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Message-ID: <5117a5ab.5090...@nvidia.com>
Date: Sun, 10 Feb 2013 22:50:35 +0900
From: Alex Courbot <acour...@nvidia.com>
Organization: NVIDIA
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Subject: Re: [grant:gpio/next 10/16] gpiolib.c:undefined reference to
`gpiod_unexport'
References: <51166e1c.nrfqn8vgi14zunwf%fengguang...@intel.com>
<cacxge6taex7o9dxntxtwkwzzhmetekas+7uy4j-dtx_2v58...@mail.gmail.com>
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On 02/10/2013 01:34 AM, Grant Likely wrote:
> Alex, this is broken when the sysfs interface isn't enabled. Can you
> send a fixup patch?
>
> g.
>
> On Sat, Feb 9, 2013 at 3:41 PM, kbuild test robot
> <fengguang...@intel.com> wrote:
>> tree: git://git.secretlab.ca/git/linux-2.6.git gpio/next
>> head: 8a307b35962e42de0f998c6029e8851c61eadb4e
>> commit: 5bb47609e8167d733786cb781ada29536385635c [10/16] gpiolib: use
>> descriptors internally
>> config: i386-randconfig-b040 (attached as .config)
>>
>> All error/warnings:
>>
>> drivers/built-in.o: In function `gpiod_free':
>>>> gpiolib.c:(.text+0xda3): undefined reference to `gpiod_unexport'
>> drivers/built-in.o: In function `gpio_request_one':
>>>> (.text+0x147f): undefined reference to `gpiod_export'
Oops, apologies. Here follows the fix. Please meld it into the culprit
patch to fix all warnings and errors when sysfs is not compiled in.
Thanks,
Alex.
---
drivers/gpio/gpiolib.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index e6e597c..b5a71c5 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1085,6 +1085,27 @@ static inline void gpiochip_unexport(struct
gpio_chip *chip)
{
}
+static inline int gpiod_export(struct gpio_desc *desc,
+ bool direction_may_change)
+{
+ return -ENOSYS;
+}
+
+static inline int gpiod_export_link(struct device *dev, const char *name,
+ struct gpio_desc *desc)
+{
+ return -ENOSYS;
+}
+
+static inline int gpiod_sysfs_set_active_low(struct gpio_desc *desc,
int value)
+{
+ return -ENOSYS;
+}
+
+static inline void gpiod_unexport(struct gpio_desc *desc)
+{
+}
+
#endif /* CONFIG_GPIO_SYSFS */
/*
--
1.8.1.3
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