Changes in Makefile

b2128290c29902315e632ea59e0504d6bc9e9b42 - Merge remote-tracking branch 'drm/drm-next' into msm-next-backmerge

Sat, 18 Jul 2026 17:06:55 +0200

Merge remote-tracking branch 'drm/drm-next' into msm-next-backmergeBackmerge of drm-next, mainly to pick up dt bindings docs updates toavoid conflicts.Signed-off-by: Rob Clark List of files: /linux/tools/testing/selftests/bpf/libarena/Makefile

637315cb400eed1dbe721954fea437a61a2d65b2 - Merge tag 'kvm-riscv-7.3-1' of https://github.com/kvm-riscv/linux into HEAD

Tue, 18 Aug 2026 13:07:31 +0200

Merge tag 'kvm-riscv-7.3-1' of https://github.com/kvm-riscv/linux into HEADKVM/riscv changes for 7.3- Svadu/Zicfiss/Zicfilp FWFT support for Guest- Use try_cmpxchg for IMSIC MRIF RMW- More arch-specific tracepoints in KVM RISC-V- Eager Page Splitting for KVM RISC-V- Optimize hfence request handling for SMP Guests- Improve dirty log clearing by skipping zero bits in mask- Guard HFENCE range loops against overflow- CPU PM notifiers in KVM RISC-V for non-retentive idle states- Fix kernel-mode vector context save/restore for Guest List of files: /linux/tools/testing/selftests/bpf/libarena/Makefile

efe86f088f48f18c27b648e5724048947f3b7fb4 - Merge drm/drm-next into drm-xe-next

Tue, 14 Jul 2026 15:40:31 +0200

Merge drm/drm-next into drm-xe-nextSync some i915/display changesSigned-off-by: Rodrigo Vivi List of files: /linux/tools/testing/selftests/bpf/libarena/Makefile

6d177908bad5992e17669030db41caab88041d5e - Merge drm/drm-next into drm-intel-next

Tue, 30 Jun 2026 14:55:43 +0200

Merge drm/drm-next into drm-intel-nextSync with v7.2-rc1.Signed-off-by: Jani Nikula List of files: /linux/tools/testing/selftests/bpf/libarena/Makefile

827b9aabd3ea3e96d5e48abed9f44dbd1e550d4e - Merge drm/drm-next into drm-misc-next

Tue, 30 Jun 2026 10:16:00 +0200

Merge drm/drm-next into drm-misc-nextBackmerging to get drm-misc-next to v7.2-rc1.Signed-off-by: Thomas Zimmermann List of files: /linux/tools/testing/selftests/bpf/libarena/Makefile

7dd19adaaac9a161723a24de7c270861063ec6ac - Merge tag 'v7.2-rc1' into drm-rust-next

Sun, 28 Jun 2026 22:39:43 +0200

Merge tag 'v7.2-rc1' into drm-rust-nextMerge v7.2-rc1 into drm-rust-next to start the next cycle.Devres now requires T: 'static, which conflicts with shmem::Object usingDevres> without that bound. Resolve by adding 'staticas a supertrait to DriverObject and DeviceContext, which does notrestrict any current use cases since DriverObject is always implementedon owned, refcounted types and DeviceContext is a sealed marker traitwith only unit-type implementors.If DriverObject (or DeviceContext) ever becomes lifetime-parameterized(e.g. via a GAT for TTM backed objects), the 'static supertrait can berelaxed at that point.Signed-off-by: Danilo Krummrich List of files: /linux/tools/testing/selftests/bpf/libarena/Makefile

0eaed89c18aeedf0898baf2dbf5ff027c6795152 - Merge tag 'timers-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/daniel.lezcano/linux into timers/clocksource

Mon, 17 Aug 2026 10:29:52 +0200

Merge tag 'timers-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/daniel.lezcano/linux into timers/clocksource - Use designated initializers for sh_mtu2, sh_cmt, and sh_tmu, and drop the unused initializer in the platform_device_id table for sh_mtu2 (Uwe Kleine-König) - Remove redundant dev_err()/dev_err_probe() messages when devm_request_*_irq() fails, as the helper already logs an error message (Pan Chuang) - Fix a boot hang on Allwinner D1 when a forced minimum delta is used with the sun4i timer (Felix Yan) - Fix an IRQ leak in the cpuhp_setup_state() error path by freeing the IRQ on failure in the NXP PIT driver (WenTao Liang) - Fix incorrect unmapping of shared MMIO between the clocksource and clockevent drivers. If one of them fails to initialize, the error path unmaps the shared MMIO region, leaving the other driver with an invalid mapping on clps711x (Guangshuo Li) - Make the samsung_pwm driver compatible with PREEMPT_RT by replacing regular spinlocks with raw_spinlock_t in atomic contexts (Marek Szyprowski) - Use __raw_readl() and __raw_writel() instead of ioread32() and iowrite32() to support SWAP_IO_SPACE in the rtl-otto driver (Rustam Adilov) - Fix a missing clk_disable_unprepare() call in the timer initialization error path of the Armada driver (Yuho Choi)Link: https://lore.kernel.org/lkml/75feea31-683d-45a1-87f4-ab045e0152ae@oss.qualcomm.com List of files: /linux/tools/testing/selftests/bpf/libarena/Makefile

b4d85f863e5a6f1fa01b186001af0f68f4f5239e - Merge branch 'next' into for-linus

Sat, 15 Aug 2026 06:26:07 +0200

Merge branch 'next' into for-linusPrepare input updates for 7.3 merge window. List of files: /linux/tools/testing/selftests/bpf/libarena/Makefile

76904fccf81936c084faebc73ac72c0919a42941 - Merge tag 'v7.2-rc3' into next

Tue, 14 Jul 2026 04:06:00 +0200

Merge tag 'v7.2-rc3' into nextSync up with mainline to pull in stable fixes to avoid merge conflicts. List of files: /linux/tools/testing/selftests/bpf/libarena/Makefile

00599d4841790d05401820a96cf7edb193888b00 - Merge drm/drm-fixes into drm-misc-fixes

Mon, 29 Jun 2026 17:58:00 +0200

Merge drm/drm-fixes into drm-misc-fixesPull in tag v7.2-rc1 so that drm-misc-fixes becomes useful again,and drm-misc-next-fixes can be closed.Signed-off-by: Maarten Lankhorst List of files: /linux/tools/testing/selftests/bpf/libarena/Makefile

872cc6abda1507429b97cc7b42a9dae51ee0a668 - Merge tag 'bpf-next-7.2' into loongarch-next

Mon, 22 Jun 2026 05:29:06 +0200

Merge tag 'bpf-next-7.2' into loongarch-nextLoongArch architecture changes for 7.2 need the bpf changes to add newfeatures, so merge 'bpf-next-7.2' to create a base. List of files: /linux/tools/testing/selftests/bpf/libarena/Makefile

9611c0ce215a66770ccbe5c126bf57ba8c31bcad - Merge commit '6beaec3aee9852438b89e4d7891caf5e84d45851' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into gpio/for-current

Fri, 19 Jun 2026 10:50:17 +0200

Merge commit '6beaec3aee9852438b89e4d7891caf5e84d45851' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into gpio/for-currentThis pulls in the merge commit for MFD updates for v7.2. The PR containsa build-time dependency of one of the GPIO commits that will follow. List of files: /linux/tools/testing/selftests/bpf/libarena/Makefile

9c87e61e3c5797277407ba5eae4eac8a52be3fa3 - Merge tag 'bpf-next-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Wed, 17 Jun 2026 10:18:14 +0200

Merge tag 'bpf-next-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextPull bpf updates from Alexei Starovoitov: "Major changes: - Recover from BPF arena page faults using a scratch page and add ptep_try_set() for lockless empty-slot installs on x86 and arm64. This allows BPF kfuncs to access arena pointers directly. The 'arena_direct_access' stable branch was created for this work and was pulled into sched-ext and bpf-next trees (Tejun Heo, Kumar Kartikeya Dwivedi) - Lift old restriction and support 6+ arguments in BPF programs and kfuncs on x86 and arm64 (Yonghong Song, Puranjay Mohan) Other features and fixes: - Add 24-bit BTF vlen and reclaim unused bits in the BTF UAPI to ease addition of new BTF kinds (Alan Maguire) - Raise the maximum BPF call chain depth from 8 to 16 frames (Alexei Starovoitov) - Refactor object relationship tracking in the verifier and fix a dynptr use-after-free bug (Amery Hung) - Harden the signed program loader and reject exclusive maps as inner maps (Daniel Borkmann) - Replace the verifier min/max bounds fields with a circular number (cnum) representation and improve 32->64 bit range refinements (Eduard Zingerman) - Introduce the arena library and runtime (libarena) with a buddy allocator, rbtree and SPMC queue data structures, ASAN support and a parallel test harness. Allow subprograms to return arena pointers and switch to a BTF type-tag based __arena annotation (Emil Tsalapatis) - Cache build IDs in the sleepable stackmap path and avoid faultable build ID reads under mm locks (Ihor Solodrai) - Introduce the tracing_multi link to attach a single BPF program to many kernel functions at once. Allow specifying the uprobe_multi target via FD (Jiri Olsa) - Extend the bpf_list family of kfuncs with bpf_list_add/del(), and bpf_list_is_first/is_last/empty() (Kaitao Cheng) - Extend the BPF syscall with common attributes support for prog_load, btf_load and map_create (Leon Hwang) - Wrap rhashtable as BPF map (Mykyta Yatsenko, Herbert Xu) - Add sleepable support for tracepoint programs and fix deadlocks in LRU map due to NMI reentry (Mykyta Yatsenko) - Fix OOB access in bpf_flow_keys, fix nullness analysis of inner arrays, enforce write checks for global subprograms (Nuoqi Gui) - Report the maximum combined stack depth and print a breakdown of instructions processed per subprogram (Paul Chaignon) - Add an XDP load-balancer benchmark and arm64 JIT support for stack arguments (Puranjay Mohan) - Add kfuncs to traverse over wakeup_sources (Samuel Wu) - Allow sleepable BPF programs to use LPM trie maps directly (Vlad Poenaru) - Many more fixes and cleanups across the verifier, BTF, sockmap, devmap, bpffs, security hooks, s390/riscv/loongarch JITs, rqspinlock, libbpf, bpftool, selftests"* tag 'bpf-next-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (336 commits) selftests/bpf: Work around llvm stack overflow in crypto progs selftests/bpf: add test for bpf_msg_pop_data() overflow bpf, sockmap: fix integer overflow in bpf_msg_pop_data() bounds check sockmap: Fix use-after-free in udp_bpf_recvmsg() bpf, sockmap: keep sk_msg copy state in sync bpf, sockmap: Fix wrong rsge offset in bpf_msg_push_data() bpf, sockmap: reject overflowing copy + len in bpf_msg_push_data() selftsets/bpf: Retry map update on helper_fill_hashmap() selftests/bpf: Add test for sleepable lsm_cgroup rejection selftests/bpf: Add test to verify the fix for bpf_setsockopt() helper bpf: Fix bpf_get/setsockopt to tos for ipv4-mapped ipv6 socket selftests/bpf: Avoid static LLVM linking for cross builds selftests/bpf: Use common CFLAGS for urandom_read selftests/bpf: Initialize operation name before use tools/bpf: build: Append extra cflags libbpf: Initialize CFLAGS before including Makefile.include bpftool: Append extra host flags bpftool: Avoid adding EXTRA_CFLAGS to HOST_CFLAGS bpftool: Pass host flags to bootstrap libbpf selftests/bpf: correct CONFIG_PPC64 macro name in comment ... List of files: /linux/tools/testing/selftests/bpf/libarena/Makefile

9f5b3ffc3f1dac7204e32eeeff84bc5cc55c393e - selftests/bpf: Rename libarena malloc/free methods

Tue, 28 Apr 2026 15:42:52 +0200

selftests/bpf: Rename libarena malloc/free methodsThe s390 architecture uses the token "free" for an enum, conflictingwith the malloc/free definitions. Rename the calls to arena_malloc andarena_free instead to prevent collisions.Reported-by: Ihor Solodrai Signed-off-by: Emil Tsalapatis Fixes: 86426a28c52d ("selftests/bpf: Add buddy allocator for libarena")Acked-by: Ihor Solodrai Link: https://lore.kernel.org/r/20260428134252.2783519-1-etsal@meta.comSigned-off-by: Alexei Starovoitov List of files: /linux/tools/testing/selftests/bpf/libarena/Makefile

7c8d208d816d0504aa916138ae097d9cb4ed4e56 - Merge branch 'introduce-arena-library-and-runtime'

Mon, 27 Apr 2026 03:12:22 +0200

Merge branch 'introduce-arena-library-and-runtime'Emil Tsalapatis says:====================Introduce arena library and runtimeAdd a new subdirectory to tools/testing/selftests/bpf called libarena,along with programs useful for writing arena-based BPF code. Thispatchset adds the following:1) libarena, a subdirectory where arena BPF code that is generally usefulto BPF arena programs can be easily added and tested.2) An ASAN runtime for BPF arena programs. BPF arenas allow for accessingmemory after it has been freed or if it is out of bounds, making it moredifficult to triage bugs combined to regular BPF. Use LLVM's recently addedsupport for address-space based sanitization to selectively sanitize justthe arena accesses.3) A buddy memory allocator that can be reused by BPF programs to handlememory allocation/deletion. The allocator uses the ASAN runtime to addaddress sanitization if requested.The patch includes testing for the new allocators and ASAN features thatcan be built from the top directory using "make libarena_test" and"make libarena_test_asan". The generated binaries reside in libarena/.The patch also adds test-progs-based selftests to the codebase for thelibarena code, so the new tests are run by ./test_progs.The patchset has the following stucture:1-3: Create basic libarena scaffolding and refactor existing headers.4-5: Add the ASAN runtime and associated scaffolding.6-8: Add the new buddy memory allocator along with selftests.Signed-off-by: Emil Tsalapatis HISTORY=======v8->v9 (https://lore.kernel.org/bpf/20260421165037.4736-1-emil@etsalapatis.com)- Added Matt's Acked-by for Patch 1- Replaced open coded fls with __builtin based calculation (Matt)- Add comment explaining the reasoning behind the zero variable (Matt)- Remove the self-contained runner and present selftests as examples (Kumar). The reasoning is that including selftests with the library is not effective because the library will be sync'ed outside the tree infrequently, so it would be ineffective in catching issues before they land.- Adjust syscall API for clarity and forward compatibility (Matt)- Reset asan_validate state after failed check (Sashiko)- Fix printf format specifier (Sashiko)- Rename syscall to be generic arena_info (Matt)- Namespace libarena headers by moving them to their own directory- Rename selftest_helpers to libarena/userspace.h to reflect it is not just for selftests.v7->v8 (https://lore.kernel.org/bpf/20260412174546.18684-1-emil@etsalapatis.com)- Duplicate READ_ONCE/WRITE_ONCE instead of moving it to bpf_experimental.h to keep libarena self-contained (Kumar)- Add libarena_asan test to test_progs and conditionally compile it if suppported (Kumar)- Add stderr parsing for buddy tests when run under test_progs (Kumar)- Move all arena-related headers into libarena and add its include/ subdirectory in the standard include path (Kumar)- Remove silent-by-default ASAN, add help message on test_libarena explaining that -v emits the messages (Kumar)- Add run_prog_args as a libarena helper- Add explanation on the use of __weak for the spinlock qnodesv6->v7 (https://lore.kernel.org/bpf/20260412011857.3387-1-emil@etsalapatis.com)- Modify patch 1 to allow operations between PTR_TO_ARENA src_regand dst_reg of any type. Adjust selftests accordingly (Alexei)- Remove unnecessary include in patch 5 (Song)- Removed unused definitions/assignments in patches 8/9, update patch descriptionsv5->v6 (https://lore.kernel.org/bpf/20260410163041.8063-1-emil@etsalapatis.com)- Fix subreg_def management for SCALAR += PTR_TO_ARENA operations (AI)- Add more selftests for the SCALAR += PTR_TO_ARENA patch (Sashiko)- Adjust fls() operation to be in line with the kernel version (Sashiko)- Address Sashiko selftests and debugging nits- Add ASAN loadN and storeN _noabort variants and associated BTF anchor- Remove unnecessary bit freeing of buddies during block splittingv4->v5 (https://lore.kernel.org/bpf/20260407045730.13359-1-emil@etsalapatis.com)Omitting various nits and fixups.- Properly adjust subreg_def for scalar += ptr_to_arena calls (Sashiko)- Remove extraneous definition from prog_tests/arena_spin_lock.c (Song)- Trim extraneous comments from ASAN and buddy (Alexei)- Remove asan_dummy call and replace with function pointer array (Alexei)- Remove usersapi.h header and merge it into common.h (Alexei)- Replace ASAN macros with function calls (Alexei)- Embed buddy lock into the struct and move the buddy allocator to __arena_global (Alexei)- Add commenting for buddy allocator constants (Alexei)- Add default buddy allocator directly in common.bpf.c, so that the user does not need to define it.- Expand test harnesses to dynamically find individual selftests. Now the selftests also reports each test individually (e.g., 5 entries for the buddy allocator instead of 1). This brings them to par with the rest of the test_progs.v3->v4 (https://lore.kernel.org/bpf/20260403042720.18862-1-emil@etsalapatis.com)- Add Acks by Song to patches 1-4.- Expand the verifier's handling of scalar/arena operations to include all 3-operand operations in Patch 1 (Alexei)- Add additional tests for arena/arena (allowed) and arena/pointer (not allowed)operations in Patch 2- Remove ASAN version of the library from default compilation since it requiresLLVM 22 and up (CI)- Rework buddy allocator locking for clarity and add comments- Fix From: email to be consistent with SOB- Address (most) Sashiko commentsv2->v3 (https://lore.kernel.org/bpf/20260127181610.86376-1-emil@etsalapatis.com)Nonexhaustive due to significant patch rework.- Do not duplicate WRITE_ONCE macro (Mykyta, Kumar)- Add SPDX headers (Alexei)- Remove bump/stack allocators (Alexei)- Integrate testing with test_progs (Kumar)- Add short description of ASAN algorithm at the top of the file (Alexei)v1->v2 (https://lore.kernel.org/bpf/20260122160131.2238331-1-etsal@meta.com/)- Added missing format string argument (AI)- Fix outdated selftests prog name check (AI)- Fixed stack allocation check for segment creation (AI)- Fix errors in non-ASAN bump allocator selftests (AI)- Propagate error value from individual selftests in selftest.c- Removed embedded metadata from bump allocator as it was needlessly complicating its behavior====================Link: https://patch.msgid.link/20260426190338.4615-1-emil@etsalapatis.comSigned-off-by: Alexei Starovoitov List of files: /linux/tools/testing/selftests/bpf/libarena/Makefile

86426a28c52d756a5edbe29885716128b8915991 - selftests/bpf: Add buddy allocator for libarena

Sun, 26 Apr 2026 21:03:36 +0200

selftests/bpf: Add buddy allocator for libarenaAdd a byte-oriented buddy allocator for libarena. The buddyallocator provides an alloc/free interface for small arena allocationsranging from 16 bytes to 512 KiB. Lower allocations values are roundedup to 16 bytes. The buddy allocator does not handle larger allocationsthat can instead use the existing bpf_arena_{alloc, free}_pages() kfunc.Signed-off-by: Emil Tsalapatis Link: https://lore.kernel.org/r/20260426190338.4615-7-emil@etsalapatis.comSigned-off-by: Alexei Starovoitov List of files: /linux/tools/testing/selftests/bpf/libarena/Makefile

cfc00618b9dfc75cd507f1a4f0d83b4429627399 - selftests/bpf: Add ASAN support for libarena selftests

Sun, 26 Apr 2026 21:03:35 +0200

selftests/bpf: Add ASAN support for libarena selftestsExpand the arena library selftest infrastructure to supportaddress sanitization. Add the compiler flags necessary tocompile the library under ASAN when supported.Signed-off-by: Emil Tsalapatis Link: https://lore.kernel.org/r/20260426190338.4615-6-emil@etsalapatis.comSigned-off-by: Alexei Starovoitov List of files: /linux/tools/testing/selftests/bpf/libarena/Makefile

d5327480a12a031f283c85c3c9c9201685099036 - selftests/bpf: Add basic libarena scaffolding

Sun, 26 Apr 2026 21:03:32 +0200

selftests/bpf: Add basic libarena scaffoldingAdd initial code and a Makefile for an arena-based BPF library. Modulescan be added just by including the source file in the library's src/subdirectory. Future commits will introduce the library code itself.The code includes workarounds that are removed in subsequent patchesthat ensure bisectability.Signed-off-by: Emil Tsalapatis Link: https://lore.kernel.org/r/20260426190338.4615-3-emil@etsalapatis.comSigned-off-by: Alexei Starovoitov List of files: /linux/tools/testing/selftests/bpf/libarena/Makefile