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Re: [PATCH 3/3] rust: replace `addr_of[_mut]!` with `&raw [mut]`

by Benno Lossin

On Thu Mar 13, 2025 at 6:33 AM CET, Antonio Hickey wrote: > Replacing all occurrences of `addr_of!(place)` with `&raw place`, and > all occurrences of `addr_of_mut!(place)` with `&raw mut place`. > > Utilizing the new feature will allow us to reduce macro complexity, and > improve consistency with existing reference syntax as `&raw`, `&raw mut` > is very similar to `&`, `&mut` making it fit more naturally with other > existing code. > > Depends on: Patch 1/3 0001-rust-enable-raw_ref_op-feature.patch This information shouldn't be in the commit message. You can put it below the `---` (that won't end up in the commit message). But since you sent this as part of a series, you don't need to mention it. > Suggested-by: Benno Lossin <y86-dev(a)protonmail.com> > Link: https://github.com/Rust-for-Linux/linux/issues/1148 > Signed-off-by: Antonio Hickey <contact(a)antoniohickey.com> > --- > rust/kernel/block/mq/request.rs | 4 ++-- > rust/kernel/faux.rs | 4 ++-- > rust/kernel/fs/file.rs | 2 +- > rust/kernel/init.rs | 8 ++++---- > rust/kernel/init/macros.rs | 28 +++++++++++++------------- > rust/kernel/jump_label.rs | 4 ++-- > rust/kernel/kunit.rs | 4 ++-- > rust/kernel/list.rs | 2 +- > rust/kernel/list/impl_list_item_mod.rs | 6 +++--- > rust/kernel/net/phy.rs | 4 ++-- > rust/kernel/pci.rs | 4 ++-- > rust/kernel/platform.rs | 4 +--- > rust/kernel/rbtree.rs | 22 ++++++++++---------- > rust/kernel/sync/arc.rs | 2 +- > rust/kernel/task.rs | 4 ++-- > rust/kernel/workqueue.rs | 8 ++++---- > 16 files changed, 54 insertions(+), 56 deletions(-) [...] > diff --git a/rust/kernel/jump_label.rs b/rust/kernel/jump_label.rs > index 4e974c768dbd..05d4564714c7 100644 > --- a/rust/kernel/jump_label.rs > +++ b/rust/kernel/jump_label.rs > @@ -20,8 +20,8 @@ > #[macro_export] > macro_rules! static_branch_unlikely { > ($key:path, $keytyp:ty, $field:ident) => {{ > - let _key: *const $keytyp = ::core::ptr::addr_of!($key); > - let _key: *const $crate::bindings::static_key_false = ::core::ptr::addr_of!((*_key).$field); > + let _key: *const $keytyp = &raw $key; This should be `&raw const $key`. I wrote that wrongly in the issue. > + let _key: *const $crate::bindings::static_key_false = &raw (*_key).$field; Same here. > let _key: *const $crate::bindings::static_key = _key.cast(); > > #[cfg(not(CONFIG_JUMP_LABEL))] > diff --git a/rust/kernel/kunit.rs b/rust/kernel/kunit.rs > index 824da0e9738a..18357dd782ed 100644 > --- a/rust/kernel/kunit.rs > +++ b/rust/kernel/kunit.rs > @@ -128,9 +128,9 @@ unsafe impl Sync for UnaryAssert {} > unsafe { > $crate::bindings::__kunit_do_failed_assertion( > kunit_test, > - core::ptr::addr_of!(LOCATION.0), > + &raw LOCATION.0, And here. > $crate::bindings::kunit_assert_type_KUNIT_ASSERTION, > - core::ptr::addr_of!(ASSERTION.0.assert), > + &raw ASSERTION.0.assert, Lastly here as well. --- Cheers, Benno

8 months

1
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0 0

arm64: Kernel crash at devm_kmalloc include/linux/device.h: drivers/base/devres.c

by Naresh Kamboju

Regression on arm64 FVP and rock-pi-4-b while booting the Linux next-20250312 and next-20250313. the following crash noticed with KVM Kconfigs. First seen on next-20250312. Good: next-20250311 Bad: 6.14.0-rc6-next-20250312 and 6.14.0-rc6-next-20250313 Boot regression: arm64 devm_kmalloc rk_iommu_of_xlate kernel panic Reported-by: Linux Kernel Functional Testing <lkft(a)linaro.org> ## Boot log [ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034] [ 0.000000] Linux version 6.14.0-rc6-next-20250313 (tuxmake@tuxmake) (aarch64-linux-gnu-gcc (Debian 13.3.0-12) 13.3.0, GNU ld (GNU Binutils for Debian) 2.44) #1 SMP PREEMPT @1741850074 [ 0.000000] KASLR disabled due to lack of seed [ 0.000000] Machine model: Radxa ROCK Pi 4B <trim> [ 1.028830] SuperH (H)SCI(F) driver initialized [ 1.030168] STM32 USART driver initialized [ 1.052086] Unable to handle kernel NULL pointer dereference at virtual address 00000000000002a0 [ 1.052877] Mem abort info: [ 1.053137] ESR = 0x0000000096000004 [ 1.053481] EC = 0x25: DABT (current EL), IL = 32 bits [ 1.053960] SET = 0, FnV = 0 [ 1.054241] EA = 0, S1PTW = 0 [ 1.054530] FSC = 0x04: level 0 translation fault [ 1.054971] Data abort info: [ 1.055236] ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 [ 1.055760] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 1.056216] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 1.056693] [00000000000002a0] user address but active_mm is swapper [ 1.057264] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP [ 1.057821] Modules linked in: [ 1.058105] CPU: 4 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.14.0-rc6-next-20250313 #1 [ 1.058823] Hardware name: Radxa ROCK Pi 4B (DT) [ 1.059236] pstate: 00000005 (nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 1.059854] pc : devm_kmalloc (include/linux/device.h:805 drivers/base/devres.c:853) [ 1.060225] lr : rk_iommu_of_xlate (drivers/iommu/rockchip-iommu.c:1152) [ 1.060614] sp : ffff80008306b7c0 [ 1.060913] x29: ffff80008306b7c0 x28: ffff8000825a9068 x27: ffff80008225ce00 [ 1.061560] x26: 0000000000000001 x25: ffff80008225e188 x24: ffff000000eafa80 [ 1.062206] x23: 0000000000000000 x22: ffff800081af6a98 x21: 0000000000000000 [ 1.062850] x20: 0000000000000010 x19: 0000000000000000 x18: 00000000ffffffff [ 1.063493] x17: ffff0000019abc00 x16: ffff000001985400 x15: ffff80008306b820 [ 1.064136] x14: ffff000002736a1c x13: ffff00000273627c x12: 0101010101010101 [ 1.064780] x11: 7f7f7f7f7f7f7f7f x10: 000000000016f8a0 x9 : ffff800080b65870 [ 1.065424] x8 : ffff80008306b718 x7 : 0000000000000000 x6 : 0000000000000001 [ 1.066066] x5 : ffff800082890000 x4 : ffff8000828905f0 x3 : 0000000000000000 [ 1.066708] x2 : 0000000000000dc0 x1 : 0000000000000010 x0 : 0000000000000090 [ 1.067351] Call trace: [ 1.067576] devm_kmalloc (include/linux/device.h:805 drivers/base/devres.c:853) (P) [ 1.067937] rk_iommu_of_xlate (drivers/iommu/rockchip-iommu.c:1152) [ 1.068295] of_iommu_xlate (drivers/iommu/of_iommu.c:39) [ 1.068629] of_iommu_configure (drivers/iommu/of_iommu.c:71 drivers/iommu/of_iommu.c:98 drivers/iommu/of_iommu.c:149) [ 1.069008] of_dma_configure_id (drivers/of/device.c:161) [ 1.069392] platform_dma_configure (drivers/base/platform.c:1455) [ 1.069796] __iommu_probe_device (drivers/iommu/iommu.c:430 drivers/iommu/iommu.c:569) [ 1.070194] probe_iommu_group (drivers/iommu/iommu.c:1722) [ 1.070553] bus_for_each_dev (drivers/base/bus.c:370) [ 1.070906] iommu_device_register (drivers/iommu/iommu.c:1875 drivers/iommu/iommu.c:276) [ 1.071304] rk_iommu_probe (drivers/iommu/rockchip-iommu.c:1263) [ 1.071652] platform_probe (drivers/base/platform.c:1404) [ 1.071986] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) [ 1.072316] __driver_probe_device (drivers/base/dd.c:800) [ 1.072716] driver_probe_device (drivers/base/dd.c:830) [ 1.073100] __driver_attach (drivers/base/dd.c:1217) [ 1.073453] bus_for_each_dev (drivers/base/bus.c:370) [ 1.073805] driver_attach (drivers/base/dd.c:1235) [ 1.074135] bus_add_driver (drivers/base/bus.c:678) [ 1.074488] driver_register (drivers/base/driver.c:249) [ 1.074836] __platform_driver_register (drivers/base/platform.c:868) [ 1.075261] rk_iommu_driver_init (drivers/iommu/rockchip-iommu.c:1380) [ 1.075644] do_one_initcall (init/main.c:1257) [ 1.075996] kernel_init_freeable (init/main.c:1318 (discriminator 1) init/main.c:1335 (discriminator 1) init/main.c:1354 (discriminator 1) init/main.c:1567 (discriminator 1)) [ 1.076393] kernel_init (init/main.c:1461) [ 1.076720] ret_from_fork (arch/arm64/kernel/entry.S:863) [ 1.077053] Code: aa0003f5 b1020020 a90153f3 aa0103f4 (b942a2b7) All code ======== 0: aa0003f5 mov x21, x0 4: b1020020 adds x0, x1, #0x80 8: a90153f3 stp x19, x20, [sp, #16] c: aa0103f4 mov x20, x1 10:* b942a2b7 ldr w23, [x21, #672] <-- trapping instruction Code starting with the faulting instruction =========================================== 0: b942a2b7 ldr w23, [x21, #672] [ 1.077594] ---[ end trace 0000000000000000 ]--- [ 1.078059] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b [ 1.078736] SMP: stopping secondary CPUs [ 1.079099] Kernel Offset: disabled [ 1.079412] CPU features: 0x0400,00041058,01000400,8200421b [ 1.079909] Memory Limit: none [ 1.080188] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b ]--- ## Source * Kernel version: 6.14.0-rc6-next-20250313 * Git tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git * Git sha: 613af589b566093ce7388bf3202fca70d742c166 * Git describe: 6.14.0-rc6-next-20250313 * Project details: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250305/ * Architectures: arm64 * Compilers: gcc-13 ## Test data * Test log: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250313/te… * Test history: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250313/te… * Test details: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250313/te… * Build link: https://storage.tuxsuite.com/public/linaro/lkft/builds/2uFgT27J8KGNrdNXzKgU… * Kernel config: https://storage.tuxsuite.com/public/linaro/lkft/builds/2uFgT27J8KGNrdNXzKgU… -- Linaro LKFT https://lkft.linaro.org

8 months

2
1
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[PATCH net-next] selftests: net: bump GRO timeout for gro/setup_veth

by Jakub Kicinski

Commit 51bef03e1a71 ("selftests/net: deflake GRO tests") recently switched to NAPI suspension, and lowered the timeout from 1ms to 100us. This started causing flakes in netdev-run CI. Let's bump it to 200us. In a quick test of a debug kernel I see failures with 100us, with 200us in 5 runs I see 2 completely clean runs and 3 with a single retry (GRO test will retry up to 5 times). Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> --- CC: krakauer(a)google.com CC: willemb(a)google.com CC: shuah(a)kernel.org CC: linux-kselftest(a)vger.kernel.org --- tools/testing/selftests/net/setup_veth.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/net/setup_veth.sh b/tools/testing/selftests/net/setup_veth.sh index eb3182066d12..152bf4c65747 100644 --- a/tools/testing/selftests/net/setup_veth.sh +++ b/tools/testing/selftests/net/setup_veth.sh @@ -11,7 +11,7 @@ setup_veth_ns() { local -r ns_mac="$4" [[ -e /var/run/netns/"${ns_name}" ]] || ip netns add "${ns_name}" - echo 100000 > "/sys/class/net/${ns_dev}/gro_flush_timeout" + echo 200000 > "/sys/class/net/${ns_dev}/gro_flush_timeout" echo 1 > "/sys/class/net/${ns_dev}/napi_defer_hard_irqs" ip link set dev "${ns_dev}" netns "${ns_name}" mtu 65535 ip -netns "${ns_name}" link set dev "${ns_dev}" up -- 2.48.1

8 months

3
2
0 0

[PATCH net-next v22 00/23] Introducing OpenVPN Data Channel Offload

by Antonio Quartulli

Notable changes since v21: * accessed crypto_slot->primary_idx via READ/WRITE_ONCE * made ovpn_aead_init() static * converted link tx/rx packet counters from u32 to to uint * ensured all u32 NL attributes are read by nla_get_u32() * ensured all u32 NL attrivutes are written by nla_put_u32() * reset cache upon float or local endpoint change * dropped check for delta > 0 in keepalive worker scheduling * improved comments in update endpoints logic * converted local_ip to void* to avoid useless casts Please note that some patches were already reviewed/tested by a few people. These patches have retained the tags as they have hardly been touched. The latest code can also be found at: https://github.com/OpenVPN/ovpn-net-next Thanks a lot! Best Regards, Antonio Quartulli OpenVPN Inc. --- Changes in v21: - EDITME: describe what is new in this series revision. - EDITME: use bulletpoints and terse descriptions. - Link to v20: https://lore.kernel.org/r/20250227-b4-ovpn-v20-0-93f363310834@openvpn.net --- Antonio Quartulli (23): net: introduce OpenVPN Data Channel Offload (ovpn) ovpn: add basic netlink support ovpn: add basic interface creation/destruction/management routines ovpn: keep carrier always on for MP interfaces ovpn: introduce the ovpn_peer object ovpn: introduce the ovpn_socket object ovpn: implement basic TX path (UDP) ovpn: implement basic RX path (UDP) ovpn: implement packet processing ovpn: store tunnel and transport statistics ovpn: implement TCP transport skb: implement skb_send_sock_locked_with_flags() ovpn: add support for MSG_NOSIGNAL in tcp_sendmsg ovpn: implement multi-peer support ovpn: implement peer lookup logic ovpn: implement keepalive mechanism ovpn: add support for updating local or remote UDP endpoint ovpn: implement peer add/get/dump/delete via netlink ovpn: implement key add/get/del/swap via netlink ovpn: kill key and notify userspace in case of IV exhaustion ovpn: notify userspace when a peer is deleted ovpn: add basic ethtool support testing/selftests: add test tool and scripts for ovpn module Documentation/netlink/specs/ovpn.yaml | 367 +++ Documentation/netlink/specs/rt_link.yaml | 16 + MAINTAINERS | 11 + drivers/net/Kconfig | 15 + drivers/net/Makefile | 1 + drivers/net/ovpn/Makefile | 22 + drivers/net/ovpn/bind.c | 55 + drivers/net/ovpn/bind.h | 101 + drivers/net/ovpn/crypto.c | 211 ++ drivers/net/ovpn/crypto.h | 145 ++ drivers/net/ovpn/crypto_aead.c | 409 ++++ drivers/net/ovpn/crypto_aead.h | 29 + drivers/net/ovpn/io.c | 462 ++++ drivers/net/ovpn/io.h | 34 + drivers/net/ovpn/main.c | 339 +++ drivers/net/ovpn/main.h | 14 + drivers/net/ovpn/netlink-gen.c | 213 ++ drivers/net/ovpn/netlink-gen.h | 41 + drivers/net/ovpn/netlink.c | 1249 ++++++++++ drivers/net/ovpn/netlink.h | 18 + drivers/net/ovpn/ovpnpriv.h | 57 + drivers/net/ovpn/peer.c | 1367 +++++++++++ drivers/net/ovpn/peer.h | 163 ++ drivers/net/ovpn/pktid.c | 129 ++ drivers/net/ovpn/pktid.h | 87 + drivers/net/ovpn/proto.h | 118 + drivers/net/ovpn/skb.h | 61 + drivers/net/ovpn/socket.c | 244 ++ drivers/net/ovpn/socket.h | 49 + drivers/net/ovpn/stats.c | 21 + drivers/net/ovpn/stats.h | 47 + drivers/net/ovpn/tcp.c | 592 +++++ drivers/net/ovpn/tcp.h | 36 + drivers/net/ovpn/udp.c | 442 ++++ drivers/net/ovpn/udp.h | 25 + include/linux/skbuff.h | 2 + include/uapi/linux/if_link.h | 15 + include/uapi/linux/ovpn.h | 109 + include/uapi/linux/udp.h | 1 + net/core/skbuff.c | 18 +- net/ipv6/af_inet6.c | 1 + net/ipv6/udp.c | 1 + tools/testing/selftests/Makefile | 1 + tools/testing/selftests/net/ovpn/.gitignore | 2 + tools/testing/selftests/net/ovpn/Makefile | 31 + tools/testing/selftests/net/ovpn/common.sh | 92 + tools/testing/selftests/net/ovpn/config | 10 + tools/testing/selftests/net/ovpn/data64.key | 5 + tools/testing/selftests/net/ovpn/ovpn-cli.c | 2395 ++++++++++++++++++++ tools/testing/selftests/net/ovpn/tcp_peers.txt | 5 + .../testing/selftests/net/ovpn/test-chachapoly.sh | 9 + .../selftests/net/ovpn/test-close-socket-tcp.sh | 9 + .../selftests/net/ovpn/test-close-socket.sh | 45 + tools/testing/selftests/net/ovpn/test-float.sh | 9 + tools/testing/selftests/net/ovpn/test-tcp.sh | 9 + tools/testing/selftests/net/ovpn/test.sh | 113 + tools/testing/selftests/net/ovpn/udp_peers.txt | 5 + 57 files changed, 10072 insertions(+), 5 deletions(-) --- base-commit: 40587f749df216889163dd6e02d88ad53e759e66 change-id: 20241002-b4-ovpn-eeee35c694a2 Best regards, -- Antonio Quartulli <antonio(a)openvpn.net>

8 months

2
24
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[PATCH v7 00/10] iommufd: Add vIOMMU infrastructure (Part-2: vDEVICE)

by Nicolin Chen

Following the previous vIOMMU series, this adds another vDEVICE structure, representing the association from an iommufd_device to an iommufd_viommu. This gives the whole architecture a new "v" layer: _______________________________________________________________________ | iommufd (with vIOMMU/vDEVICE) | | _____________ _____________ | | | | | | | | |----------------| vIOMMU |<---| vDEVICE |<------| | | | | | |_____________| | | | | ______ | | _____________ ___|____ | | | | | | | | | | | | | | | IOAS |<---|(HWPT_PAGING)|<---| HWPT_NESTED |<--| DEVICE | | | | |______| |_____________| |_____________| |________| | |______|________|______________|__________________|_______________|_____| | | | | | ______v_____ | ______v_____ ______v_____ ___v__ | struct | | PFN | (paging) | | (nested) | |struct| |iommu_device| |------>|iommu_domain|<----|iommu_domain|<----|device| |____________| storage|____________| |____________| |______| This vDEVICE object is used to collect and store all vIOMMU-related device information/attributes in a VM. As an initial series for vDEVICE, add only the virt_id to the vDEVICE, which is a vIOMMU specific device ID in a VM: e.g. vSID of ARM SMMUv3, vDeviceID of AMD IOMMU, and vRID of Intel VT-d to a Context Table. This virt_id helps IOMMU drivers to link the vID to a pID of the device against the physical IOMMU instance. This is essential for a vIOMMU-based invalidation, where the request contains a device's vID for a device cache flush, e.g. ATC invalidation. Therefore, with this vDEVICE object, support a vIOMMU-based invalidation, by reusing IOMMUFD_CMD_HWPT_INVALIDATE for a vIOMMU object to flush cache with a given driver data. As for the implementation of the series, add driver support in ARM SMMUv3 for a real world use case. This series is on Github: https://github.com/nicolinc/iommufd/commits/iommufd_viommu_p2-v7 (QEMU branch for testing will be provided in Jason's nesting series) Changelog v7 * Added "Reviewed-by" from Jason * Corrected a line of comments in iommufd_vdevice_destroy() v6 https://lore.kernel.org/all/cover.1730313494.git.nicolinc@nvidia.com/ * Fixed kdoc in the uAPI header * Fixed indentations in iommufd.rst * Replaced vdev->idev with vdev->dev * Added "Reviewed-by" from Kevin and Jason * Updated kdoc of struct iommu_vdevice_alloc * Fixed lockdep function call in iommufd_viommu_find_dev * Added missing iommu_dev validation between viommu and idev * Skipped SMMUv3 driver changes (to post in a separate series) * Replaced !cache_invalidate_user in WARN_ON of the allocation path with cache_invalidate_user validation in iommufd_hwpt_invalidate v5 https://lore.kernel.org/all/cover.1729897278.git.nicolinc@nvidia.com/ * Dropped driver-allocated vDEVICE support * Changed vdev_to_dev helper to iommufd_viommu_find_dev v4 https://lore.kernel.org/all/cover.1729555967.git.nicolinc@nvidia.com/ * Added missing brackets in switch-case * Fixed the unreleased idev refcount issue * Reworked the iommufd_vdevice_alloc allocator * Dropped support for IOMMU_VIOMMU_TYPE_DEFAULT * Added missing TEST_LENGTH and fail_nth coverages * Added a verification to the driver-allocated vDEVICE object * Added an iommufd_vdevice_abort for a missing mutex protection * Added a u64 structure arm_vsmmu_invalidation_cmd for user command conversion v3 https://lore.kernel.org/all/cover.1728491532.git.nicolinc@nvidia.com/ * Added Jason's Reviewed-by * Split this invalidation part out of the part-1 series * Repurposed VDEV_ID ioctl to a wider vDEVICE structure and ioctl * Reduced viommu_api functions by allowing drivers to access viommu and vdevice structure directly * Dropped vdevs_rwsem by using xa_lock instead * Dropped arm_smmu_cache_invalidate_user v2 https://lore.kernel.org/all/cover.1724776335.git.nicolinc@nvidia.com/ * Limited vdev_id to one per idev * Added a rw_sem to protect the vdev_id list * Reworked driver-level APIs with proper lockings * Added a new viommu_api file for IOMMUFD_DRIVER config * Dropped useless iommu_dev point from the viommu structure * Added missing index numnbers to new types in the uAPI header * Dropped IOMMU_VIOMMU_INVALIDATE uAPI; Instead, reuse the HWPT one * Reworked mock_viommu_cache_invalidate() using the new iommu helper * Reordered details of set/unset_vdev_id handlers for proper lockings v1 https://lore.kernel.org/all/cover.1723061377.git.nicolinc@nvidia.com/ Thanks! Nicolin Jason Gunthorpe (1): iommu: Add iommu_copy_struct_from_full_user_array helper Nicolin Chen (9): iommufd/viommu: Add IOMMUFD_OBJ_VDEVICE and IOMMU_VDEVICE_ALLOC ioctl iommufd/selftest: Add IOMMU_VDEVICE_ALLOC test coverage iommu/viommu: Add cache_invalidate to iommufd_viommu_ops iommufd: Allow hwpt_id to carry viommu_id for IOMMU_HWPT_INVALIDATE iommufd/viommu: Add iommufd_viommu_find_dev helper iommufd/selftest: Add mock_viommu_cache_invalidate iommufd/selftest: Add IOMMU_TEST_OP_DEV_CHECK_CACHE test command iommufd/selftest: Add vIOMMU coverage for IOMMU_HWPT_INVALIDATE ioctl Documentation: userspace-api: iommufd: Update vDEVICE drivers/iommu/iommufd/iommufd_private.h | 18 ++ drivers/iommu/iommufd/iommufd_test.h | 30 +++ include/linux/iommu.h | 48 ++++- include/linux/iommufd.h | 22 ++ include/uapi/linux/iommufd.h | 31 ++- tools/testing/selftests/iommu/iommufd_utils.h | 83 +++++++ drivers/iommu/iommufd/driver.c | 13 ++ drivers/iommu/iommufd/hw_pagetable.c | 40 +++- drivers/iommu/iommufd/main.c | 6 + drivers/iommu/iommufd/selftest.c | 98 ++++++++- drivers/iommu/iommufd/viommu.c | 76 +++++++ tools/testing/selftests/iommu/iommufd.c | 204 +++++++++++++++++- .../selftests/iommu/iommufd_fail_nth.c | 4 + Documentation/userspace-api/iommufd.rst | 41 +++- 14 files changed, 688 insertions(+), 26 deletions(-) base-commit: 0780dd4af09a5360392f5c376c35ffc2599a9c0e -- 2.43.0

8 months

4
14
0 0

[PATCHv5 net 0/3] bond: fix xfrm offload issues

by Hangbin Liu

The first patch fixes the incorrect locks using in bond driver. The second patch fixes the xfrm offload feature during setup active-backup mode. The third patch add a ipsec offload testing. v5: use list_for_each_entry_safe() when del item in list (Nikolay Aleksandrov) do not call spin_lock_bh in sleep function xdo_dev_state_free (Nikolay Aleksandrov) set xso.real_dev = NULL to avoid __xfrm_state_delete() is called in parallel() (Cosmin Ratiu) remove spin lock in bond_ipsec_add_sa_all() as it doesn't resolve the race condition. v4: hold xs->lock for bond_ipsec_{del, add}_sa_all (Cosmin Ratiu) use the defer helpers in lib.sh for selftest (Petr Machata) v3: move the ipsec deletion to bond_ipsec_free_sa (Cosmin Ratiu) v2: do not turn carrier on if bond change link failed (Nikolay Aleksandrov) move the mutex lock to a work queue (Cosmin Ratiu) Hangbin Liu (3): bonding: fix calling sleeping function in spin lock and some race conditions bonding: fix xfrm offload feature setup on active-backup mode selftests: bonding: add ipsec offload test drivers/net/bonding/bond_main.c | 71 +++++--- drivers/net/bonding/bond_netlink.c | 16 +- include/net/bonding.h | 1 + .../selftests/drivers/net/bonding/Makefile | 3 +- .../drivers/net/bonding/bond_ipsec_offload.sh | 154 ++++++++++++++++++ .../selftests/drivers/net/bonding/config | 4 + 6 files changed, 222 insertions(+), 27 deletions(-) create mode 100755 tools/testing/selftests/drivers/net/bonding/bond_ipsec_offload.sh -- 2.46.0

8 months

5
13
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[PATCH] selftests/mm/cow: Fix the incorrect error handling

by Cyan Yang

There are two error handlings did not check the correct return value. This patch will fix them. Fixes: f4b5fd6946e244cdedc3bbb9a1f24c8133b2077a ("selftests/vm: anon_cow: THP tests") Signed-off-by: Cyan Yang <cyan.yang(a)sifive.com> --- tools/testing/selftests/mm/cow.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/mm/cow.c b/tools/testing/selftests/mm/cow.c index 9446673645eb..16fcadc090a4 100644 --- a/tools/testing/selftests/mm/cow.c +++ b/tools/testing/selftests/mm/cow.c @@ -876,13 +876,13 @@ static void do_run_with_thp(test_fn fn, enum thp_run thp_run, size_t thpsize) mremap_size = thpsize / 2; mremap_mem = mmap(NULL, mremap_size, PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); - if (mem == MAP_FAILED) { + if (mremap_mem == MAP_FAILED) { ksft_test_result_fail("mmap() failed\n"); goto munmap; } tmp = mremap(mem + mremap_size, mremap_size, mremap_size, MREMAP_MAYMOVE | MREMAP_FIXED, mremap_mem); - if (tmp != mremap_mem) { + if (tmp == MAP_FAILED) { ksft_test_result_fail("mremap() failed\n"); goto munmap; } -- 2.39.5 (Apple Git-154)

8 months

3
4
0 0

[PATCH] selftest/powerpc/mm/pkey: fix build-break introduced by commit 00894c3fc917

by Madhavan Srinivasan

Build break was reported in the powerpc mailing list for next-20250218 with below errors make[1]: Nothing to be done for 'all'. BUILD_TARGET=/root/venkat/linux-next/tools/testing/selftests/powerpc/mm; mkdir -p $BUILD_TARGET; make OUTPUT=$BUILD_TARGET -k -C mm all CC pkey_exec_prot In file included from pkey_exec_prot.c:18: /root/venkat/linux-next/tools/testing/selftests/powerpc/include/pkeys.h: In function ‘pkeys_unsupported’: /root/venkat/linux-next/tools/testing/selftests/powerpc/include/pkeys.h:96:34: error: ‘PKEY_UNRESTRICTED’ undeclared (first use in this function) 96 | pkey = sys_pkey_alloc(0, PKEY_UNRESTRICTED); | ^~~~~~~~~~~~~~~~~ https://lore.kernel.org/all/20250113170619.484698-2-yury.khrustalev@arm.com/ patchset has been queued to arm64/for-next/pkey_unrestricted which is causing a build break in the selftest/powerpc builds. Commit 6d61527d931ba ("mm/pkey: Add PKEY_UNRESTRICTED macro") added a macro PKEY_UNRESTRICTED to handle implicit literal value of 0x0 (which is "unrestricted"). Add the same to selftest/powerpc/pkeys.h to fix the reported build break. Reported-by: Venkat Rao Bagalkote <venkat88(a)linux.ibm.com> Closes: https://lore.kernel.org/lkml/3267ea6e-5a1a-4752-96ef-8351c912d386@linux.ibm… Tested-by: Venkat Rao Bagalkote <venkat88(a)linux.ibm.com> Signed-off-by: Madhavan Srinivasan <maddy(a)linux.ibm.com> --- Catalin, can you take this fix via arm64/for-next/pkey_unrestricted? Patch applies clean on top of arm64/for-next/pkey_unrestricted tools/testing/selftests/powerpc/include/pkeys.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/testing/selftests/powerpc/include/pkeys.h b/tools/testing/selftests/powerpc/include/pkeys.h index c6d4063dd4f6..d6deb6ffa1b9 100644 --- a/tools/testing/selftests/powerpc/include/pkeys.h +++ b/tools/testing/selftests/powerpc/include/pkeys.h @@ -24,6 +24,9 @@ #undef PKEY_DISABLE_EXECUTE #define PKEY_DISABLE_EXECUTE 0x4 +#undef PKEY_UNRESTRICTED +#define PKEY_UNRESTRICTED 0x0 + /* Older versions of libc do not define this */ #ifndef SEGV_PKUERR #define SEGV_PKUERR 4 -- 2.48.1

8 months

2
2
0 0

[PATCH 6.1.y] selftests/vm: fix undefined reference of the `default_huge_page_size`

by Andrey Kalachev

The commit a584c7734a4d ("selftests: mm: fix map_hugetlb failure on 64K page size systems") backported the fix from v6.8 to stable v6.1. The patch uses default_huge_page_size() function, which definition moved into vm_util.[ch] by commit bd4d67e76f699 ("selftests/mm: merge default_huge_page_size() into one") merged to upsream since v6.4. However, in v6.1 common definition/declaration for the default_huge_page_size() we doesn't have, the following build error is seen: map_hugetlb.c:79:25: warning: implicit declaration of function ‘default_huge_page_size’ [-Wimplicit-function-declaration] 79 | hugepage_size = default_huge_page_size(); | ^~~~~~~~~~~~~~~~~~~~~~ /usr/bin/ld: /tmp/ccx95BZz.o: in function `main': map_hugetlb.c:(.text+0x104): undefined reference to `default_huge_page_size' Place default_huge_page_size() function body into map_hugetlb.c to fix this issue. Fixes: a584c7734a4d ("selftests: mm: fix map_hugetlb failure on 64K page size systems") Signed-off-by: Andrey Kalachev <kalachev(a)swemel.ru> --- tools/testing/selftests/vm/map_hugetlb.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/tools/testing/selftests/vm/map_hugetlb.c b/tools/testing/selftests/vm/map_hugetlb.c index c65c55b7a789..5826c50b6736 100644 --- a/tools/testing/selftests/vm/map_hugetlb.c +++ b/tools/testing/selftests/vm/map_hugetlb.c @@ -67,6 +67,30 @@ static int read_bytes(char *addr, size_t length) return 0; } +/* + * default_huge_page_size copied from mlock2-tests.c + */ +unsigned long default_huge_page_size(void) +{ + unsigned long hps = 0; + char *line = NULL; + size_t linelen = 0; + FILE *f = fopen("/proc/meminfo", "r"); + + if (!f) + return 0; + while (getline(&line, &linelen, f) > 0) { + if (sscanf(line, "Hugepagesize: %lu kB", &hps) == 1) { + hps <<= 10; + break; + } + } + + free(line); + fclose(f); + return hps; +} + int main(int argc, char **argv) { void *addr; -- 2.39.5

8 months

1
0
0 0

[PATCH 00/11] selftests: ublk: bug fixes & consolidation

by Ming Lei

Hello Jens and guys, This patchset fixes several issues(1, 2, 4) and consolidate & improve the tests in the following ways: - support shellcheck and fixes all warning - misc cleanup - improve cleanup code path(module load/unload, cleanup temp files) - help to reuse the same test source code and scripts for other projects(liburing[1], blktest, ...) - add two stress tests for covering IO workloads vs. removing device & killing ublk server, given buffer lifetime is one big thing for ublk-zc [1] https://github.com/ming1/liburing/commits/ublk-zc - just need one line change for overriding skip_code, libring uses 77 and kselftests takes 4 Ming Lei (11): selftests: ublk: make ublk_stop_io_daemon() more reliable selftests: ublk: fix build failure selftests: ublk: add --foreground command line selftests: ublk: fix parsing '-a' argument selftests: ublk: support shellcheck and fix all warning selftests: ublk: don't pass ${dev_id} to _cleanup_test() selftests: ublk: move zero copy feature check into _add_ublk_dev() selftests: ublk: load/unload ublk_drv when preparing & cleaning up tests selftests: ublk: add one stress test for covering IO vs. removing device selftests: ublk: add stress test for covering IO vs. killing ublk server selftests: ublk: improve test usability tools/testing/selftests/ublk/Makefile | 6 + tools/testing/selftests/ublk/kublk.c | 43 +++-- tools/testing/selftests/ublk/kublk.h | 2 + tools/testing/selftests/ublk/test_common.sh | 167 ++++++++++++++---- tools/testing/selftests/ublk/test_loop_01.sh | 13 +- tools/testing/selftests/ublk/test_loop_02.sh | 14 +- tools/testing/selftests/ublk/test_loop_03.sh | 16 +- tools/testing/selftests/ublk/test_loop_04.sh | 14 +- tools/testing/selftests/ublk/test_null_01.sh | 9 +- .../testing/selftests/ublk/test_stress_01.sh | 47 +++++ .../testing/selftests/ublk/test_stress_02.sh | 47 +++++ 11 files changed, 300 insertions(+), 78 deletions(-) create mode 100755 tools/testing/selftests/ublk/test_stress_01.sh create mode 100755 tools/testing/selftests/ublk/test_stress_02.sh -- 2.47.0

8 months

3
20
0 0

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