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2023-02-17Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/netDavid S. Miller-0/+1
Some of the devlink bits were tricky, but I think I got it right. Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-17drm: document DRM_IOCTL_GEM_CLOSESimon Ser-0/+13
This is a bit tricky, because of the ref'counting considerations. See also [1] for more discussion about this topic. Since this is kernel docs, I've decided to elaborate a bit less on the user-space details. [1]: https://gitlab.freedesktop.org/mesa/drm/-/merge_requests/110 Signed-off-by: Simon Ser <contact@emersion.fr> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Pekka Paalanen <ppaalanen@gmail.com> Cc: Daniel Stone <daniel@fooishbar.org> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230216130934.156541-2-contact@emersion.fr
2023-02-16Merge tag 'wireless-next-2023-03-16' of ↵Jakub Kicinski-0/+32
git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Johannes Berg says: ==================== Major stack changes: * EHT channel puncturing support (client & AP) * some support for AP MLD without mac80211 * fixes for A-MSDU on mesh connections Major driver changes: iwlwifi * EHT rate reporting * Bump FW API to 74 for AX devices * STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware mt76 * switch to using page pool allocator * mt7996 EHT (Wi-Fi 7) support * Wireless Ethernet Dispatch (WED) reset support libertas * WPS enrollee support brcmfmac * Rename Cypress 89459 to BCM4355 * BCM4355 and BCM4377 support mwifiex * SD8978 chipset support rtl8xxxu * LED support ath12k * new driver for Qualcomm Wi-Fi 7 devices ath11k * IPQ5018 support * Fine Timing Measurement (FTM) responder role support * channel 177 support ath10k * store WLAN firmware version in SMEM image table * tag 'wireless-next-2023-03-16' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (207 commits) wifi: brcmfmac: p2p: Introduce generic flexible array frame member wifi: mac80211: add documentation for amsdu_mesh_control wifi: cfg80211: remove gfp parameter from cfg80211_obss_color_collision_notify description wifi: mac80211: always initialize link_sta with sta wifi: mac80211: pass 'sta' to ieee80211_rx_data_set_sta() wifi: cfg80211: Set SSID if it is not already set wifi: rtw89: move H2C of del_pkt_offload before polling FW status ready wifi: rtw89: use readable return 0 in rtw89_mac_cfg_ppdu_status() wifi: rtw88: usb: drop now unnecessary URB size check wifi: rtw88: usb: send Zero length packets if necessary wifi: rtw88: usb: Set qsel correctly wifi: mac80211: fix off-by-one link setting wifi: mac80211: Fix for Rx fragmented action frames wifi: mac80211: avoid u32_encode_bits() warning wifi: mac80211: Don't translate MLD addresses for multicast wifi: cfg80211: call reg_notifier for self managed wiphy from driver hint wifi: cfg80211: get rid of gfp in cfg80211_bss_color_notify wifi: nl80211: Allow authentication frames and set keys on NAN interface wifi: mac80211: fix non-MLO station association wifi: mac80211: Allow NSS change only up to capability ... ==================== Link: https://lore.kernel.org/r/20230216105406.208416-1-johannes@sipsolutions.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-16Merge tag 'asoc-v6.3' of ↵Takashi Iwai-0/+4
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next ASoC: Updates for v6.3 There's been quite a lot of activity this release, but not really one big feature - lots of new devices, plus a lot of cleanup and modernisation work spread throughout the subsystem: - More factoring out of common operations into helper functions by Morimoto-san. - DT schema conversons and stylistic nits. - Continued work on building out the new SOF IPC4 scheme. - Support for Awinc AT88395, Infineon PEB2466, Iron Device SMA1303, Mediatek MT8188, Realtek RT712, Renesas IDT821034, Samsung/Tesla FSD SoC I2S, and TI TAS5720A-Q1.
2023-02-16Merge branch 'topic/apple-gmux' into for-nextTakashi Iwai-10/+121
Pull vga_switcheroo fix for Macs Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-02-16io_uring: Support calling io_uring_register with a registered ring fdJosh Triplett-1/+5
Add a new flag IORING_REGISTER_USE_REGISTERED_RING (set via the high bit of the opcode) to treat the fd as a registered index rather than a file descriptor. This makes it possible for a library to open an io_uring, register the ring fd, close the ring fd, and subsequently use the ring entirely via registered index. Signed-off-by: Josh Triplett <josh@joshtriplett.org> Link: https://lore.kernel.org/r/f2396369e638284586b069dbddffb8c992afba95.1676419314.git.josh@joshtriplett.org [axboe: remove extra high bit clear] Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-02-16tty: n_gsm: add keep alive supportDaniel Starke-0/+10
n_gsm is based on the 3GPP 07.010 and its newer version is the 3GPP 27.010. See https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=1516 The changes from 07.010 to 27.010 are non-functional. Therefore, I refer to the newer 27.010 here. Chapters 5.4.6.3.4 and 5.1.8.1.3 describe the test command which can be used to test the mux connection between both sides. Currently, no algorithm is implemented to make use of this command. This requires that each multiplexed upper layer protocol supervises the underlying muxer connection to handle possible connection losses. Introduce ioctl commands and functions to optionally enable keep alive handling via the test command as described in chapter 5.4.6.3.4. A single incrementing octet "ka_num" is being used for unique identification of each single keep alive packet. Retries will use the same "ka_num" value as the original packet. Retry count and interval are taken from the general parameters N2 and T2. Add usage description and basic example for the new ioctl to the n_gsm documentation. Note that support for the test command is mandatory and already present in the muxer implementation since the very first version. Also note that the previous ioctl structure gsm_config cannot be extended due to missing checks against zero of the field "unused". Signed-off-by: Daniel Starke <daniel.starke@siemens.com> Link: https://lore.kernel.org/r/20230214122737.1976-1-daniel.starke@siemens.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-02-15Merge tag 'kvm-s390-next-6.3-1' of ↵Paolo Bonzini-0/+8
https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD * Two more V!=R patches * The last part of the cmpxchg patches * A few fixes
2023-02-15Merge tag 'kvm-riscv-6.3-1' of https://github.com/kvm-riscv/linux into HEADPaolo Bonzini-6/+4
KVM/riscv changes for 6.3 - Fix wrong usage of PGDIR_SIZE to check page sizes - Fix privilege mode setting in kvm_riscv_vcpu_trap_redirect() - Redirect illegal instruction traps to guest - SBI PMU support for guest
2023-02-15virtio_blk: mark all zone fields LEMichael S. Tsirkin-9/+9
zone is a virtio 1.x feature so all fields are LE, they are handled as such, but have mistakenly been labeled __virtioXX in the header. This results in a bunch of sparse warnings. Use the __leXX tags to make sparse happy. Message-Id: <20221222193214.55146-1-mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-02-15virtio-blk: add support for zoned block devicesDmitry Fomichev-0/+105
This patch adds support for Zoned Block Devices (ZBDs) to the kernel virtio-blk driver. The patch accompanies the virtio-blk ZBD support draft that is now being proposed for standardization. The latest version of the draft is linked at https://github.com/oasis-tcs/virtio-spec/issues/143 . The QEMU zoned device code that implements these protocol extensions has been developed by Sam Li and it is currently in review at the QEMU mailing list. A number of virtblk request structure changes has been introduced to accommodate the functionality that is specific to zoned block devices and, most importantly, make room for carrying the Zoned Append sector value from the device back to the driver along with the request status. The zone-specific code in the patch is heavily influenced by NVMe ZNS code in drivers/nvme/host/zns.c, but it is simpler because the proposed virtio ZBD draft only covers the zoned device features that are relevant to the zoned functionality provided by Linux block layer. includes the following fixup: virtio-blk: fix probe without CONFIG_BLK_DEV_ZONED When building without CONFIG_BLK_DEV_ZONED, VIRTIO_BLK_F_ZONED is excluded from array of driver features. As a result virtio_has_feature panics in virtio_check_driver_offered_feature since that by design verifies that a feature we are checking for is listed in the feature array. To fix, replace the call to virtio_has_feature with a stub. Message-Id: <20221016034127.330942-3-dmitry.fomichev@wdc.com> Co-developed-by: Stefan Hajnoczi <stefanha@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com> Signed-off-by: Dmitry Fomichev <dmitry.fomichev@wdc.com> Message-Id: <20221220112340.518841-1-mst@redhat.com> Reported-by: Linux Kernel Functional Testing <lkft@linaro.org> Tested-by: Linux Kernel Functional Testing <lkft@linaro.org> Reported-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com> Debugged-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com> Tested-by: Anders Roxell <anders.roxell@linaro.org> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com>
2023-02-14Merge branch 'for-6.3/cxl' into cxl/nextDan Williams-0/+1
Pick up the AER unmasking patches for v6.3.
2023-02-14cxl: add RAS status unmasking for CXLDave Jiang-0/+1
By default the CXL RAS mask registers bits are defaulted to 1's and suppress all error reporting. If the kernel has negotiated ownership of error handling for CXL then unmask the mask registers by writing 0s. PCI_EXP_DEVCTL capability is checked to see uncorrectable or correctable errors bits are set before unmasking the respective errors. Acked-by: Bjorn Helgaas <bhelgaas@google.com> # pci_regs.h Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/167639402301.778884.12556849214955646539.stgit@djiang5-mobl3.local Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2023-02-14Merge 6.2-rc8 into usb-nextGreg Kroah-Hartman-0/+3
We need the USB fixes in here for testing. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-02-14wifi: nl80211: Allow authentication frames and set keys on NAN interfaceVinay Gannevaram-0/+4
Wi-Fi Aware R4 specification defines NAN Pairing which uses PASN handshake to authenticate the peer and generate keys. Hence allow to register and transmit the PASN authentication frames on NAN interface and set the keys to driver or underlying modules on NAN interface. The driver needs to configure the feature flag NL80211_EXT_FEATURE_SECURE_NAN, which also helps userspace modules to know if the driver supports secure NAN. Signed-off-by: Vinay Gannevaram <quic_vganneva@quicinc.com> Link: https://lore.kernel.org/r/1675519179-24174-1-git-send-email-quic_vganneva@quicinc.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-02-14wifi: nl80211: validate and configure puncturing bitmapAloka Dixit-0/+11
- New feature flag, NL80211_EXT_FEATURE_PUNCT, to advertise driver support for preamble puncturing in AP mode. - New attribute, NL80211_ATTR_PUNCT_BITMAP, to receive a puncturing bitmap from the userspace during AP bring up (NL80211_CMD_START_AP) and channel switch (NL80211_CMD_CHANNEL_SWITCH) operations. Each bit corresponds to a 20 MHz channel in the operating bandwidth, lowest bit for the lowest channel. Bit set to 1 indicates that the channel is punctured. Higher 16 bits are reserved. - New members added to structures cfg80211_ap_settings and cfg80211_csa_settings to propagate the bitmap to the driver after validation. Signed-off-by: Aloka Dixit <quic_alokad@quicinc.com> Signed-off-by: Muna Sinada <quic_msinada@quicinc.com> Link: https://lore.kernel.org/r/20230131001227.25014-3-quic_alokad@quicinc.com [move validation against 0xffff into policy] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-02-14wifi: cfg80211: Authentication offload to user space for MLO connection in ↵Veerendranath Jakkam-0/+17
STA mode Currently authentication request event interface doesn't have support to indicate the user space whether it should enable MLO or not during the authentication with the specified AP. But driver needs such capability since the connection is MLO or not decided by the driver in case of SME offload to the driver. Add support for driver to indicate MLD address of the AP in authentication offload request to inform user space to enable MLO during authentication process. Driver shall look at NL80211_ATTR_MLO_SUPPORT flag capability in NL80211_CMD_CONNECT to know whether the user space supports enabling MLO during the authentication offload. User space should enable MLO during the authentication only when it receives the AP MLD address in authentication offload request. User space shouldn't enable MLO if the authentication offload request doesn't indicate the AP MLD address even if the AP is MLO capable. When MLO is enabled, user space should use the MAC address of the interface (on which driver sent request) as self MLD address. User space and driver to use MLD addresses in RA, TA and BSSID fields of the frames between them, and driver translates the MLD addresses to/from link addresses based on the link chosen for the authentication. Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com> Link: https://lore.kernel.org/r/20230116125058.1604843-1-quic_vjakkam@quicinc.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-02-13bpf: Add basic bpf_rb_{root,node} supportDave Marchevsky-0/+11
This patch adds special BPF_RB_{ROOT,NODE} btf_field_types similar to BPF_LIST_{HEAD,NODE}, adds the necessary plumbing to detect the new types, and adds bpf_rb_root_free function for freeing bpf_rb_root in map_values. structs bpf_rb_root and bpf_rb_node are opaque types meant to obscure structs rb_root_cached rb_node, respectively. btf_struct_access will prevent BPF programs from touching these special fields automatically now that they're recognized. btf_check_and_fixup_fields now groups list_head and rb_root together as "graph root" fields and {list,rb}_node as "graph node", and does same ownership cycle checking as before. Note that this function does _not_ prevent ownership type mixups (e.g. rb_root owning list_node) - that's handled by btf_parse_graph_root. After this patch, a bpf program can have a struct bpf_rb_root in a map_value, but not add anything to nor do anything useful with it. Signed-off-by: Dave Marchevsky <davemarchevsky@fb.com> Link: https://lore.kernel.org/r/20230214004017.2534011-2-davemarchevsky@fb.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-02-13Merge branch arm64/for-next/sme2 into kvmarm/nextOliver Upton-0/+1
Merge the SME2 branch to fix up a rather annoying conflict due to the EL2 finalization refactor. Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2023-02-13net: phy: add genphy_c45_ethtool_get/set_eee() supportOleksij Rempel-0/+8
Add replacement for phy_ethtool_get/set_eee() functions. Current phy_ethtool_get/set_eee() implementation is great and it is possible to make it even better: - this functionality is for devices implementing parts of IEEE 802.3 specification beyond Clause 22. The better place for this code is phy-c45.c - currently it is able to do read/write operations on PHYs with different abilities to not existing registers. It is better to use stored supported_eee abilities to avoid false read/write operations. - the eee_active detection will provide wrong results on not supported link modes. It is better to validate speed/duplex properties against supported EEE link modes. - it is able to support only limited amount of link modes. We have more EEE link modes... By refactoring this code I address most of this point except of the last one. Adding additional EEE link modes will need more work. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-13net: ethtool: extend ringparam set/get APIs for rx_pushShannon Nelson-0/+1
Similar to what was done for TX_PUSH, add an RX_PUSH concept to the ethtool interfaces. Signed-off-by: Shannon Nelson <shannon.nelson@amd.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-10Merge branch 'for-6.3/cxl' into cxl/nextDan Williams-5/+25
Pick up some final miscellaneous updates for v6.3 including support for communicating 'exclusive' and 'enabled' state of commands.
2023-02-10cxl/mem: Fix UAPI command commentIra Weiny-3/+4
The command comment had grammatical errors. In an attempt to fix those it was noted that the comment and the query command were not in sync. Now that the query command returns excluded and device unsupported command information. Update the kdoc and fix the grammatical errors. [1] https://lore.kernel.org/all/63b4ec4e37cc1_5178e2941d@dwillia2-xfh.jf.intel.com.notmuch/ Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Ira Weiny <ira.weiny@intel.com> Link: https://lore.kernel.org/r/20221222-cxl-misc-v4-4-62f701c1cdd1@intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2023-02-10cxl/uapi: Tag commands from cxl_query_cmd()Ira Weiny-2/+17
It was pointed out that commands not supported by the device or excluded by the kernel were being returned in cxl_query_cmd().[1] While libcxl correctly handles failing commands, it is more efficient to not issue an invalid command in the first place. This can't be done without additional information being returned from cxl_query_cmd(). In addition, information about the availability of commands can be useful for debugging. Add flags to struct cxl_command_info which reflect if a command is enabled and/or exclusive to the kernel. [1] https://lore.kernel.org/all/63b4ec4e37cc1_5178e2941d@dwillia2-xfh.jf.intel.com.notmuch/ Suggested-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Ira Weiny <ira.weiny@intel.com> Link: https://lore.kernel.org/r/20221222-cxl-misc-v4-3-62f701c1cdd1@intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2023-02-10cxl/uapi: Add warning on CXL command enumIra Weiny-0/+4
The CXL command enum is exported to user space and must maintain backwards compatibility. Add comment that new defines must be added to the end of the list. Suggested-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Ira Weiny <ira.weiny@intel.com> Link: https://lore.kernel.org/r/20221222-cxl-misc-v4-2-62f701c1cdd1@intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2023-02-10Daniel Borkmann says:Jakub Kicinski-1/+60
==================== pull-request: bpf-next 2023-02-11 We've added 96 non-merge commits during the last 14 day(s) which contain a total of 152 files changed, 4884 insertions(+), 962 deletions(-). There is a minor conflict in drivers/net/ethernet/intel/ice/ice_main.c between commit 5b246e533d01 ("ice: split probe into smaller functions") from the net-next tree and commit 66c0e13ad236 ("drivers: net: turn on XDP features") from the bpf-next tree. Remove the hunk given ice_cfg_netdev() is otherwise there a 2nd time, and add XDP features to the existing ice_cfg_netdev() one: [...] ice_set_netdev_features(netdev); netdev->xdp_features = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT | NETDEV_XDP_ACT_XSK_ZEROCOPY; ice_set_ops(netdev); [...] Stephen's merge conflict mail: https://lore.kernel.org/bpf/20230207101951.21a114fa@canb.auug.org.au/ The main changes are: 1) Add support for BPF trampoline on s390x which finally allows to remove many test cases from the BPF CI's DENYLIST.s390x, from Ilya Leoshkevich. 2) Add multi-buffer XDP support to ice driver, from Maciej Fijalkowski. 3) Add capability to export the XDP features supported by the NIC. Along with that, add a XDP compliance test tool, from Lorenzo Bianconi & Marek Majtyka. 4) Add __bpf_kfunc tag for marking kernel functions as kfuncs, from David Vernet. 5) Add a deep dive documentation about the verifier's register liveness tracking algorithm, from Eduard Zingerman. 6) Fix and follow-up cleanups for resolve_btfids to be compiled as a host program to avoid cross compile issues, from Jiri Olsa & Ian Rogers. 7) Batch of fixes to the BPF selftest for xdp_hw_metadata which resulted when testing on different NICs, from Jesper Dangaard Brouer. 8) Fix libbpf to better detect kernel version code on Debian, from Hao Xiang. 9) Extend libbpf to add an option for when the perf buffer should wake up, from Jon Doron. 10) Follow-up fix on xdp_metadata selftest to just consume on TX completion, from Stanislav Fomichev. 11) Extend the kfuncs.rst document with description on kfunc lifecycle & stability expectations, from David Vernet. 12) Fix bpftool prog profile to skip attaching to offline CPUs, from Tonghao Zhang. ==================== Link: https://lore.kernel.org/r/20230211002037.8489-1-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-10Merge branches 'for-next/sysreg', 'for-next/sme', 'for-next/kselftest', ↵Catalin Marinas-0/+1
'for-next/misc', 'for-next/sme2', 'for-next/tpidr2', 'for-next/scs', 'for-next/compat-hwcap', 'for-next/ftrace', 'for-next/efi-boot-mmu-on', 'for-next/ptrauth' and 'for-next/pseudo-nmi', remote-tracking branch 'arm64/for-next/perf' into for-next/core * arm64/for-next/perf: perf: arm_spe: Print the version of SPE detected perf: arm_spe: Add support for SPEv1.2 inverted event filtering perf: Add perf_event_attr::config3 drivers/perf: fsl_imx8_ddr_perf: Remove set-but-not-used variable perf: arm_spe: Support new SPEv1.2/v8.7 'not taken' event perf: arm_spe: Use new PMSIDR_EL1 register enums perf: arm_spe: Drop BIT() and use FIELD_GET/PREP accessors arm64/sysreg: Convert SPE registers to automatic generation arm64: Drop SYS_ from SPE register defines perf: arm_spe: Use feature numbering for PMSEVFR_EL1 defines perf/marvell: Add ACPI support to TAD uncore driver perf/marvell: Add ACPI support to DDR uncore driver perf/arm-cmn: Reset DTM_PMU_CONFIG at probe drivers/perf: hisi: Extract initialization of "cpa_pmu->pmu" drivers/perf: hisi: Simplify the parameters of hisi_pmu_init() drivers/perf: hisi: Advertise the PERF_PMU_CAP_NO_EXCLUDE capability * for-next/sysreg: : arm64 sysreg and cpufeature fixes/updates KVM: arm64: Use symbolic definition for ISR_EL1.A arm64/sysreg: Add definition of ISR_EL1 arm64/sysreg: Add definition for ICC_NMIAR1_EL1 arm64/cpufeature: Remove 4 bit assumption in ARM64_FEATURE_MASK() arm64/sysreg: Fix errors in 32 bit enumeration values arm64/cpufeature: Fix field sign for DIT hwcap detection * for-next/sme: : SME-related updates arm64/sme: Optimise SME exit on syscall entry arm64/sme: Don't use streaming mode to probe the maximum SME VL arm64/ptrace: Use system_supports_tpidr2() to check for TPIDR2 support * for-next/kselftest: (23 commits) : arm64 kselftest fixes and improvements kselftest/arm64: Don't require FA64 for streaming SVE+ZA tests kselftest/arm64: Copy whole EXTRA context kselftest/arm64: Fix enumeration of systems without 128 bit SME for SSVE+ZA kselftest/arm64: Fix enumeration of systems without 128 bit SME kselftest/arm64: Don't require FA64 for streaming SVE tests kselftest/arm64: Limit the maximum VL we try to set via ptrace kselftest/arm64: Correct buffer size for SME ZA storage kselftest/arm64: Remove the local NUM_VL definition kselftest/arm64: Verify simultaneous SSVE and ZA context generation kselftest/arm64: Verify that SSVE signal context has SVE_SIG_FLAG_SM set kselftest/arm64: Remove spurious comment from MTE test Makefile kselftest/arm64: Support build of MTE tests with clang kselftest/arm64: Initialise current at build time in signal tests kselftest/arm64: Don't pass headers to the compiler as source kselftest/arm64: Remove redundant _start labels from FP tests kselftest/arm64: Fix .pushsection for strings in FP tests kselftest/arm64: Run BTI selftests on systems without BTI kselftest/arm64: Fix test numbering when skipping tests kselftest/arm64: Skip non-power of 2 SVE vector lengths in fp-stress kselftest/arm64: Only enumerate power of two VLs in syscall-abi ... * for-next/misc: : Miscellaneous arm64 updates arm64/mm: Intercept pfn changes in set_pte_at() Documentation: arm64: correct spelling arm64: traps: attempt to dump all instructions arm64: Apply dynamic shadow call stack patching in two passes arm64: el2_setup.h: fix spelling typo in comments arm64: Kconfig: fix spelling arm64: cpufeature: Use kstrtobool() instead of strtobool() arm64: Avoid repeated AA64MMFR1_EL1 register read on pagefault path arm64: make ARCH_FORCE_MAX_ORDER selectable * for-next/sme2: (23 commits) : Support for arm64 SME 2 and 2.1 arm64/sme: Fix __finalise_el2 SMEver check kselftest/arm64: Remove redundant _start labels from zt-test kselftest/arm64: Add coverage of SME 2 and 2.1 hwcaps kselftest/arm64: Add coverage of the ZT ptrace regset kselftest/arm64: Add SME2 coverage to syscall-abi kselftest/arm64: Add test coverage for ZT register signal frames kselftest/arm64: Teach the generic signal context validation about ZT kselftest/arm64: Enumerate SME2 in the signal test utility code kselftest/arm64: Cover ZT in the FP stress test kselftest/arm64: Add a stress test program for ZT0 arm64/sme: Add hwcaps for SME 2 and 2.1 features arm64/sme: Implement ZT0 ptrace support arm64/sme: Implement signal handling for ZT arm64/sme: Implement context switching for ZT0 arm64/sme: Provide storage for ZT0 arm64/sme: Add basic enumeration for SME2 arm64/sme: Enable host kernel to access ZT0 arm64/sme: Manually encode ZT0 load and store instructions arm64/esr: Document ISS for ZT0 being disabled arm64/sme: Document SME 2 and SME 2.1 ABI ... * for-next/tpidr2: : Include TPIDR2 in the signal context kselftest/arm64: Add test case for TPIDR2 signal frame records kselftest/arm64: Add TPIDR2 to the set of known signal context records arm64/signal: Include TPIDR2 in the signal context arm64/sme: Document ABI for TPIDR2 signal information * for-next/scs: : arm64: harden shadow call stack pointer handling arm64: Stash shadow stack pointer in the task struct on interrupt arm64: Always load shadow stack pointer directly from the task struct * for-next/compat-hwcap: : arm64: Expose compat ARMv8 AArch32 features (HWCAPs) arm64: Add compat hwcap SSBS arm64: Add compat hwcap SB arm64: Add compat hwcap I8MM arm64: Add compat hwcap ASIMDBF16 arm64: Add compat hwcap ASIMDFHM arm64: Add compat hwcap ASIMDDP arm64: Add compat hwcap FPHP and ASIMDHP * for-next/ftrace: : Add arm64 support for DYNAMICE_FTRACE_WITH_CALL_OPS arm64: avoid executing padding bytes during kexec / hibernation arm64: Implement HAVE_DYNAMIC_FTRACE_WITH_CALL_OPS arm64: ftrace: Update stale comment arm64: patching: Add aarch64_insn_write_literal_u64() arm64: insn: Add helpers for BTI arm64: Extend support for CONFIG_FUNCTION_ALIGNMENT ACPI: Don't build ACPICA with '-Os' Compiler attributes: GCC cold function alignment workarounds ftrace: Add DYNAMIC_FTRACE_WITH_CALL_OPS * for-next/efi-boot-mmu-on: : Permit arm64 EFI boot with MMU and caches on arm64: kprobes: Drop ID map text from kprobes blacklist arm64: head: Switch endianness before populating the ID map efi: arm64: enter with MMU and caches enabled arm64: head: Clean the ID map and the HYP text to the PoC if needed arm64: head: avoid cache invalidation when entering with the MMU on arm64: head: record the MMU state at primary entry arm64: kernel: move identity map out of .text mapping arm64: head: Move all finalise_el2 calls to after __enable_mmu * for-next/ptrauth: : arm64 pointer authentication cleanup arm64: pauth: don't sign leaf functions arm64: unify asm-arch manipulation * for-next/pseudo-nmi: : Pseudo-NMI code generation optimisations arm64: irqflags: use alternative branches for pseudo-NMI logic arm64: add ARM64_HAS_GIC_PRIO_RELAXED_SYNC cpucap arm64: make ARM64_HAS_GIC_PRIO_MASKING depend on ARM64_HAS_GIC_CPUIF_SYSREGS arm64: rename ARM64_HAS_IRQ_PRIO_MASKING to ARM64_HAS_GIC_PRIO_MASKING arm64: rename ARM64_HAS_SYSREG_GIC_CPUIF to ARM64_HAS_GIC_CPUIF_SYSREGS
2023-02-09Merge tag 'drm-fixes-2023-02-10' of git://anongit.freedesktop.org/drm/drmLinus Torvalds-0/+1
Pull drm fixes from Dave Airlie: "Weekly fixes. The amdgpu had a few small fixes to display flicker on certain configurations, however it was found the the flicker was lessened but there were other unintended consequences, so for now they've been reverted and replaced with an option for users to test with so future fixes can be developed. Otherwise apart from the usual bunch of i915 and amdgpu, there's a client, virtio-gpu and an nvidiafb fix that reorders its loading to avoid failure. client: - refcount fix amdgpu: - a bunch of attempted flicker fixes that regressed turned into a user workaround option for now - Properly fix S/G display with AGP aperture enabled - Fix cursor offset with 180 rotation - SMU13 fixes - Use TGID for GPUVM traces - Fix oops on in fence error path - Don't run IB tests on hw rings when sw rings are in use - memory leak fix i915: - Display watermark fix - fbdev fix for PSR, FBC, DRRS - Move fd_install after last use of fence - Initialize the obj flags for shmem objects - Fix VBT DSI DVO port handling virtio-gpu: - fence fix nvidiafb: - regression fix for driver load when no hw supported" * tag 'drm-fixes-2023-02-10' of git://anongit.freedesktop.org/drm/drm: (27 commits) Revert "drm/amd/display: disable S/G display on DCN 3.1.5" Revert "drm/amd/display: disable S/G display on DCN 2.1.0" Revert "drm/amd/display: disable S/G display on DCN 3.1.2/3" drm/amdgpu: add S/G display parameter drm/amdgpu/smu: skip pptable init under sriov amd/amdgpu: remove test ib on hw ring drm/amdgpu/fence: Fix oops due to non-matching drm_sched init/fini drm/amdgpu: Use the TGID for trace_amdgpu_vm_update_ptes drm/amdgpu: Add unique_id support for GC 11.0.1/2 drm/amd/pm: bump SMU 13.0.7 driver_if header version drm/amd/pm: bump SMU 13.0.0 driver_if header version drm/amd/pm: add SMU 13.0.7 missing GetPptLimit message mapping drm/amd/display: fix cursor offset on rotation 180 drm/amd/amdgpu: enable athub cg 11.0.3 Revert "drm/amd/display: disable S/G display on DCN 3.1.4" drm/amd/display: properly handling AGP aperture in vm setup drm/amd/display: disable S/G display on DCN 3.1.2/3 drm/amd/display: disable S/G display on DCN 2.1.0 drm/i915: Fix VBT DSI DVO port handling drm/client: fix circular reference counting issue ...
2023-02-10Merge tag 'drm-misc-fixes-2023-02-09' of ↵Dave Airlie-0/+1
git://anongit.freedesktop.org/drm/drm-misc into drm-fixes A fix for a circular refcounting in drm/client, one for a memory leak in amdgpu and a virtio fence fix when interrupted Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20230209083600.7hi6roht6xxgldgz@houat
2023-02-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski-0/+2
net/devlink/leftover.c / net/core/devlink.c: 565b4824c39f ("devlink: change port event netdev notifier from per-net to global") f05bd8ebeb69 ("devlink: move code to a dedicated directory") 687125b5799c ("devlink: split out core code") https://lore.kernel.org/all/20230208094657.379f2b1a@canb.auug.org.au/ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-09vfio/type1: exclude mdevs from VFIO_UPDATE_VADDRSteve Sistare-6/+9
Disable the VFIO_UPDATE_VADDR capability if mediated devices are present. Their kernel threads could be blocked indefinitely by a misbehaving userland while trying to pin/unpin pages while vaddrs are being updated. Do not allow groups to be added to the container while vaddr's are invalid, so we never need to block user threads from pinning, and can delete the vaddr-waiting code in a subsequent patch. Fixes: c3cbab24db38 ("vfio/type1: implement interfaces to update vaddr") Cc: stable@vger.kernel.org Signed-off-by: Steve Sistare <steven.sistare@oracle.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Link: https://lore.kernel.org/r/1675184289-267876-2-git-send-email-steven.sistare@oracle.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2023-02-08Merge tag 'v6.2-rc7' into media_treeMauro Carvalho Chehab-10/+129
Linux 6.2-rc7 * tag 'v6.2-rc7': (1549 commits) Linux 6.2-rc7 fbcon: Check font dimension limits efi: fix potential NULL deref in efi_mem_reserve_persistent kernel/irq/irqdomain.c: fix memory leak with using debugfs_lookup() HV: hv_balloon: fix memory leak with using debugfs_lookup() mtk_sgmii: enable PCS polling to allow SFP work net: mediatek: sgmii: fix duplex configuration net: mediatek: sgmii: ensure the SGMII PHY is powered down on configuration MAINTAINERS: update SCTP maintainers MAINTAINERS: ipv6: retire Hideaki Yoshifuji mailmap: add John Crispin's entry MAINTAINERS: bonding: move Veaceslav Falico to CREDITS net: openvswitch: fix flow memory leak in ovs_flow_cmd_new net: ethernet: mtk_eth_soc: disable hardware DSA untagging for second MAC virtio-net: Keep stop() to follow mirror sequence of open() efi: Accept version 2 of memory attributes table ceph: blocklist the kclient when receiving corrupted snap trace ceph: move mount state enum to super.h selftests: net: udpgso_bench_tx: Cater for pending datagrams zerocopy benchmarking selftests: net: udpgso_bench: Fix racing bug between the rx/tx programs ...
2023-02-08tty: n_gsm: mark unusable ioctl structure fields accordinglyDaniel Starke-4/+3
gsm_config and gsm_netconfig includes unused fields that have been included to allow future extension without changing the structure size. Unfortunately, no checks have been included for these field. The actual value set by old user space code remains undefined. This means that future extensions can not use these fields without breaking old user space code which may set unexpected values. Mark these fields accordingly to avoid breaking code changes. Signed-off-by: Daniel Starke <daniel.starke@siemens.com> Link: https://lore.kernel.org/r/20230206114606.2133-1-daniel.starke@siemens.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-02-08serial: 8250_pci1xxxx: Add driver for quad-uart supportKumaravel Thiagarajan-0/+3
pci1xxxx is a PCIe switch with a multi-function endpoint on one of its downstream ports. Quad-uart is one of the functions in the multi-function endpoint. This driver loads for the quad-uart and enumerates single or multiple instances of uart based on the PCIe subsystem device ID. Co-developed-by: Tharun Kumar P <tharunkumar.pasumarthi@microchip.com> Signed-off-by: Tharun Kumar P <tharunkumar.pasumarthi@microchip.com> Signed-off-by: Kumaravel Thiagarajan <kumaravel.thiagarajan@microchip.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20230207164814.3104605-3-kumaravel.thiagarajan@microchip.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-02-07KVM: s390: Extend MEM_OP ioctl by storage key checked cmpxchgJanis Schoetterl-Glausch-0/+8
User space can use the MEM_OP ioctl to make storage key checked reads and writes to the guest, however, it has no way of performing atomic, key checked, accesses to the guest. Extend the MEM_OP ioctl in order to allow for this, by adding a cmpxchg op. For now, support this op for absolute accesses only. This op can be used, for example, to set the device-state-change indicator and the adapter-local-summary indicator atomically. Signed-off-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com> Reviewed-by: Janosch Frank <frankja@linux.ibm.com> Link: https://lore.kernel.org/r/20230206164602.138068-13-scgl@linux.ibm.com Message-Id: <20230206164602.138068-13-scgl@linux.ibm.com> Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
2023-02-07fanotify: define struct members to hold response decision contextRichard Guy Briggs-1/+29
This patch adds a flag, FAN_INFO and an extensible buffer to provide additional information about response decisions. The buffer contains one or more headers defining the information type and the length of the following information. The patch defines one additional information type, FAN_RESPONSE_INFO_AUDIT_RULE, to audit a rule number. This will allow for the creation of other information types in the future if other users of the API identify different needs. The kernel can be tested if it supports a given info type by supplying the complete info extension but setting fd to FAN_NOFD. It will return the expected size but not issue an audit record. Suggested-by: Steve Grubb <sgrubb@redhat.com> Link: https://lore.kernel.org/r/2745105.e9J7NaK4W3@x2 Suggested-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/20201001101219.GE17860@quack2.suse.cz Tested-by: Steve Grubb <sgrubb@redhat.com> Acked-by: Steve Grubb <sgrubb@redhat.com> Signed-off-by: Richard Guy Briggs <rgb@redhat.com> Signed-off-by: Jan Kara <jack@suse.cz> Message-Id: <10177cfcae5480926b7176321a28d9da6835b667.1675373475.git.rgb@redhat.com>
2023-02-07perf: Add perf_event_attr::config3Rob Herring-0/+3
Arm SPEv1.2 adds another 64-bits of event filtering control. As the existing perf_event_attr::configN fields are all used up for SPE PMU, an additional field is needed. Add a new 'config3' field. Tested-by: James Clark <james.clark@arm.com> Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20220825-arm-spe-v8-7-v4-7-327f860daf28@kernel.org Signed-off-by: Will Deacon <will@kernel.org>
2023-02-06drm/virtio: exbuf->fence_fd unmodified on interrupted waitRyan Neph-0/+1
An interrupted dma_fence_wait() becomes an -ERESTARTSYS returned to userspace ioctl(DRM_IOCTL_VIRTGPU_EXECBUFFER) calls, prompting to retry the ioctl(), but the passed exbuf->fence_fd has been reset to -1, making the retry attempt fail at sync_file_get_fence(). The uapi for DRM_IOCTL_VIRTGPU_EXECBUFFER is changed to retain the passed value for exbuf->fence_fd when returning anything besides a successful result from the ioctl. Fixes: 2cd7b6f08bc4 ("drm/virtio: add in/out fence support for explicit synchronization") Signed-off-by: Ryan Neph <ryanneph@chromium.org> Reviewed-by: Rob Clark <robdclark@gmail.com> Reviewed-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230203233345.2477767-1-ryanneph@chromium.org
2023-02-06usb: uvc: Enumerate valid values for color matchingDaniel Scally-0/+30
The color matching descriptors defined in the UVC Specification contain 3 fields with discrete numeric values representing particular settings. Enumerate those values so that later code setting them can be more readable. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com> Link: https://lore.kernel.org/r/20230202114142.300858-2-dan.scally@ideasonboard.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-02-06Merge 6.2-rc7 into tty-nextGreg Kroah-Hartman-4/+2
We need the tty/serial fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-02-06uapi: add missing ip/ipv6 header dependencies for linux/stddef.hHerton R. Krzesinski-0/+2
Since commit 58e0be1ef6118 ("net: use struct_group to copy ip/ipv6 header addresses"), ip and ipv6 headers started to use the __struct_group definition, which is defined at include/uapi/linux/stddef.h. However, linux/stddef.h isn't explicitly included in include/uapi/linux/{ip,ipv6}.h, which breaks build of xskxceiver bpf selftest if you install the uapi headers in the system: $ make V=1 xskxceiver -C tools/testing/selftests/bpf ... make: Entering directory '(...)/tools/testing/selftests/bpf' gcc -g -O0 -rdynamic -Wall -Werror (...) In file included from xskxceiver.c:79: /usr/include/linux/ip.h:103:9: error: expected specifier-qualifier-list before ‘__struct_group’ 103 | __struct_group(/* no tag */, addrs, /* no attrs */, | ^~~~~~~~~~~~~~ ... Include the missing <linux/stddef.h> dependency in ip.h and do the same for the ipv6.h header. Fixes: 58e0be1ef611 ("net: use struct_group to copy ip/ipv6 header addresses") Signed-off-by: Herton R. Krzesinski <herton@redhat.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-06net: bridge: Add netlink knobs for number / maximum MDB entriesPetr Machata-0/+4
The previous patch added accounting for number of MDB entries per port and per port-VLAN, and the logic to verify that these values stay within configured bounds. However it didn't provide means to actually configure those bounds or read the occupancy. This patch does that. Two new netlink attributes are added for the MDB occupancy: IFLA_BRPORT_MCAST_N_GROUPS for the per-port occupancy and BRIDGE_VLANDB_ENTRY_MCAST_N_GROUPS for the per-port-VLAN occupancy. And another two for the maximum number of MDB entries: IFLA_BRPORT_MCAST_MAX_GROUPS for the per-port maximum, and BRIDGE_VLANDB_ENTRY_MCAST_MAX_GROUPS for the per-port-VLAN one. Note that the two new IFLA_BRPORT_ attributes prompt bumping of RTNL_SLAVE_MAX_TYPE to size the slave attribute tables large enough. The new attributes are used like this: # ip link add name br up type bridge vlan_filtering 1 mcast_snooping 1 \ mcast_vlan_snooping 1 mcast_querier 1 # ip link set dev v1 master br # bridge vlan add dev v1 vid 2 # bridge vlan set dev v1 vid 1 mcast_max_groups 1 # bridge mdb add dev br port v1 grp 230.1.2.3 temp vid 1 # bridge mdb add dev br port v1 grp 230.1.2.4 temp vid 1 Error: bridge: Port-VLAN is already in 1 groups, and mcast_max_groups=1. # bridge link set dev v1 mcast_max_groups 1 # bridge mdb add dev br port v1 grp 230.1.2.3 temp vid 2 Error: bridge: Port is already in 1 groups, and mcast_max_groups=1. # bridge -d link show 5: v1@v2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 master br [...] [...] mcast_n_groups 1 mcast_max_groups 1 # bridge -d vlan show port vlan-id br 1 PVID Egress Untagged state forwarding mcast_router 1 v1 1 PVID Egress Untagged [...] mcast_n_groups 1 mcast_max_groups 1 2 [...] mcast_n_groups 0 mcast_max_groups 0 Signed-off-by: Petr Machata <petrm@nvidia.com> Acked-by: Nikolay Aleksandrov <razor@blackwall.org> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-06Merge 6.2-rc7 into char-misc-nextGreg Kroah-Hartman-4/+2
We need the char-misc driver fixes in here as other patches depend on them. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-02-06Merge 6.2-rc7 into usb-nextGreg Kroah-Hartman-4/+2
We need the USB fixes in here, and this resolves a merge conflict with the i915 driver as reported in linux-next Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-02-04ALSA: fireface: add field for the number of messages copied to user spaceTakashi Sakamoto-0/+2
Current structure includes no field to express the number of messages copied to user space, thus user space application needs to information out of the structure to parse the content of structure. This commit adds a field to express the number of messages copied to user space since It is more preferable to use self-contained structure. Kees Cook proposed an idea of annotation for bound of flexible arrays in his future improvement for flexible-length array in kernel. The additional field for message count is suitable to the idea as well. Reference: https://people.kernel.org/kees/bounded-flexible-arrays-in-c Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Link: https://lore.kernel.org/r/20230202133708.163936-1-o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-02-03bpf: fix typo in header for bpf_perf_prog_read_valueFlorian Lehner-1/+1
Fix a simple typo in the documentation for bpf_perf_prog_read_value. Signed-off-by: Florian Lehner <dev@der-flo.net> Acked-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/r/20230203121439.25884-1-dev@der-flo.net Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-02-02mm: implement memory-deny-write-execute as a prctlJoey Gouly-0/+6
Patch series "mm: In-kernel support for memory-deny-write-execute (MDWE)", v2. The background to this is that systemd has a configuration option called MemoryDenyWriteExecute [2], implemented as a SECCOMP BPF filter. Its aim is to prevent a user task from inadvertently creating an executable mapping that is (or was) writeable. Since such BPF filter is stateless, it cannot detect mappings that were previously writeable but subsequently changed to read-only. Therefore the filter simply rejects any mprotect(PROT_EXEC). The side-effect is that on arm64 with BTI support (Branch Target Identification), the dynamic loader cannot change an ELF section from PROT_EXEC to PROT_EXEC|PROT_BTI using mprotect(). For libraries, it can resort to unmapping and re-mapping but for the main executable it does not have a file descriptor. The original bug report in the Red Hat bugzilla - [3] - and subsequent glibc workaround for libraries - [4]. This series adds in-kernel support for this feature as a prctl PR_SET_MDWE, that is inherited on fork(). The prctl denies PROT_WRITE | PROT_EXEC mappings. Like the systemd BPF filter it also denies adding PROT_EXEC to mappings. However unlike the BPF filter it only denies it if the mapping didn't previous have PROT_EXEC. This allows to PROT_EXEC -> PROT_EXEC | PROT_BTI with mprotect(), which is a problem with the BPF filter. This patch (of 2): The aim of such policy is to prevent a user task from creating an executable mapping that is also writeable. An example of mmap() returning -EACCESS if the policy is enabled: mmap(0, size, PROT_READ | PROT_WRITE | PROT_EXEC, flags, 0, 0); Similarly, mprotect() would return -EACCESS below: addr = mmap(0, size, PROT_READ | PROT_EXEC, flags, 0, 0); mprotect(addr, size, PROT_READ | PROT_WRITE | PROT_EXEC); The BPF filter that systemd MDWE uses is stateless, and disallows mprotect() with PROT_EXEC completely. This new prctl allows PROT_EXEC to be enabled if it was already PROT_EXEC, which allows the following case: addr = mmap(0, size, PROT_READ | PROT_EXEC, flags, 0, 0); mprotect(addr, size, PROT_READ | PROT_EXEC | PROT_BTI); where PROT_BTI enables branch tracking identification on arm64. Link: https://lkml.kernel.org/r/20230119160344.54358-1-joey.gouly@arm.com Link: https://lkml.kernel.org/r/20230119160344.54358-2-joey.gouly@arm.com Signed-off-by: Joey Gouly <joey.gouly@arm.com> Co-developed-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Jeremy Linton <jeremy.linton@arm.com> Cc: Kees Cook <keescook@chromium.org> Cc: Lennart Poettering <lennart@poettering.net> Cc: Mark Brown <broonie@kernel.org> Cc: nd <nd@arm.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Szabolcs Nagy <szabolcs.nagy@arm.com> Cc: Topi Miettinen <toiwoton@gmail.com> Cc: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> Cc: David Hildenbrand <david@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-02-02netdev-genl: create a simple family for netdev stuffJakub Kicinski-0/+59
Add a Netlink spec-compatible family for netdevs. This is a very simple implementation without much thought going into it. It allows us to reap all the benefits of Netlink specs, one can use the generic client to issue the commands: $ ./cli.py --spec netdev.yaml --dump dev_get [{'ifindex': 1, 'xdp-features': set()}, {'ifindex': 2, 'xdp-features': {'basic', 'ndo-xmit', 'redirect'}}, {'ifindex': 3, 'xdp-features': {'rx-sg'}}] the generic python library does not have flags-by-name support, yet, but we also don't have to carry strings in the messages, as user space can get the names from the spec. Acked-by: Jesper Dangaard Brouer <brouer@redhat.com> Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Co-developed-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Co-developed-by: Marek Majtyka <alardam@gmail.com> Signed-off-by: Marek Majtyka <alardam@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/r/327ad9c9868becbe1e601b580c962549c8cd81f2.1675245258.git.lorenzo@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-02-03Merge tag 'drm-msm-next-2023-01-30' of ↵Dave Airlie-1/+3
https://gitlab.freedesktop.org/drm/msm into drm-next msm-next for v6.3 There is one devfreq patch, maintainer acked to land via msm-next to avoid a build break on platforms that do not support PM_DEVFREQ. And otherwise the usual assortment: GPU: - Add MSM_SUBMIT_BO_NO_IMPLICIT - a2xx: Support to load legacy firmware - a6xx: GPU devcore dump updates for a650/a660 - GPU devfreq tuning and fixes DPU, DSI, MDSS: - Support for SM8350, SM8450 SM8550 and SC8280XP platform Core: - Added bindings for SM8150 (driver support already present) DPU: - Partial support for DSC on SM8150 and SM8250 - Fixed color transformation matrix being lost on suspend/resume - Include DSC blocks into register snapshot - Misc HW catalog fixes DP: - Support for DP on SDM845 and SC8280XP platforms - HPD fixes - Support for limiting DP link rate via DT property, this enables - Support for HBR3 rates. DSI: - Validate display modes according to the DSI OPP table - DSI PHY support for the SM6375 platform - Fixed byte intf clock selection for 14nm PHYs - Fix the case of empty OPP tables (fixing db410c) - DT schema rework and fixes HDMI: - Turn 8960 HDMI PHY into clock provider, - Make 8960 HDMI PHY use PXO clock from DT MDP5: - Schema conversion to YAML Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rob Clark <robdclark@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGv6zQ-zsgS+NG+WuV=tk51q9vA2QdKqYhNgiXQddAdZjA@mail.gmail.com
2023-02-01net: add gso_ipv4_max_size and gro_ipv4_max_size per deviceXin Long-0/+3
This patch introduces gso_ipv4_max_size and gro_ipv4_max_size per device and adds netlink attributes for them, so that IPV4 BIG TCP can be guarded by a separate tunable in the next patch. To not break the old application using "gso/gro_max_size" for IPv4 GSO packets, this patch updates "gso/gro_ipv4_max_size" in netif_set_gso/gro_max_size() if the new size isn't greater than GSO_LEGACY_MAX_SIZE, so that nothing will change even if userspace doesn't realize the new netlink attributes. Signed-off-by: Xin Long <lucien.xin@gmail.com> Reviewed-by: David Ahern <dsahern@kernel.org> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>