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: [dpdk-dev] [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.
prev parent 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 Nelio Laranjeiro
2017-04-06 11:06 ` Thomas Monjalon [this message]
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