PATCH 23/10]Optimize the upload speed for PPP connection.

[fangxiaozhi 00110321]

From: fangxiaozhi <huananhu@xxxxxxxxxx>
1. This patch is based on the kernel of 2.6.32-rc4 
2. In this patch, we enlarge the out buffer size to optimize the upload speed for the ppp connection. Then it can support the upload of HSUPA data cards.
Signed-off-by: fangxiaozhi <huananhu@xxxxxxxxxx>
-----------------------------------------------------------------------------------------
--- a/drivers/net/ppp_async.c	2009-10-12 05:43:56.000000000 +0800
+++ b/drivers/net/ppp_async.c	2009-10-15 16:29:56.000000000 +0800
@@ -36,7 +36,7 @@
 
 #define PPP_VERSION	"2.4.2"
 
-#define OBUFSIZE	256
+#define OBUFSIZE	2048
 
 /* Structure for storing local state. */
 struct asyncppp {

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