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authorJiri Kosina <jkosina@suse.cz>2018-06-08 10:20:42 +0200
committerJiri Kosina <jkosina@suse.cz>2018-06-08 10:20:42 +0200
commitc1144d29f405ce1f4e6ede6482beb3d0d09750c6 (patch)
tree0f9fe36a50005bae6ffe28a4f978e71273f5b1d1 /arch/x86/mm/ioremap.c
parentHID: core: fix hid_hw_open() comment (diff)
parentHID: alps: Fix some style in 't4_read_write_register()' (diff)
downloadlinux-c1144d29f405ce1f4e6ede6482beb3d0d09750c6.tar.xz
linux-c1144d29f405ce1f4e6ede6482beb3d0d09750c6.zip
Merge branch 'for-4.18/alps' into for-linus
hid-alps driver cleanups wrt. t4_read_write_register() handling from Christophe Jaillet
Diffstat (limited to 'arch/x86/mm/ioremap.c')
-rw-r--r--arch/x86/mm/ioremap.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index e2db83bebc3b..c63a545ec199 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -816,6 +816,9 @@ 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