doc: notify ethdev callback process API change
authorBernard Iremonger <bernard.iremonger@intel.com>
Wed, 12 Jul 2017 09:25:01 +0000 (10:25 +0100)
committerThomas Monjalon <thomas@monjalon.net>
Fri, 21 Jul 2017 15:51:55 +0000 (18:51 +0300)
The _rte_eth_dev_callback_process function has been modified.
The return value has been changed form void to int and an
extra parameter "void *ret_param" has been added.

Signed-off-by: Bernard Iremonger <bernard.iremonger@intel.com>

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