The patch titled
Subject: mtrr, x86: remove a wrong address check in __mtrr_type_lookup()
has been removed from the -mm tree. Its filename was
mtrr-x86-remove-a-wrong-address-check-in-__mtrr_type_lookup.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Toshi Kani <toshi.kani@xxxxxx>
Subject: mtrr, x86: remove a wrong address check in __mtrr_type_lookup()
__mtrr_type_lookup() checks MTRR fixed ranges when mtrr_state.have_fixed
is set and start is less than 0x100000. However, the 'else if (start <
0x1000000)' in the code checks with a wrong address as it has an
extra-zero in the address. The code still runs correctly as this check is
meaningless, though.
This patch replaces the wrong address check with 'else' with no condition.
Signed-off-by: Toshi Kani <toshi.kani@xxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxx>
Cc: Robert Elliott <Elliott@xxxxxx>
Cc: Paul Bolle <pebolle@xxxxxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/kernel/cpu/mtrr/generic.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN arch/x86/kernel/cpu/mtrr/generic.c~mtrr-x86-remove-a-wrong-address-check-in-__mtrr_type_lookup arch/x86/kernel/cpu/mtrr/generic.c
--- a/arch/x86/kernel/cpu/mtrr/generic.c~mtrr-x86-remove-a-wrong-address-check-in-__mtrr_type_lookup
+++ a/arch/x86/kernel/cpu/mtrr/generic.c
@@ -137,7 +137,7 @@ static u8 __mtrr_type_lookup(u64 start,
idx = 1 * 8;
idx += ((start - 0x80000) >> 14);
return mtrr_state.fixed_ranges[idx];
- } else if (start < 0x1000000) {
+ } else {
idx = 3 * 8;
idx += ((start - 0xC0000) >> 12);
return mtrr_state.fixed_ranges[idx];
_
Patches currently in -mm which might be from toshi.kani@xxxxxx are
linux-next.patch
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