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Commit 79e0bc37 authored by Sergei Shtylyov's avatar Sergei Shtylyov Committed by Ralf Baechle
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[MIPS] Fix mprotect() syscall for MIPS32 w/36-bit physical address support 


    
Fix mprotect() syscall for MIPS32 CPUs with 36-bit physical address
support: pte_modify() macro didn't clear the hardware page protection bits
before modifying...
    
Signed-off-by: default avatarSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 9370b351

include/asm-mips/pgtable.h

+3 −2
Original line number Diff line number Diff line
@@ -354,6 +354,7 @@ static inline pgprot_t pgprot_noncached(pgprot_t _prot) 
static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)

{

	pte.pte_low  &= _PAGE_CHG_MASK;

	pte.pte_high &= ~0x3f;

	pte.pte_low  |= pgprot_val(newprot);

	pte.pte_high |= pgprot_val(newprot) & 0x3f;

	return pte;