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authorNiklas Schnelle <schnelle@linux.ibm.com>2023-03-23 17:33:52 +0100
committerArnd Bergmann <arnd@arndb.de>2023-04-05 22:15:19 +0200
commitfcbfe8121a45152a3cfbe1c28c96a3b611b7347d (patch)
tree3f1e4c0bd1979e56e9438396bea7686466c59dfe /drivers/parisc
parentfe15c26ee26efa11741a7b632e9f23b01aca4cc6 (diff)
Kconfig: introduce HAS_IOPORT option and select it as necessary
We introduce a new HAS_IOPORT Kconfig option to indicate support for I/O Port access. In a future patch HAS_IOPORT=n will disable compilation of the I/O accessor functions inb()/outb() and friends on architectures which can not meaningfully support legacy I/O spaces such as s390. The following architectures do not select HAS_IOPORT: * ARC * C-SKY * Hexagon * Nios II * OpenRISC * s390 * User-Mode Linux * Xtensa All other architectures select HAS_IOPORT at least conditionally. The "depends on" relations on HAS_IOPORT in drivers as well as ifdefs for HAS_IOPORT specific sections will be added in subsequent patches on a per subsystem basis. Co-developed-by: Arnd Bergmann <arnd@kernel.org> Signed-off-by: Arnd Bergmann <arnd@kernel.org> Acked-by: Johannes Berg <johannes@sipsolutions.net> # for ARCH=um Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/parisc')
-rw-r--r--drivers/parisc/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/parisc/Kconfig b/drivers/parisc/Kconfig
index 9eb2c1b5de7d..2fc3222d2634 100644
--- a/drivers/parisc/Kconfig
+++ b/drivers/parisc/Kconfig
@@ -4,6 +4,7 @@ menu "Bus options (PCI, PCMCIA, EISA, GSC, ISA)"
config GSC
bool "VSC/GSC/HSC bus support"
select HAVE_EISA
+ select HAS_IOPORT
default y
help
The VSC, GSC and HSC busses were used from the earliest 700-series