linux-kernel - Re: [PATCH v3 2/2] iommu/amd: Add basic debugfs infrastructure for AMD IOMMU

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Message-ID: <1524082659.2747.37.camel@intel.com>
Date:   Wed, 18 Apr 2018 20:16:27 +0000
From:   "Mehta, Sohil" <sohil.mehta@...el.com>
To:     "shunyong.yang@...-semitech.com" <shunyong.yang@...-semitech.com>,
        "gary.hook@....com" <gary.hook@....com>,
        "iommu@...ts.linux-foundation.org" <iommu@...ts.linux-foundation.org>,
        "ghook@....com" <ghook@....com>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 2/2] iommu/amd: Add basic debugfs infrastructure for
 AMD IOMMU

On Wed, 2018-04-18 at 08:31 +0000, Yang, Shunyong wrote:
> Maybe the original design is to call debugfs_initialized() before
> calling debugfs_create_xxx()?

I am unaware of the original design. Someone else would probably have
more context. However, looking at other places in the kernel where
debugfs_create_xx() is used, the common convention seems to be to avoid
calling debugfs_initialized().

 Sohil