powerpc: Remove the symbol __flush_icache_range

And now the function flush_icache_range() is just a wrapper which
only invoke the function __flush_icache_range() directly. So we
don't have reason to keep it anymore.
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/include/asm/cacheflush.h

@@ -32,12 +32,7 @@ extern void flush_dcache_page(struct page *page);
 
 extern void __flush_disable_L1(void);
 
-extern void __flush_icache_range(unsigned long, unsigned long);
-static inline void flush_icache_range(unsigned long start, unsigned long stop)
-{
-	__flush_icache_range(start, stop);
-}
-
+extern void flush_icache_range(unsigned long, unsigned long);
 extern void flush_icache_user_range(struct vm_area_struct *vma,
 				    struct page *page, unsigned long addr,
 				    int len);

arch/powerpc/kernel/misc_32.S

@@ -327,7 +327,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_UNIFIED_ID_CACHE)
  *
  * flush_icache_range(unsigned long start, unsigned long stop)
  */
-_KPROBE(__flush_icache_range)
+_KPROBE(flush_icache_range)
 BEGIN_FTR_SECTION
 	isync
 	blr				/* for 601, do nothing */

arch/powerpc/kernel/misc_64.S

@@ -67,7 +67,7 @@ PPC64_CACHES:
  *   flush all bytes from start through stop-1 inclusive
  */
 
-_KPROBE(__flush_icache_range)
+_KPROBE(flush_icache_range)
 BEGIN_FTR_SECTION
 	blr
 END_FTR_SECTION_IFSET(CPU_FTR_COHERENT_ICACHE)

arch/powerpc/kernel/ppc_ksyms.c

@@ -111,7 +111,6 @@ EXPORT_SYMBOL(giveup_spe);
 #ifndef CONFIG_PPC64
 EXPORT_SYMBOL(flush_instruction_cache);
 #endif
-EXPORT_SYMBOL(__flush_icache_range);
 EXPORT_SYMBOL(flush_dcache_range);
 
 #ifdef CONFIG_SMP