[PATCH 0/8] Make several Kconfig options depend on HAS_IOMEM

Baoquan He
2023-07-07T14:00:06Z

In thread of one patch posting, LKP test robot reported some compiling
errors, paste the LKP report link here:

https://lore.kernel.org/all/202306211329.ticOJCSv-lkp@intel.com/T/#u

In the config file, several Kconfig options are like below:
------
'# CONFIG_PCI is not set'
CONFIG_OF_EARLY_FLATTREE=y
CONFIG_DMA_DECLARE_COHERENT=y
------

The reason is (words arranged from Niklas):
===
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.

So make several Kconfig options depend on HAS_IOMEM so that it won't
build in those driver code if PCI is unset.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202306211329.ticOJCSv-lkp@intel.com/

Baoquan He (8):
idmaengine: make FSL_EDMA and INTEL_IDMA64 depends on HAS_IOMEM
char: xillybus: make XILLYBUS_OF depend on HAS_IOMEM
misc: open-dice: make OPEN_DICE depend on HAS_IOMEM
pcmcia : make PCMCIA depend on HAS_IOMEM
net: altera-tse: make ALTERA_TSE depend on HAS_IOMEM
irqchip/al-fic: make AL_FIC depend on HAS_IOMEM
clk: fixed-mmio: make COMMON_CLK_FIXED_MMIO depend on HAS_IOMEM
of: make OF_EARLY_FLATTREE depend on HAS_IOMEM

drivers/char/xillybus/Kconfig | 2 +-
drivers/clk/Kconfig | 1 +
drivers/dma/Kconfig | 2 ++
drivers/irqchip/Kconfig | 1 +
drivers/misc/Kconfig | 1 +
drivers/net/ethernet/altera/Kconfig | 1 +
drivers/of/Kconfig | 2 +-
drivers/pcmcia/Kconfig | 1 +
8 files changed, 9 insertions(+), 2 deletions(-)

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2.34.1