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From: Felix Fietkau <nbd@openwrt.org>
To: linux-wireless@vger.kernel.org
Cc: "John W. Linville" <linville@tuxdriver.com>,
	Johannes Berg <johannes@sipsolutions.net>
Subject: [PATCH] mac80211: fix BUILD_BUG_ON() caused by misalignment on arm
Date: Mon, 03 Nov 2008 21:05:01 +0100	[thread overview]
Message-ID: <490F596D.9010307@openwrt.org> (raw)

On ARM alignment is done slightly different from other architectures.
struct ieee80211_tx_rate is aligned to word size, even though it only has 3
single-byte members, which triggers the BUILD_BUG_ON in
ieee80211_tx_info_clear_status

This patch marks the struct ieee80211_tx_rate as packed, so that ARM
behaves like the other architectures.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -299,7 +299,7 @@ struct ieee80211_tx_rate {
 	s8 idx;
 	u8 count;
 	u8 flags;
-};
+} __attribute__((packed));
 
 /**
  * struct ieee80211_tx_info - skb transmit information

                 reply	other threads:[~2008-11-03 20:05 UTC|newest]

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