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From: Thomas Monjalon <thomas.monjalon@6wind.com>
To: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
Cc: dev@dpdk.org, Ferruh Yigit <ferruh.yigit@intel.com>,
	Adrien Mazarguil <adrien.mazarguil@6wind.com>,
	Olivier Matz <olivier.matz@6wind.com>,
	stable@dpdk.org
Subject: Re: [PATCH] net/mlx5: fix an uninitialised variable
Date: Thu, 06 Apr 2017 13:06:30 +0200	[thread overview]
Message-ID: <2011142.xmeUg0X0rg@xps13> (raw)
In-Reply-To: <4b9e3b9e3328d43d5766a39391695e704298d04f.1491470160.git.nelio.laranjeiro@6wind.com>

2017-04-06 11:16, Nelio Laranjeiro:
> Since patch "mbuf: structure reorganization" the compiler complains
> 
>  .../drivers/net/mlx5/mlx5_rxtx.c: In function ‘mlx5_rx_burst’:
>  .../drivers/net/mlx5/mlx5_rxtx.c:2082:17: error: ‘len’ may be used
> uninitialized in this function [-Werror=maybe-uninitialized]
> 
> len is not initialised as it will be at the first segment of a received
> packet, but it remains hard for the compiler to determine it.
> 
> Fixes: 9964b965ad69 ("net/mlx5: re-add Rx scatter support")
> 
> Cc: stable@dpdk.org
> Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
> Acked-by: Olivier Matz <olivier.matz@6wind.com>

Applied, thanks

It is important to note that we see this error only after the mbuf rework
of 17.05, only with GCC, and only when debug is enabled.

      reply	other threads:[~2017-04-06 11:06 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-06  9:16 [PATCH] net/mlx5: fix an uninitialised variable Nelio Laranjeiro
2017-04-06 11:06 ` Thomas Monjalon [this message]

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