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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>
Subject: [PATCH 4.4 122/193] tty: cyclades: cyz_interrupt is only used for PCI
Date:   Fri, 23 Feb 2018 19:25:55 +0100
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4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Arnd Bergmann <arnd@arndb.de>

commit 05ead49691d245f67bdd1b30cab5d9af522ac884 upstream.

When CONFIG_PCI is not set, enabling CONFIG_CYZ_INTR has no
practical effect other than generating a warning about an
unused function:

drivers/tty/cyclades.c:1184:20: warning: 'cyz_interrupt' defined but not used [-Wunused-function]
 static irqreturn_t cyz_interrupt(int irq, void *dev_id)

This adds a dependency to avoid that warning.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/tty/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/tty/Kconfig
+++ b/drivers/tty/Kconfig
@@ -226,7 +226,7 @@ config CYCLADES
 
 config CYZ_INTR
 	bool "Cyclades-Z interrupt mode operation"
-	depends on CYCLADES
+	depends on CYCLADES && PCI
 	help
 	  The Cyclades-Z family of multiport cards allows 2 (two) driver op
 	  modes: polling and interrupt. In polling mode, the driver will check