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SubjectRe: [PATCH v8 1/2] iommu - Enable debugfs exposure of IOMMU driver internals
On Tue, Jun 05, 2018 at 12:01:41PM -0500, Gary R Hook wrote:
> > > +/**
> > > + * iommu_debugfs_new_driver_dir - create a vendor directory under debugfs/iommu
> > > + * @vendor: name of the vendor-specific subdirectory to create
> > > + *
> > > + * This function is called by an IOMMU driver to create the top-level debugfs
> > > + * directory for that driver.
> > > + *
> > > + * Return: upon success, a pointer to the dentry for the new directory.
> > > + * NULL in case of failure.
> > > + */
> > > +struct dentry *iommu_debugfs_new_driver_dir(const char *vendor)
> > > +{
> > > + struct dentry *d_new;
> > > +
> > > + d_new = debugfs_create_dir(vendor, iommu_debugfs_dir);
> > > +
> > > + return d_new;
> > > +}
> > > +EXPORT_SYMBOL_GPL(iommu_debugfs_new_driver_dir);
> >
> > Why are you wrapping a debugfs call? Why not just export
> > iommu_debugfs_dir instead?
>
> It was a choice, as I stated in my other post. It is not a requirement.
> If you resolutely reject this approach, that's fine. I'll change it, no
> worries.

Either is fine, but if it stays, it should stay a single line function
:)

thanks,

greg k-h

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