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MIPS: Octeon: drop dependency on CONFIG_HOLES_IN_ZONE

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CAVIUM_OCTEON_SOC configuration selects HOLES_IN_ZONE option to cope with
memory crashes that were happening in 2011.

This option effectively aliases pfn_valid_within() to pfn_valid() when
enabled and hardwires it to 1 when disabled. The check for
pfn_valid_within() is only relevant in case the memory map may have holes
or undefined struct page instances inside MAX_ORDER chunks.

Since 2011 memory management initialization in general and memory map
initialization particularly became much more robust so the check for
pfn_valid_within() is not required on Octeon even despite its, hmm, unusual
memory setup.

Remove the selection of HOLES_IN_ZONE by CAVIUM_OCTEON_SOC and drop the
HOLES_IN_ZONE configuration option entirely as Octeon was the only MIPS
platform to use it.

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Mike Rapoport 2021-04-18 12:35:12 +03:00 committed by Thomas Bogendoerfer
parent 6efb943b86
commit cf5b6a9478
1 changed files with 0 additions and 4 deletions
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arch/mips/Kconfig
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@ -996,7 +996,6 @@ config CAVIUM_OCTEON_SOC
select HAVE_PLAT_FW_INIT_CMDLINE
select HAVE_PLAT_MEMCPY
select ZONE_DMA32
select HOLES_IN_ZONE
select GPIOLIB
select USE_OF
select ARCH_SPARSEMEM_ENABLE
@ -1233,9 +1232,6 @@ config HAVE_PLAT_MEMCPY
config ISA_DMA_API
bool
config HOLES_IN_ZONE
bool
config SYS_SUPPORTS_RELOCATABLE
bool
help