enable docker ppp

hc

2023-12-09 95099d4622f8cb224d94e314c7a8e0df60b13f87

 kernel/arch/nios2/include/asm/page.h
..
..
@@ -98,14 +98,7 @@
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 # define virt_to_page(vaddr)	pfn_to_page(PFN_DOWN(virt_to_phys(vaddr)))
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 # define virt_addr_valid(vaddr)	pfn_valid(PFN_DOWN(virt_to_phys(vaddr)))
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-# define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | \
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-				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
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-
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-# define UNCAC_ADDR(addr)	\
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-	((void *)((unsigned)(addr) | CONFIG_NIOS2_IO_REGION_BASE))
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-# define CAC_ADDR(addr)		\
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-	((void *)(((unsigned)(addr) & ~CONFIG_NIOS2_IO_REGION_BASE) |	\
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-		CONFIG_NIOS2_KERNEL_REGION_BASE))
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+# define VM_DATA_DEFAULT_FLAGS	VM_DATA_FLAGS_NON_EXEC
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 #include <asm-generic/memory_model.h>
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