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preventing erroneous optimization of rt_ioremap_early

zhao maosheng 1 年之前
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49b17d01ac
共有 1 个文件被更改,包括 1 次插入1 次删除
  1. 1 1
      libcpu/aarch64/common/mmu.c

+ 1 - 1
libcpu/aarch64/common/mmu.c

@@ -604,7 +604,7 @@ static int _map_single_page_2M(unsigned long *lv0_tbl, unsigned long va,
 
 
 void *rt_ioremap_early(void *paddr, size_t size)
 void *rt_ioremap_early(void *paddr, size_t size)
 {
 {
-    size_t count;
+    volatile size_t count;
     rt_ubase_t base;
     rt_ubase_t base;
     static void *tbl = RT_NULL;
     static void *tbl = RT_NULL;