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      <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><SPAN 
      lang=EN-US style="FONT-SIZE: 9pt"><FONT face="Times New Roman"><SPAN 
      style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN>skb_reserve(skb, 
      2);</FONT></SPAN></P>
      <P>&nbsp;</P>
      <P class=MsoNormal 
      style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 36pt; mso-char-indent-count: 4.0"><SPAN 
      lang=EN-US style="FONT-SIZE: 9pt"><FONT face="Times New Roman">dec = 
      skb-&gt;data;</FONT></SPAN></P>
      <P>&nbsp;</P>
      <P class=MsoNormal 
      style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 36pt; mso-char-indent-count: 4.0"><SPAN 
      lang=EN-US style="FONT-SIZE: 9pt"><FONT 
      face="Times New Roman">//</FONT></SPAN><SPAN 
      style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: " times="" 
      new="">把数据包（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt"><FONT 
      face="Times New Roman">length</FONT></SPAN><SPAN 
      style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: " times="" 
      new="">长度）读到</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt"><FONT 
      face="Times New Roman">dec</FONT></SPAN><SPAN 
      style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: " times="" 
      new="">指向的内存中；</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt"></SPAN></P>
      <P>&nbsp;</P>
      <P class=MsoNormal 
      style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 36pt; mso-char-indent-count: 4.0"><SPAN 
      lang=EN-US style="FONT-SIZE: 9pt"><FONT face="Times New Roman">skb-&gt;dev 
      = dev;</FONT></SPAN></P>
      <P>&nbsp;</P>
      <P class=MsoNormal 
      style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 36pt; mso-char-indent-count: 4.0"><SPAN 
      lang=EN-US style="FONT-SIZE: 9pt"><FONT 
      face="Times New Roman">skb-&gt;protocol = eth_type_trans(skb, 
      dev);</FONT></SPAN></P>
      <P>&nbsp;</P>
      <P class=MsoNormal 
      style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 36pt; mso-char-indent-count: 4.0"><SPAN 
      lang=EN-US style="FONT-SIZE: 9pt"><FONT 
      face="Times New Roman">skb-&gt;ip_summed = 
      CHECKSUM_UNNECESSARY;</FONT></SPAN></P>
      <P>&nbsp;</P>
      <P class=MsoNormal 
      style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 36pt; mso-char-indent-count: 4.0"><SPAN 
      lang=EN-US style="FONT-SIZE: 9pt"><FONT 
      face="Times New Roman">netif_rx(skb);</FONT></SPAN></P>
      <P>&nbsp;</P>
      <P class=MsoNormal 
      style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 36pt; mso-char-indent-count: 4.0"><SPAN 
      lang=EN-US style="FONT-SIZE: 9pt"><FONT 
      face="Times New Roman">dev-&gt;last_rx = jiffies;</FONT></SPAN></P>
      <P>&nbsp;</P>
      <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><SPAN 
      lang=EN-US style="FONT-SIZE: 9pt"><FONT 
      face="Times New Roman">}</FONT></SPAN></P>
      <P>&nbsp;</P>
      <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><SPAN 
      lang=EN-US style="FONT-SIZE: 9pt"></SPAN></P>
      <P>&nbsp;</P>
      <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><SPAN 
      lang=EN-US style="FONT-SIZE: 9pt"><FONT 
      face="Times New Roman">if(</FONT></SPAN><SPAN 
      style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: " times="" 
      new="">出错</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt"><FONT 
      face="Times New Roman">)</FONT></SPAN></P>
      <P>&nbsp;</P>
      <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><SPAN 
      style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: " times="" 
      new="">　　　错误处理</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt"></SPAN></P>
      <P>&nbsp;</P>
      <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><SPAN 
      lang=EN-US style="FONT-SIZE: 9pt"></SPAN></P>
      <P>&nbsp;</P>
      <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><SPAN 
      style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: " times="" 
      new="">清除中断源；</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt"></SPAN></P>
      <P>&nbsp;</P>
      <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US 
      style="FONT-SIZE: 9pt"><FONT face="Times New Roman">}</FONT></SPAN></P>
      <P>&nbsp;</P>
      <P><FONT face="Times New Roman"></FONT>&nbsp;</P>
      <P>&nbsp;</P>
      <P><FONT face="Times New Roman"></FONT>&nbsp;</P>
      <P>&nbsp;</P>
      <P><FONT face="Times New Roman"></FONT>&nbsp;</P></TD></TR></TBODY></TABLE>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US></SPAN></P>
<P><FONT face="Times New Roman" size=3></FONT>&nbsp;</P>&nbsp;<BR><BR>
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