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From: "Xie, Huawei" <huawei.xie@intel.com>
To: "De Lara Guarch, Pablo" <pablo.de.lara.guarch@intel.com>, "dev@dpdk.org"
 <dev@dpdk.org>
Thread-Topic: [PATCH v5] examples/vhost: fix strict aliasing error on gcc 4.4.7
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Date: Wed, 9 Dec 2015 14:33:03 +0000
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Subject: Re: [dpdk-dev] [PATCH v5] examples/vhost: fix strict aliasing error
 on gcc 4.4.7
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On 12/9/2015 10:27 PM, De Lara Guarch, Pablo wrote:=0A=
> From: "De Lara Guarch, Pablo" <pablo.de.lara.guarch@intel.com>=0A=
>=0A=
> Fixes following error on gcc 4.4.7:=0A=
>=0A=
> make: Entering directory `/tmp/dpdk-tmp/examples/vhost'=0A=
>   CC main.o=0A=
> cc1: warnings being treated as errors=0A=
> /tmp/dpdk-tmp/examples/vhost/main.c: In function =91new_device=92:=0A=
> /tmp/dpdk-tmp/x86_64-native-linuxapp-gcc/include/rte_ring.h:740: error:=
=0A=
>     dereferencing pointer =91mbuf.486=92 does break strict-aliasing rules=
=0A=
> /tmp/dpdk-tmp/examples/vhost/main.c:1503: note: initialized from here=0A=
> ...=0A=
> /tmp/dpdk-tmp/examples/vhost/main.c:1503: note: initialized from here=0A=
> /tmp/dpdk-tmp/x86_64-native-linuxapp-gcc/include/rte_ring.h:740: error:=
=0A=
>     dereferencing pointer =91({anonymous})=92 does break strict-aliasing =
rules=0A=
> /tmp/dpdk-tmp/examples/vhost/main.c:1804: note: initialized from here=0A=
> make[1]: *** [main.o] Error 1=0A=
>=0A=
> Fixes: d19533e8 ("examples/vhost: copy old vhost example")=0A=
>=0A=
> Reported-by: Qian Xu <qian.q.xu@intel.com>=0A=
> Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>=0A=
Acked-by: Huawei Xie <huawei.xie@intel.com>=0A=
=0A=