From 81542331cb1827650f3abd69375d964d0ce2d050 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Thu, 1 Mar 2018 14:46:34 +0100 Subject: mac80211: reorder patches putting backports first MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Rafał Miłecki --- ...und-IEEE80211_TX_STATUS_HEADROOM-up-to-mu.patch | 26 ++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 package/kernel/mac80211/patches/318-v4.17-mac80211-round-IEEE80211_TX_STATUS_HEADROOM-up-to-mu.patch (limited to 'package/kernel/mac80211/patches/318-v4.17-mac80211-round-IEEE80211_TX_STATUS_HEADROOM-up-to-mu.patch') diff --git a/package/kernel/mac80211/patches/318-v4.17-mac80211-round-IEEE80211_TX_STATUS_HEADROOM-up-to-mu.patch b/package/kernel/mac80211/patches/318-v4.17-mac80211-round-IEEE80211_TX_STATUS_HEADROOM-up-to-mu.patch new file mode 100644 index 0000000000..e955cb3a25 --- /dev/null +++ b/package/kernel/mac80211/patches/318-v4.17-mac80211-round-IEEE80211_TX_STATUS_HEADROOM-up-to-mu.patch @@ -0,0 +1,26 @@ +From: Felix Fietkau +Date: Fri, 9 Feb 2018 19:46:54 +0100 +Subject: [PATCH] mac80211: round IEEE80211_TX_STATUS_HEADROOM up to multiple + of 4 + +This ensures that mac80211 allocated management frames are properly +aligned, which makes copying them more efficient. +For instance, mt76 uses iowrite32_copy to copy beacon frames to beacon +template memory on the chip. +Misaligned 32-bit accesses cause CPU exceptions on MIPS and should be +avoided. + +Signed-off-by: Felix Fietkau +--- + +--- a/include/net/mac80211.h ++++ b/include/net/mac80211.h +@@ -4145,7 +4145,7 @@ void ieee80211_sta_uapsd_trigger(struct + * The TX headroom reserved by mac80211 for its own tx_status functions. + * This is enough for the radiotap header. + */ +-#define IEEE80211_TX_STATUS_HEADROOM 14 ++#define IEEE80211_TX_STATUS_HEADROOM ALIGN(14, 4) + + /** + * ieee80211_sta_set_buffered - inform mac80211 about driver-buffered frames -- cgit v1.2.3