On Fri, Mar 04, 2022 at 06:28:36PM +0100, Benjamin Tissoires wrote: > When we process an incoming HID report, it is common to have to account > for fields that are not aligned in the report. HID is using 2 helpers > hid_field_extract() and implement() to pick up any data at any offset > within the report. > > Export those 2 helpers in BPF programs so users can also rely on them. > The second net worth advantage of those helpers is that now we can > fetch data anywhere in the report without knowing at compile time the > location of it. The boundary checks are done in hid-bpf.c, to prevent > a memory leak. > > Signed-off-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx> Reviewed-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
