USB: serial: use IS_ENABLED() instead of checking for built-in or module
The IS_ENABLED() macro checks if a Kconfig symbol has been enabled either built-in or as a module, use that macro instead of open coding the same. Using the macro makes the code more readable by helping abstract away some of the Kconfig built-in and module enable details. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Johan Hovold <johan@kernel.org>
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@ -30,12 +30,12 @@
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#include <linux/usb/ezusb.h>
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/* make a simple define to handle if we are compiling keyspan_pda or xircom support */
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#if defined(CONFIG_USB_SERIAL_KEYSPAN_PDA) || defined(CONFIG_USB_SERIAL_KEYSPAN_PDA_MODULE)
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#if IS_ENABLED(CONFIG_USB_SERIAL_KEYSPAN_PDA)
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#define KEYSPAN
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#else
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#undef KEYSPAN
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#endif
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#if defined(CONFIG_USB_SERIAL_XIRCOM) || defined(CONFIG_USB_SERIAL_XIRCOM_MODULE)
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#if IS_ENABLED(CONFIG_USB_SERIAL_XIRCOM)
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#define XIRCOM
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#else
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#undef XIRCOM
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