Re: linux-next: build failure after merge of the clk tree

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Hi all,

On Tue, 2 Jul 2019 11:14:55 +1000 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
>
> On Tue, 2 Jul 2019 10:01:03 +1000 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
> > 
> > We need something like this (untested):  
> 
> simple testing shows build errors ... we need something better.

This at least passes my (few) build tests (this will be in linux-next
today):

From: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Date: Tue, 2 Jul 2019 11:53:07 +1000
Subject: [PATCH] clk: consoldiate the __clk_get_hw() declarations

Without this we were getting errors like:

In file included from drivers/clk/clkdev.c:22:0:
drivers/clk/clk.h:36:23: error: static declaration of '__clk_get_hw' follows non-static declaration
include/linux/clk-provider.h:808:16: note: previous declaration of '__clk_get_hw' was here

Fixes: 59fcdce425b7 ("clk: Remove ifdef for COMMON_CLK in clk-provider.h")
fixes: 73e0e496afda ("clkdev: Always allocate a struct clk and call __clk_get() w/ CCF")
Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
---
 drivers/clk/clk.h             | 4 ----
 drivers/clk/imx/clk-imx6q.c   | 1 +
 drivers/clk/imx/clk-imx6sll.c | 1 +
 drivers/clk/imx/clk-imx6sx.c  | 1 +
 drivers/clk/imx/clk-imx6ul.c  | 1 +
 drivers/clk/imx/clk-imx7d.c   | 1 +
 drivers/clk/imx/clk.c         | 1 +
 include/linux/clk-provider.h  | 7 +++++++
 8 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/drivers/clk/clk.h b/drivers/clk/clk.h
index d8400d623b34..2d801900cad5 100644
--- a/drivers/clk/clk.h
+++ b/drivers/clk/clk.h
@@ -33,10 +33,6 @@ clk_hw_create_clk(struct device *dev, struct clk_hw *hw, const char *dev_id,
 {
 	return (struct clk *)hw;
 }
-static struct clk_hw *__clk_get_hw(struct clk *clk)
-{
-	return (struct clk_hw *)clk;
-}
 static inline void __clk_put(struct clk *clk) { }
 
 #endif
diff --git a/drivers/clk/imx/clk-imx6q.c b/drivers/clk/imx/clk-imx6q.c
index 4e61f5189a1f..466561fb8925 100644
--- a/drivers/clk/imx/clk-imx6q.c
+++ b/drivers/clk/imx/clk-imx6q.c
@@ -14,6 +14,7 @@
 #include <linux/types.h>
 #include <linux/clk.h>
 #include <linux/clkdev.h>
+#include <linux/clk-provider.h>
 #include <linux/err.h>
 #include <linux/io.h>
 #include <linux/of.h>
diff --git a/drivers/clk/imx/clk-imx6sll.c b/drivers/clk/imx/clk-imx6sll.c
index 342dcc58ac16..5f3e92c09a5e 100644
--- a/drivers/clk/imx/clk-imx6sll.c
+++ b/drivers/clk/imx/clk-imx6sll.c
@@ -7,6 +7,7 @@
 #include <dt-bindings/clock/imx6sll-clock.h>
 #include <linux/clk.h>
 #include <linux/clkdev.h>
+#include <linux/clk-provider.h>
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/io.h>
diff --git a/drivers/clk/imx/clk-imx6sx.c b/drivers/clk/imx/clk-imx6sx.c
index fb58479eaa68..2ada63e6ba16 100644
--- a/drivers/clk/imx/clk-imx6sx.c
+++ b/drivers/clk/imx/clk-imx6sx.c
@@ -12,6 +12,7 @@
 #include <dt-bindings/clock/imx6sx-clock.h>
 #include <linux/clk.h>
 #include <linux/clkdev.h>
+#include <linux/clk-provider.h>
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/io.h>
diff --git a/drivers/clk/imx/clk-imx6ul.c b/drivers/clk/imx/clk-imx6ul.c
index 95ca895c8776..d860a244363a 100644
--- a/drivers/clk/imx/clk-imx6ul.c
+++ b/drivers/clk/imx/clk-imx6ul.c
@@ -12,6 +12,7 @@
 #include <dt-bindings/clock/imx6ul-clock.h>
 #include <linux/clk.h>
 #include <linux/clkdev.h>
+#include <linux/clk-provider.h>
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/io.h>
diff --git a/drivers/clk/imx/clk-imx7d.c b/drivers/clk/imx/clk-imx7d.c
index c6d86700a080..c1efb061d237 100644
--- a/drivers/clk/imx/clk-imx7d.c
+++ b/drivers/clk/imx/clk-imx7d.c
@@ -12,6 +12,7 @@
 #include <dt-bindings/clock/imx7d-clock.h>
 #include <linux/clk.h>
 #include <linux/clkdev.h>
+#include <linux/clk-provider.h>
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/io.h>
diff --git a/drivers/clk/imx/clk.c b/drivers/clk/imx/clk.c
index 76457b2bd7f0..f628071f6605 100644
--- a/drivers/clk/imx/clk.c
+++ b/drivers/clk/imx/clk.c
@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <linux/clk.h>
+#include <linux/clk-provider.h>
 #include <linux/err.h>
 #include <linux/io.h>
 #include <linux/of.h>
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 0fbf3ccad849..2ae7604783dd 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -805,7 +805,14 @@ void devm_clk_hw_unregister(struct device *dev, struct clk_hw *hw);
 /* helper functions */
 const char *__clk_get_name(const struct clk *clk);
 const char *clk_hw_get_name(const struct clk_hw *hw);
+#ifdef CONFIG_COMMON_CLK
 struct clk_hw *__clk_get_hw(struct clk *clk);
+#else
+static inline struct clk_hw *__clk_get_hw(struct clk *clk)
+{
+	return (struct clk_hw *)clk;
+}
+#endif
 unsigned int clk_hw_get_num_parents(const struct clk_hw *hw);
 struct clk_hw *clk_hw_get_parent(const struct clk_hw *hw);
 struct clk_hw *clk_hw_get_parent_by_index(const struct clk_hw *hw,
-- 
2.20.1

-- 
Cheers,
Stephen Rothwell

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