How to solve Spurious pointer conversion ?

Code C - [expand]
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void GSM_Send_Const_Cmd(char *s1, char *s2, const char *s3, const char *s4, unsigned int *idx, char *attempt, char clr) {
 
      while(strstr(s1, CopyConst2Ram(s2, s3)) == 0) {
              UART1_Write_Text(CopyConst2Ram(s2, s4));
              Delay_ms(2000);
 
              if(*attempt++ == 3) {
                  GSM_RESET();
                  memset(s1, '\0', sizeof(s1));
                  *attempt = 0;
                  *idx = 0;
              }
      }
 
      if(clr)memset(s1, '\0', sizeof(s1));
      *attempt = 0;
      *idx = 0;
}
 
void Send_SMS(char *s1, char *s2, const char *s3, const char *s4, const char *s5, const char *s6, const char *s7, char *s8, unsigned int *idx, char *attempt, char clr) {
 
    while(strstr(s1, CopyConst2Ram(s2, s3)) == 0) {
 
       GSM_Send_Const_Cmd(s1, s2, s3, s5, &idx, &attempt, 1);
       GSM_Send_Const_Cmd(s1, s2, s3, s6, &idx, &attempt, 1);
       GSM_Send_Const_Cmd(s1, s2, s4, s7, &idx, &attempt, 1);
 
       UART1_Write_Text(s8);
       Delay_ms(500);
       UART1_Write(0x1A);
 
       Delay_ms(8000);
    }
 
    memset(s1, '\0', sizeof(s1));
    *idx = 0;
}

Code C - [expand]
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unsigned int attempt = 0;
 
void ptrtest(unsigned int *atmpt) {
 
     (*atmpt)++;
 
}
 
void ptr2test(unsigned int *atmpt2) {
     
     ptrtest(atmpt2);
}
 
ptrtest(&attempt);
    
ptr2test(&attempt);