x86/intel_rdt: Init padding only if a device exists

If no device exists it's pointless to calculate the padding data for the
schemata files.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: ravi.v.shankar@intel.com
Cc: tony.luck@intel.com
Cc: fenghua.yu@intel.com
Cc: vikas.shivappa@intel.com

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/x86/kernel/cpu/intel_rdt.c b/arch/x86/kernel/cpu/intel_rdt.c
index 70a3307fd592..2802cad0371d 100644
--- a/arch/x86/kernel/cpu/intel_rdt.c
+++ b/arch/x86/kernel/cpu/intel_rdt.c
@@ -212,8 +212,6 @@ static inline bool get_rdt_resources(void)
                 ret = true;
         }
 
-        rdt_init_padding();
-
         return ret;
 }
 
@@ -410,6 +408,8 @@ static int __init intel_rdt_late_init(void)
         if (!get_rdt_resources())
                 return -ENODEV;
 
+        rdt_init_padding();
+
         state = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN,
                                   "x86/rdt/cat:online:",
                                   intel_rdt_online_cpu, intel_rdt_offline_cpu);