From: John Crispin <john@openwrt.org>
Date: Sun, 30 Mar 2014 14:01:21 +0000 (+0000)
Subject: lantiq: fix ptm crash under load
X-Git-Tag: reboot~7572
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=aa1118c79b51575c7963c1139d484de5a21a63c1;p=openwrt%2Fstaging%2Fxback.git

lantiq: fix ptm crash under load

https://dev.openwrt.org/ticket/14581

Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 40335
---

diff --git a/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_vdsl.c b/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_vdsl.c
index 745eb03321..1b9b710bfb 100644
--- a/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_vdsl.c
+++ b/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_vdsl.c
@@ -256,8 +256,8 @@ static int ptm_napi_poll(struct napi_struct *napi, int budget)
     //  clear interrupt
     IFX_REG_W32_MASK(0, 1, MBOX_IGU1_ISRC);
     //  no more traffic
-    if ( WAN_RX_DESC_BASE[g_ptm_priv_data.itf[0].rx_desc_pos].own ) {   //  if PP32 hold descriptor
-        napi_complete(napi);
+    if (work_done < budget) {
+	napi_complete(napi);
         IFX_REG_W32_MASK(0, 1, MBOX_IGU1_IER);
         return work_done;
     }