- 30 4月, 2020 5 次提交
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由 Jules Irenge 提交于
Sparse reports a warning at atmel_spi_next_xfer_dma_submit() warning: context imbalance in atmel_spi_next_xfer_dma_submit() - unexpected unlock The root cause is the missing annotation at atmel_spi_next_xfer_dma_submit() Add the missing __must_hold(&as->lock) annotation Signed-off-by: NJules Irenge <jbi.octave@gmail.com> Link: https://lore.kernel.org/r/20200429225723.31258-3-jbi.octave@gmail.comSigned-off-by: NMark Brown <broonie@kernel.org>
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由 Evan Green 提交于
With a couple allies at Intel, and much badgering, I got confirmation from Intel that at least BXT suffers from the same SPI chip-select issue as Cannonlake (and beyond). The issue being that after going through runtime suspend/resume, toggling the chip-select line without also sending data does nothing. Add the quirk to BXT to briefly toggle dynamic clock gating off and on, forcing the fabric to wake up enough to notice the CS register change. Signed-off-by: NEvan Green <evgreen@chromium.org> Cc: Shobhit Srivastava <shobhit.srivastava@intel.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20200427163238.1.Ib1faaabe236e37ea73be9b8dcc6aa034cb3c8804@changeidSigned-off-by: NMark Brown <broonie@kernel.org>
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由 Patrice Chotard 提交于
Issue detected by unbinding/binding the stm32 qspi driver as following: root@stm32mp2:~# echo 40430000.spi > /sys/bus/platform/drivers/stm32-qspi/404300 00.spi/driver/unbind root@stm32mp2:~# echo 40430000.spi > /sys/bus/platform/drivers/stm32-qspi/bind [ 969.864021] stm32-qspi 40430000.spi: Unbalanced pm_runtime_enable! [ 970.225161] spi-nor spi0.0: mx66u51235f (65536 Kbytes) [ 970.935721] spi-nor spi0.1: mx66u51235f (65536 Kbytes) Fixes: 9d282c17 ("spi: stm32-qspi: Add pm_runtime support") Signed-off-by: NPatrice Chotard <patrice.chotard@st.com> Link: https://lore.kernel.org/r/20200429102625.25974-1-patrice.chotard@st.comSigned-off-by: NMark Brown <broonie@kernel.org>
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由 Wei Yongjun 提交于
Fix to return negative error code -EPROBE_DEFER from the DMA probe defer error handling case instead of 0, as done elsewhere in this function. Signed-off-by: NWei Yongjun <weiyongjun1@huawei.com> Link: https://lore.kernel.org/r/20200429075855.104487-1-weiyongjun1@huawei.comSigned-off-by: NMark Brown <broonie@kernel.org>
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由 Wei Yongjun 提交于
In case of error, the function devm_ioremap_resource() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Fixes: bbb336f3 ("spi: spi-amd: Add AMD SPI controller driver support") Signed-off-by: NWei Yongjun <weiyongjun1@huawei.com> Link: https://lore.kernel.org/r/20200429025426.167664-1-weiyongjun1@huawei.comSigned-off-by: NMark Brown <broonie@kernel.org>
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- 29 4月, 2020 1 次提交
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由 Sanjay R Mehta 提交于
remove unused variable "opcode" Signed-off-by: NSanjay R Mehta <sanju.mehta@amd.com> Signed-off-by: NMark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/1588049801-37995-1-git-send-email-sanju.mehta@amd.comSigned-off-by: NMark Brown <broonie@kernel.org>
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- 27 4月, 2020 12 次提交
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由 Sanjay R Mehta 提交于
This driver supports SPI Controller for AMD SOCs.This driver supports SPI operations using FIFO mode of transfer. Signed-off-by: NSanjay R Mehta <sanju.mehta@amd.com> Signed-off-by: NMark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/1587844788-33997-1-git-send-email-sanju.mehta@amd.comSigned-off-by: NMark Brown <broonie@kernel.org>
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由 Mark Brown 提交于
Linux 5.7-rc3
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由 Linus Torvalds 提交于
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git://git.samba.org/sfrench/cifs-2.6由 Linus Torvalds 提交于
Pull cifs fixes from Steve French: "Five cifs/smb3 fixes:two for DFS reconnect failover, one lease fix for stable and the others to fix a missing spinlock during reconnect" * tag '5.7-rc2-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6: cifs: fix uninitialised lease_key in open_shroot() cifs: ensure correct super block for DFS reconnect cifs: do not share tcons with DFS cifs: minor update to comments around the cifs_tcp_ses_lock mutex cifs: protect updating server->dstaddr with a spinlock
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb由 Linus Torvalds 提交于
Pull USB fixes from Greg KH: "Here are a number of USB driver fixes for 5.7-rc3. Nothing huge, just the usual collection of: - xhci fixes - gadget driver fixes - syzkaller fuzzing fixes - new device ids and DT bindings - new quirks added for broken devices A few of the gadget driver fixes show up twice here as they were applied to my branch, and also by Felipe to his branch which I then pulled in as we got out of sync a bit. All of these have been in linux-next with no reported issues" * tag 'usb-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (33 commits) USB: sisusbvga: Change port variable from signed to unsigned usb-storage: Add unusual_devs entry for JMicron JMS566 USB: hub: Revert commit bd0e6c96 ("usb: hub: try old enumeration scheme first for high speed devices") USB: hub: Fix handling of connect changes during sleep usb: typec: altmode: Fix typec_altmode_get_partner sometimes returning an invalid pointer xhci: Don't clear hub TT buffer on ep0 protocol stall xhci: prevent bus suspend if a roothub port detected a over-current condition xhci: Fix handling halted endpoint even if endpoint ring appears empty usb: raw-gadget: Fix copy_to/from_user() checks usb: raw-gadget: fix raw_event_queue_fetch locking usb: gadget: udc: atmel: Fix vbus disconnect handling usb: dwc3: gadget: Fix request completion check USB: Add USB_QUIRK_DELAY_CTRL_MSG and USB_QUIRK_DELAY_INIT for Corsair K70 RGB RAPIDFIRE phy: tegra: Select USB_COMMON for usb_get_maximum_speed() usb: typec: tcpm: Ignore CC and vbus changes in PORT_RESET change usb: f_fs: Clear OS Extended descriptor counts to zero in ffs_data_reset() cdc-acm: introduce a cool down cdc-acm: close race betrween suspend() and acm_softint UAS: fix deadlock in error handling and PM flushing work UAS: no use logging any details in case of ENODEV ...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty由 Linus Torvalds 提交于
Pull tty/serial fixes from Greg KH: "Here are some tty and serial driver fixes for 5.7-rc3. The "largest" in here are a number of reverts for previous changes to the uartps serial driver that turned out to not be a good idea at all. The others are just small fixes found by people and tools. Included in here is a much-reported symbol export needed by previous changes that happened in 5.7-rc1. All of these have been in linux-next for a while with no reported issues" * tag 'tty-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: tty: hvc: fix buffer overflow during hvc_alloc(). tty: rocket, avoid OOB access tty: serial: bcm63xx: fix missing clk_put() in bcm63xx_uart vt: don't hardcode the mem allocation upper bound tty: serial: owl: add "much needed" clk_prepare_enable() vt: don't use kmalloc() for the unicode screen buffer tty/sysrq: Export sysrq_mask(), sysrq_toggle_support() serial: sh-sci: Make sure status register SCxSR is read in correct sequence serial: sunhv: Initialize lock for non-registered console Revert "serial: uartps: Register own uart console and driver structures" Revert "serial: uartps: Move Port ID to device data structure" Revert "serial: uartps: Change uart ID port allocation" Revert "serial: uartps: Do not allow use aliases >= MAX_UART_INSTANCES" Revert "serial: uartps: Fix error path when alloc failed" Revert "serial: uartps: Use the same dynamic major number for all ports" Revert "serial: uartps: Fix uartps_major handling"
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc由 Linus Torvalds 提交于
Pull char/misc driver fixes from Greg KH: "Here are 4 small misc driver fixes for 5.7-rc3: - mei driver fix - interconnect driver fix - two fpga driver fixes All have been in linux-next with no reported issues" * tag 'char-misc-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: interconnect: qcom: Fix uninitialized tcs_cmd::wait mei: me: fix irq number stored in hw struct fpga: dfl: pci: fix return value of cci_pci_sriov_configure fpga: zynq: Remove clk_get error message for probe defer
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging由 Linus Torvalds 提交于
Pull staging/IIO driver fixes from Greg KH: "Here are some small staging and IIO driver fixes for 5.7-rc3 Lots of tiny things for reported issues in staging and IIO drivers, including a counter driver fix as well (the iio drivers seem to be tied to those). Full details of the fixes are in the shortlog. All of these have been in linux-next for a while with no reported issues" * tag 'staging-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (27 commits) staging: vt6656: Fix calling conditions of vnt_set_bss_mode staging: comedi: Fix comedi_device refcnt leak in comedi_open staging: vt6656: Fix pairwise key entry save. staging: vt6656: Fix drivers TBTT timing counter. staging: vt6656: Don't set RCR_MULTICAST or RCR_BROADCAST by default. MAINTAINERS: remove Stefan Popa's email iio: adc: ad7192: fix null pointer de-reference crash during probe iio: core: remove extra semi-colon from devm_iio_device_register() macro iio: adc: ti-ads8344: properly byte swap value iio: imu: inv_mpu6050: fix suspend/resume with runtime power iio: st_sensors: rely on odr mask to know if odr can be set iio: xilinx-xadc: Make sure not exceed maximum samplerate iio: xilinx-xadc: Fix sequencer configuration for aux channels in simultaneous mode iio: xilinx-xadc: Fix clearing interrupt when enabling trigger iio: xilinx-xadc: Fix ADC-B powerdown iio: dac: ad5770r: fix off-by-one check on maximum number of channels iio: imu: st_lsm6dsx: flush hw FIFO before resetting the device iio: core: Fix handling of 'dB' dt-bindings: iio: adc: stm32-adc: fix id relative path counter: 104-quad-8: Add lock guards - generic interface ...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core由 Linus Torvalds 提交于
Pull driver core fixes from Greg KH: "Here are some small firmware/driver core/debugfs fixes for 5.7-rc3. The debugfs change is now possible as now the last users of debugfs_create_u32() have been fixed up in the different trees that got merged into 5.7-rc1, and I don't want it creeping back in. The firmware changes did cause a regression in linux-next, so the final patch here reverts part of that, re-exporting the symbol to resolve that issue. All of these patches, with the exception of the final one, have been in linux-next with only that one reported issue" * tag 'driver-core-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: firmware_loader: revert removal of the fw_fallback_config export debugfs: remove return value of debugfs_create_u32() firmware_loader: remove unused exports firmware: imx: fix compile-testing
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux由 Linus Torvalds 提交于
Pull s390 fixes from Vasily Gorbik: - Add a few notrace annotations to avoid potential crashes when switching ftrace tracers. - Avoid setting affinity for floating irqs in pci code. - Fix build issue found by kbuild test robot. * tag 's390-5.7-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/protvirt: fix compilation issue s390/pci: do not set affinity for floating irqs s390/ftrace: fix potential crashes when switching tracers
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux由 Linus Torvalds 提交于
Pull powerpc fixes from Michael Ellerman: - One important fix for a bug in the way we find the cache-line size from the device tree, which was leading to the wrong size being reported to userspace on some platforms. - A fix for 8xx STRICT_KERNEL_RWX which was leaving TLB entries around leading to a window at boot when the strict mapping wasn't enforced. - A fix to enable our KUAP (kernel user access prevention) debugging on PPC32. - A build fix for clang in lib/mpi. Thanks to: Chris Packham, Christophe Leroy, Nathan Chancellor, Qian Cai. * tag 'powerpc-5.7-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: lib/mpi: Fix building for powerpc with clang powerpc/mm: Fix CONFIG_PPC_KUAP_DEBUG on PPC32 powerpc/8xx: Fix STRICT_KERNEL_RWX startup test failure powerpc/setup_64: Set cache-line-size based on cache-block-size
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux由 Linus Torvalds 提交于
Pull more Devicetree fixes from Rob Herring: "A couple of schema and kbuild fixes" * tag 'devicetree-fixes-for-5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: dt-bindings: phy: qcom-qusb2: Fix defaults dt-bindings: Fix erroneous 'additionalProperties' dt-bindings: Fix command line length limit calling dt-mk-schema dt-bindings: Re-enable core schemas for dtbs_check
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- 26 4月, 2020 6 次提交
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由 Luis Chamberlain 提交于
Christoph's patch removed two unsused exported symbols, however, one symbol is used by the firmware_loader itself. If CONFIG_FW_LOADER=m so the firmware_loader is modular but CONFIG_FW_LOADER_USER_HELPER=y we fail the build at mostpost. ERROR: modpost: "fw_fallback_config" [drivers/base/firmware_loader/firmware_class.ko] undefined! This happens because the variable fw_fallback_config is built into the kernel if CONFIG_FW_LOADER_USER_HELPER=y always, so we need to grant access to the firmware loader module by exporting it. Revert only one hunk from his patch. Fixes: 73960473 ("firmware_loader: remove unused exports") Reported-by: NRandy Dunlap <rdunlap@infradead.org> Signed-off-by: NLuis Chamberlain <mcgrof@kernel.org> Link: https://lore.kernel.org/r/20200424184916.22843-1-mcgrof@kernel.orgSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace由 Linus Torvalds 提交于
Pull pid leak fix from Eric Biederman: "Oleg noticed that put_pid(thread_pid) was not getting called when proc was not compiled in. Let's get that fixed before 5.7 is released and causes problems for anyone" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: proc: Put thread_pid in release_task not proc_flush_pid
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull timer fixlet from Ingo Molnar: "A single fix for a comment that may show up in DocBook output" * tag 'timers-urgent-2020-04-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: vdso/datapage: Use correct clock mode name in comment
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull scheduler fixes from Ingo Molnar: "Misc fixes: - an uclamp accounting fix - three frequency invariance fixes and a readability improvement" * tag 'sched-urgent-2020-04-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/core: Fix reset-on-fork from RT with uclamp x86, sched: Move check for CPU type to caller function x86, sched: Don't enable static key when starting secondary CPUs x86, sched: Account for CPUs with less than 4 cores in freq. invariance x86, sched: Bail out of frequency invariance if base frequency is unknown
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull perf fixes from Ingo Molnar: "Two changes: - fix exit event records - extend x86 PMU driver enumeration to add Intel Jasper Lake CPU support" * tag 'perf-urgent-2020-04-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/core: fix parent pid/tid in task exit events perf/x86/cstate: Add Jasper Lake CPU support
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull objtool fixes from Ingo Molnar: "Two fixes: fix an off-by-one bug, and fix 32-bit builds on 64-bit systems" * tag 'objtool-urgent-2020-04-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: objtool: Fix off-by-one in symbol_by_offset() objtool: Fix 32bit cross builds
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- 25 4月, 2020 16 次提交
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由 Claudio Imbrenda 提交于
The kernel fails to compile with CONFIG_PROTECTED_VIRTUALIZATION_GUEST set but CONFIG_KVM unset. This patch fixes the issue by making the needed variable always available. Link: https://lkml.kernel.org/r/20200423120114.2027410-1-imbrenda@linux.ibm.com Fixes: a0f60f84 ("s390/protvirt: Add sysfs firmware interface for Ultravisor information") Reported-by: Nkbuild test robot <lkp@intel.com> Reported-by: NPhilipp Rudo <prudo@linux.ibm.com> Suggested-by: NPhilipp Rudo <prudo@linux.ibm.com> Reviewed-by: NDavid Hildenbrand <david@redhat.com> Reviewed-by: NCornelia Huck <cohuck@redhat.com> Reviewed-by: NVasily Gorbik <gor@linux.ibm.com> Acked-by: NChristian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: NClaudio Imbrenda <imbrenda@linux.ibm.com> Signed-off-by: NVasily Gorbik <gor@linux.ibm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net由 Linus Torvalds 提交于
Pull networking fixes from David Miller: 1) Fix memory leak in netfilter flowtable, from Roi Dayan. 2) Ref-count leaks in netrom and tipc, from Xiyu Yang. 3) Fix warning when mptcp socket is never accepted before close, from Florian Westphal. 4) Missed locking in ovs_ct_exit(), from Tonghao Zhang. 5) Fix large delays during PTP synchornization in cxgb4, from Rahul Lakkireddy. 6) team_mode_get() can hang, from Taehee Yoo. 7) Need to use kvzalloc() when allocating fw tracer in mlx5 driver, from Niklas Schnelle. 8) Fix handling of bpf XADD on BTF memory, from Jann Horn. 9) Fix BPF_STX/BPF_B encoding in x86 bpf jit, from Luke Nelson. 10) Missing queue memory release in iwlwifi pcie code, from Johannes Berg. 11) Fix NULL deref in macvlan device event, from Taehee Yoo. 12) Initialize lan87xx phy correctly, from Yuiko Oshino. 13) Fix looping between VRF and XFRM lookups, from David Ahern. 14) etf packet scheduler assumes all sockets are full sockets, which is not necessarily true. From Eric Dumazet. 15) Fix mptcp data_fin handling in RX path, from Paolo Abeni. 16) fib_select_default() needs to handle nexthop objects, from David Ahern. 17) Use GFP_ATOMIC under spinlock in mac80211_hwsim, from Wei Yongjun. 18) vxlan and geneve use wrong nlattr array, from Sabrina Dubroca. 19) Correct rx/tx stats in bcmgenet driver, from Doug Berger. 20) BPF_LDX zero-extension is encoded improperly in x86_32 bpf jit, fix from Luke Nelson. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (100 commits) selftests/bpf: Fix a couple of broken test_btf cases tools/runqslower: Ensure own vmlinux.h is picked up first bpf: Make bpf_link_fops static bpftool: Respect the -d option in struct_ops cmd selftests/bpf: Add test for freplace program with expected_attach_type bpf: Propagate expected_attach_type when verifying freplace programs bpf: Fix leak in LINK_UPDATE and enforce empty old_prog_fd bpf, x86_32: Fix logic error in BPF_LDX zero-extension bpf, x86_32: Fix clobbering of dst for BPF_JSET bpf, x86_32: Fix incorrect encoding in BPF_LDX zero-extension bpf: Fix reStructuredText markup net: systemport: suppress warnings on failed Rx SKB allocations net: bcmgenet: suppress warnings on failed Rx SKB allocations macsec: avoid to set wrong mtu mac80211: sta_info: Add lockdep condition for RCU list usage mac80211: populate debugfs only after cfg80211 init net: bcmgenet: correct per TX/RX ring statistics net: meth: remove spurious copyright text net: phy: bcm84881: clear settings on link down chcr: Fix CPU hard lockup ...
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git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf由 David S. Miller 提交于
Alexei Starovoitov says: ==================== pull-request: bpf 2020-04-24 The following pull-request contains BPF updates for your *net* tree. We've added 17 non-merge commits during the last 5 day(s) which contain a total of 19 files changed, 203 insertions(+), 85 deletions(-). The main changes are: 1) link_update fix, from Andrii. 2) libbpf get_xdp_id fix, from David. 3) xadd verifier fix, from Jann. 4) x86-32 JIT fixes, from Luke and Wang. 5) test_btf fix, from Stanislav. 6) freplace verifier fix, from Toke. ==================== Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Stanislav Fomichev 提交于
Commit 51c39bb1 ("bpf: Introduce function-by-function verification") introduced function linkage flag and changed the error message from "vlen != 0" to "Invalid func linkage" and broke some fake BPF programs. Adjust the test accordingly. AFACT, the programs don't really need any arguments and only look at BTF for maps, so let's drop the args altogether. Before: BTF raw test[103] (func (Non zero vlen)): do_test_raw:3703:FAIL expected err_str:vlen != 0 magic: 0xeb9f version: 1 flags: 0x0 hdr_len: 24 type_off: 0 type_len: 72 str_off: 72 str_len: 10 btf_total_size: 106 [1] INT (anon) size=4 bits_offset=0 nr_bits=32 encoding=SIGNED [2] INT (anon) size=4 bits_offset=0 nr_bits=32 encoding=(none) [3] FUNC_PROTO (anon) return=0 args=(1 a, 2 b) [4] FUNC func type_id=3 Invalid func linkage BTF libbpf test[1] (test_btf_haskv.o): libbpf: load bpf program failed: Invalid argument libbpf: -- BEGIN DUMP LOG --- libbpf: Validating test_long_fname_2() func#1... Arg#0 type PTR in test_long_fname_2() is not supported yet. processed 0 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0 libbpf: -- END LOG -- libbpf: failed to load program 'dummy_tracepoint' libbpf: failed to load object 'test_btf_haskv.o' do_test_file:4201:FAIL bpf_object__load: -4007 BTF libbpf test[2] (test_btf_newkv.o): libbpf: load bpf program failed: Invalid argument libbpf: -- BEGIN DUMP LOG --- libbpf: Validating test_long_fname_2() func#1... Arg#0 type PTR in test_long_fname_2() is not supported yet. processed 0 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0 libbpf: -- END LOG -- libbpf: failed to load program 'dummy_tracepoint' libbpf: failed to load object 'test_btf_newkv.o' do_test_file:4201:FAIL bpf_object__load: -4007 BTF libbpf test[3] (test_btf_nokv.o): libbpf: load bpf program failed: Invalid argument libbpf: -- BEGIN DUMP LOG --- libbpf: Validating test_long_fname_2() func#1... Arg#0 type PTR in test_long_fname_2() is not supported yet. processed 0 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0 libbpf: -- END LOG -- libbpf: failed to load program 'dummy_tracepoint' libbpf: failed to load object 'test_btf_nokv.o' do_test_file:4201:FAIL bpf_object__load: -4007 Fixes: 51c39bb1 ("bpf: Introduce function-by-function verification") Signed-off-by: NStanislav Fomichev <sdf@google.com> Signed-off-by: NAlexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200422003753.124921-1-sdf@google.com
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由 Andrii Nakryiko 提交于
Reorder include paths to ensure that runqslower sources are picking up vmlinux.h, generated by runqslower's own Makefile. When runqslower is built from selftests/bpf, due to current -I$(BPF_INCLUDE) -I$(OUTPUT) ordering, it might pick up not-yet-complete vmlinux.h, generated by selftests Makefile, which could lead to compilation errors like [0]. So ensure that -I$(OUTPUT) goes first and rely on runqslower's Makefile own dependency chain to ensure vmlinux.h is properly completed before source code relying on it is compiled. [0] https://travis-ci.org/github/libbpf/libbpf/jobs/677905925Signed-off-by: NAndrii Nakryiko <andriin@fb.com> Signed-off-by: NAlexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200422012407.176303-1-andriin@fb.com
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由 Zou Wei 提交于
Fix the following sparse warning: kernel/bpf/syscall.c:2289:30: warning: symbol 'bpf_link_fops' was not declared. Should it be static? Reported-by: NHulk Robot <hulkci@huawei.com> Signed-off-by: NZou Wei <zou_wei@huawei.com> Signed-off-by: NAlexei Starovoitov <ast@kernel.org> Acked-by: NAndrii Nakryiko <andriin@fb.com> Link: https://lore.kernel.org/bpf/1587609160-117806-1-git-send-email-zou_wei@huawei.com
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由 Martin KaFai Lau 提交于
In the prog cmd, the "-d" option turns on the verifier log. This is missed in the "struct_ops" cmd and this patch fixes it. Fixes: 65c93628 ("bpftool: Add struct_ops support") Signed-off-by: NMartin KaFai Lau <kafai@fb.com> Signed-off-by: NAlexei Starovoitov <ast@kernel.org> Reviewed-by: NQuentin Monnet <quentin@isovalent.com> Link: https://lore.kernel.org/bpf/20200424182911.1259355-1-kafai@fb.com
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由 Toke Høiland-Jørgensen 提交于
This adds a new selftest that tests the ability to attach an freplace program to a program type that relies on the expected_attach_type of the target program to pass verification. Signed-off-by: NToke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: NAlexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/158773526831.293902.16011743438619684815.stgit@toke.dk
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由 Toke Høiland-Jørgensen 提交于
For some program types, the verifier relies on the expected_attach_type of the program being verified in the verification process. However, for freplace programs, the attach type was not propagated along with the verifier ops, so the expected_attach_type would always be zero for freplace programs. This in turn caused the verifier to sometimes make the wrong call for freplace programs. For all existing uses of expected_attach_type for this purpose, the result of this was only false negatives (i.e., freplace functions would be rejected by the verifier even though they were valid programs for the target they were replacing). However, should a false positive be introduced, this can lead to out-of-bounds accesses and/or crashes. The fix introduced in this patch is to propagate the expected_attach_type to the freplace program during verification, and reset it after that is done. Fixes: be8704ff ("bpf: Introduce dynamic program extensions") Signed-off-by: NToke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: NAlexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/158773526726.293902.13257293296560360508.stgit@toke.dk
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由 Andrii Nakryiko 提交于
Fix bug of not putting bpf_link in LINK_UPDATE command. Also enforce zeroed old_prog_fd if no BPF_F_REPLACE flag is specified. Signed-off-by: NAndrii Nakryiko <andriin@fb.com> Signed-off-by: NAlexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200424052045.4002963-1-andriin@fb.com
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由 Wang YanQing 提交于
When verifier_zext is true, we don't need to emit code for zero-extension. Fixes: 836256bf ("x32: bpf: eliminate zero extension code-gen") Signed-off-by: NWang YanQing <udknight@gmail.com> Signed-off-by: NAlexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200423050637.GA4029@udknight
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由 Luke Nelson 提交于
The current JIT clobbers the destination register for BPF_JSET BPF_X and BPF_K by using "and" and "or" instructions. This is fine when the destination register is a temporary loaded from a register stored on the stack but not otherwise. This patch fixes the problem (for both BPF_K and BPF_X) by always loading the destination register into temporaries since BPF_JSET should not modify the destination register. This bug may not be currently triggerable as BPF_REG_AX is the only register not stored on the stack and the verifier uses it in a limited way. Fixes: 03f5781b ("bpf, x86_32: add eBPF JIT compiler for ia32") Signed-off-by: NXi Wang <xi.wang@gmail.com> Signed-off-by: NLuke Nelson <luke.r.nels@gmail.com> Signed-off-by: NAlexei Starovoitov <ast@kernel.org> Acked-by: NWang YanQing <udknight@gmail.com> Link: https://lore.kernel.org/bpf/20200422173630.8351-2-luke.r.nels@gmail.com
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由 Luke Nelson 提交于
The current JIT uses the following sequence to zero-extend into the upper 32 bits of the destination register for BPF_LDX BPF_{B,H,W}, when the destination register is not on the stack: EMIT3(0xC7, add_1reg(0xC0, dst_hi), 0); The problem is that C7 /0 encodes a MOV instruction that requires a 4-byte immediate; the current code emits only 1 byte of the immediate. This means that the first 3 bytes of the next instruction will be treated as the rest of the immediate, breaking the stream of instructions. This patch fixes the problem by instead emitting "xor dst_hi,dst_hi" to clear the upper 32 bits. This fixes the problem and is more efficient than using MOV to load a zero immediate. This bug may not be currently triggerable as BPF_REG_AX is the only register not stored on the stack and the verifier uses it in a limited way, and the verifier implements a zero-extension optimization. But the JIT should avoid emitting incorrect encodings regardless. Fixes: 03f5781b ("bpf, x86_32: add eBPF JIT compiler for ia32") Signed-off-by: NXi Wang <xi.wang@gmail.com> Signed-off-by: NLuke Nelson <luke.r.nels@gmail.com> Signed-off-by: NAlexei Starovoitov <ast@kernel.org> Reviewed-by: NH. Peter Anvin (Intel) <hpa@zytor.com> Acked-by: NWang YanQing <udknight@gmail.com> Link: https://lore.kernel.org/bpf/20200422173630.8351-1-luke.r.nels@gmail.com
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由 Jakub Wilk 提交于
The patch fixes: $ scripts/bpf_helpers_doc.py > bpf-helpers.rst $ rst2man bpf-helpers.rst > bpf-helpers.7 bpf-helpers.rst:1105: (WARNING/2) Inline strong start-string without end-string. Signed-off-by: NJakub Wilk <jwilk@jwilk.net> Signed-off-by: NAlexei Starovoitov <ast@kernel.org> Reviewed-by: NQuentin Monnet <quentin@isovalent.com> Link: https://lore.kernel.org/bpf/20200422082324.2030-1-jwilk@jwilk.net
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由 Doug Berger 提交于
The driver is designed to drop Rx packets and reclaim the buffers when an allocation fails, and the network interface needs to safely handle this packet loss. Therefore, an allocation failure of Rx SKBs is relatively benign. However, the output of the warning message occurs with a high scheduling priority that can cause excessive jitter/latency for other high priority processing. This commit suppresses the warning messages to prevent scheduling problems while retaining the failure count in the statistics of the network interface. Signed-off-by: NDoug Berger <opendmb@gmail.com> Acked-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Doug Berger 提交于
The driver is designed to drop Rx packets and reclaim the buffers when an allocation fails, and the network interface needs to safely handle this packet loss. Therefore, an allocation failure of Rx SKBs is relatively benign. However, the output of the warning message occurs with a high scheduling priority that can cause excessive jitter/latency for other high priority processing. This commit suppresses the warning messages to prevent scheduling problems while retaining the failure count in the statistics of the network interface. Signed-off-by: NDoug Berger <opendmb@gmail.com> Acked-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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