diff options
Diffstat (limited to 'arch/alpha/include/asm/pgtable.h')
| -rw-r--r-- | arch/alpha/include/asm/pgtable.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/arch/alpha/include/asm/pgtable.h b/arch/alpha/include/asm/pgtable.h index e9368c54be45..8e00cf9dc39d 100644 --- a/arch/alpha/include/asm/pgtable.h +++ b/arch/alpha/include/asm/pgtable.h @@ -127,10 +127,15 @@ struct vm_area_struct; #define pgprot_noncached(prot) (prot) /* - * ZERO_PAGE is a global shared page that is always zero: used - * for zero-mapped memory areas etc.. + * All caching attribute macros are identity on Alpha, so the generic + * pgprot_modify() degenerates to tautological self-comparisons. + * Override it to just return newprot directly. */ -#define ZERO_PAGE(vaddr) (virt_to_page(ZERO_PGE)) +#define pgprot_modify pgprot_modify +static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot) +{ + return newprot; +} /* * On certain platforms whose physical address space can overlap KSEG, |