On Fri, 2008-11-07 at 12:19 +1100, Stephen Rothwell wrote:
> Hi all,
>
> An arm cam60_defconfig build of next-20081106 produces these errors:
>
> include/net/mac80211.h:405: error: size of array 'type name' is negative
> net/mac80211/main.c:957: error: size of array 'type name' is negative
>
> The first is
> BUILD_BUG_ON(
> offsetof(struct ieee80211_tx_info, status.ampdu_ack_len) != 23);
> in ieee80211_tx_info_clear_status().
> The second is
> BUILD_BUG_ON(sizeof(struct ieee80211_tx_info) > sizeof(skb->cb));
> in ieee80211_init().
>
> Maybe something to do with commit
> e6a9854b05c1a6af1308fe2b8c68f35abf28a3ee ("mac80211/drivers: rewrite the
> rate control API") from the wireless tree (which introduced the
> BUILD_BUG_ON in mac80211.h and modified struct ieee80211_tx_info
> somewhat).
Yeah, it does, a few people have observed it, we missed some special arm
alignment rules and our structures got too large for skb->cb on arm, a
patch is on its way. Thanks!
johannes
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