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2020-12-28usb: gadget: fsl_mxc_udc: Remove the driverFabio Estevam
Since 5.10-rc1 i.MX is a devicetree-only platform, and this driver was only used by the old non-DT i.MX devices. Remove the driver as it has no users left. Signed-off-by: Fabio Estevam <festevam@gmail.com> Acked-by: Peter Chen <peter.chen@nxp.com> Link: https://lore.kernel.org/r/20201210210413.15262-1-festevam@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-28dt-bindings: usb: Add new compatible string for AM64 SoCAswath Govindraju
Add compatible string in j721e-usb binding file as the same USB subsystem is present in AM64. Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Aswath Govindraju <a-govindraju@ti.com> Link: https://lore.kernel.org/r/20201215042549.7956-1-a-govindraju@ti.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-28MAINTAINERS: Update address for Cadence USB3 driverRoger Quadros
Updates my email address for Cadence USB3 driver. Signed-off-by: Roger Quadros <rogerq@ti.com> Link: https://lore.kernel.org/r/20201218105736.17667-1-rogerq@ti.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-28USB: cdc-acm: blacklist another IR Droid deviceSean Young
This device is supported by the IR Toy driver. Reported-by: Georgi Bakalski <georgi.bakalski@gmail.com> Signed-off-by: Sean Young <sean@mess.org> Acked-by: Oliver Neukum <oneukum@suse.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20201227134502.4548-2-sean@mess.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-28Merge tag 'v5.11-rc1' into spi-5.11Mark Brown
Linux 5.11-rc1
2020-12-28Merge tag 'v5.11-rc1' into regulator-5.11Mark Brown
Linux 5.11-rc1
2020-12-28staging: mt7621-dma: Fix a resource leak in an error handling pathChristophe JAILLET
If an error occurs after calling 'mtk_hsdma_init()', it must be undone by a corresponding call to 'mtk_hsdma_uninit()' as already done in the remove function. Fixes: 0853c7a53eb3 ("staging: mt7621-dma: ralink: add rt2880 dma engine") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20201213153513.138723-1-christophe.jaillet@wanadoo.fr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-28Staging: comedi: Return -EFAULT if copy_to_user() failsDan Carpenter
Return -EFAULT on error instead of the number of bytes remaining to be copied. Fixes: bac42fb21259 ("comedi: get rid of compat_alloc_user_space() mess in COMEDI_CMD{,TEST} compat") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/X8c3pfwFy2jpy4BP@mwanda Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-28staging: spmi: hisi-spmi-controller: Fix some error handling pathsChristophe JAILLET
IN the probe function, if an error occurs after calling 'spmi_controller_alloc()', it must be undone by a corresponding 'spmi_controller_put() call. In the remove function, use 'spmi_controller_put(ctrl)' instead of 'kfree(ctrl)'. While a it fix an error message (s/spmi_add_controller/spmi_controller_add/) Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/20201213151105.137731-1-christophe.jaillet@wanadoo.fr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-28interconnect: imx8mq: Use icc_sync_stateMartin Kepplinger
Add the icc_sync_state callback to notify the framework when consumers are probed and the bandwidth doesn't have to be kept at maximum anymore. Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm> Suggested-by: Georgi Djakov <georgi.djakov@linaro.org> Fixes: 7d3b0b0d8184 ("interconnect: qcom: Use icc_sync_state") Link: https://lore.kernel.org/r/20201210100906.18205-6-martin.kepplinger@puri.sm Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-12-28interconnect: imx: Remove a useless testChristophe JAILLET
'dn' can't be NULL here, it is tested just the line above. Remove this useless test. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/20201206121322.29434-1-christophe.jaillet@wanadoo.fr Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-12-28interconnect: imx: Add a missing of_node_put after of_device_is_availableChristophe JAILLET
Add an 'of_node_put()' call when a tested device node is not available. Fixes: f0d8048525d7 ("interconnect: Add imx core driver") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/20201206121304.29381-1-christophe.jaillet@wanadoo.fr Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-12-28interconnect: qcom: fix rpmh link failuresArnd Bergmann
When CONFIG_COMPILE_TEST is set, it is possible to build some of the interconnect drivers into the kernel while their dependencies are loadable modules, which is bad: arm-linux-gnueabi-ld: drivers/interconnect/qcom/bcm-voter.o: in function `qcom_icc_bcm_voter_commit': (.text+0x1f8): undefined reference to `rpmh_invalidate' arm-linux-gnueabi-ld: (.text+0x20c): undefined reference to `rpmh_write_batch' arm-linux-gnueabi-ld: (.text+0x2b0): undefined reference to `rpmh_write_batch' arm-linux-gnueabi-ld: (.text+0x2e8): undefined reference to `rpmh_write_batch' arm-linux-gnueabi-ld: drivers/interconnect/qcom/icc-rpmh.o: in function `qcom_icc_bcm_init': (.text+0x2ac): undefined reference to `cmd_db_read_addr' arm-linux-gnueabi-ld: (.text+0x2c8): undefined reference to `cmd_db_read_aux_data' The exact dependencies are a bit complicated, so split them out into a hidden Kconfig symbol that all drivers can in turn depend on to get it right. Fixes: 976daac4a1c5 ("interconnect: qcom: Consolidate interconnect RPMh support") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20201204165030.3747484-1-arnd@kernel.org Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-12-28fanotify: Fix sys_fanotify_mark() on native x86-32Brian Gerst
Commit 121b32a58a3a ("x86/entry/32: Use IA32-specific wrappers for syscalls taking 64-bit arguments") converted native x86-32 which take 64-bit arguments to use the compat handlers to allow conversion to passing args via pt_regs. sys_fanotify_mark() was however missed, as it has a general compat handler. Add a config option that will use the syscall wrapper that takes the split args for native 32-bit. [ bp: Fix typo in Kconfig help text. ] Fixes: 121b32a58a3a ("x86/entry/32: Use IA32-specific wrappers for syscalls taking 64-bit arguments") Reported-by: Paweł Jasiak <pawel@jasiak.xyz> Signed-off-by: Brian Gerst <brgerst@gmail.com> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Jan Kara <jack@suse.cz> Acked-by: Andy Lutomirski <luto@kernel.org> Link: https://lkml.kernel.org/r/20201130223059.101286-1-brgerst@gmail.com
2020-12-28netfilter: nftables: add set expression flagsPablo Neira Ayuso
The set flag NFT_SET_EXPR provides a hint to the kernel that userspace supports for multiple expressions per set element. In the same direction, NFT_DYNSET_F_EXPR specifies that dynset expression defines multiple expressions per set element. This allows new userspace software with old kernels to bail out with EOPNOTSUPP. This update is similar to ef516e8625dd ("netfilter: nf_tables: reintroduce the NFT_SET_CONCAT flag"). The NFT_SET_EXPR flag needs to be set on when the NFTA_SET_EXPRESSIONS attribute is specified. The NFT_SET_EXPR flag is not set on with NFTA_SET_EXPR to retain backward compatibility in old userspace binaries. Fixes: 48b0ae046ee9 ("netfilter: nftables: netlink support for several set element expressions") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-12-28netfilter: nft_dynset: report EOPNOTSUPP on missing set featurePablo Neira Ayuso
If userspace requests a feature which is not available the original set definition, then bail out with EOPNOTSUPP. If userspace sends unsupported dynset flags (new feature not supported by this kernel), then report EOPNOTSUPP to userspace. EINVAL should be only used to report malformed netlink messages from userspace. Fixes: 22fe54d5fefc ("netfilter: nf_tables: add support for dynamic set updates") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-12-28habanalabs: fix order of status checkOded Gabbay
When the device is in reset or needs to be reset, the disabled property is don't-care. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-12-28habanalabs: register to pci shutdown callbackOded Gabbay
We need to make sure our device is idle when rebooting a virtual machine. This is done in the driver level. The firmware will later handle FLR but we want to be extra safe and stop the devices until the FLR is handled. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-12-28habanalabs: add validation cs counter, fix misplaced countersAlon Mizrahi
Up until now validation errors were counted in the parsing field of the cs_counters struct, so we added a new counter and increased it when needed. In addition, there were some locations where only one of the counters was updated (ctx or aggregate) so add the second one to be updated as well. Signed-off-by: Alon Mizrahi <amizrahi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-12-28habanalabs/gaudi: retry loading TPC f/w on -EINTROded Gabbay
If loading the firmware file for the TPC f/w was interrupted, try to do it again, up to 5 times. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-12-28habanalabs: adjust pci controller init to new firmwareOded Gabbay
When the firmware security is enabled, the pcie_aux_dbi_reg_addr register in the PCI controller is blocked. Therefore, ignore the result of writing to this register and assume it worked. Also remove the prints on errors in the internal ELBI write function. If the security is enabled, the firmware is responsible for setting this register correctly so we won't have any problem. If the security is disabled, the write will work (unless something is totally broken at the PCI level and then the whole sequence will fail). In addition, remove a write to register pcie_aux_dbi_reg_addr+4, which was never actually needed. Moreover, PCIE_DBI registers are blocked to access from host when firmware security is enabled. Use a different register to flush the writes. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-12-28habanalabs: update comment in hl_boot_if.hOded Gabbay
Hard-reset flag is updated in many stages of the boot sequence of the firmware. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-12-28habanalabs/gaudi: enhance reset messageOded Gabbay
Print the initiator who performs the hard-reset for easier debugging. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-12-28habanalabs: full FW hard reset supportOfir Bitton
Driver must fetch FW hard reset capability at every FW boot stage: preboot, CPU boot, CPU application. If hard reset is triggered, driver will take into consideration only the last capability received. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-12-28habanalabs/gaudi: disable CGM at HW initializationOded Gabbay
In case the clock gating was enabled in preboot we need to disable it at the H/W initialization stage before touching the MME/TPC registers. Otherwise, the ASIC can get stuck. If the security is enabled in the firmware level, the CGM is always disabled and the driver can't enable it. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-12-28habanalabs: Revise comment to align with mirror list nameTomer Tayar
hw_queues_mirror was renamed to cs_mirror, so revise accordingly a comment that refers to this list. Signed-off-by: Tomer Tayar <ttayar@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-12-28habanalabs/gaudi: do not set EB in collective slave queuesAlon Mizrahi
We don't need to set EB on signal packets from collective slave queues as it degrades performance. Because the slaves are the network queues, the engine barrier doesn't actually guarantee that the packet has been sent. Signed-off-by: Alon Mizrahi <amizrahi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-12-28habanalabs: preboot hard reset supportOfir Bitton
FW hard reset capability indication is now moved to preboot stage. Driver will check if HW is dirty only after it validated preboot is up. If HW is dirty, driver will perform a hard reset according to the FW capability. In addition, FW defines a new message which driver need to send in order to initiate a hard reset. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-12-28habanalabs: remove generic gaudi get_pll_freq functionAlon Mizrahi
As we only fetch the CPU_PLL frequency in gaudi, we don't need a generic get_pll_frequency function which takes a pll index as input Signed-off-by: Alon Mizrahi <amizrahi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-12-28habanalabs: fetch PSOC PLL frequency from F/W in goyaAlon Mizrahi
When the F/W security is enabled, goya needs to fetch the PSOC pll frequency through a dedicated interface Signed-off-by: Alon Mizrahi <amizrahi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-12-28habanalabs: add comment for pll frequency ioctl opcodeAlon Mizrahi
Forgot to add the comment for the opcode when it was added. Signed-off-by: Alon Mizrahi <amizrahi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-12-28habanalabs: Fix a missing-braces warningTomer Tayar
Fix a compilation "missing braces around initializer" warning. Signed-off-by: Tomer Tayar <ttayar@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-12-28opp: Call the missing clk_put() on errorViresh Kumar
Fix the clock reference counting by calling the missing clk_put() in the error path. Cc: v5.10 <stable@vger.kernel.org> # v5.10 Fixes: dd461cd9183f ("opp: Allow dev_pm_opp_get_opp_table() to return -EPROBE_DEFER") Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2020-12-28opp: fix memory leak in _allocate_opp_tableQuanyang Wang
In function _allocate_opp_table, opp_dev is allocated and referenced by opp_table via _add_opp_dev. But in the case that the subsequent calls return -EPROBE_DEFER, it will jump to err label and opp_table will be freed. Then opp_dev becomes an unreferenced object to cause memory leak. So let's call _remove_opp_dev to do the cleanup. This fixes the following kmemleak report: unreferenced object 0xffff000801524a00 (size 128): comm "swapper/0", pid 1, jiffies 4294892465 (age 84.616s) hex dump (first 32 bytes): 40 00 56 01 08 00 ff ff 40 00 56 01 08 00 ff ff @.V.....@.V..... b8 52 77 7f 08 00 ff ff 00 3c 4c 00 08 00 ff ff .Rw......<L..... backtrace: [<00000000b1289fb1>] kmemleak_alloc+0x30/0x40 [<0000000056da48f0>] kmem_cache_alloc+0x3d4/0x588 [<00000000a84b3b0e>] _add_opp_dev+0x2c/0x88 [<0000000062a380cd>] _add_opp_table_indexed+0x124/0x268 [<000000008b4c8f1f>] dev_pm_opp_of_add_table+0x20/0x1d8 [<00000000e5316798>] dev_pm_opp_of_cpumask_add_table+0x48/0xf0 [<00000000db0a8ec2>] dt_cpufreq_probe+0x20c/0x448 [<0000000030a3a26c>] platform_probe+0x68/0xd8 [<00000000c618e78d>] really_probe+0xd0/0x3a0 [<00000000642e856f>] driver_probe_device+0x58/0xb8 [<00000000f10f5307>] device_driver_attach+0x74/0x80 [<0000000004f254b8>] __driver_attach+0x58/0xe0 [<0000000009d5d19e>] bus_for_each_dev+0x70/0xc8 [<0000000000d22e1c>] driver_attach+0x24/0x30 [<0000000001d4e952>] bus_add_driver+0x14c/0x1f0 [<0000000089928aaa>] driver_register+0x64/0x120 Cc: v5.10 <stable@vger.kernel.org> # v5.10 Fixes: dd461cd9183f ("opp: Allow dev_pm_opp_get_opp_table() to return -EPROBE_DEFER") Signed-off-by: Quanyang Wang <quanyang.wang@windriver.com> [ Viresh: Added the stable tag ] Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2020-12-27Linux 5.11-rc1v5.11-rc1Linus Torvalds
2020-12-27proc mountinfo: make splice available againLinus Torvalds
Since commit 36e2c7421f02 ("fs: don't allow splice read/write without explicit ops") we've required that file operation structures explicitly enable splice support, rather than falling back to the default handlers. Most /proc files use the indirect 'struct proc_ops' to describe their file operations, and were fixed up to support splice earlier in commits 40be821d627c..b24c30c67863, but the mountinfo files interact with the VFS directly using their own 'struct file_operations' and got missed as a result. This adds the necessary support for splice to work for /proc/*/mountinfo and friends. Reported-by: Joan Bruguera Micó <joanbrugueram@gmail.com> Reported-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Link: https://bugzilla.kernel.org/show_bug.cgi?id=209971 Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-12-27Merge tag 'ntb-5.11' of git://github.com/jonmason/ntbLinus Torvalds
Pull NTB fixes from Jon Mason: "Bug fix for IDT NTB and Intel NTB LTR management support" * tag 'ntb-5.11' of git://github.com/jonmason/ntb: ntb: intel: add Intel NTB LTR vendor support for gen4 NTB ntb: idt: fix error check in ntb_hw_idt.c
2020-12-27Merge branch 'linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fixes from Herbert Xu: "Fix a number of autobuild failures due to missing Kconfig dependencies" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: qat - add CRYPTO_AES to Kconfig dependencies crypto: keembay - Add dependency on HAS_IOMEM crypto: keembay - CRYPTO_DEV_KEEMBAY_OCS_AES_SM4 should depend on ARCH_KEEMBAY
2020-12-27Merge tag 'objtool-urgent-2020-12-27' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull objtool fix from Ingo Molnar: "Fix a segfault that occurs when built with Clang" * tag 'objtool-urgent-2020-12-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: objtool: Fix seg fault with Clang non-section symbols
2020-12-27Merge tag 'locking-urgent-2020-12-27' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking fixes from Ingo Molnar: "Misc fixes/updates: - Fix static keys usage in module __init sections - Add separate MAINTAINERS entry for static branches/calls - Fix lockdep splat with CONFIG_PREEMPTIRQ_EVENTS=y tracing" * tag 'locking-urgent-2020-12-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: softirq: Avoid bad tracing / lockdep interaction jump_label/static_call: Add MAINTAINERS jump_label: Fix usage in module __init
2020-12-27Merge tag 'timers-urgent-2020-12-27' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fixes from Ingo Molnar: "Update/fix two CPU sanity checks in the hotplug and the boot code, and fix a typo in the Kconfig help text. [ Context: the first two commits are the result of an ongoing annotation+review work of (intentional) tick_do_timer_cpu() data races reported by KCSAN, but the annotations aren't fully cooked yet ]" * tag 'timers-urgent-2020-12-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: timekeeping: Fix spelling mistake in Kconfig "fullfill" -> "fulfill" tick/sched: Remove bogus boot "safety" check tick: Remove pointless cpu valid check in hotplug code
2020-12-27Merge tag 'sched-urgent-2020-12-27' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fix from Ingo Molnar: "Fix a context switch performance regression" * tag 'sched-urgent-2020-12-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched: Optimize finish_lock_switch()
2020-12-27KVM: arm64: Consolidate dist->ready setting into kvm_vgic_map_resources()Marc Zyngier
dist->ready setting is pointlessly spread across the two vgic backends, while it could be consolidated in kvm_vgic_map_resources(). Move it there, and slightly simplify the flows in both backends. Suggested-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org>
2020-12-27KVM: arm64: Remove redundant call to kvm_pmu_vcpu_reset()Alexandru Elisei
KVM_ARM_VCPU_INIT ioctl calls kvm_reset_vcpu(), which in turn resets the PMU with a call to kvm_pmu_vcpu_reset(). The function zeroes the PMU chained counters bitmap and stops all the counters with a perf event attached. Because it is called before the VCPU has had the chance to run, no perf events are in use and none are released. kvm_arm_pmu_v3_enable(), called by kvm_vcpu_first_run_init() only if the VCPU has been initialized, also resets the PMU. kvm_pmu_vcpu_reset() in this case does the exact same thing as the previous call, so remove it. Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20201201150157.223625-6-alexandru.elisei@arm.com
2020-12-27KVM: arm64: Update comment in kvm_vgic_map_resources()Alexandru Elisei
vgic_v3_map_resources() returns -EBUSY if the VGIC isn't initialized, update the comment to kvm_vgic_map_resources() to match what the function does. Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20201201150157.223625-5-alexandru.elisei@arm.com
2020-12-27netfilter: xt_RATEEST: reject non-null terminated string from userspaceFlorian Westphal
syzbot reports: detected buffer overflow in strlen [..] Call Trace: strlen include/linux/string.h:325 [inline] strlcpy include/linux/string.h:348 [inline] xt_rateest_tg_checkentry+0x2a5/0x6b0 net/netfilter/xt_RATEEST.c:143 strlcpy assumes src is a c-string. Check info->name before its used. Reported-by: syzbot+e86f7c428c8c50db65b4@syzkaller.appspotmail.com Fixes: 5859034d7eb8793 ("[NETFILTER]: x_tables: add RATEEST target") Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-12-27vhost/vsock: add IOTLB API supportStefano Garzarella
This patch enables the IOTLB API support for vhost-vsock devices, allowing the userspace to emulate an IOMMU for the guest. These changes were made following vhost-net, in details this patch: - exposes VIRTIO_F_ACCESS_PLATFORM feature and inits the iotlb device if the feature is acked - implements VHOST_GET_BACKEND_FEATURES and VHOST_SET_BACKEND_FEATURES ioctls - calls vq_meta_prefetch() before vq processing to prefetch vq metadata address in IOTLB - provides .read_iter, .write_iter, and .poll callbacks for the chardev; they are used by the userspace to exchange IOTLB messages This patch was tested specifying "intel_iommu=strict" in the guest kernel command line. I used QEMU with a patch applied [1] to fix a simple issue (that patch was merged in QEMU v5.2.0): $ qemu -M q35,accel=kvm,kernel-irqchip=split \ -drive file=fedora.qcow2,format=qcow2,if=virtio \ -device intel-iommu,intremap=on,device-iotlb=on \ -device vhost-vsock-pci,guest-cid=3,iommu_platform=on,ats=on [1] https://lists.gnu.org/archive/html/qemu-devel/2020-10/msg09077.html Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Link: https://lore.kernel.org/r/20201223143638.123417-1-sgarzare@redhat.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com>
2020-12-26mfd: ab8500-debugfs: Remove extraneous seq_putcLinus Torvalds
Commit c9a3c4e637ac ("mfd: ab8500-debugfs: Remove extraneous curly brace") removed a left-over curly brace that caused build failures, but Joe Perches points out that the subsequent 'seq_putc()' should also be removed, because the commit that caused all these problems already added the final '\n' to the seq_printf() above it. Reported-by: Joe Perches <joe@perches.com> Fixes: 886c8121659d ("mfd: ab8500-debugfs: Remove the racy fiddling with irq_desc") Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-12-25Merge tag 'pci-v5.11-fixes-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI fixes from Bjorn Helgaas: - Fix a tegra enumeration regression (Rob Herring) - Fix a designware-host check that warned on *success*, not failure (Alexander Lobakin) * tag 'pci-v5.11-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: dwc: Fix inverted condition of DMA mask setup warning PCI: tegra: Fix host link initialization
2020-12-25mfd: ab8500-debugfs: Remove extraneous curly braceNathan Chancellor
Clang errors: drivers/mfd/ab8500-debugfs.c:1526:2: error: non-void function does not return a value [-Werror,-Wreturn-type] } ^ drivers/mfd/ab8500-debugfs.c:1528:2: error: expected identifier or '(' return 0; ^ drivers/mfd/ab8500-debugfs.c:1529:1: error: extraneous closing brace ('}') } ^ 3 errors generated. The cleanup in ab8500_interrupts_show left a curly brace around, remove it to fix the error. Fixes: 886c8121659d ("mfd: ab8500-debugfs: Remove the racy fiddling with irq_desc") Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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