[PATCH 2/2] Inform Huawei modem using ACCM 0xffffffff to trasmit package. Using my Huawei modem (EM770W) if set ACCM as 0x00000000, the RXJ- event will happend, and PPP link down, when IP package transmit for a while. After I set ACCM as 0xffffffff, the RXJ- event never happen, and the modem can work quite stable. I tested the modem at China Unicom networks.

[martin . xu]

From: Martin Xu <martin...@intel.com>

---
 gatchat/ppp_lcp.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/gatchat/ppp_lcp.c b/gatchat/ppp_lcp.c
index bc97257..181bc14 100644
--- a/gatchat/ppp_lcp.c
+++ b/gatchat/ppp_lcp.c
@@ -106,7 +106,7 @@ static void lcp_generate_config_options(struct lcp_data 
*lcp)
 static void lcp_reset_config_options(struct lcp_data *lcp)
 {
        lcp->req_options = REQ_OPTION_ACCM;
-       lcp->accm = 0;
+       lcp->accm = ~0U;
 
        lcp_generate_config_options(lcp);
 }
@@ -153,7 +153,7 @@ static void lcp_rca(struct pppcp_data *pppcp, const struct 
pppcp_packet *packet)
                 * The Configuration Option is used to inform the peer which 
control
                 * characters MUST remain mapped when the peer sends them.
                 */
-                       ppp_set_recv_accm(pppcp_get_ppp(pppcp), 0);
+                       ppp_set_recv_accm(pppcp_get_ppp(pppcp), ~0U);
                        break;
                default:
                        break;
-- 
1.7.2.2

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