Re: [PATCH bpf-next v7 00/10] bpf: Support aggregate return values up to 16 bytes

Hello:

This series was applied to bpf/bpf-next.git (master)
by Eduard Zingerman <[email protected]>:

On Tue, 18 Aug 2026 22:52:39 -0700 you wrote:
> LLVM 23 can return an __int128, or a struct/union larger than 8 bytes and
> no larger than 16 bytes, in the BPF R0:R2 register pair [1][2]. Before
> that the BPF backend could not return such values at all: a by-value
> aggregate return was rejected at compile time with "aggregate returns are
> not supported", and an __int128 return failed in the backend with "unable
> to allocate function return #1".
> 
> [...]

Here is the summary with links:
  - [bpf-next,v7,01/10] bpf: Factor check_global_ret_scalar_reg() out of the global return check
    https://git.kernel.org/bpf/bpf-next/c/da13c047cda6
  - [bpf-next,v7,02/10] bpf: Add helpers to describe the R0:R2 return register pair
    https://git.kernel.org/bpf/bpf-next/c/cf5b96d95548
  - [bpf-next,v7,03/10] bpf: Wire up JIT support for 16-byte kfunc returns
    https://git.kernel.org/bpf/bpf-next/c/34c3503cb29a
  - [bpf-next,v7,04/10] bpf: Handle R2 as a return register in precision backtracking
    https://git.kernel.org/bpf/bpf-next/c/5bbb242c0859
  - [bpf-next,v7,05/10] bpf: Account R2 of register-pair returns in live register analysis
    https://git.kernel.org/bpf/bpf-next/c/991fb7823106
  - [bpf-next,v7,06/10] bpf: Add verifier support for 16-byte returns in R0:R2
    https://git.kernel.org/bpf/bpf-next/c/0630ad00d96d
  - [bpf-next,v7,07/10] bpf: Enable aggregate return types up to 16 bytes
    https://git.kernel.org/bpf/bpf-next/c/a2e98481a639
  - [bpf-next,v7,08/10] selftests/bpf: Add C tests for 16-byte returns in R0:R2
    https://git.kernel.org/bpf/bpf-next/c/7b7b511e0cf5
  - [bpf-next,v7,09/10] selftests/bpf: Add inline-asm and subprog tests for R0:R2 returns
    https://git.kernel.org/bpf/bpf-next/c/0b9fc795f83f
  - [bpf-next,v7,10/10] Documentation/bpf: Document up to 16-byte kfunc return values in R0:R2
    https://git.kernel.org/bpf/bpf-next/c/d50d9a06c86a

You are awesome, thank you!
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