arcfour_encrypt(&mycontext, payload+length, crc, 4);
 
                                pframe += pxmitpriv->frag_len;
-                               pframe = (u8 *)RND4((SIZE_PTR)(pframe));
+                               pframe = (u8 *)round_up((SIZE_PTR)(pframe), 4);
                        }
                }
 
                                        arcfour_encrypt(&mycontext, payload+length, crc, 4);
 
                                        pframe += pxmitpriv->frag_len;
-                                       pframe = (u8 *)RND4((SIZE_PTR)(pframe));
+                                       pframe = (u8 *)round_up((SIZE_PTR)(pframe), 4);
                                }
                        }
 
 
                                aes_cipher(prwskey, pattrib->hdrlen, pframe, length);
                                pframe += pxmitpriv->frag_len;
-                               pframe = (u8 *)RND4((SIZE_PTR)(pframe));
+                               pframe = (u8 *)round_up((SIZE_PTR)(pframe), 4);
                        }
                }
 
 
                        payload = pframe;
 
                        for (curfragnum = 0; curfragnum < pattrib->nr_frags; curfragnum++) {
-                               payload = (u8 *)RND4((SIZE_PTR)(payload));
+                               payload = (u8 *)round_up((SIZE_PTR)(payload), 4);
                                RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("===curfragnum =%d, pframe = 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x,!!!\n",
                                        curfragnum, *payload, *(payload+1), *(payload+2), *(payload+3), *(payload+4), *(payload+5), *(payload+6), *(payload+7)));
 
 
                addr = (SIZE_PTR)(pframe);
 
-               mem_start = (unsigned char *)RND4(addr) + hw_hdr_offset;
+               mem_start = (unsigned char *)round_up(addr, 4) + hw_hdr_offset;
                memcpy(mem_start, pbuf_start + hw_hdr_offset, pattrib->hdrlen);
        }
 
 
        if (!mac_pwr_ctrl_on)
                return _sd_cmd52_read(intfhdl, addr, cnt, buf);
 
-       n = RND4(cnt);
+       n = round_up(cnt, 4);
        tmpbuf = rtw_malloc(n);
        if (!tmpbuf)
                return -1;
        )
                return sd_cmd52_read(intfhdl, addr, cnt, buf);
 
-       n = RND4(cnt);
+       n = round_up(cnt, 4);
        tmpbuf = rtw_malloc(n);
        if (!tmpbuf)
                return -1;
 
        /*  Patch for some SDIO Host 4 bytes issue */
        /*  ex. RK3188 */
-       readsize = RND4(size);
+       readsize = round_up(size, 4);
 
        /* 3 1. alloc recvbuf */
        recv_priv = &adapter->recvpriv;
 
 }
 
 #define _RND(sz, r) ((((sz)+((r)-1))/(r))*(r))
-#define RND4(x)        (((x >> 2) + (((x & 3) == 0) ?  0 : 1)) << 2)
 
 static inline u32 _RND4(u32 sz)
 {