[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20210405085026.521312981@linuxfoundation.org>
Date: Mon, 5 Apr 2021 10:54:19 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, kernel test robot <lkp@...el.com>,
Jason Gunthorpe <jgg@...dia.com>,
Alex Williamson <alex.williamson@...hat.com>
Subject: [PATCH 5.4 55/74] vfio/nvlink: Add missing SPAPR_TCE_IOMMU depends
From: Jason Gunthorpe <jgg@...dia.com>
commit e0146a108ce4d2c22b9510fd12268e3ee72a0161 upstream.
Compiling the nvlink stuff relies on the SPAPR_TCE_IOMMU otherwise there
are compile errors:
drivers/vfio/pci/vfio_pci_nvlink2.c:101:10: error: implicit declaration of function 'mm_iommu_put' [-Werror,-Wimplicit-function-declaration]
ret = mm_iommu_put(data->mm, data->mem);
As PPC only defines these functions when the config is set.
Previously this wasn't a problem by chance as SPAPR_TCE_IOMMU was the only
IOMMU that could have satisfied IOMMU_API on POWERNV.
Fixes: 179209fa1270 ("vfio: IOMMU_API should be selected")
Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Jason Gunthorpe <jgg@...dia.com>
Message-Id: <0-v1-83dba9768fc3+419-vfio_nvlink2_kconfig_jgg@...dia.com>
Signed-off-by: Alex Williamson <alex.williamson@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/vfio/pci/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/vfio/pci/Kconfig
+++ b/drivers/vfio/pci/Kconfig
@@ -42,6 +42,6 @@ config VFIO_PCI_IGD
config VFIO_PCI_NVLINK2
def_bool y
- depends on VFIO_PCI && PPC_POWERNV
+ depends on VFIO_PCI && PPC_POWERNV && SPAPR_TCE_IOMMU
help
VFIO PCI support for P9 Witherspoon machine with NVIDIA V100 GPUs
Powered by blists - more mailing lists