On 01/30/2013 12:57 AM, Johannes Berg wrote:

On Tue, 2013-01-29 at 17:11 -0700, Stephen Warren wrote:

quoted

From: Stephen Warren <redacted>

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?

I'm using gcc-4.5.3 for ARM. I checked with gcc-4.6.3 and gcc-4.7.2 and
indeed I don't see the warning there.