Re: [dpdk-dev] [RFC PATCH 0/8] reduce header dependency on rte_mbuf.h

[Olivier MATZ <olivier.matz@6wind.com>]

Hi Bruce,

On 04/23/2015 03:03 PM, Bruce Richardson wrote:
> A large number of our header files and libraries are dependent on one another, 
> which can lead to problems with circular dependencies if trying to tie some of
> those libraries together, e.g. when prototyping with pktdev, or other schemes
> to get a common API for ethdev/rings/KNI. :-)
> 
> One small way to reduce issues when doing this is to eliminate #includes when
> they are not needed. While most includes in our headers are necessary, one 
> common pattern seen is where a library just takes mbufs as part of it's API,
> but does not de-reference those in the header file. In cases like this, it's
> not necessary to include the whole mbuf header file just to allow pointers to
> mbuf structures - a forward declaration of "struct rte_mbuf" will do.
> Including the mbuf header file, also triggers inclusion of the mempool headers
> which causes the inclusion of the ring headers amongst others.
> 
> Therefore, I propose changing the header files for our libraries to just use
> the forward declaration instead of the full header inclusion where possible.


Series
Acked-by: Olivier Matz <olivier.matz@6wind.com>