!928 Fix : 内核告警清理

Merge pull request !928 from yinjiaming/fix

compat/posix/src/time.c

@@ -478,7 +478,6 @@ static int PthreadGetCputime(clockid_t clockID, struct timespec *ats)
     uint64_t runtime;
     UINT32 intSave;
     UINT32 tid = GetTidFromClockID(clockID);
-
     if (OS_TID_CHECK_INVALID(tid)) {
         return -EINVAL;
     }

drivers/block/disk/include/disk_pri.h

@@ -42,7 +42,7 @@
 
 #ifdef __cplusplus
 #if __cplusplus
-extern "C"{
+extern "C" {
 #endif
 #endif /* __cplusplus */
 

fs/fat/os_adapt/fatfs.c

@@ -343,7 +343,8 @@ static FRESULT init_cluster(DIR_FILE *pdfp, DIR *dp_new, FATFS *fs, int type, co
     return FR_OK;
 }
 
-static int fatfs_create_obj(struct Vnode *parent, const char *name, int mode, struct Vnode **vpp, BYTE type, const char *target)
+static int fatfs_create_obj(struct Vnode *parent, const char *name, int mode, struct Vnode **vpp,
+                            BYTE type,  const char *target)
 {
     struct Vnode *vp = NULL;
     FATFS *fs = (FATFS *)parent->originMount->data;

fs/include/fs/fs_operation.h

 /*
  * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
- * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2022 Huawei Device Co., Ltd. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
@@ -244,8 +244,9 @@ extern int chattr(const char *pathname, struct IATTR *attr);
  *
  * @retval #0  On success.
  * @retval #-1 On failure with errno set.
- * @retval CONTINE_NUTTX_FCNTL doesn't support some cmds in VfsFcntl, needs to continue going through Nuttx vfs operation.</li>
- *
+ * @retval CONTINE_NUTTX_FCNTL doesn't support some cmds in VfsFcntl, needs to continue going through 
+ * Nuttx vfs operation.</li>
+ *     
  * @par Dependency:
  * <ul><li>fs.h</li></ul>
  * @see None

fs/jffs2/src/vfs_jffs2.c

 /*
- * Copyright (c) 2021-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2021-2022 Huawei Device Co., Ltd. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
@@ -682,7 +682,6 @@ int VfsJffs2Rmdir(struct Vnode *parentVnode, struct Vnode *targetVnode, const ch
     LOS_MuxLock(&g_jffs2FsLock, (uint32_t)JFFS2_WAITING_FOREVER);
 
     ret = jffs2_rmdir(parentInode, targetInode, (const unsigned char *)path);
-
     if (ret == 0) {
         (void)jffs2_iput(targetInode);
     }
@@ -809,7 +808,6 @@ int VfsJffs2Unlink(struct Vnode *parentVnode, struct Vnode *targetVnode, const c
     LOS_MuxLock(&g_jffs2FsLock, (uint32_t)JFFS2_WAITING_FOREVER);
 
     ret = jffs2_unlink(parentInode, targetInode, (const unsigned char *)path);
-
     if (ret == 0) {
         (void)jffs2_iput(targetInode);
     }

fs/proc/os_adapt/fs_cache_proc.c

 /*
- * Copyright (c) 2021-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2021-2022 Huawei Device Co., Ltd. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
@@ -154,7 +154,8 @@ static int FsCacheInfoFill(struct SeqBuf *buf, void *arg)
 
     VnodeHold();
     LosBufPrintf(buf, "\n=================================================================\n");
-    LosBufPrintf(buf, "VnodeAddr     ParentAddr     DataAddr      VnodeOps      Hash          Ref    Type    Gid    Uid    Mode\n");
+    LosBufPrintf(buf,
+        "VnodeAddr     ParentAddr     DataAddr      VnodeOps      Hash           Ref    Type    Gid    Uid    Mode\n");
     vnodeVirtual = VnodeListProcess(buf, GetVnodeVirtualList());
     vnodeFree = VnodeListProcess(buf, GetVnodeFreeList());
     vnodeActive = VnodeListProcess(buf, GetVnodeActiveList());

fs/proc/src/proc_shellcmd.c

@@ -62,8 +62,8 @@ int OsShellCmdWriteProc(int argc, char **argv)
 
     if (argc == WRITEPROC_ARGC) {
         value = argv[0];
-        path = argv[2];
-        len = strlen(value) + 1;  /* +1:add the \0 */
+        path = argv[2]; // 2: index of path
+        len = strlen(value) + 1;  /* + 1:add the \0 */
         if (strncmp(argv[1], ">>", strlen(">>")) == 0) {
             if ((realpath(path, realPath) == NULL) || (strncmp(realPath, rootProcDir, strlen(rootProcDir)) != 0)) {
                 PRINT_ERR("No such file or directory\n");

fs/vfs/epoll/fs_epoll.c

 /*
- * Copyright (c) 2021-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2021-2022 Huawei Device Co., Ltd. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
@@ -304,7 +304,7 @@ int epoll_wait(int epfd, FAR struct epoll_event *evs, int maxevents, int timeout
     int pollSize;
 
     epHead = EpollGetDataBuff(epfd);
-    if (epHead== NULL) {
+    if (epHead == NULL) {
         set_errno(EBADF);
         return -1;
     }

fs/vfs/operation/fullpath.c

@@ -225,7 +225,6 @@ static char *vfs_normalize_fullpath(const char *directory, const char *filename,
         /* it's a absolute path, use it directly */
 
         fullpath = strdup(filename); /* copy string */
-
         if (fullpath == NULL) {
             *pathname = NULL;
             set_errno(ENOMEM);
@@ -258,11 +257,10 @@ int vfs_normalize_path(const char *directory, const char *filename, char **pathn
     }
 
 #ifdef VFS_USING_WORKDIR
-    if (directory == NULL)
-      {
+    if (directory == NULL) {
         spin_lock_irqsave(&curr->files->workdir_lock, lock_flags);
         directory = curr->files->workdir;
-      }
+    }
 #else
     if ((directory == NULL) && (filename[0] != '/')) {
         PRINT_ERR("NO_WORKING_DIR\n");
@@ -275,20 +273,18 @@ int vfs_normalize_path(const char *directory, const char *filename, char **pathn
 
     if ((filename[0] != '/') && (strlen(directory) + namelen + 2 > TEMP_PATH_MAX)) {
 #ifdef VFS_USING_WORKDIR
-        if (dir_flags == TRUE)
-          {
+        if (dir_flags == TRUE) {
             spin_unlock_irqrestore(&curr->files->workdir_lock, lock_flags);
-          }
+        }
 #endif
         return -ENAMETOOLONG;
     }
 
     fullpath = vfs_normalize_fullpath(directory, filename, pathname, namelen);
 #ifdef VFS_USING_WORKDIR
-    if (dir_flags == TRUE)
-      {
+    if (dir_flags == TRUE) {
         spin_unlock_irqrestore(&curr->files->workdir_lock, lock_flags);
-      }
+    }
 #endif
     if (fullpath == NULL) {
         return -get_errno();
@@ -308,7 +304,7 @@ int vfs_normalize_path(const char *directory, const char *filename, char **pathn
 
 int vfs_normalize_pathat(int dirfd, const char *filename, char **pathname)
 {
-    /* Get path by dirfd*/
+    /* Get path by dirfd */
     char *relativeoldpath = NULL;
     char *fullpath = NULL;
     int ret = 0;

fs/vfs/operation/vfs_other.c

@@ -132,19 +132,19 @@ int VfsPermissionCheck(uint fuid, uint fgid, uint fileMode, int accMode)
 #ifdef VFS_USING_WORKDIR
 static int SetWorkDir(const char *dir, size_t len)
 {
-  errno_t ret;
-  uint lock_flags;
-  LosProcessCB *curr = OsCurrProcessGet();
-
-  spin_lock_irqsave(&curr->files->workdir_lock, lock_flags);
-  ret = strncpy_s(curr->files->workdir, PATH_MAX, dir, len);
-  curr->files->workdir[PATH_MAX - 1] = '\0';
-  spin_unlock_irqrestore(&curr->files->workdir_lock, lock_flags);
-  if (ret != EOK) {
-      return -1;
-  }
-
-  return 0;
+    errno_t ret;
+    uint lock_flags;
+    LosProcessCB *curr = OsCurrProcessGet();
+
+    spin_lock_irqsave(&curr->files->workdir_lock, lock_flags);
+    ret = strncpy_s(curr->files->workdir, PATH_MAX, dir, len);
+    curr->files->workdir[PATH_MAX - 1] = '\0';
+    spin_unlock_irqrestore(&curr->files->workdir_lock, lock_flags);
+    if (ret != EOK) {
+        return -1;
+    }
+
+        return 0;
 }
 #endif
 
@@ -155,7 +155,6 @@ int chdir(const char *path)
     char *fullpath_bak = NULL;
     struct stat statBuff;
 
-
     if (!path) {
         set_errno(EFAULT);
         return -1;

fs/vfs/operation/vfs_utime.c

@@ -57,7 +57,6 @@ int utime(const char *path, const struct utimbuf *ptimes)
 
     /* Sanity checks */
 
-
     if (path == NULL) {
         ret = -EINVAL;
         goto errout;

fs/vfs/vnode.c

 /*
- * Copyright (c) 2021-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2021-2022 Huawei Device Co., Ltd. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
@@ -239,7 +239,7 @@ BOOL VnodeInUseIter(const struct Mount *mount)
     return FALSE;
 }
 
-int VnodeHold()
+int VnodeHold(void)
 {
     int ret = LOS_MuxLock(&g_vnodeMux, LOS_WAIT_FOREVER);
     if (ret != LOS_OK) {
@@ -248,7 +248,7 @@ int VnodeHold()
     return ret;
 }
 
-int VnodeDrop()
+int VnodeDrop(void)
 {
     int ret = LOS_MuxUnlock(&g_vnodeMux);
     if (ret != LOS_OK) {
@@ -583,7 +583,7 @@ int VnodeCreate(struct Vnode *parent, const char *name, int mode, struct Vnode *
     return 0;
 }
 
-int VnodeDevInit()
+int VnodeDevInit(void)
 {
     struct Vnode *devNode = NULL;
     struct Mount *devMount = NULL;
@@ -616,7 +616,7 @@ int VnodeGetattr(struct Vnode *vnode, struct stat *buf)
     return LOS_OK;
 }
 
-struct Vnode *VnodeGetRoot()
+struct Vnode *VnodeGetRoot(void)
 {
     return g_rootVnode;
 }
@@ -697,7 +697,7 @@ LIST_HEAD* GetVnodeActiveList()
     return &g_vnodeActiveList;
 }
 
-int VnodeClearCache()
+int VnodeClearCache(void)
 {
     struct Vnode *item = NULL;
     struct Vnode *nextItem = NULL;

kernel/include/los_rwlock.h

@@ -50,8 +50,8 @@ extern "C" {
  * Rwlock object.
  */
 typedef struct OsRwlock {
-    INT32 magic:24;        /**< Magic number */
-    INT32 rwCount:8;       /**< Times of locking the rwlock, rwCount > 0 when rwkick is read mode, rwCount < 0
+    INT32 magic : 24;        /**< Magic number */
+    INT32 rwCount : 8;       /**< Times of locking the rwlock, rwCount > 0 when rwkick is read mode, rwCount < 0
                                 when the rwlock is write mode, rwCount = 0 when the lock is free. */
     VOID *writeOwner;      /**< The current write thread that is locking the rwlock */
     LOS_DL_LIST readList;  /**< Read waiting list */

net/lwip-2.1/enhancement/include/lwip/fixme.h

@@ -58,7 +58,7 @@
 
 #define ip_addr_set_val(dest, src)  do { \
                                         IP_SET_TYPE_VAL(*dest, IP_GET_TYPE(src)); \
-                                        if(IP_IS_V6_VAL(*(src))) { \
+                                        if (IP_IS_V6_VAL(*(src))) { \
                                             ip6_addr_set(ip_2_ip6(dest), ip_2_ip6(src)); \
                                         } else { \
                                             ip4_addr_set(ip_2_ip4(dest), ip_2_ip4(src)); \

net/lwip-2.1/enhancement/src/api_shell.c

@@ -365,19 +365,19 @@ int print_netif(struct netif *netif, char *print_buf, unsigned int buf_len)
     ret = snprintf_s(tmp, buf_len, (buf_len - 1), "\tRX packets:%u ",
                      netif->mib2_counters.ifinucastpkts + netif->mib2_counters.ifinnucastpkts);
     if ((ret <= 0) || ((unsigned int)ret >= buf_len))
-      goto out;
+        goto out;
     tmp += ret;
     buf_len -= (unsigned int)ret;
 
     ret = snprintf_s(tmp, buf_len, (buf_len - 1), "errors:%u ", netif->mib2_counters.ifinerrors);
     if ((ret <= 0) || ((unsigned int)ret >= buf_len))
-      goto out;
+        goto out;
     tmp += ret;
     buf_len -= (unsigned int)ret;
 
     ret = snprintf_s(tmp, buf_len, (buf_len - 1), "dropped:%u ", netif->mib2_counters.ifindiscards);
     if ((ret <= 0) || ((unsigned int)ret >= buf_len))
-      goto out;
+        goto out;
     tmp += ret;
     buf_len -= (unsigned int)ret;
 
@@ -1031,12 +1031,12 @@ u32_t lwip_ifconfig(int argc, const char **argv)
 #if LWIP_ARP && LWIP_ENABLE_IP_CONFLICT_SIGNAL
     if ((ifconfig_cmd.option & IFCONFIG_OPTION_SET_IP) && IP_IS_V4_VAL((ifconfig_cmd.ip_addr))) {
       /* Create the semaphore for ip conflict detection. */
-      if (sys_sem_new(&ip_conflict_detect, 0) != ERR_OK) {
-        sys_sem_free(&ifconfig_cmd.cb_completed);
-        PRINTK("ifconfig: internal error\n");
-        return 1;
-      }
-      is_ip_conflict_signal = 1;
+        if (sys_sem_new(&ip_conflict_detect, 0) != ERR_OK) {
+            sys_sem_free(&ifconfig_cmd.cb_completed);
+            PRINTK("ifconfig: internal error\n");
+            return 1;
+        }
+        is_ip_conflict_signal = 1;
     }
 #endif /* LWIP_ARP && LWIP_ENABLE_IP_CONFLICT_SIGNAL */
 
@@ -1057,8 +1057,8 @@ u32_t lwip_ifconfig(int argc, const char **argv)
         sys_sem_free(&ifconfig_cmd.cb_completed);
 #if LWIP_ARP && LWIP_ENABLE_IP_CONFLICT_SIGNAL
         if ((ifconfig_cmd.option & IFCONFIG_OPTION_SET_IP) && IP_IS_V4_VAL((ifconfig_cmd.ip_addr))) {
-          is_ip_conflict_signal = 0;
-          sys_sem_free(&ip_conflict_detect);
+            is_ip_conflict_signal = 0;
+            sys_sem_free(&ip_conflict_detect);
         }
 #endif /* LWIP_ARP && LWIP_ENABLE_IP_CONFLICT_SIGNAL */
 
@@ -1076,37 +1076,37 @@ u32_t lwip_ifconfig(int argc, const char **argv)
     ifconfig_cmd.cb_print_buf[PRINT_BUF_LEN - 1] = '\0';
     PRINTK("%s", ifconfig_cmd.cb_print_buf);
 #if LWIP_ARP && LWIP_ENABLE_IP_CONFLICT_SIGNAL
-    /* Pend 2 seconds for waiting the arp reply if the ip is already in use.*/
+    /* Pend 2 seconds for waiting the arp reply if the ip is already in use. */
     if ((ifconfig_cmd.option & IFCONFIG_OPTION_SET_IP) && IP_IS_V4_VAL((ifconfig_cmd.ip_addr))) {
-      err = (err_t)sys_arch_sem_wait(&ip_conflict_detect, DUP_ARP_DETECT_TIME);
-      is_ip_conflict_signal = 0;
-      sys_sem_free(&ip_conflict_detect);
-      if (err < 0) {
-        /* The result neither conflict nor timeout. */
-        PRINT_ERR("ifconfig: internal error\n");
-        sys_sem_free(&ifconfig_cmd.cb_completed);
-        return 1;
-      } else if (err < DUP_ARP_DETECT_TIME) {
-        /* Duplicate use of new ip, restore it to the old one. */
-        PRINT_ERR("ifconfig: ip conflict!\n");
-        ip_addr_set_ip4_u32_val(ifconfig_cmd.ip_addr, old_ip4addr);
-        ret = tcpip_callback(lwip_ifconfig_internal, &ifconfig_cmd);
-        if (ret != ERR_OK) {
-          sys_sem_free(&ifconfig_cmd.cb_completed);
-          PRINTK("%s : tcpip_callback failed in line %d : errnu %d", __FUNCTION__, __LINE__, ret);
-          return 1;
+        err = (err_t)sys_arch_sem_wait(&ip_conflict_detect, DUP_ARP_DETECT_TIME);
+        is_ip_conflict_signal = 0;
+        sys_sem_free(&ip_conflict_detect);
+        if (err < 0) {
+            /* The result neither conflict nor timeout. */
+            PRINT_ERR("ifconfig: internal error\n");
+            sys_sem_free(&ifconfig_cmd.cb_completed);
+            return 1;
+        } else if (err < DUP_ARP_DETECT_TIME) {
+            /* Duplicate use of new ip, restore it to the old one. */
+            PRINT_ERR("ifconfig: ip conflict!\n");
+            ip_addr_set_ip4_u32_val(ifconfig_cmd.ip_addr, old_ip4addr);
+            ret = tcpip_callback(lwip_ifconfig_internal, &ifconfig_cmd);
+            if (ret != ERR_OK) {
+                sys_sem_free(&ifconfig_cmd.cb_completed);
+                PRINTK("%s : tcpip_callback failed in line %d : errnu %d", __FUNCTION__, __LINE__, ret);
+                return 1;
+            }
+            (void)sys_arch_sem_wait(&ifconfig_cmd.cb_completed, 0);
+            sys_sem_free(&ifconfig_cmd.cb_completed);
+            ifconfig_cmd.cb_print_buf[PRINT_BUF_LEN - 1] = '\0';
+            PRINTK("%s", ifconfig_cmd.cb_print_buf);
+            return 1;
         }
-        (void)sys_arch_sem_wait(&ifconfig_cmd.cb_completed, 0);
-        sys_sem_free(&ifconfig_cmd.cb_completed);
-        ifconfig_cmd.cb_print_buf[PRINT_BUF_LEN - 1] = '\0';
-        PRINTK("%s", ifconfig_cmd.cb_print_buf);
-        return 1;
-      }
     }
 #endif /* LWIP_ARP && LWIP_ENABLE_IP_CONFLICT_SIGNAL */
 #if LWIP_IPV6
     if ((ifconfig_cmd.option & IFCONFIG_OPTION_SET_IP) && IP_IS_V6_VAL(ifconfig_cmd.ip_addr)) {
-        /* Pend 2 seconds for waiting the arp reply if the ip is already in use.*/
+        /* Pend 2 seconds for waiting the arp reply if the ip is already in use. */
         retval = sys_arch_sem_wait(&dup_addr_detect, DUP_ARP_DETECT_TIME);
         is_dup_detect_initialized = 0;
         sys_sem_free(&dup_addr_detect);
@@ -1191,7 +1191,6 @@ void lwip_arp_show_internal(struct netif *netif, char *printf_buf, unsigned int
                  || (state == ETHARP_STATE_STATIC)
 #endif /* ETHARP_SUPPORT_STATIC_ENTRIES */
                 ) && arp_table[i].netif) {
-
                 if (strcmp(netif_get_name(netif), netif_get_name(arp_table[i].netif)) != 0) {
                     continue;
                 }
@@ -1305,7 +1304,7 @@ void lwip_arp_internal(void *arg)
                 for (netif = netif_list; netif != NULL; netif = netif->next) {
                     ret = etharp_delete_arp_entry(netif, &ipaddr);
                     if (ret == ERR_OK) {
-                        /*only can del success one time*/
+                        /* only can del success one time */
                         break;
                     }
                 }
@@ -1387,7 +1386,7 @@ u32_t lwip_arp(int argc, const char **argv)
                 goto arp_error;
             }
             i += 2;
-            argc -= 2;
+            argc -= 2; // 2: number of used parameters
         } else if (strcmp("-d", argv[i]) == 0 && (argc > 1)) {
             /* arp delete */
             arp_cmd.option = ARP_OPTION_DEL;
@@ -1399,8 +1398,8 @@ u32_t lwip_arp(int argc, const char **argv)
             }
 
             i += 2;
-            argc -= 2;
-        } else if (strcmp("-s", argv[i]) == 0 && (argc > 2)) {
+            argc -= 2; // 2: number of used parameters
+        } else if (strcmp("-s", argv[i]) == 0 && (argc > 2)) { // 2: require more than 2 parameters
             /* arp add */
             char *digit = NULL;
             u32_t macaddrlen = strlen(argv[i + 2]) + 1;
@@ -1418,7 +1417,7 @@ u32_t lwip_arp(int argc, const char **argv)
                 goto arp_error;
             }
 
-            /*cannot add an arp entry of 127.*.*.* */
+            /* cannot add an arp entry of 127.*.*.* */
             if ((arp_cmd.ipaddr & (u32_t)0x0000007fUL) == (u32_t)0x0000007fUL) {
                 PRINTK("IP address is not correct!\n");
                 goto arp_error;
@@ -1452,7 +1451,7 @@ u32_t lwip_arp(int argc, const char **argv)
             }
 
             i += 3;
-            argc -= 3;
+            argc -= 3; // 3: number of used parameters
         } else {
             goto arp_error;
         }
@@ -1727,7 +1726,7 @@ LWIP_STATIC int osPingFunc(u32_t destip, u32_t cnt, u32_t interval, u32_t data_l
                             break;
                         }
                         intrvl -= 1000;
-                        sys_msleep(1000);
+                        sys_msleep(1000); // 1000: delay 1 s
                         if (ping_kill == 1)
                             break;
                     } while (intrvl > 0);
@@ -1819,7 +1818,7 @@ u32_t osShellPing(int argc, const char **argv)
             count = ret;
             count_set = 1;
             i += 2;
-            argc -= 2;
+            argc -= 2; // 2: nuber of arguments that has been checked
         } else if (strcmp("-t", argv[i]) == 0) {
             count = 0; /* ping forerver */
             count_set = 1;
@@ -1834,7 +1833,7 @@ u32_t osShellPing(int argc, const char **argv)
 
             interval = ret;
             i += 2;
-            argc -= 2;
+            argc -= 2; // 2:number of arguments that has been checked
         } else if (strcmp("-l", argv[i]) == 0 && (argc > 1)) {
             ret = atoi(argv[i + 1]);
             if (ret < 0 || ret > (int)(LWIP_MAX_UDP_RAW_SEND_SIZE - sizeof(struct icmp_echo_hdr))) {
@@ -1844,7 +1843,7 @@ u32_t osShellPing(int argc, const char **argv)
             }
             data_len = ret;
             i += 2;
-            argc -= 2;
+            argc -= 2; // 2: number of elements has been checked
         } else if (strcmp("-k", argv[i]) == 0) {
             if (ping_taskid > 0) {
                 ping_kill = 1; /* stop the current ping task */
@@ -1896,7 +1895,7 @@ u32_t osShellPing(int argc, const char **argv)
         stPingTask.auwArgs[0] = dst_ipaddr.addr; /* network order */
         stPingTask.auwArgs[1] = count;
         stPingTask.auwArgs[2] = interval;
-        stPingTask.auwArgs[3] = data_len;
+        stPingTask.auwArgs[3] = data_len; // 3: index of data length
         ret = LOS_TaskCreate((UINT32 *)(&ping_taskid), &stPingTask);
         if (ret != LOS_OK) {
             PRINTK("ping_task create failed 0x%08x.\n", ret);
@@ -1923,7 +1922,7 @@ ping_error:
 SHELLCMD_ENTRY(ping_shellcmd, CMD_TYPE_EX, "ping", XARGS, (CmdCallBackFunc)osShellPing);
 #endif /* LOSCFG_SHELL */
 
-#else /* LWIP_EXT_POLL_SUPPORT*/
+#else /* LWIP_EXT_POLL_SUPPORT */
 
 u32_t osShellPing(int argc, const char **argv)
 {
@@ -2076,7 +2075,7 @@ FAILURE:
 SHELLCMD_ENTRY(ping_shellcmd, CMD_TYPE_EX, "ping", XARGS, (CmdCallBackFunc)osShellPing);
 #endif /* LOSCFG_SHELL */
 
-#endif /* LWIP_EXT_POLL_SUPPORT*/
+#endif /* LWIP_EXT_POLL_SUPPORT */
 
 #if LWIP_IPV6
 u32_t osShellPing6(int argc, const char **argv)
@@ -2311,6 +2310,7 @@ REDUCE_SELECT_TIME:
     PRINTK("--- %s ping statistics ---\n", argv[ping6_params.host_index]);
     PRINTK("%d packets transmitted, %d received, %.2f%% packet loss, time %dms\n",
            nsent, nrecieve, (float)(((float)(nsent - nrecieve)) * ((float)(100)) / ((float)(nsent))),
+           /* 1000: convert seconds to milliseconds, 1000000: convert nanoseconds to milliseconds */
            ((last.tv_sec - first.tv_sec) * 1000 + (last.tv_nsec - first.tv_nsec) / 1000000));
     if (nrecieve) {
         /* Display rtt stats only if at least one packet is received */
@@ -2629,7 +2629,7 @@ usage:
 SHELLCMD_ENTRY(ntpdate_shellcmd, CMD_TYPE_EX, "ntpdate", XARGS, (CmdCallBackFunc)osShellNtpdate);
 #endif /* LOSCFG_SHELL_CMD_DEBUG */
 
-#endif /* LWIP_SNTP*/
+#endif /* LWIP_SNTP */
 
 #if LWIP_DNS
 u32_t osShellDns(int argc, const char **argv)
@@ -2866,7 +2866,7 @@ int netstat_tcp_recvq(struct tcp_pcb *tpcb)
             case NETCONN_UDP_IPV6:
 #endif
             case NETCONN_UDP:
-                SYS_ARCH_GET(((unsigned int)conn->recv_avail /*+ conn->lrcv_left*/), retVal);
+                SYS_ARCH_GET(((unsigned int)conn->recv_avail), retVal); // + conn->lrcv_left
                 break;
             default:
                 retVal = 0; /* ur... very ugly, damn DHCP DNS and SNTP */
@@ -2922,7 +2922,7 @@ int netstat_udp_sendq6(struct udp_pcb *upcb)
 #else
     ret = netstat_get_udp_sendQLen6(upcb, neighbor_cache[idx].q);
     if (ret >= 0) {
-      retLen += ret;
+        retLen += ret;
     }
 #endif
     return retLen;
@@ -2966,10 +2966,10 @@ int netstat_udp_sendq(struct udp_pcb *upcb)
 #else
         ret = netstat_get_udp_sendQLen(upcb, arp_table[arpidx].q);
         if (ret > 0) {
-          retLen += ret;
-          if (retLen <= 0) { // overflow, set rteLen = -1 to indicate
-            retLen = -1;
-          }
+            retLen += ret;
+            if (retLen <= 0) { // overflow, set rteLen = -1 to indicate
+                retLen = -1;
+            }
         }
 #endif
     }
@@ -2992,7 +2992,7 @@ int netstat_netconn_recvq(const struct netconn *conn)
         case NETCONN_PKT_RAW:
 #endif
         case NETCONN_UDP:
-            SYS_ARCH_GET(((unsigned int)conn->recv_avail /*+ conn->lrcv_left*/), retVal);
+            SYS_ARCH_GET(((unsigned int)conn->recv_avail), retVal); // + conn->lrcv_left
             break;
         default:
             retVal = 0; /* ur... very ugly, damn DHCP DNS and SNTP */
@@ -3271,10 +3271,10 @@ void netstat_internal(void *ctx)
             recvQlen = netstat_netconn_recvq(rpcb->recv_arg);
             sendQlen = netstat_netconn_sendq(rpcb->recv_arg);
 
-            proto = rpcb->protocol;//raw_proto;
+            proto = rpcb->protocol; // raw_proto;
             iRet = snprintf_s((char *)(entry_buf + entry_buf_offset), entry_buf_len, entry_buf_len - 1,
                               "%-8s%-12d%-12d%-20s%-20s%-16u%-16d\n",
-                              "raw", recvQlen, sendQlen, local_ip_port, remote_ip_port, proto, /*rpcb->hdrincl*/0);
+                              "raw", recvQlen, sendQlen, local_ip_port, remote_ip_port, proto, 0); // rpcb->hdrincl
             if ((iRet <= 0) || ((u32_t)(iRet) >= entry_buf_len)) {
                 goto out;
             }
@@ -3297,7 +3297,8 @@ void netstat_internal(void *ctx)
             sendQlen = netstat_netconn_sendq(rpcb->recv_arg);
 
             for (netif = netif_list; netif != NULL; netif = netif->next) {
-                if (netif_get_index(netif)/*netif->ifindex*/ == rpcb->netif_idx/*index*/) {
+                /* netif->ifindex and index */
+                if (netif_get_index(netif) == rpcb->netif_idx) {
                     (void)snprintf_s((char *)netif_name, IFNAMSIZ, IFNAMSIZ - 1, "%s", netif_get_name(netif));
                     break;
                 }
@@ -3307,7 +3308,7 @@ void netstat_internal(void *ctx)
                 (void)snprintf_s((char *)netif_name, IFNAMSIZ, IFNAMSIZ - 1, "%s", "None");
             }
 
-            proto = rpcb->protocol;//ntohs(rpcb->proto.eth_proto);
+            proto = rpcb->protocol; // ntohs(rpcb->proto.eth_proto);
 
             iRet = snprintf_s((char *)(entry_buf + entry_buf_offset), entry_buf_len, entry_buf_len - 1,
                               "%-12s%-12d%-12d%-16x%-12s\n", "pkt-raw", recvQlen, sendQlen, proto, netif_name);
@@ -3884,4 +3885,4 @@ SHELLCMD_ENTRY(reboot_shellcmd, CMD_TYPE_EX, "reboot", XARGS, (CmdCallBackFunc)o
 #endif /* LOSCFG_SHELL_CMD_DEBUG */
 #endif
 
-#endif //LWIP_ENABLE_LOS_SHELL_CMD
+#endif // LWIP_ENABLE_LOS_SHELL_CMD

net/lwip-2.1/enhancement/src/dhcps.c

@@ -435,9 +435,9 @@ LWIP_STATIC void handle_discover(struct netif *netif, struct dhcps *dhcps,
     }
 #else
     else {
-      LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE,
-                  ("handle_discover: sendto(OFFER, IP_ADDR_BROADCAST, DHCP_CLIENT_PORT)\n"));
-      (void)udp_sendto_if_src(dhcps->pcb, out_msg, IP_ADDR_BROADCAST, DHCP_CLIENT_PORT, netif, &(netif->ip_addr));
+        LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE,
+                    ("handle_discover: sendto(OFFER, IP_ADDR_BROADCAST, DHCP_CLIENT_PORT)\n"));
+        (void)udp_sendto_if_src(dhcps->pcb, out_msg, IP_ADDR_BROADCAST, DHCP_CLIENT_PORT, netif, &(netif->ip_addr));
     }
 #endif
 

net/lwip-2.1/enhancement/src/fixme.c

@@ -412,7 +412,7 @@ int ip6addr_aton(const char *cp, ip6_addr_t *addr)
     int squash_pos = ipv6_blocks;
     int i;
     const char *s = cp;
-    const char *ss = cp-1;
+    const char *ss = cp - 1;
 
     for (; ; s++) {
         if (current_block_index >= ipv6_blocks) {

net/lwip-2.1/porting/src/driverif.c

@@ -98,10 +98,10 @@ driverif_output(struct netif *netif, struct pbuf *p)
 
 #if PF_PKT_SUPPORT
     if (all_pkt_raw_pcbs != NULL) {
-    p->flags = (u16_t)(p->flags & ~(PBUF_FLAG_LLMCAST | PBUF_FLAG_LLBCAST | PBUF_FLAG_HOST));
-    p->flags |= PBUF_FLAG_OUTGOING;
-    (void)raw_pkt_input(p, netif, NULL);
-  }
+        p->flags = (u16_t)(p->flags & ~(PBUF_FLAG_LLMCAST | PBUF_FLAG_LLBCAST | PBUF_FLAG_HOST));
+        p->flags |= PBUF_FLAG_OUTGOING;
+        (void)raw_pkt_input(p, netif, NULL);
+    }
 #endif
 
 #if ETH_PAD_SIZE

net/lwip-2.1/porting/src/sockets.c

@@ -803,12 +803,10 @@ static u8_t lwip_ioctl_internal_SIOCSIFHWADDR(struct ifreq *ifr)
     }
 #endif
     else {
-
         /* bring netif down to clear all Neighbor Cache Entry */
         (void)netif_set_down(netif);
 
         ret = netif_set_hwaddr(netif, (const unsigned char *)ifr->ifr_hwaddr.sa_data, netif->hwaddr_len);
-
         if (ret != ERR_OK) {
             (void)netif_set_up(netif);
             return err_to_errno(ret);
@@ -979,7 +977,6 @@ static u8_t lwip_ioctl_internal_SIOCGIFFLAGS(struct ifreq *ifr)
 #endif /* LWIP_IGMP || LWIP_IPV6_MLD */
 
 #if LWIP_DHCP
-        //if ((netif->flags & NETIF_FLAG_DHCP) != 0) {
         if (dhcp_supplied_address(netif)) {
             ifr->ifr_flags = (short)((unsigned short)ifr->ifr_flags | IFF_DYNAMIC);
         } else {
@@ -1090,7 +1087,6 @@ static u8_t lwip_ioctl_internal_SIOCSIFNAME(struct ifreq *ifr)
 #endif
 
     netif = netif_find(ifr->ifr_name);
-
     if (netif == NULL) {
         return ENODEV;
     } else if (netif->link_layer_type == LOOPBACK_IF) {
@@ -1165,7 +1161,6 @@ static u8_t lwip_ioctl_internal_SIOCGIFMTU(struct ifreq *ifr)
 
     /* get netif hw addr */
     netif = netif_find(ifr->ifr_name);
-
     if (netif == NULL) {
         return ENODEV;
     } else {