Hello: This patch was applied to bpf/bpf-next.git (master) by Daniel Borkmann <daniel@xxxxxxxxxxxxx>: On Thu, 3 Mar 2022 08:59:21 +0800 you wrote: > The page_cnt parameter is used to specify the number of memory pages > allocated for each per-CPU buffer, it must be non-zero and a power of 2. > > Currently, the __perf_buffer__new() function attempts to validate that > the page_cnt is a power of 2 but forgets checking for the case where > page_cnt is zero, we can fix it by replacing 'page_cnt & (page_cnt - 1)' > with 'page_cnt == 0 || (page_cnt & (page_cnt - 1))'. > > [...] Here is the summary with links: - [bpf-next,v2] libbpf: Add a check to ensure that page_cnt is non-zero https://git.kernel.org/bpf/bpf-next/c/41332d6e3a43 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html