Commit:     84288ad89e9736c7478e138f247397b9ab7a9d28
Parent:     5ebffd7c05391693b71d3326c8c78ff82f728ed0
Author:     Andrew Morton <[EMAIL PROTECTED]>
AuthorDate: Sun Jul 1 12:06:48 2007 -0700
Committer:  Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Sun Jul 1 12:29:44 2007 -0700

    i386: mtrr crash fix
    Commit 3ebad5905609476a4ff1151a66b21d9794009961 ("[PATCH] x86: Save and
    restore the fixed-range MTRRs of the BSP when suspending") added mtrr
    operations without verifying that the CPU has MTRRs.  Crashes transmeta
    Cc: "H. Peter Anvin" <[EMAIL PROTECTED]>
    Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
    Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
 arch/i386/kernel/cpu/mtrr/generic.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/arch/i386/kernel/cpu/mtrr/generic.c 
index 5a551fb..f6e4694 100644
--- a/arch/i386/kernel/cpu/mtrr/generic.c
+++ b/arch/i386/kernel/cpu/mtrr/generic.c
@@ -65,7 +65,8 @@ get_fixed_ranges(mtrr_type * frs)
 void mtrr_save_fixed_ranges(void *info)
-       get_fixed_ranges(mtrr_state.fixed_ranges);
+       if (cpu_has_mtrr)
+               get_fixed_ranges(mtrr_state.fixed_ranges);
 static void print_fixed(unsigned base, unsigned step, const mtrr_type*types)
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