From: "Luis R. Rodriguez" <[email protected]>

There area few users of mtrr_type_lookup(), including PAT.
Note that PAT can be in theory enabled without MTRR fully
kicking in, such is the case with Xen.

Cc: Andy Lutomirski <[email protected]>
Cc: Suresh Siddha <[email protected]>
Cc: Venkatesh Pallipadi <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Juergen Gross <[email protected]>
Cc: Daniel Vetter <[email protected]>
Cc: Dave Airlie <[email protected]>
Cc: Antonino Daplas <[email protected]>
Cc: Jean-Christophe Plagniol-Villard <[email protected]>
Cc: Tomi Valkeinen <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: [email protected]
Cc: Stefan Bader <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: Roger Pau MonnĂ© <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Luis R. Rodriguez <[email protected]>
---
 arch/x86/kernel/cpu/mtrr/generic.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/kernel/cpu/mtrr/generic.c 
b/arch/x86/kernel/cpu/mtrr/generic.c
index 7d74f7b..09c82de 100644
--- a/arch/x86/kernel/cpu/mtrr/generic.c
+++ b/arch/x86/kernel/cpu/mtrr/generic.c
@@ -230,6 +230,8 @@ u8 mtrr_type_lookup(u64 start, u64 end)
        int repeat;
        u64 partial_end;
 
+       /* XXX: Currently only implemented on generic_mtrr_ops */
+
        type = __mtrr_type_lookup(start, end, &partial_end, &repeat);
 
        /*
-- 
2.3.2.209.gd67f9d5.dirty

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