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From: Thomas Monjalon <thomas.monjalon@6wind.com>
To: xuelin.shi@freescale.com
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH] librte_lpm: define tbl entry reversely for big endian
Date: Mon, 23 Mar 2015 15:03:55 +0100
Message-ID: <1898378.inXpMq60NG@xps13> (raw)
In-Reply-To: <20150309140237.GB5848@bricha3-MOBL3>

2015-03-09 14:02, Bruce Richardson:
> On Wed, Mar 04, 2015 at 02:34:12PM +0800, xuelin.shi@freescale.com wrote:
> > From: Xuelin Shi <xuelin.shi@freescale.com>
> > 
> > This module uses type conversion between struct and int.
> > Also truncation and comparison is used with this int.
> > It is not safe for different endian arch.
> > 
> > Add ifdef for big endian struct to fix this issue.
> > 
> > Signed-off-by: Xuelin Shi <xuelin.shi@freescale.com>
> 
> Get an error compiling this up (using clang on FreeBSD).
> 
>   CC rte_lpm.o
>   In file included from /usr/home/bruce/dpdk.org/lib/librte_lpm/rte_lpm.c:57:
>   /usr/home/bruce/dpdk.org/lib/librte_lpm/rte_lpm.h:99:5: fatal error: 'RTE_BYTE_ORDER' is not defined, evaluates to 0 [-Wundef]
> #if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
>       ^
>       1 error generated.
> 
> Adding "#include <rte_byteorder.h>" should fix the issue.

Please Xuelin, could you submit a v2?
Thanks

> Existing unit tests on IA (little endian) pass fine there-after, but I think for
> this patch it would be good to have an ack from someone who can validate on
> a big endian system, since this is what this patch is meant to enable.
> 
> /Bruce
> 

  reply	other threads:[~2015-03-23 14:04 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-04  6:34 xuelin.shi
2015-03-04 10:48 ` Bruce Richardson
2015-03-05  2:12   ` Xuelin Shi
2015-03-06 11:13     ` Bruce Richardson
2015-03-09  1:54       ` Xuelin Shi
2015-03-09  9:12         ` Mcnamara, John
2015-03-09  9:35           ` Xuelin Shi
2015-03-09 14:04           ` Thomas Monjalon
2015-03-09 14:02 ` Bruce Richardson
2015-03-23 14:03   ` Thomas Monjalon [this message]
2015-03-24  7:28     ` Xuelin Shi

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