1 files changed, 0 insertions, 55 deletions

diff --git a/lib/kernel_lock.c b/lib/kernel_lock.c
index 99b0ae3d51dd..bd2bc5d887b8 100644
--- a/lib/kernel_lock.c
+++ b/lib/kernel_lock.c
@@ -9,61 +9,6 @@
 #include <linux/module.h>
 #include <linux/kallsyms.h>
 
-#if defined(CONFIG_PREEMPT) && defined(__smp_processor_id) && \
-                defined(CONFIG_DEBUG_PREEMPT)
-
-/*
- * Debugging check.
- */
-unsigned int smp_processor_id(void)
-{
-        unsigned long preempt_count = preempt_count();
-        int this_cpu = __smp_processor_id();
-        cpumask_t this_mask;
-
-        if (likely(preempt_count))
-                goto out;
-
-        if (irqs_disabled())
-                goto out;
-
-        /*
-         * Kernel threads bound to a single CPU can safely use
-         * smp_processor_id():
-         */
-        this_mask = cpumask_of_cpu(this_cpu);
-
-        if (cpus_equal(current->cpus_allowed, this_mask))
-                goto out;
-
-        /*
-         * It is valid to assume CPU-locality during early bootup:
-         */
-        if (system_state != SYSTEM_RUNNING)
-                goto out;
-
-        /*
-         * Avoid recursion:
-         */
-        preempt_disable();
-
-        if (!printk_ratelimit())
-                goto out_enable;
-
-        printk(KERN_ERR "BUG: using smp_processor_id() in preemptible [%08x] code: %s/%d\n", preempt_count(), current->comm, current->pid);
-        print_symbol("caller is %s\n", (long)__builtin_return_address(0));
-        dump_stack();
-
-out_enable:
-        preempt_enable_no_resched();
-out:
-        return this_cpu;
-}
-
-EXPORT_SYMBOL(smp_processor_id);
-
-#endif /* PREEMPT && __smp_processor_id && DEBUG_PREEMPT */
-
 #ifdef CONFIG_PREEMPT_BKL
 /*
  * The 'big kernel semaphore'