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| author | Gavin Shan <gwshan@linux.vnet.ibm.com> | 2016-04-27 03:14:50 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-05-12 11:52:20 +0200 |
| commit | affeb0f2d3a9af419ad7ef4ac782e1540b2f7b28 (patch) | |
| tree | 6581b0dd725d8fed77ab0eb5add17c23e5a1a8ba /arch | |
| parent | Revert "powerpc/powernv: Exclude root bus in pnv_pci_reset_secondary_bus()" (diff) | |
| download | linux-affeb0f2d3a9af419ad7ef4ac782e1540b2f7b28.tar.xz linux-affeb0f2d3a9af419ad7ef4ac782e1540b2f7b28.zip | |
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/kernel/eeh_driver.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/eeh_driver.c b/arch/powerpc/kernel/eeh_driver.c index 618d13c26792..fe1dc638232b 100644 --- a/arch/powerpc/kernel/eeh_driver.c +++ b/arch/powerpc/kernel/eeh_driver.c @@ -564,9 +564,6 @@ int eeh_pe_reset_and_recover(struct eeh_pe *pe) /* Save states */ eeh_pe_dev_traverse(pe, eeh_dev_save_state, NULL); - /* Report error */ - eeh_pe_dev_traverse(pe, eeh_report_error, &result); - /* Issue reset */ ret = eeh_reset_pe(pe); if (ret) { |