Re: [PATCH net-next] selftests: drv-net: xdp: Fix register spill error with clang 20

Hello:

This patch was applied to netdev/net-next.git (main) by Jakub Kicinski kuba@kernel.org:

On Wed, 12 Nov 2025 20:31:02 -0800 you wrote:

On clang 20.1.8 the XDP program fails to load with a register spill error. Since hdr_len is a __u32, the compiler decided it only needed the lower 32-bits of ctx->data, which later triggers the register spill verifier error.

Suggested-by: Martin KaFai Lau martin.lau@kernel.org Signed-off-by: Dimitri Daskalakis dimitri.daskalakis1@gmail.com Signed-off-by: Jakub Kicinski kuba@kernel.org

[...]

Here is the summary with links: - [net-next] selftests: drv-net: xdp: Fix register spill error with clang 20 https://git.kernel.org/netdev/net-next/c/e1215d1d38c0

You are awesome, thank you!