XDMA: Kernel module does not compile correctly for Linux Kernel versions >= 5.0

[byzantic]

When trying to make xdma on a system that has a Kernel version 5.0, the compile fails twice with error messages like:

xdma_drv_linux/xdma/cdev_ctrl.c: In function ‘char_ctrl_ioctl’:
xdma_drv_linux/xdma/cdev_ctrl.c:138:19: error: macro "access_ok" passed 3 arguments, but takes just 2
     _IOC_SIZE(cmd));
                   ^

I think this is because kernel 5.0 and onwards have dropped the first argument in the access_ok macro. So I think lines like:

		result = !access_ok(VERIFY_READ, (void __user *)arg,

should be changed to:

		result = !access_ok((void __user *)arg,

If I change the two offending lines in this way, make succeeds, as does the load_driver.sh script.

[lesjokolat]

I couldnt get it to work in Ubuntu LTS 18.04.2, i went back to older 65444 drivers and got kernel 5 working.

[X-Ryl669]

See #44 for a fix

[lesjokolat]

Byzantic can this be closed now?

[hmaarrfk]

Hello,

My name is Mark Harfouche. I am not affiliated with Xilinx in any way. Over the
years of using QDMA, I've been wanted better community organization.

I've created a fork of dma_ip_drivers which I intend to maintain and work with the
community at large to improve.

The fork can be found https://github.com/hmaarrfk/dma_ip_drivers

For now, I am stating the main goals of the repository in
hmaarrfk#2

If you are interested in working together, feel free to open an issue or PR to
my fork.

Best,

Mark