On Thu, May 17, 2018 at 04:23:45PM +0200, Johannes Thumshirn wrote: > > Agreed. Alternatively possibly call the driver's reset_preparei/done > > callbacks. > > Exactly, but as long as we can issue the reset via sysfs the test-case > is still valid.
I disagree the test case is valid. The test writes '0' to the pci-sysfs 'enable', but the driver also disables the pci device as part of resetting, which is a perfectly reasonable thing for a driver to do. If the timing of the test's loop happens to write '0' right after the driver disabled the device that it owns, a 'write error' on that sysfs write occurs, and blktests then incorrectly claims the test failed.
