Here is the macro

https://github.com/HeisSpiter/hepunion/blob/master/fs/hepunion/hepunion.h#L393

Now this driver is at 2.6.18 kernel. I have to upgrade it to 3.8.3.

As I have said

"current" in kernel is a global macro, that always point to the "struct task_struct * " of the currently executing task (for details on task_struct, ref Robert Love, pg 24-27).

https://github.com/HeisSpiter/hepunion/blob/master/fs/hepunion/hepunion.h#L397

Now if you look at thse two lines-

current->fsuid = 0; \

current->fsgid = 0

Now task struct does not contain fsuid and fsgid, instead you have

struct cred containing fsuid and fsgid.

http://lxr.free-electrons.com/source/include/linux/cred.h#L102

So normal method is

struct cred *new1;
new1 =prepare_creds();
//make changes to any member of this structure
commit_creds(new1);

Now this above action I need to perform through a macro, in order to bring minimal changes to the driver.

Now, I have told everything. Can someone suggest something that might work.

Regards,

Saket Sinha

On Mon, Jul 15, 2013 at 5:07 PM, Mandeep Sandhu <mandeepsandhu.chd@gmail.com> wrote:

On Mon, Jul 15, 2013 at 4:50 PM, Saket Sinha <saket.sinha89@gmail.com> wrote:

Mandip:
Error is expected error or declaration at the end of input

Without looking at the code, it's difficult to comment further.

Can you attach a small compilable example which exhibits the error?

-mandeep

Anish:
that '\' should not be there first of all and even if I put it same error