[ARM] Add cpu_flush_pmd()

This cset adds the missing cpu_flush_pmd() and fixes pmd_clear()
(how did I miss that first time around...)

include/asm-arm/cpu-multi32.h

@@ -96,7 +96,7 @@ extern struct processor {
 		/*
 		 * Set a PMD (handling IMP bit 4)
 		 */
-		void (*set_pmd)(pmd_t *pmdp, pmd_t pmd);
+		void (*flush_pmd)(pmd_t *pmdp);
 		/*
 		 * Set a PTE
 		 */
@@ -126,7 +126,7 @@ extern const struct processor sa110_processor_functions;
 #define cpu_icache_invalidate_page(vp)		processor.icache.invalidate_page(vp)
 
 #define cpu_set_pgd(pgd,mm)			processor.pgtable.set_pgd(pgd,mm)
-#define cpu_set_pmd(pmdp, pmd)			processor.pgtable.set_pmd(pmdp, pmd)
+#define cpu_flush_pmd(pmdp)			processor.pgtable.flush_pmd(pmdp)
 #define cpu_set_pte(ptep, pte)			processor.pgtable.set_pte(ptep, pte)
 
 #define cpu_switch_mm(pgd,mm)			cpu_set_pgd(__virt_to_phys((unsigned long)(pgd)),mm)

include/asm-arm/cpu-single.h

@@ -36,7 +36,7 @@
 #define cpu_icache_invalidate_range	__cpu_fn(CPU_NAME,_icache_invalidate_range)
 #define cpu_icache_invalidate_page	__cpu_fn(CPU_NAME,_icache_invalidate_page)
 #define cpu_set_pgd			__cpu_fn(CPU_NAME,_set_pgd)
-#define cpu_set_pmd			__cpu_fn(CPU_NAME,_set_pmd)
+#define cpu_flush_pmd			__cpu_fn(CPU_NAME,_flush_pmd)
 #define cpu_set_pte			__cpu_fn(CPU_NAME,_set_pte)
 
 #ifndef __ASSEMBLY__
@@ -65,7 +65,7 @@ extern void cpu_icache_invalidate_range(unsigned long start, unsigned long end);
 extern void cpu_icache_invalidate_page(void *virt_page);
 
 extern void cpu_set_pgd(unsigned long pgd_phys, struct mm_struct *mm);
-extern void cpu_set_pmd(pmd_t *pmdp, pmd_t pmd);
+extern void cpu_flush_pmd(pmd_t *pmdp);
 extern void cpu_set_pte(pte_t *ptep, pte_t pte);
 
 extern volatile void cpu_reset(unsigned long addr);

include/asm-arm/proc-armv/pgtable.h

@@ -123,8 +123,8 @@
 
 static inline void pmd_clear(pmd_t *pmdp)
 {
-	pmdp[0], __pmd(0));
-	pmdp[1], __pmd(0));
+	pmdp[0] = __pmd(0);
+	pmdp[1] = __pmd(0);
 	cpu_flush_pmd(pmdp);
 }