[lwip-devel] [bug #46594] Useless condition judegement

[April M]

URL:
  <http://savannah.nongnu.org/bugs/?46594>

                 Summary: Useless condition judegement
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: april_m
            Submitted on: Thu Dec  3 05:24:37 2015
                Category: Network drivers
                Severity: 3 - Normal
              Item Group: Change Request
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: 
            lwIP version: git head

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Details:

In netif.c netif_loop_outpu() Line 725
if (((netif->loop_cnt_current + clen) < netif->loop_cnt_current) ||

Since netif->loop_cnt_current is u16_t and clen is u8_t,
(netif->loop_cnt_current + clen) will always be larger than or equal to
netif->loop_cnt_current, which makes the condition judegement uselsss for it
will always return false.




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