[PATCH 1/2] pcmcia : make PCMCIA depend on HAS_IOMEM

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On s390 systems (aka mainframes), it has classic channel devices for
networking and permanent storage that are currently even more common
than PCI devices. Hence it could have a fully functional s390 kernel
with CONFIG_PCI=n, then the relevant iomem mapping functions
[including ioremap(), devm_ioremap(), etc.] are not available.

Here let depend PCMCIA on HAS_IOMEM so that it won't be built to
cause below compiling error if PCI is unset.

-------------------------------------------------------
ld: drivers/pcmcia/cistpl.o: in function `set_cis_map':
cistpl.c:(.text+0x1202): undefined reference to `ioremap'
ld: cistpl.c:(.text+0x13b0): undefined reference to `iounmap'
ld: cistpl.c:(.text+0x14a6): undefined reference to `iounmap'
ld: cistpl.c:(.text+0x1544): undefined reference to `ioremap'
ld: drivers/pcmcia/cistpl.o: in function `release_cis_mem':
cistpl.c:(.text+0x3f14): undefined reference to `iounmap'

Link: https://lore.kernel.org/all/Y0TcaZD4nB1w+mAQ@MiWiFi-R3L-srv/T/#u
Signed-off-by: Baoquan He <bhe@xxxxxxxxxx>
Cc: Dominik Brodowski <linux@xxxxxxxxxxxxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
Cc: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>
---
 drivers/pcmcia/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig
index 1525023e49b6..7c412bbe8bbe 100644
--- a/drivers/pcmcia/Kconfig
+++ b/drivers/pcmcia/Kconfig
@@ -20,6 +20,7 @@ if PCCARD
 
 config PCMCIA
 	tristate "16-bit PCMCIA support"
+	depends on HAS_IOMEM
 	select CRC32
 	default y
 	help
-- 
2.34.1





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