From dbcc2ec60fe15448e5dfe4153f7347ac82b4da73 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@woody.linux-foundation.org>
Date: Thu, 24 Jan 2008 13:35:10 -0800
Subject: [PATCH] Revert "mac80211: warn when receiving frames with unaligned
 data"

This reverts commit 81100eb80add328c4d2a377326f15aa0e7236398 for the
release, to avoid the unnecessary warning noise that is only really
relevant to wireless driver developers.

The warning will probably go right back in after I cut the release, but
at least we won't unnecessarily worry users.

Acked-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 net/mac80211/rx.c | 13 -------------
 1 file changed, 13 deletions(-)

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index a7263fc476bdd..00f908d9275e3 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1443,7 +1443,6 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
 	struct ieee80211_sub_if_data *prev = NULL;
 	struct sk_buff *skb_new;
 	u8 *bssid;
-	int hdrlen;
 
 	/*
 	 * key references and virtual interfaces are protected using RCU
@@ -1473,18 +1472,6 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
 	rx.fc = le16_to_cpu(hdr->frame_control);
 	type = rx.fc & IEEE80211_FCTL_FTYPE;
 
-	/*
-	 * Drivers are required to align the payload data to a four-byte
-	 * boundary, so the last two bits of the address where it starts
-	 * may not be set. The header is required to be directly before
-	 * the payload data, padding like atheros hardware adds which is
-	 * inbetween the 802.11 header and the payload is not supported,
-	 * the driver is required to move the 802.11 header further back
-	 * in that case.
-	 */
-	hdrlen = ieee80211_get_hdrlen(rx.fc);
-	WARN_ON_ONCE(((unsigned long)(skb->data + hdrlen)) & 3);
-
 	if (type == IEEE80211_FTYPE_DATA || type == IEEE80211_FTYPE_MGMT)
 		local->dot11ReceivedFragmentCount++;
 
-- 
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