[PATCH v2] riscv, bpf: Adapt bpf trampoline to optimized riscv ftrace framework

[patchwork-bot+netdevbpf at kernel.org]

Hello:

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

On Fri, 21 Jul 2023 18:06:27 +0800 you wrote:
> From: Pu Lehui <pulehui at huawei.com>
> 
> Commit 6724a76cff85 ("riscv: ftrace: Reduce the detour code size to
> half") optimizes the detour code size of kernel functions to half with
> T0 register and the upcoming DYNAMIC_FTRACE_WITH_DIRECT_CALLS of riscv
> is based on this optimization, we need to adapt riscv bpf trampoline
> based on this. One thing to do is to reduce detour code size of bpf
> programs, and the second is to deal with the return address after the
> execution of bpf trampoline. Meanwhile, we need to construct the frame
> of parent function, otherwise we will miss one layer when unwinding.
> The related tests have passed.
> 
> [...]

Here is the summary with links:
  - [v2] riscv, bpf: Adapt bpf trampoline to optimized riscv ftrace framework
    https://git.kernel.org/bpf/bpf-next/c/25ad10658dc1

You are awesome, thank you!
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