On 02.03.20 02:56, Anshuman Khandual wrote:

Currently there are many platforms that dont enable HAVE_ARCH_PTE_SPECIAL
but required to define quite similar fallback stubs for special page table
entry helpers such as pte_special() and pte_mkspecial(), as they get build
in generic MM without a config check. This creates two generic fallback
stub definitions for these helpers, eliminating much code duplication.

mips platform has a special case where pte_special() and pte_mkspecial()
visibility is wider than what HAVE_ARCH_PTE_SPECIAL enablement requires.
This restricts those symbol visibility in order to avoid redefinitions
which is now exposed through this new generic stubs and subsequent build
failure. arm platform set_pte_at() definition needs to be moved into a C
file just to prevent a build failure.

Signed-off-by: Anshuman Khandual <redacted>

for parisc:

Acked-by: Helge Deller <deller@gmx.de> # parisc

Helge

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