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Groups > linux.kernel > #1646861

[PATCH] platform/x86: ideapad-laptop: hide unused 'touchpad_store'

From Arnd Bergmann <arnd@arndb.de>
Newsgroups linux.kernel
Subject [PATCH] platform/x86: ideapad-laptop: hide unused 'touchpad_store'
Date 2017-05-22 15:10 +0200
Message-ID <tJVfX-68S-7@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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A readonly sysfs property must not have a 'store' function:

drivers/platform/x86/ideapad-laptop.c:438:16: error: 'touchpad_store' defined but not used [-Werror=unused-function]

We can either comment it out or remove the function entirely,
without a good reason one or or another I picked the second option.

Fixes: 7f363145992c ("platform/x86: ideapad-laptop: Switch touchpad attribute to be RO")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/platform/x86/ideapad-laptop.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index f7a4608cc60b..c4c7ae3179c0 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -435,6 +435,8 @@ static ssize_t touchpad_show(struct device *dev,
 	return sprintf(buf, "%lu\n", result);
 }
 
+#if 0
+/* Switch to RO for now: It might be revisited in the future */
 static ssize_t touchpad_store(struct device *dev,
 			      struct device_attribute *attr,
 			      const char *buf, size_t count)
@@ -453,7 +455,7 @@ static ssize_t touchpad_store(struct device *dev,
 	return count;
 }
 
-/* Switch to RO for now: It might be revisited in the future */
+#endif
 static DEVICE_ATTR_RO(touchpad);
 
 static struct attribute *ideapad_attributes[] = {
-- 
2.9.0

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[PATCH] platform/x86: ideapad-laptop: hide unused 'touchpad_store' Arnd Bergmann <arnd@arndb.de> - 2017-05-22 15:10 +0200
  Re: [PATCH] platform/x86: ideapad-laptop: hide unused 'touchpad_store' Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-05-22 19:10 +0200
    Re: [PATCH] platform/x86: ideapad-laptop: hide unused 'touchpad_store' Arnd Bergmann <arnd@arndb.de> - 2017-05-22 22:40 +0200
      Re: [PATCH] platform/x86: ideapad-laptop: hide unused 'touchpad_store' Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-05-23 18:40 +0200

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