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From: Corentin Labbe <clabbe.montjoie@gmail.com>
To: gregkh@linuxfoundation.org, rafael@kernel.org, hch@lst.de,
	m.szyprowski@samsung.com, robin.murphy@arm.com
Cc: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org
Subject: dma-api debugfs directory is not created since debugfs is not initialized
Date: Tue, 27 Apr 2021 13:34:27 +0200	[thread overview]
Message-ID: <YIf2w1navFNeYjMS@Red> (raw)

Hello

I try to debug some DMA problem on next-20210427, and so I have enabled CONFIG_DMA_API_DEBUG=y.
But the dma-api directory does show up in debugfs, but lot of other directory exists in it.

After debugging it seems due to commit 56348560d495 ("debugfs: do not attempt to create a new file before the filesystem is initalized")
Reverting the commit permit to "dma-api" debugfs to be found. (but seems not the right way to fix it).

Regards
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WARNING: multiple messages have this Message-ID (diff)
From: Corentin Labbe <clabbe.montjoie@gmail.com>
To: gregkh@linuxfoundation.org, rafael@kernel.org, hch@lst.de,
	m.szyprowski@samsung.com, robin.murphy@arm.com
Cc: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org
Subject: dma-api debugfs directory is not created since debugfs is not initialized
Date: Tue, 27 Apr 2021 13:34:27 +0200	[thread overview]
Message-ID: <YIf2w1navFNeYjMS@Red> (raw)

Hello

I try to debug some DMA problem on next-20210427, and so I have enabled CONFIG_DMA_API_DEBUG=y.
But the dma-api directory does show up in debugfs, but lot of other directory exists in it.

After debugging it seems due to commit 56348560d495 ("debugfs: do not attempt to create a new file before the filesystem is initalized")
Reverting the commit permit to "dma-api" debugfs to be found. (but seems not the right way to fix it).

Regards

             reply	other threads:[~2021-04-27 11:34 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-27 11:34 Corentin Labbe [this message]
2021-04-27 11:34 ` dma-api debugfs directory is not created since debugfs is not initialized Corentin Labbe
2021-04-27 11:39 ` Greg KH
2021-04-27 11:39   ` Greg KH
2021-04-27 12:32   ` Robin Murphy
2021-04-27 12:32     ` Robin Murphy
2021-04-27 12:41     ` Greg KH
2021-04-27 12:41       ` Greg KH
2021-04-27 15:36   ` Corentin Labbe
2021-04-27 15:36     ` Corentin Labbe

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