diff options
Diffstat (limited to 'arch/x86/mm/ioremap.c')
| -rw-r--r-- | arch/x86/mm/ioremap.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index c45b6ec5357b..c63a545ec199 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -816,9 +816,12 @@ void __init __early_set_fixmap(enum fixed_addresses idx, } pte = early_ioremap_pte(addr); + /* Sanitize 'prot' against any unsupported bits: */ + pgprot_val(flags) &= __default_kernel_pte_mask; + if (pgprot_val(flags)) set_pte(pte, pfn_pte(phys >> PAGE_SHIFT, flags)); else pte_clear(&init_mm, addr, pte); - __flush_tlb_one(addr); + __flush_tlb_one_kernel(addr); } |
