Make dev_dbg() "use" it's 'dev' argument even when not debugging.

This avoids warnings about unused variables.

Make dev_dbg() "use" it's 'dev' argument even when not debugging.
This avoids warnings about unused variables.
0fed9584 · Linus Torvalds · c16c278b · 0fed9584
Commit 0fed9584 authored May 14, 2004 by Linus Torvalds
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include/linux/device.h include/linux/device.h +1 -1

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--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -406,7 +406,7 @@ extern void firmware_unregister(struct subsystem *);
 #define dev_dbg(dev, format, arg...)		\
 	dev_printk(KERN_DEBUG , dev , format , ## arg)
 #else
-#define dev_dbg(dev, format, arg...) do {} while (0)
+#define dev_dbg(dev, format, arg...) do { (void)(dev); } while (0)
 #endif
 #define dev_err(dev, format, arg...)		\