[lwip-devel] [bug #56756] LWIP old_level is undefined

[JCo]

URL:
  <https://savannah.nongnu.org/bugs/?56756>

                 Summary: LWIP old_level is undefined
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: ernsten
            Submitted on: Wed 14 Aug 2019 07:23:17 AM UTC
                Category: IPv4
                Severity: 3 - Normal
              Item Group: Crash Error
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None
            lwIP version: Other

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Details:

Hello everybody,

I use LWIP 2.1.2 on a STM32 and would like to use SLIP_RX_FROM_ISR. To do that
I set SLIP_RX_FROM_ISR to 1 and SYS_LIGHTWEIGHT_PROT to 1. Now I can use
slipif_received_byte() from my serial rx interrupt and
slipif_process_rxqueue() in the main to get the data out of the buffer. 

However, when I set SYS_LIGHTWEIGHT_PROT to 1 i get the error:

"identifier sys_prot_t is undefined", thus I have defined it with: typedef
unsigned int sys_prot_t.

But now I get the error message:

"identifier old_level is undefined"

Did anybody had the same problem? Can anybody help? Any ideas?

I really appreciate any help.




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