[PATCH bpf v2] tools: Override makefile ARCH variable if defined, but empty

[patchwork-bot+netdevbpf at kernel.org]

Hello:

This patch was applied to bpf/bpf.git (master)
by Daniel Borkmann <daniel at iogearbox.net>:

On Wed, 27 Nov 2024 11:17:46 +0100 you wrote:
> From: Björn Töpel <bjorn at rivosinc.com>
> 
> There are a number of tools (bpftool, selftests), that require a
> "bootstrap" build. Here, a bootstrap build is a build host variant of
> a target. E.g., assume that you're performing a bpftool cross-build on
> x86 to riscv, a bootstrap build would then be an x86 variant of
> bpftool. The typical way to perform the host build variant, is to pass
> "ARCH=" in a sub-make. However, if a variable has been set with a
> command argument, then ordinary assignments in the makefile are
> ignored.
> 
> [...]

Here is the summary with links:
  - [bpf,v2] tools: Override makefile ARCH variable if defined, but empty
    https://git.kernel.org/bpf/bpf/c/537a2525eaf7

You are awesome, thank you!
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