battery-related quirks for Asus UX360UA and UX410UAK and add quirks for table parsing on Dell XPS 9570 and Precision M5530 (Kai Heng Feng) - Address static checker warnings in the CPPC code (Gustavo Silva) - Avoid printing a raw pointer to the kernel log in the smart battery driver (Greg Kroah-Hartman)" * tag 'acpi-part2-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: sbshc: remove raw pointer from printk() message ACPI: SPCR: Make SPCR available to x86 ACPI / CPPC: Use 64-bit arithmetic instead of 32-bit ACPI / tables: Add IORT to injectable table list ACPI / bus: Parse tables as term_list for Dell XPS 9570 and Precision M5530 ACPICA: Update version to 20180105 ACPICA: All acpica: Update copyrights to 2018 ACPI / processor: Set default C1 idle state description ACPI / battery: Add quirk for Asus UX360UA and UX410UAK ACPI: processor_perflib: Do not send _PPC change notification if not ready ACPI / scan: Use acpi_bus_get_status() to initialize ACPI_TYPE_DEVICE devs ACPI / bus: Do not call _STA on battery devices with unmet dependencies PCI: acpiphp_ibm: prepare for acpi_get_object_info() no longer returning status ACPI: export acpi_bus_get_status_handle() ACPICA: Add a missing pair of parentheses ACPICA: Prefer ACPI_TO_POINTER() over ACPI_ADD_PTR() ACPICA: Avoid NULL pointer arithmetic ACPICA: Linux: add support for X32 ABI compilation ACPI / video: Use true for boolean value
2018-02-09Merge tag 'pm-part2-4.16-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more power management updates from Rafael Wysocki: "These are mostly fixes and cleanups and removal of the no longer needed at32ap-cpufreq driver. Specifics: - Drop the at32ap-cpufreq driver which is useless after the removal of the corresponding arch (Corentin LABBE). - Fix a regression from the 4.14 cycle in the APM idle driver by making it initialize the polling state properly (Rafael Wysocki). - Fix a crash on failing system suspend due to a missing check in the cpufreq core (Bo Yan). - Make the intel_pstate driver initialize the hardware-managed P-state control (HWP) feature on CPU0 upon resume from system suspend if HWP had been enabled before the system was suspended (Chen Yu). - Fix up the SCPI cpufreq driver after recent changes (Sudeep Holla, Wei Yongjun). - Avoid pointer subtractions during frequency table walks in cpufreq (Dominik Brodowski). - Avoid the check for ProcFeedback in ST/CZ in the cpufreq driver for AMD processors and add a MODULE_ALIAS for cpufreq on ARM IMX (Akshu Agrawal, Nicolas Chauvet). - Fix the prototype of swsusp_arch_resume() on x86 (Arnd Bergmann). - Fix up the parsing of power domains DT data (Ulf Hansson)" * tag 'pm-part2-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: arm: imx: Add MODULE_ALIAS for cpufreq cpufreq: Add and use cpufreq_for_each_{valid_,}entry_idx() cpufreq: intel_pstate: Enable HWP during system resume on CPU0 cpufreq: scpi: fix error return code in scpi_cpufreq_init() x86: hibernate: fix swsusp_arch_resume() prototype PM / domains: Fix up domain-idle-states OF parsing cpufreq: scpi: fix static checker warning cdev isn't an ERR_PTR cpufreq: remove at32ap-cpufreq cpufreq: AMD: Ignore the check for ProcFeedback in ST/CZ x86: PM: Make APM idle driver initialize polling state cpufreq: Skip cpufreq resume if it's not suspended
2018-02-09video: omapfb: fix missing #includesTomi Valkeinen
The omapfb driver fails to build after commit 23c35f48f5fb ("pinctrl: remove include file from <linux/device.h>") because it relies on the <linux/pinctrl/consumer.h> and <linux/seq_file.h> being pulled in by the <linux/device.h> header implicitly. Include these headers explicitly to avoid the build failures. Fixes: 23c35f48f5fb ("pinctrl: remove include file from <linux/device.h>") Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Tested-by: Tony Lindgren <tony@atomide.com> [b.zolnierkie: fix include order and patch description] Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2018-02-08platform/x86: mlx-platform: Fix power cable setting for msn21xx familyVadim Pasternak
Add dedicated structure with power cable setting for Mellanox msn21xx family. These systems do not have a physical device for the power unit controller. When the power cable is inserted or removed, the relevant interrupt signal is handled, the status is updated, but no device is associated with the signal. Add definition for interrupt low aggregation signal. On system from msn21xx family, low aggregation mask should be removed in order to allow signal to hit CPU. Fixes: 6613d18e9038 ("platform/x86: mlx-platform: Move module from arch/x86") Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2018-02-08platform/x86: mlx-platform: Add define for the negative busVadim Pasternak
Add define for the negative bus ID in order to use it in case no hotplug device is associated with the hotplug interrupt signal. In this case, the signal will be handled by the mlxreg-hotplug driver, but no device will be associated with the signal. Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2018-02-08platform/x86: mlx-platform: Use defines for bus assignmentVadim Pasternak
Add defines for the bus IDs, used for hotplug device topology to improve code readability. Defines added for FAN and power units. Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2018-02-08platform/mellanox: mlxreg-hotplug: Fix uninitialized variableGeert Uytterhoeven
With gcc-4.1.2: drivers/platform/mellanox/mlxreg-hotplug.c: In function ‘mlxreg_hotplug_health_work_helper’: drivers/platform/mellanox/mlxreg-hotplug.c:347: warning: ‘ret’ is used uninitialized in this function Indeed, if mlxreg_core_item.count is zero, ret is used uninitialized. While this is unlikely to happen (it is set to ARRAY_SIZE(...) in x86 board files), this is done in another source file, so fix this by preinitializing ret to zero. Fixes: c6acad68eb2dbffd ("platform/mellanox: mlxreg-hotplug: Modify to use a regmap interface") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Vadim Pasternak <vadimp@mellanox.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2018-02-08net: phy: fix phy_start to consider PHY_IGNORE_INTERRUPTHeiner Kallweit
This condition wasn't adjusted when PHY_IGNORE_INTERRUPT (-2) was added long ago. In case of PHY_IGNORE_INTERRUPT the MAC interrupt indicates also PHY state changes and we should do what the symbol says. Fixes: 84a527a41f38 ("net: phylib: fix interrupts re-enablement in phy_start") Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-08net: thunder: change q_len's type to handle max ring sizeDean Nelson
The Cavium thunder nicvf driver supports rx/tx rings of up to 65536 entries per. The number of entires are stored in the q_len member of struct q_desc_mem. The problem is that q_len being a u16, results in 65536 becoming 0. In getting pointers to descriptors in the rings, the driver uses q_len minus 1 as a mask after incrementing the pointer, in order to go back to the beginning and not go past the end of the ring. With the q_len set to 0 the mask is no longer correct and the driver does go beyond the end of the ring, causing various ills. Usually the first thing that shows up is a "NETDEV WATCHDOG: enP2p1s0f1 (nicvf): transmit queue 7 timed out" warning. This patch remedies the problem by changing q_len to a u32. Signed-off-by: Dean Nelson <dnelson@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-08Merge tag 'wireless-drivers-next-for-davem-2018-02-08' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next Kalle Valo says: ==================== wireless-drivers-next patches for 4.16 The most important here is the ssb fix, it has been reported by the users frequently and the fix just missed the final v4.15. Also numerous other fixes, mt76 had multiple problems with aggregation and a long standing unaligned access bug in rtlwifi is finally fixed. Major changes: ath10k * correct firmware RAM dump length for QCA6174/QCA9377 * add new QCA988X device id * fix a kernel panic during pci probe * revert a recent commit which broke ath10k firmware metadata parsing ath9k * fix a noise floor regression introduced during the merge window * add new device id rtlwifi * fix unaligned access seen on ARM architecture mt76 * various aggregation fixes which fix connection stalls ssb * fix b43 and b44 on non-MIPS which broke in v4.15-rc9 ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-08ibmvnic: queue reset when CRQ gets closed during resetNathan Fontenot
While handling a driver reset we get a H_CLOSED return trying to send a CRQ event. When this occurs we need to queue up another reset attempt. Without doing this we see instances where the driver is left in a closed state because the reset failed and there is no further attempts to reset the driver. Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-08atm: he: use 64-bit arithmetic instead of 32-bitGustavo A. R. Silva
Add suffix ULL to constants 272, 204, 136 and 68 in order to give the compiler complete information about the proper arithmetic to use. Notice that these constants are used in contexts that expect expressions of type unsigned long long (64 bits, unsigned). The following expressions are currently being evaluated using 32-bit arithmetic: 272 * mult 204 * mult 136 * mult 68 * mult Addresses-Coverity-ID: 201058 Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-08Merge tag 'iommu-updates-v4.16' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull IOMMU updates from Joerg Roedel: "This time there are not a lot of changes coming from the IOMMU side. That is partly because I returned from my parental leave late in the development process and probably partly because everyone was busy with Spectre and Meltdown mitigation work and didn't find the time for IOMMU work. So here are the few changes that queued up for this merge window: - 5-level page-table support for the Intel IOMMU. - error reporting improvements for the AMD IOMMU driver - additional DT bindings for ipmmu-vmsa (Renesas) - small fixes and cleanups" * tag 'iommu-updates-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu: Clean up of_iommu_init_fn iommu/ipmmu-vmsa: Remove redundant of_iommu_init_fn hook iommu/msm: Claim bus ops on probe iommu/vt-d: Enable 5-level paging mode in the PASID entry iommu/vt-d: Add a check for 5-level paging support iommu/vt-d: Add a check for 1GB page support iommu/vt-d: Enable upto 57 bits of domain address width iommu/vt-d: Use domain instead of cache fetching iommu/exynos: Don't unconditionally steal bus ops iommu/omap: Fix debugfs_create_*() usage iommu/vt-d: clean up pr_irq if request_threaded_irq fails iommu: Check the result of iommu_group_get() for NULL iommu/ipmmu-vmsa: Add r8a779(70|95) DT bindings iommu/ipmmu-vmsa: Add r8a7796 DT binding iommu/amd: Set the device table entry PPR bit for IOMMU V2 devices iommu/amd - Record more information about unknown events
2018-02-08Merge branch 'pcmcia' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia Pull pcmcia updates from Dominik Brodowski: "The linux-pcmcia mailing list was shut down, so offer an alternative path for patches in MAINTAINERS. Also, throw in two odd fixes for the pcmcia subsystem" * 'pcmcia' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia: pcmcia: soc_common: Handle return value of clk_prepare_enable pcmcia: use proper printk format for resource pcmcia: remove mailing list, update MAINTAINERS
2018-02-08Merge tag 'drm-for-v4.16-part2-fixes' of ↵Linus Torvalds
git://people.freedesktop.org/~airlied/linux Pull more drm updates from Dave Airlie: "Ben missed sending his nouveau tree, but he really didn't have much stuff in it: - GP108 acceleration support is enabled by "secure boot" support - some clockgating work on Kepler, and bunch of fixes - the bulk of the diff is regenerated firmware files, the change to them really isn't that large. Otherwise this contains regular Intel and AMDGPU fixes" * tag 'drm-for-v4.16-part2-fixes' of git://people.freedesktop.org/~airlied/linux: (59 commits) drm/i915/bios: add DP max link rate to VBT child device struct drm/i915/cnp: Properly handle VBT ddc pin out of bounds. drm/i915/cnp: Ignore VBT request for know invalid DDC pin. drm/i915/cmdparser: Do not check past the cmd length. drm/i915/cmdparser: Check reg_table_count before derefencing. drm/i915/bxt, glk: Increase PCODE timeouts during CDCLK freq changing drm/i915/gvt: Use KVM r/w to access guest opregion drm/i915/gvt: Fix aperture read/write emulation when enable x-no-mmap=on drm/i915/gvt: only reset execlist state of one engine during VM engine reset drm/i915/gvt: refine intel_vgpu_submission_ops as per engine ops drm/amdgpu: re-enable CGCG on CZ and disable on ST drm/nouveau/clk: fix gcc-7 -Wint-in-bool-context warning drm/nouveau/mmu: Fix trailing semicolon drm/nouveau: Introduce NvPmEnableGating option drm/nouveau: Add support for SLCG for Kepler2 drm/nouveau: Add support for BLCG on Kepler2 drm/nouveau: Add support for BLCG on Kepler1 drm/nouveau: Add support for basic clockgating on Kepler1 drm/nouveau/kms/nv50: fix handling of gamma since atomic conversion drm/nouveau/kms/nv50: use INTERPOLATE_257_UNITY_RANGE LUT on newer chipsets ...
2018-02-08Merge tag 'ceph-for-4.16-rc1' of git://github.com/ceph/ceph-clientLinus Torvalds
Pull ceph updates from Ilya Dryomov: "Things have been very quiet on the rbd side, as work continues on the big ticket items slated for the next merge window. On the CephFS side we have a large number of cap handling improvements, a fix for our long-standing abuse of ->journal_info in ceph_readpages() and yet another dentry pointer management patch" * tag 'ceph-for-4.16-rc1' of git://github.com/ceph/ceph-client: ceph: improving efficiency of syncfs libceph: check kstrndup() return value ceph: try to allocate enough memory for reserved caps ceph: fix race of queuing delayed caps ceph: delete unreachable code in ceph_check_caps() ceph: limit rate of cap import/export error messages ceph: fix incorrect snaprealm when adding caps ceph: fix un-balanced fsc->writeback_count update ceph: track read contexts in ceph_file_info ceph: avoid dereferencing invalid pointer during cached readdir ceph: use atomic_t for ceph_inode_info::i_shared_gen ceph: cleanup traceless reply handling for rename ceph: voluntarily drop Fx cap for readdir request ceph: properly drop caps for setattr request ceph: voluntarily drop Lx cap for link/rename requests ceph: voluntarily drop Ax cap for requests that create new inode rbd: whitelist RBD_FEATURE_OPERATIONS feature bit rbd: don't NULL out ->obj_request in rbd_img_obj_parent_read_full() rbd: use kmem_cache_zalloc() in rbd_img_request_create() rbd: obj_request->completion is unused
2018-02-08tuntap: add missing xdp flushJason Wang
When using devmap to redirect packets between interfaces, xdp_do_flush() is usually a must to flush any batched packets. Unfortunately this is missed in current tuntap implementation. Unlike most hardware driver which did XDP inside NAPI loop and call xdp_do_flush() at then end of each round of poll. TAP did it in the context of process e.g tun_get_user(). So fix this by count the pending redirected packets and flush when it exceeds NAPI_POLL_WEIGHT or MSG_MORE was cleared by sendmsg() caller. With this fix, xdp_redirect_map works again between two TAPs. Fixes: 761876c857cb ("tap: XDP support") Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-08Merge tag 'arm64-upstream' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull more arm64 updates from Catalin Marinas: "As I mentioned in the last pull request, there's a second batch of security updates for arm64 with mitigations for Spectre/v1 and an improved one for Spectre/v2 (via a newly defined firmware interface API). Spectre v1 mitigation: - back-end version of array_index_mask_nospec() - masking of the syscall number to restrict speculation through the syscall table - masking of __user pointers prior to deference in uaccess routines Spectre v2 mitigation update: - using the new firmware SMC calling convention specification update - removing the current PSCI GET_VERSION firmware call mitigation as vendors are deploying new SMCCC-capable firmware - additional branch predictor hardening for synchronous exceptions and interrupts while in user mode Meltdown v3 mitigation update: - Cavium Thunder X is unaffected but a hardware erratum gets in the way. The kernel now starts with the page tables mapped as global and switches to non-global if kpti needs to be enabled. Other: - Theoretical trylock bug fixed" * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (38 commits) arm64: Kill PSCI_GET_VERSION as a variant-2 workaround arm64: Add ARM_SMCCC_ARCH_WORKAROUND_1 BP hardening support arm/arm64: smccc: Implement SMCCC v1.1 inline primitive arm/arm64: smccc: Make function identifiers an unsigned quantity firmware/psci: Expose SMCCC version through psci_ops firmware/psci: Expose PSCI conduit arm64: KVM: Add SMCCC_ARCH_WORKAROUND_1 fast handling arm64: KVM: Report SMCCC_ARCH_WORKAROUND_1 BP hardening support arm/arm64: KVM: Turn kvm_psci_version into a static inline arm/arm64: KVM: Advertise SMCCC v1.1 arm/arm64: KVM: Implement PSCI 1.0 support arm/arm64: KVM: Add smccc accessors to PSCI code arm/arm64: KVM: Add PSCI_VERSION helper arm/arm64: KVM: Consolidate the PSCI include files arm64: KVM: Increment PC after handling an SMC trap arm: KVM: Fix SMCCC handling of unimplemented SMC/HVC calls arm64: KVM: Fix SMCCC handling of unimplemented SMC/HVC calls arm64: entry: Apply BP hardening for suspicious interrupts from EL0 arm64: entry: Apply BP hardening for high-priority synchronous exceptions arm64: futex: Mask __user pointers prior to dereference ...
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 18:44:40 +0000