Re: [PATCH v4 2/5] lib: devres: add pcim_iomap_wc() variants
From: Bjorn Helgaas
Date: Thu Apr 30 2015 - 17:46:51 EST
On Thu, Apr 30, 2015 at 07:27:23PM +0200, Luis R. Rodriguez wrote:
> On Thu, Apr 30, 2015 at 11:26:47AM -0500, Bjorn Helgaas wrote:
> > I don't see users of either pcim_iomap_wc() or pcim_iomap_wc_regions() so
> > far. Did I miss them, or do you just expect them in the near future?
> The later, and also I hate seeing folks later add code under EXPORT_SYMBOL()
> rather than EXPORT_SYMBOL_GPL() so I figure I'd rather do it first. It happened
> recently in my v1 series, someone beat me to a write-combining export symbol
> and changed it to EXPORT_SYMBOL(). Feel free to drop this though but I hope
> no one out there then tries to just add an EXPORT_SYMBOL() later for this...
Why do you want them to be EXPORT_SYMBOL_GPL? I would expect them to be
exported the same way pcim_iomap(), pcim_iomap_regions(), and ioremap_wc()
are exported, i.e., with EXPORT_SYMBOL.
Per Documentation/DocBook/kernel-hacking.tmpl, EXPORT_SYMBOL_GPL "implies
that the function is considered an internal implementation issue, and not
really an interface." I don't think these are internal implementation
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