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Diffstat (limited to 'drivers/ata/pata_cs5536.c')
-rw-r--r--drivers/ata/pata_cs5536.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/ata/pata_cs5536.c b/drivers/ata/pata_cs5536.c
index a6e6c963b6ae..628c8fae5937 100644
--- a/drivers/ata/pata_cs5536.c
+++ b/drivers/ata/pata_cs5536.c
@@ -44,6 +44,8 @@ static int use_msr;
module_param_named(msr, use_msr, int, 0644);
MODULE_PARM_DESC(msr, "Force using MSR to configure IDE function (Default: 0)");
#else
+#undef rdmsr /* avoid accidental MSR usage on, e.g. x86-64 */
+#undef wrmsr
#define rdmsr(x, y, z) do { } while (0)
#define wrmsr(x, y, z) do { } while (0)
#define use_msr 0