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openwrt-xburst/package/mac80211/patches/510-ath_use_gfp_dma.patch
nbd 5a99d27cc6 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 13:55:37 +00:00

18 lines
460 B
Diff

--- 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.