Cannot compile the driver on Ubuntu-18.04 about riffa

[jixi2018]

I updated the gcc version to 7.4.0, the previous error was gone, but the following compile error showed:(I listed the first one to minimize the message length)

/home/projects/riffa/driver/linux/riffa_driver.c: In function ‘fill_sg_buf’:
/home/projects/riffa/driver/linux/riffa_driver.c:447:59: error: passing argument 5 of ‘get_user_pages’ from incompatible pointer type [-Werror=incompatible-pointer-types]
num_pages = get_user_pages(udata, num_pages_reqd, 1, 0, pages, NULL);
^~~~~
In file included from ./include/linux/scatterlist.h:8:0,
from ./include/linux/dmapool.h:14,
from ./include/linux/pci.h:1334,
from /home/jinwen/projects/riffa/driver/linux/riffa_driver.c:52:
./include/linux/mm.h:1484:6: note: expected ‘struct vm_area_struct **’ but argument is of type ‘struct page **’
long get_user_pages(unsigned long start, unsigned long nr_pages,
^~~~~~~~~~~~~~
/home/projects/riffa/driver/linux/riffa_driver.c:447:15: error: too many arguments to function ‘get_user_pages’
num_pages = get_user_pages(udata, num_pages_reqd, 1, 0, pages, NULL);
^~~~~~~~~~~~~~
In file included from ./include/linux/scatterlist.h:8:0,
from ./include/linux/dmapool.h:14,
from ./include/linux/pci.h:1334,
from /home/projects/riffa/driver/linux/riffa_driver.c:52:
./include/linux/mm.h:1484:6: note: declared here
long get_user_pages(unsigned long start, unsigned long nr_pages,
^~~~~~~~~~~~~~

[marzoul]

Hi @jixi2018, your linux kernel is probably too recent. I made pull request #18 some time ago to fix this, please give it a try.

[jixi2018]

Thanks. Could you let me know how to get the code in the pull request #18 via command line? I am sort of new to git.....

[marzoul]

Hi @jixi2018, I think the simplest way is to switch to my small fork of Riffa that I made for that pull request. The URL is the following:
https://github.com/marzoul/riffa.git

[jixi2018]

Issue was resolved after following the changes in the pull request #18. Closing it.