macro ”**” requires 2 arguments, but only 1 given

为什么80%的码农都做不了架构师？>>>   

遇到一个问题，macro ”ioremap” requires 2 arguments, but only 1 given

http://stackoverflow.com/questions/518517/macro-max-requires-2-arguments-but-only-1-given 上面有解答

You're including a header file somewhere that #defines max as a macro. The best solution would be to figure out where it's being defined, and inhibit it from being defined if possible. Alternatively, you could just #undef it:

#include <evil_header_which_defines_max.h>
#undef max

最后发现是因为在ioremap的函数里，ioremap(INT_REG_START,0x1C)的逗号打成了全角符号。导致函数认为只有一个参数。

像这种情况，一般有两种可能：

• 字符编码错误，导致参数列表不符合函数定义
• 使用的函数被某个头文件宏定义过

转载于:https://my.oschina.net/lvyi/blog/303078