[dpdk-dev] [PATCH] ethdev: fix invalid length write on dev detach

[Thomas Monjalon]

31/07/2017 12:29, Gaetan Rivet:
> The name of a device is copied in a provided buffer within
> rte_eth_dev_detach(). The current sizeof is done on a pointer instead of
> the intended array usually pointed to.
> 
> The name field of an rte_device is not assured however to point an
> rte_devargs name field. The almost correct length to base this copy over
> is thus RTE_DEV_NAME_MAX_LEN.
> 
> Almost correct, because unfortunately this function does not allow the
> user to pass down a size parameter for the buffer it is meant to write.
> This API should be fixed, it is broken by design.

Yes we must discuss the future of this API function.

In the meantime, this limitation (size expectation) should be documented
in the doxygen comment. v2 please?