From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Subject: Re: [PATCH] swiotlb: clear io_tlb_start and io_tlb_end in swiotlb_exit
Date: Mon, 14 Jan 2019 21:33:23 +0100
Message-ID: <20190114203323.GA11412@lst.de>
References: <20190114201408.12270-1-hch@lst.de>
	<20190114202513.GG32038@char.us.oracle.com>
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To: Konrad Rzeszutek Wilk <konrad.wilk-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
Cc: Sibren Vasse <sibren-DLwv2wemLo05ZU0pBKPMFg@public.gmane.org>, michel-otUistvHUpPR7s880joybQ@public.gmane.org, freedesktop-DLwv2wemLo05ZU0pBKPMFg@public.gmane.org, Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
List-Id: iommu@lists.linux-foundation.org

On Mon, Jan 14, 2019 at 03:25:13PM -0500, Konrad Rzeszutek Wilk wrote:
> On Mon, Jan 14, 2019 at 09:14:08PM +0100, Christoph Hellwig wrote:
> > Otherwise is_swiotlb_buffer will return false positives when
> > we first initialize a swiotlb buffer, but then free it because
> > we have an IOMMU available.
> > 
> > Fixes: 55897af63091 ("dma-direct: merge swiotlb_dma_ops into the dma_direct code")
> > Reported-by: Sibren Vasse <sibren-DLwv2wemLo05ZU0pBKPMFg@public.gmane.org>
> > Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
> > Tested-by: Sibren Vasse <sibren-DLwv2wemLo05ZU0pBKPMFg@public.gmane.org>
> 
> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>

Do you want to send this to Linus, or do you want me to pick it up
through the dma-mapping tree?