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Re: [PATCH] gpio: xgene: mark PM functions as __maybe_unused

From Arnd Bergmann <arnd@arndb.de>
Newsgroups linux.kernel
Subject Re: [PATCH] gpio: xgene: mark PM functions as __maybe_unused
Date 2017-02-15 22:40 +0100
Message-ID <tbfsS-5g5-9@gated-at.bofh.it> (permalink)
References <taSPF-72f-23@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Tue, Feb 14, 2017 at 10:20 PM, Arnd Bergmann <arnd@arndb.de> wrote:
> When CONFIG_PM_SLEEP is disabled, we get a warning about unused functions:
>
> drivers/gpio/gpio-xgene.c:155:12: warning: 'xgene_gpio_resume' defined but not used [-Wunused-function]
>  static int xgene_gpio_resume(struct device *dev)
>             ^~~~~~~~~~~~~~~~~
> drivers/gpio/gpio-xgene.c:142:12: warning: 'xgene_gpio_suspend' defined but not used [-Wunused-function]
>  static int xgene_gpio_suspend(struct device *dev)
>
> The warnings are harmless and can be avoided by simplifying the code and marking
> the functions as __maybe_unused.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

I ran into a problem with this version, please either add this trivial fixup:

diff --git a/drivers/gpio/gpio-xgene.c b/drivers/gpio/gpio-xgene.c
index 1fd62bef562b..f1c6ec17b90a 100644
--- a/drivers/gpio/gpio-xgene.c
+++ b/drivers/gpio/gpio-xgene.c
@@ -42,9 +42,7 @@ struct xgene_gpio {
  struct gpio_chip chip;
  void __iomem *base;
  spinlock_t lock;
-#ifdef CONFIG_PM
  u32 set_dr_val[XGENE_MAX_GPIO_BANKS];
-#endif
 };

 static int xgene_gpio_get(struct gpio_chip *gc, unsigned int offset)

or wait for a new version from me.

     Arnd

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[PATCH] gpio: xgene: mark PM functions as __maybe_unused Arnd Bergmann <arnd@arndb.de> - 2017-02-14 22:30 +0100
  Re: [PATCH] gpio: xgene: mark PM functions as __maybe_unused Arnd Bergmann <arnd@arndb.de> - 2017-02-15 22:40 +0100

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