Re: [dpdk-dev] [PATCH v3 6/6] ena: fix for icc compiler

[Bruce Richardson <bruce.richardson@intel.com>]

On Tue, Jul 05, 2016 at 09:52:09AM +0100, Ferruh Yigit wrote:
> On 6/30/2016 4:04 PM, Jan Medala wrote:
> > Signed-off-by: Alexander Matushevsky <matua@amazon.com>
> > Signed-off-by: Jakub Palider <jpa@semihalf.com>
> > Signed-off-by: Jan Medala <jan@semihalf.com>
> 
> The compilation error to fix is [1], it may be good to add what to fix
> into commit log.
> 
> [1]
> == Build drivers/net/ena
>   CC ena_ethdev.o
> /tmp/dpdk_maintain/ena_v3/dpdk/drivers/net/ena/ena_ethdev.c(943): error
> #188: enumerated type mixed with another type
>         struct ena_com_create_io_ctx ctx = { 0 };
>                                              ^
> 
> /tmp/dpdk_maintain/ena_v3/dpdk/drivers/net/ena/ena_ethdev.c(1036): error
> #188: enumerated type mixed with another type
>         struct ena_com_create_io_ctx ctx = { 0 };
>                                              ^
> ...
> 
> > --- a/drivers/net/ena/ena_ethdev.c
> > +++ b/drivers/net/ena/ena_ethdev.c
> > @@ -940,7 +940,10 @@ static int ena_tx_queue_setup(struct rte_eth_dev *dev,
> >  			      __rte_unused unsigned int socket_id,
> >  			      __rte_unused const struct rte_eth_txconf *tx_conf)
> >  {
> > -	struct ena_com_create_io_ctx ctx = { 0 };
> > +	struct ena_com_create_io_ctx ctx =
> > +		/* policy set to _HOST just to satisfy icc compiler */
> > +		{ ENA_ADMIN_PLACEMENT_POLICY_HOST,
> > +		  ENA_COM_IO_QUEUE_DIRECTION_TX, 0, 0, 0, 0 };
> 
> Trailing "0" are not required, compiler will take care of them.
> 
Actually, given that this is a structure init and not an array, the trailing 
zeros are actually required, since we are not using C99 designated initializers.
Therefore, I'll leave the zeros in - if anyone wants to convert the format of
the initializers to c99 style later, and remove the trailing zeros then, it can
go as a separate patch. I'll just merge this fix in with patch 1 that introduces
the issue.

/Bruce