Hello: This patch was applied to bpf/bpf.git (refs/heads/master): On Wed, 5 May 2021 15:25:29 +0200 you wrote: > We can't currently allow to attach functions with variable arguments. > The problem is that we should save all the registers for arguments, > which is probably doable, but if caller uses more than 6 arguments, > we need stack data, which will be wrong, because of the extra stack > frame we do in bpf trampoline, so we could crash. > > Also currently there's malformed trampoline code generated for such > functions at the moment as described in: > https://lore.kernel.org/bpf/20210429212834.82621-1-jolsa@xxxxxxxxxx/ > > [...] Here is the summary with links: - bpf: Forbid trampoline attach for functions with variable arguments https://git.kernel.org/bpf/bpf/c/0a1a616720d9 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html
