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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2021-09-19 10:37:00 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-09-19 10:37:00 -0700 |
| commit | 4fef6115903afed5a7f21b387ad132b4c8838bc7 (patch) | |
| tree | 27fee4abae519dcef51c818a9099ebad17b67ecf /arch/alpha | |
| parent | parisc: Declare pci_iounmap() parisc version only when CONFIG_PCI enabled (diff) | |
| download | linux-dev-4fef6115903afed5a7f21b387ad132b4c8838bc7.tar.xz linux-dev-4fef6115903afed5a7f21b387ad132b4c8838bc7.zip | |
alpha: enable GENERIC_PCI_IOMAP unconditionally
With the previous commit (9caea0007601: "parisc: Declare pci_iounmap()
parisc version only when CONFIG_PCI enabled") we can now enable
GENERIC_PCI_IOMAP unconditionally on alpha, and if PCI is not enabled we
will just get the nice empty helper functions that allow mixed-bus
drivers to build.
Example driver: the old 3com/3c59x.c driver works with either the PCI or
the EISA version of the 3x59x card, but wouldn't build in an EISA-only
configuration because of missing pci_iomap() and pci_iounmap() dummy
wrappers.
Most of the other PCI infrastructure just becomes empty wrappers even
without GENERIC_PCI_IOMAP, and it's not obvious that the pci_iomap
functionality shouldn't do the same, but this works.
Cc: Ulrich Teichert <krypton@ulrich-teichert.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/alpha')
| -rw-r--r-- | arch/alpha/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index 11e99358aa58..4e87783c90ad 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -20,7 +20,7 @@ config ALPHA select NEED_SG_DMA_LENGTH select VIRT_TO_BUS select GENERIC_IRQ_PROBE - select GENERIC_PCI_IOMAP if PCI + select GENERIC_PCI_IOMAP select AUTO_IRQ_AFFINITY if SMP select GENERIC_IRQ_SHOW select ARCH_WANT_IPC_PARSE_VERSION |