linux-kernel - Re: [PATCH] swiotlb: Return error from swiotlb_init_with

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Message-ID: <20190201165610.GA7484@lst.de>
Date:   Fri, 1 Feb 2019 17:56:10 +0100
From:   Christoph Hellwig <hch@....de>
To:     Joerg Roedel <joro@...tes.org>
Cc:     Christoph Hellwig <hch@....de>,
        Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Robin Murphy <robin.murphy@....com>,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        Joerg Roedel <jroedel@...e.de>,
        Mike Rapoport <rppt@...ux.vnet.ibm.com>
Subject: Re: [PATCH] swiotlb: Return error from swiotlb_init_with_tbl()

On Fri, Feb 01, 2019 at 05:50:29PM +0100, Joerg Roedel wrote:
> > Mike just killed the _nopanic versions and made the normal ones not
> > panic.
> 
> This sounds like a change to break quite a couple of places in the
> kernel. But okay, it just makes this hunk obsolete.

He also added either explicit panic calls or error handling (panic
in case of swiotlb):

https://patchwork.kernel.org/patch/10766115/