xref: /OK3568_Linux_fs/kernel/include/trace/hooks/save_incpath.h (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun  * Include this file from a header declaring vendor hooks to preserve and later
4*4882a593Smuzhiyun  * restore TRACE_INCLUDE_PATH value. Typical usage:
5*4882a593Smuzhiyun  *
6*4882a593Smuzhiyun  *   #ifdef PROTECT_TRACE_INCLUDE_PATH
7*4882a593Smuzhiyun  *   #undef PROTECT_TRACE_INCLUDE_PATH
8*4882a593Smuzhiyun  *
9*4882a593Smuzhiyun  *   #include <trace/hooks/save_incpath.h>
10*4882a593Smuzhiyun  *   #include <vendor hooks header>
11*4882a593Smuzhiyun  *   #include <trace/hooks/restore_incpath.h>
12*4882a593Smuzhiyun  *
13*4882a593Smuzhiyun  *   #else
14*4882a593Smuzhiyun  *
15*4882a593Smuzhiyun  *   <vendor hook definitions>
16*4882a593Smuzhiyun  *
17*4882a593Smuzhiyun  *   #endif
18*4882a593Smuzhiyun  *
19*4882a593Smuzhiyun  * The header that includes vendor hooks header file should define
20*4882a593Smuzhiyun  * PROTECT_TRACE_INCLUDE_PATH before including the vendor hook file like this:
21*4882a593Smuzhiyun  *
22*4882a593Smuzhiyun  *   #define PROTECT_TRACE_INCLUDE_PATH
23*4882a593Smuzhiyun  *   #include <vendor hooks header>
24*4882a593Smuzhiyun  */
25*4882a593Smuzhiyun #ifdef TRACE_INCLUDE_PATH
26*4882a593Smuzhiyun #define STORED_TRACE_INCLUDE_PATH TRACE_INCLUDE_PATH
27*4882a593Smuzhiyun #undef TRACE_INCLUDE_PATH
28*4882a593Smuzhiyun #endif
29*4882a593Smuzhiyun 
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