linux-kernel - [PATCH] base: soc: Export soc_device_to

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Date:   Mon, 11 Nov 2019 05:56:09 +0100
From:   Andreas Färber <afaerber@...e.de>
To:     linux-realtek-soc@...ts.infradead.org
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Andreas Färber <afaerber@...e.de>,
        Lee Jones <lee.jones@...aro.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>
Subject: [PATCH] base: soc: Export soc_device_to_device() helper

Use of soc_device_to_device() in driver modules causes a build failure.
Given that the helper is nicely documented in include/linux/sys_soc.h,
let's export it as GPL symbol.

struct soc_device is local to soc.c, so it can't be inlined into the
header or into driver code.

This still handles only the case that CONFIG_SOC_BUS is enabled.
Same as commit da65a1589dacc7ec44ea0557a14d70a39d991f32 ("base: soc:
Provide a dummy implementation of soc_device_match()") we'd need to
provide a dummy inline implementation to cope with COMPILE_TEST, too.

Reported-by: kbuild test robot <lkp@...el.com>
Cc: Lee Jones <lee.jones@...aro.org>
Cc: Bjorn Andersson <bjorn.andersson@...aro.org>
Cc: Geert Uytterhoeven <geert+renesas@...der.be>
Signed-off-by: Andreas Färber <afaerber@...e.de>
---
 drivers/base/soc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/base/soc.c b/drivers/base/soc.c
index 4af11a423475..72848587cd51 100644
--- a/drivers/base/soc.c
+++ b/drivers/base/soc.c
@@ -41,6 +41,7 @@ struct device *soc_device_to_device(struct soc_device *soc_dev)
 {
 	return &soc_dev->dev;
 }
+EXPORT_SYMBOL_GPL(soc_device_to_device);
 
 static umode_t soc_attribute_mode(struct kobject *kobj,
 				struct attribute *attr,
-- 
2.16.4