You can use a reverse patch to revert certain changes from a previous version of a file or to back out changes from a patch that caused problems.
您可以使用逆向补丁恢复文件的前一个版本的某些更改或者从造成问题的补丁中撤销更改。
The command requires two inputs: a patch file and the entire source tree for the running kernel, including any previous patches that have already been applied.
这个命令需要两个输入：一个补丁文件和正在运行的内核的完整源代码树，其中包含已经应用的所有补丁。
The simple patch in the previous example did not require any changes to the default options on the Review patch step.
前一个示例中的简单补丁不需要在Review Patch步骤中对默认选项作任何更改。
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