linux-kernel - Re: [PATCH 1/4] power_supply: Add of_node

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Message-ID: <20130629012255.GA20924@lizard>
Date:	Fri, 28 Jun 2013 18:22:55 -0700
From:	Anton Vorontsov <anton@...msg.org>
To:	Rhyland Klein <rklein@...dia.com>
Cc:	Stephen Warren <swarren@...dotorg.org>,
	linux-arm-kernel@...ts.infradead.org, linux-tegra@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/4] power_supply: Add of_node_put to fix refcount

On Mon, Jun 10, 2013 at 05:26:39PM -0400, Rhyland Klein wrote:
> of_parse_phandle increments the refcount for a dt node before returning
> it. Add of_node_put where needed to properly decrement the refcount
> when we are done using a given node.
> 
> Signed-off-by: Rhyland Klein <rklein@...dia.com>
> ---

With CONFIG_OF=n I got this:

  CC      drivers/power/sbs-battery.o
  drivers/power/sbs-battery.c: In function ‘sbs_probe’:
  drivers/power/sbs-battery.c:707:20: error: ‘struct power_supply’ has no
  member named ‘of_node’
  make[1]: *** [drivers/power/sbs-battery.o] Error 1

I fixed this by the patch below and applied your 1-3 series.

Thanks!

Anton

commit b50df95c8f0703c95625181d2eaf53855c5ebee5
Author: Anton Vorontsov <anton@...msg.org>
Date:   Fri Jun 28 18:17:22 2013 -0700

    power_supply: Move of_node out of the #ifdef CONFIG_OF
    
    Similar to linux/device.h, move of_node struct member out of the #ifdef
    CONFIG_OF so that the drivers won't have to mess with #ifdefs in .c files.
    
    Signed-off-by: Anton Vorontsov <anton@...msg.org>

diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index 3828cef..804b906 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -162,6 +162,8 @@ union power_supply_propval {
 	const char *strval;
 };
 
+struct device_node;
+
 struct power_supply {
 	const char *name;
 	enum power_supply_type type;
@@ -173,9 +175,7 @@ struct power_supply {
 
 	char **supplied_from;
 	size_t num_supplies;
-#ifdef CONFIG_OF
 	struct device_node *of_node;
-#endif
 
 	int (*get_property)(struct power_supply *psy,
 			    enum power_supply_property psp,
--
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