From: Christoph Hellwig <hch@xxxxxx> Date: Tue, 22 Aug 2017 18:39:16 +0200 > On Tue, Aug 22, 2017 at 09:31:39AM -0700, David Miller wrote: >> > I fear my commit message (but not the code) might be wrong. >> > irq_create_affinity_masks can return NULL any time we don't have any >> > affinity masks. I've already had a discussion about this elsewhere >> > with Bjorn, and I suspect we need to kill the warning or move it >> > to irq_create_affinity_masks only for genuine failure cases. >> >> This is a rather large machine with 64 or more cpus and several NUMA >> nodes. Why wouldn't there be any affinity masks available? > > The drivers only asked for two MSI-X vectors, and marked bost of them > as pre-vectors that should not be spread. So there is no actual > vector left that we want to actually spread. Ok, now it makes more sense, and yes the warning should be removed.
