]> git.karo-electronics.de Git - karo-tx-linux.git/commit
powerpc/eeh: Don't report error in eeh_pe_reset_and_recover()
authorGavin Shan <gwshan@linux.vnet.ibm.com>
Wed, 27 Apr 2016 01:14:50 +0000 (11:14 +1000)
committerMichael Ellerman <mpe@ellerman.id.au>
Thu, 12 May 2016 09:52:20 +0000 (19:52 +1000)
commitaffeb0f2d3a9af419ad7ef4ac782e1540b2f7b28
tree6581b0dd725d8fed77ab0eb5add17c23e5a1a8ba
parent848912e547c4569445a61203a7df402646a88c25
powerpc/eeh: Don't report error in eeh_pe_reset_and_recover()

The function eeh_pe_reset_and_recover() is used to recover EEH
error when the passthrough device are transferred to guest and
backwards, meaning the device's driver is vfio-pci or none.
When the driver is vfio-pci that provides error_detected() error
handler only, the handler simply stops the guest and it's not
expected behaviour. On the other hand, no error handlers will
be called if we don't have a bound driver.

This ignores the error handler in eeh_pe_reset_and_recover()
that reports the error to device driver to avoid the exceptional
behaviour.

Fixes: 5cfb20b9 ("powerpc/eeh: Emulate EEH recovery for VFIO devices")
Cc: stable@vger.kernel.org #v3.18+
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Reviewed-by: Russell Currey <ruscur@russell.cc>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/kernel/eeh_driver.c