From b5c7d0d0f7d4a30ae96c1350df677cb849060b7c Mon Sep 17 00:00:00 2001 From: =?utf8?q?Toke=20H=C3=B8iland-J=C3=B8rgensen?= Date: Thu, 19 Dec 2019 10:02:36 +0100 Subject: [PATCH] libbpf: Fix printing of ulimit value MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Naresh pointed out that libbpf builds fail on 32-bit architectures because rlimit.rlim_cur is defined as 'unsigned long long' on those architectures. Fix this by using %zu in printf and casting to size_t. Fixes: dc3a2d254782 ("libbpf: Print hint about ulimit when getting permission denied error") Reported-by: Naresh Kamboju Signed-off-by: Toke Høiland-Jørgensen Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20191219090236.905059-1-toke@redhat.com --- tools/lib/bpf/libbpf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index 6340b81b555b..febbaac3daf4 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -117,7 +117,7 @@ static void pr_perm_msg(int err) return; if (limit.rlim_cur < 1024) - snprintf(buf, sizeof(buf), "%lu bytes", limit.rlim_cur); + snprintf(buf, sizeof(buf), "%zu bytes", (size_t)limit.rlim_cur); else if (limit.rlim_cur < 1024*1024) snprintf(buf, sizeof(buf), "%.1f KiB", (double)limit.rlim_cur / 1024); else -- 2.20.1