Re: [PATCH] irqchip/gic-v3-its: Align PCI Multi-MSI allocation on their size

2019-01-29 Thread Greg KH
On Mon, Jan 28, 2019 at 06:00:15PM +0100, Ard Biesheuvel wrote: > From: Marc Zyngier > > Commit 8208d1708b88b412ca97f50a6d951242c88cbbac upstream. > > The way we allocate events works fine in most cases, except > when multiple PCI devices share an ITS-visible DevID, and that > one of them is try

[PATCH] irqchip/gic-v3-its: Align PCI Multi-MSI allocation on their size

2019-01-28 Thread Ard Biesheuvel
From: Marc Zyngier Commit 8208d1708b88b412ca97f50a6d951242c88cbbac upstream. The way we allocate events works fine in most cases, except when multiple PCI devices share an ITS-visible DevID, and that one of them is trying to use MultiMSI allocation. In that case, our allocation is not guarantee