Re: [PATCH bpf-next v3 00/24] bpf: Various arm64 BPF JIT improvements

[patchwork-bot+netdevbpf@kernel.org]

Hello:

This series was applied to bpf/bpf-next.git (master)
by Alexei Starovoitov <ast@kernel.org>:

On Sun,  8 Nov 2026 20:26:26 +0100 you wrote:
> This series changes the arm64 BPF JIT to emit shorter and faster native
> code for the instruction patterns that LLVM-compiled programs hit in the
> real world. Every change stays within the lowering of a single BPF
> instruction. This is a similar effort as done recently for x86-64 BPF
> JIT [0].
> 
> On arm64 under vmtest.sh (qemu TCG), test_verifier, test_maps, jit_insns
> and jit_insns_blinded pass in full, and test_progs and its cpuv4 and
> no_alu32 flavors only fail tests that fail without the series as well
> or only under TCG. The encodings were checked against Arm's machine-readable
> A64 ISA XML: every A64_* macro and directly called encoder, run with
> boundary and invalid operands (39028 cases), gives the encoding and
> fields the Arm ARM expects or AARCH64_BREAK_FAULT for what it cannot
> encode.
> 
> [...]

Here is the summary with links:
  - [bpf-next,v3,01/24] bpf, arm64: Remove unused A64_BL, A64_BTI_C and A64_LDR32LIT
    https://git.kernel.org/bpf/bpf-next/c/0931830cc312
  - [bpf-next,v3,02/24] bpf, arm64: Free the offset table of a subprog in bpf_jit_free
    https://git.kernel.org/bpf/bpf-next/c/0ff09166d3d2
  - [bpf-next,v3,03/24] bpf, arm64: Free the private stack when a pass over the image fails
    https://git.kernel.org/bpf/bpf-next/c/346ea1557fd7
  - [bpf-next,v3,04/24] bpf, arm64: Emit ISB SY in the speculation barriers
    https://git.kernel.org/bpf/bpf-next/c/6a5b148dac53
  - [bpf-next,v3,05/24] arm64, insn: Reject sign extending loads of 64 bits
    https://git.kernel.org/bpf/bpf-next/c/182afb043e7e
  - [bpf-next,v3,06/24] bpf, arm64: Keep the ll/sc atomics address apart from the old value
    https://git.kernel.org/bpf/bpf-next/c/207aac32085d
  - [bpf-next,v3,07/24] bpf, arm64: Measure backward branches from the branch itself
    https://git.kernel.org/bpf/bpf-next/c/1963ac21c7c2
  - [bpf-next,v3,08/24] arm64, insn: Reject invalid and unpredictable operands in the encoders
    https://git.kernel.org/bpf/bpf-next/c/d860f6254d60
  - [bpf-next,v3,09/24] bpf, arm64: Widen the branch offsets before scaling them to bytes
    https://git.kernel.org/bpf/bpf-next/c/592f36e960d0
  - [bpf-next,v3,10/24] arm64, insn: Add the LDUR/STUR and TBZ/TBNZ encodings
    https://git.kernel.org/bpf/bpf-next/c/1fdba03c72cb
  - [bpf-next,v3,11/24] bpf: Divide by constants via uhmul and shmul in the verifier
    https://git.kernel.org/bpf/bpf-next/c/ffebe8b3e369
  - [bpf-next,v3,12/24] bpf, arm64: Consolidate the load and store emission into a helper
    https://git.kernel.org/bpf/bpf-next/c/1bb1bc5be527
  - [bpf-next,v3,13/24] bpf, arm64: Use the unscaled forms for negative and unaligned offsets
    https://git.kernel.org/bpf/bpf-next/c/6b3c7bde476f
  - [bpf-next,v3,14/24] bpf, arm64: Store zero immediates from the zero register
    https://git.kernel.org/bpf/bpf-next/c/e4939b2a54b9
  - [bpf-next,v3,15/24] bpf, arm64: Zero extend the arena offset in register offset accesses
    https://git.kernel.org/bpf/bpf-next/c/07d4e6947e37
  - [bpf-next,v3,16/24] bpf, arm64: Adjust compares with unencodable immediates by one
    https://git.kernel.org/bpf/bpf-next/c/a33de9a3bba3
  - [bpf-next,v3,17/24] bpf, arm64: Materialize immediates with fewer instructions
    https://git.kernel.org/bpf/bpf-next/c/e79c67bce1a2
  - [bpf-next,v3,18/24] bpf, arm64: Shorten the tail call sequence
    https://git.kernel.org/bpf/bpf-next/c/7dd5500c2c4f
  - [bpf-next,v3,19/24] bpf, arm64: Use mov or mvn for AND, OR and XOR with all ones
    https://git.kernel.org/bpf/bpf-next/c/4835c45b11d2
  - [bpf-next,v3,20/24] bpf, arm64: Use cbz, cbnz, tbz and tbnz for zero, sign and bit tests
    https://git.kernel.org/bpf/bpf-next/c/abf5971d572c
  - [bpf-next,v3,21/24] bpf, arm64: Multiply by constants with shifts, adds and subs
    https://git.kernel.org/bpf/bpf-next/c/c9c277f5e08f
  - [bpf-next,v3,22/24] selftests/bpf: Let the arm64 private stack check skip the BTI pad
    https://git.kernel.org/bpf/bpf-next/c/75e665d4892b
  - [bpf-next,v3,23/24] selftests/bpf: Test the verifier's division by constants
    https://git.kernel.org/bpf/bpf-next/c/099c2e03f9a0
  - [bpf-next,v3,24/24] selftests/bpf: Extend the JIT instruction tests for arm64 encodings
    https://git.kernel.org/bpf/bpf-next/c/a9fee553d3db

You are awesome, thank you!
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