mt76: backport rx buffer allocation fix from r46409

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/branches/chaos_calmer@46412 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/kernel/mt76/patches/100-dma-fix-rx-buffer-allocation-size.patch b/package/kernel/mt76/patches/100-dma-fix-rx-buffer-allocation-size.patch
new file mode 100644 (file)
index 0000000..c29c9ba
--- /dev/null
+++ b/package/kernel/mt76/patches/100-dma-fix-rx-buffer-allocation-size.patch
@@ -0,0 +1,18 @@
+From: Felix Fietkau <nbd@openwrt.org>
+Date: Sat, 18 Jul 2015 17:51:24 +0200
+Subject: [PATCH] dma: fix rx buffer allocation size
+
+Signed-off-by: Felix Fietkau <nbd@openwrt.org>
+---
+
+--- a/dma.c
++++ b/dma.c
+@@ -158,7 +158,7 @@ mt76_dma_rx_fill(struct mt76_dev *dev, s
+       while (q->queued < q->ndesc - 1) {
+               int offset = mt76_rx_buf_offset(dev);
+ 
+-              buf = kzalloc(len, GFP_ATOMIC);
++              buf = kzalloc(q->buf_size, GFP_ATOMIC);
+               if (!buf)
+                       break;
+