!213 消除编译告警

Merge pull request !213 from x_xiny/master

components/backtrace/los_backtrace.c

@@ -241,7 +241,7 @@ VOID LOS_RecordLR(UINTPTR *LR, UINT32 LRSize, UINT32 jumpCount, UINTPTR SP)
 STATIC INLINE BOOL OsInsIsJump(UINTPTR addr)
 {
     UINT16 ins1 = *((UINT16 *)addr);
-    UINT16 ins2 = *((UINT16 *)(addr + 2));
+    UINT16 ins2 = *((UINT16 *)(addr + 2)); // 2, for the mask
 
     /* Jal ins */
     if (((ins1 & OS_JALX_INS_MASK) == OS_JAL_INS_LOW) ||

kal/cmsis/cmsis_liteos2.c

@@ -258,7 +258,7 @@ uint32_t osKernelGetTickFreq(void)
 
 uint32_t osKernelGetSysTimerCount(void)
 {
-    uint32_t countLow = 0;
+    uint32_t countLow;
     if (OS_INT_ACTIVE) {
         countLow = 0U;
     } else {

kernel/src/los_sem.c

@@ -30,7 +30,6 @@
  */
 
 #include "los_sem.h"
-#include "los_arch.h"
 #include "los_config.h"
 #include "los_debug.h"
 #include "los_hook.h"