[PATCH] drivers/of: Export phandle iterators

[PATCH] drivers/of: Export phandle iterators

[Robin Murphy]

Modular drivers may want to use of_for_each_phandle() - export its
constituent functions.

CC: Rob Herring <robh+dt@kernel.org>
CC: Frank Rowand <frowand.list@gmail.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
---
 drivers/of/base.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/of/base.c b/drivers/of/base.c
index a0bccb54a9bd..92e35fe0189a 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -1563,6 +1563,7 @@ int of_phandle_iterator_init(struct of_phandle_iterator *it,
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(of_phandle_iterator_init);
 
 int of_phandle_iterator_next(struct of_phandle_iterator *it)
 {
@@ -1632,6 +1633,7 @@ int of_phandle_iterator_next(struct of_phandle_iterator *it)
 
 	return -EINVAL;
 }
+EXPORT_SYMBOL_GPL(of_phandle_iterator_next);
 
 int of_phandle_iterator_args(struct of_phandle_iterator *it,
 			     uint32_t *args,
@@ -1649,6 +1651,7 @@ int of_phandle_iterator_args(struct of_phandle_iterator *it,
 
 	return count;
 }
+EXPORT_SYMBOL_GPL(of_phandle_iterator_args);
 
 static int __of_parse_phandle_with_args(const struct device_node *np,
 					const char *list_name,
-- 
2.10.2.dirty

Re: [PATCH] drivers/of: Export phandle iterators

[Rob Herring]

On Wed, Nov 23, 2016 at 1:06 PM, Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org> wrote:
> Modular drivers may want to use of_for_each_phandle() - export its
> constituent functions.

Do you have a user?

Rob
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Re: [PATCH] drivers/of: Export phandle iterators

[Robin Murphy]

Hi Rob,

On 23/11/16 21:49, Rob Herring wrote:
> On Wed, Nov 23, 2016 at 1:06 PM, Robin Murphy <robin.murphy@arm.com> wrote:
>> Modular drivers may want to use of_for_each_phandle() - export its
>> constituent functions.
> 
> Do you have a user?

I've been experimenting with modular IOMMU drivers on top of the
probe-deferral stuff[1], and the ARM SMMU driver in particular demands a
whole pile of exports. I thought I'd throw this one out now since nearly
all the other of_* functions are exported already, but I'm quite happy
to sit on it if you'd prefer to wait for a concrete in-tree need (it'll
be a while yet).

Robin.

[1]:http://www.linux-arm.org/git?p=linux-rm.git;a=shortlog;h=refs/heads/iommu/defer

Re: [PATCH] drivers/of: Export phandle iterators

[Rob Herring]

On Thu, Nov 24, 2016 at 6:33 AM, Robin Murphy <robin.murphy@arm.com> wrote:
> Hi Rob,
>
> On 23/11/16 21:49, Rob Herring wrote:
>> On Wed, Nov 23, 2016 at 1:06 PM, Robin Murphy <robin.murphy@arm.com> wrote:
>>> Modular drivers may want to use of_for_each_phandle() - export its
>>> constituent functions.
>>
>> Do you have a user?
>
> I've been experimenting with modular IOMMU drivers on top of the
> probe-deferral stuff[1], and the ARM SMMU driver in particular demands a
> whole pile of exports. I thought I'd throw this one out now since nearly
> all the other of_* functions are exported already, but I'm quite happy
> to sit on it if you'd prefer to wait for a concrete in-tree need (it'll
> be a while yet).
>
> Robin.
>
> [1]:http://www.linux-arm.org/git?p=linux-rm.git;a=shortlog;h=refs/heads/iommu/defer