linux-kernel - [RFC v2 22/39] parport: PC style parport depends on HAS

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Date:   Fri, 29 Apr 2022 15:50:35 +0200
From:   Niklas Schnelle <schnelle@...ux.ibm.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        linux-pci@...r.kernel.org, Arnd Bergmann <arnd@...nel.org>,
        Sudip Mukherjee <sudipm.mukherjee@...il.com>
Subject: [RFC v2 22/39] parport: PC style parport depends on HAS_IOPORT

In a future patch HAS_IOPORT=n will result in inb()/outb() and friends
not being declared. As PC style parport uses these functions we need to
handle this dependency.

Co-developed-by: Arnd Bergmann <arnd@...nel.org>
Signed-off-by: Niklas Schnelle <schnelle@...ux.ibm.com>
---
 drivers/parport/Kconfig | 4 ++--
 include/linux/parport.h | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/parport/Kconfig b/drivers/parport/Kconfig
index 68a4fe4cd60b..31c8ec2df449 100644
--- a/drivers/parport/Kconfig
+++ b/drivers/parport/Kconfig
@@ -14,7 +14,6 @@ config ARCH_MIGHT_HAVE_PC_PARPORT
 
 menuconfig PARPORT
 	tristate "Parallel port support"
-	depends on HAS_IOMEM
 	help
 	  If you want to use devices connected to your machine's parallel port
 	  (the connector at the computer with 25 holes), e.g. printer, ZIP
@@ -42,7 +41,8 @@ if PARPORT
 
 config PARPORT_PC
 	tristate "PC-style hardware"
-	depends on ARCH_MIGHT_HAVE_PC_PARPORT || (PCI && !S390)
+	depends on ARCH_MIGHT_HAVE_PC_PARPORT
+	depends on HAS_IOPORT
 	help
 	  You should say Y here if you have a PC-style parallel port. All
 	  IBM PC compatible computers and some Alphas have PC-style
diff --git a/include/linux/parport.h b/include/linux/parport.h
index 1c16ffb8b908..04ca5dc597a1 100644
--- a/include/linux/parport.h
+++ b/include/linux/parport.h
@@ -519,7 +519,7 @@ extern int parport_device_proc_register(struct pardevice *device);
 extern int parport_device_proc_unregister(struct pardevice *device);
 
 /* If PC hardware is the only type supported, we can optimise a bit.  */
-#if !defined(CONFIG_PARPORT_NOT_PC)
+#if !defined(CONFIG_PARPORT_NOT_PC) && defined(CONFIG_PARPORT_PC)
 
 #include <linux/parport_pc.h>
 #define parport_write_data(p,x)            parport_pc_write_data(p,x)
-- 
2.32.0