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SubjectRe: [PATCH] compat_ioctl: introduce generic_compat_ioctl helper
On Saturday 20 October 2007, Christoph Hellwig wrote:
> At least for the unlocked_ioctl case this is not nessecary because
> the driver an simply set both the unlocked_ioctl and compat_ioctl
> handlers to the same function.  For the drivers not using unlocked_ioctl
> yet a function like this makes sense in theory, but I'd prefer to
> just switch them to ->unlocked_ioctl.

There is still the problem with s390 compat_ptr() conversion, a driver
using the same handler for both may interpret a pointer with the high
bit set as out of range.

Arnd <><
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