[doc][doxygen]: Fix doxygen warning in comment

.github/workflows/doxygen.yml

@@ -7,14 +7,12 @@ on:
     branches:
       - master
     paths-ignore:
-      - documentation/**
       - '**/README.md'
       - '**/README_zh.md'
   pull_request:
     branches:
       - master
     paths-ignore:
-      - documentation/**
       - bsp/**
       - examples/**
       - .github/**

documentation/doxygen/kernel.h

@@ -1,5 +1,5 @@
 /*
  * This file is only used for doxygen document generation.
  */
 
 /**
@@ -58,11 +58,11 @@
  * Kernel objects include most of the facilities in the kernel:
  * - thread
  * - semaphore and mutex
  * - event/fast event, mailbox, messagequeue
  * - memory pool
  * - timer
  * @image html Kernel_Object.png "Figure 2: Kernel Object"
  * @image rtf  Kernel_Object.png "Figure 2: Kernel Object"
  *
  * Kernel objects can be static objects, whose memory is allocated in compiling.
  * It can be dynamic objects as well, whose memory is allocated from system heaps
@@ -88,7 +88,7 @@
  *
  * RT-Thread operating systems supports event/fast event, mail box and message queue.
  * - The event mechanism is used to awake a thread by setting one or more corresponding
  * bit of a binary number when an event ocurs.
  * - The fast event supports event thread queue. Once a one bit event occurs, the corresponding
  * blocked thread can be found out timing accurately, then will be waked up.
  * - In mailbox, the mail length is fixed to 4 byte, which is more effective than message queue.
@@ -154,7 +154,7 @@
  * @brief error code
  *
  * The error code is defined to identify which kind of error occurs. When some
- * bad things happen, the current thread's errno will be set. see @ref _rt_errno
+ * bad things happen, the current thread's errno will be set.
  */
 
 /**@}*/

src/kservice.c

@@ -461,6 +461,7 @@ rt_weak rt_err_t rt_backtrace_formatted_print(rt_ubase_t *buffer, long buflen)
 /**
  * @brief Print backtrace from frame to the given buffer
  *
+ * @param thread the thread which frame belongs to
  * @param frame where backtrace starts from. NULL if it's the current one
  * @param skip the number of frames to discarded counted from calling function.
  *             Noted that the inner most frame is always discarded and not counted,