openwrt-xburst/package/mac80211/patches/510-ath_use_gfp_dma.patch

--- a/drivers/net/wireless/ath/main.c
+++ b/drivers/net/wireless/ath/main.c
@@ -31,6 +31,14 @@ struct sk_buff *ath_rxbuf_alloc(struct a
 	u32 off;
 
 	/*
+	 * Enable GFP_DMA in order to avoid using DMA bounce buffers
+	 * on IXP4xx devices with more than 64M RAM
+	 */
+#ifdef CONFIG_ARCH_IXP4XX
+	gfp_mask |= GFP_DMA;
+#endif
+
+	/*
 	 * Cache-line-align.  This is important (for the
 	 * 5210 at least) as not doing so causes bogus data
 	 * in rx'd frames.
ath: use GFP_DMA for rx buffer allocations to fix allocation errors on ixp4xx devices with more than 64 MB RAM git-svn-id: svn://svn.openwrt.org/openwrt/trunk@18433 3c298f89-4303-0410-b956-a3cf2f4a3e73 2009-11-16 02:44:39 +02:00			`--- a/drivers/net/wireless/ath/main.c`
			`+++ b/drivers/net/wireless/ath/main.c`
ath: only use GFP_DMA on ixp4xx git-svn-id: svn://svn.openwrt.org/openwrt/trunk@18525 3c298f89-4303-0410-b956-a3cf2f4a3e73 2009-11-24 15:55:37 +02:00			`@@ -31,6 +31,14 @@ struct sk_buff *ath_rxbuf_alloc(struct a`
			`u32 off;`

			`/*`
			`+ * Enable GFP_DMA in order to avoid using DMA bounce buffers`
			`+ * on IXP4xx devices with more than 64M RAM`
			`+ */`
			`+#ifdef CONFIG_ARCH_IXP4XX`
			`+ gfp_mask \|= GFP_DMA;`
			`+#endif`
			`+`
			`+ /*`
			`* Cache-line-align. This is important (for the`
			`* 5210 at least) as not doing so causes bogus data`
			`* in rx'd frames.`