ringbuf_process_ring() return int64_t, while ring__consume_n() assigns it to int. It's highly unlikely, but possible for ringbuf_process_ring() to return value larger than INT_MAX, so use int64_t. ring__consume_n() does check INT_MAX before returning int result to the user. Fixes: 4d22ea94ea33 ("libbpf: Add ring__consume_n / ring_buffer__consume_n") Signed-off-by: Andrii Nakryiko <andrii@xxxxxxxxxx> --- tools/lib/bpf/ringbuf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/lib/bpf/ringbuf.c b/tools/lib/bpf/ringbuf.c index 99e44cf02321..37c5a2d86a78 100644 --- a/tools/lib/bpf/ringbuf.c +++ b/tools/lib/bpf/ringbuf.c @@ -405,7 +405,7 @@ int ring__map_fd(const struct ring *r) int ring__consume_n(struct ring *r, size_t n) { - int res; + int64_t res; res = ringbuf_process_ring(r, n); if (res < 0) -- 2.43.0