Re: [PATCH] IB/lmx4: silence GCC warning

From: Bart Van Assche
Date: Wed Feb 13 2013 - 08:50:29 EST

On 10/29/12 10:50, Paul Bolle wrote:
On Wed, 2012-10-10 at 09:23 +0200, Jack Morgenstein wrote:
You could use:

u16 uninitialized_var(vlan);


I guess we'd better just wait and see whether uninitialized_var()
survives before discussing your suggestion (see the thread starting at ).

Although this in the special QP data flow, I still prefer to avoid adding extra code (even setting
initial values at procedure entry). The line above will also do the job. "uninitialized_var"
is used elsewhere in the driver. See, for example, mlx4_ib_post_send() in the same file (qp.c).

(replying to an e-mail of a few months ago)

If there are no further objections I'd like to see this patch to go upstream. It fixes an annoying compiler warning and I don't think that this patch has a negative performance impact.



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