把patch文件放在了内核目录的外面，然后执行的 patch -p1 ../patch_file。linux内核新增新文件.config的时候，一直提示如下错误：
can't find file to patch at input line 268
Perhaps you used the wrong -p or --strip option?
The text leading up to this was:
--------------------------
|diff -urNp /home/cql/smb/fuxi_h/sdk-v1.1-test/taeho_sdk_release_v1.1/linux-4.19.15/.config linux-4.19.15/.config
|--- /home/cql/smb/fuxi_h/sdk-v1.1-test/taeho_sdk_release_v1.1/linux-4.19.15/.config 2020-10-16 14:48:32.315740274 +0800
|+++ linux-4.19.15/.config 2020-09-29 16:14:59.000000000 +0800
--------------------------
File to patch:
将patch文件放在了内核目录里面，执行patch -p1 patch_file就可以了，有点奇怪。