From mboxrd@z Thu Jan 1 00:00:00 1970 From: fs.rajat@gmail.com (Rajat Sharma) Date: Wed, 30 May 2012 11:41:45 -0700 Subject: [RFC]confusions about 'struct' define Message-ID: <2084175388863451439@unknownmsgid> To: kernelnewbies@lists.kernelnewbies.org List-Id: kernelnewbies.lists.kernelnewbies.org This might be the case of cyclic dependency where header files defining these structures are also including this .h file. -Rajat From: harryxiyou Sent: 30-05-2012 23:08 To: Gaurav Jain Cc: Greg-Kroah-Hartman; Harry Wei; kernelnewbies at kernelnewbies.org Subject: Re: [RFC]confusions about 'struct' define On Thu, May 31, 2012 at 1:20 AM, Gaurav Jain wrote: Hi Gaurav, > Those are forward declarations as they are being used in defining struct > bus_attribute. It's nothing special about GNU-C. That's the case for ANSI-C > too. Pretty standard. > Hmmm.., that is to say, they may be used before definitions in this file or defined in other files like 'struct iommu_ops;' field (Actually, i can not find this field's definition in this file). However, if it has been defined in other header files, we need not declare here, right? -- Thanks Harry Wei _______________________________________________ Kernelnewbies mailing list Kernelnewbies at kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies