> int sed_ioctl(struct opal_dev *dev, unsigned int cmd, unsigned long ptr)
> {
> + void *ioctl_ptr;
> + int ret = -ENOTTY;
> void __user *arg = (void __user *)ptr;
Can we use this opportunity to clean up the usual ioctl argument mess.
Id say pass the "void __user *argp" argument al
When CONFIG_KASAN is enabled, compilation fails:
block/sed-opal.c: In function 'sed_ioctl':
block/sed-opal.c:2447:1: error: the frame size of 2256 bytes is larger than
2048 bytes [-Werror=frame-larger-than=]
Moved all the ioctl structures off the stack and dynamically activate
using _IOC_SIZE()
