From: Gavin Shan Date: Wed, 27 Apr 2016 01:14:50 +0000 (+1000) Subject: powerpc/eeh: Don't report error in eeh_pe_reset_and_recover() X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=affeb0f2d3a9af419ad7ef4ac782e1540b2f7b28;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git 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 Reviewed-by: Russell Currey Signed-off-by: Michael Ellerman --- 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) {