Re: [PATCH] nl80211: avoid "wdev_id may be used uninitialized"

[Johannes Berg]

On Tue, 2013-01-29 at 17:11 -0700, Stephen Warren wrote:
> From: Stephen Warren <swarren@xxxxxxxxxx>
> 
> Silence the following:
> net/wireless/nl80211.c: In function '__cfg80211_wdev_from_attrs.clone.119':
> net/wireless/nl80211.c:57:6: warning: 'wdev_id' may be used uninitialized in this function
> 
> ... by always initializing wdev_id to zero. I assume that wiphy_idx and
> ifidx are set to -1 for similar reasons, so this change simply propagates
> the same workaround.
> 
> In practice, this warning is false, since wdev_id is both set and used
> under the condition if (have_wdev_id). However, at least my compiler
> can't be coerced into realizing this; almost any code between the if
> blocks that set and use the variable causes this warning.

I don't see this warning? What compiler are you using?

johannes

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