linux-kernel - Re: linux-next: build warning after merge of the iommufd tree

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Message-ID: <42362.1742957009@turing-police>
Date: Tue, 25 Mar 2025 22:43:29 -0400
From: "Valdis Klētnieks" <valdis.kletnieks@...edu>
To: Jason Gunthorpe <jgg@...dia.com>
cc: Stephen Rothwell <sfr@...b.auug.org.au>,
    Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
    Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: build warning after merge of the iommufd tree

On Fri, 21 Mar 2025 08:39:32 -0300, Jason Gunthorpe said:
> On Fri, Mar 21, 2025 at 07:36:00PM +1100, Stephen Rothwell wrote:

> > vmlinux.o: warning: objtool: iommu_dma_get_msi_page() falls through to next function __iommu_dma_unmap()
> > 
> > I have no idea where that came from.
>
> Me too, I've been ignoring weird objtool things because I don't know
> what to do with them :\

It's particularly annoying if you turned on the recently added CONFIG_OBJTOOL_WERROR=y

........