linux-kernel - [PATCH] vfio/qat: add PCI

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Date: Tue, 28 May 2024 14:04:55 +0200
From: Arnd Bergmann <arnd@...nel.org>
To: Xin Zeng <xin.zeng@...el.com>,
	Giovanni Cabiddu <giovanni.cabiddu@...el.com>,
	Alex Williamson <alex.williamson@...hat.com>,
	Kevin Tian <kevin.tian@...el.com>,
	Yahui Cao <yahui.cao@...el.com>
Cc: Arnd Bergmann <arnd@...db.de>,
	Jason Gunthorpe <jgg@...pe.ca>,
	Yishai Hadas <yishaih@...dia.com>,
	Shameer Kolothum <shameerali.kolothum.thodi@...wei.com>,
	kvm@...r.kernel.org,
	qat-linux@...el.com,
	linux-kernel@...r.kernel.org
Subject: [PATCH] vfio/qat: add PCI_IOV dependency

From: Arnd Bergmann <arnd@...db.de>

The newly added driver depends on the crypto driver, but it uses exported
symbols that are only available when IOV is also turned on:

x86_64-linux-ld: drivers/vfio/pci/qat/main.o: in function `qat_vf_pci_open_device':
main.c:(.text+0xd7): undefined reference to `qat_vfmig_open'
x86_64-linux-ld: drivers/vfio/pci/qat/main.o: in function `qat_vf_pci_release_dev':
main.c:(.text+0x122): undefined reference to `qat_vfmig_cleanup'
x86_64-linux-ld: main.c:(.text+0x12d): undefined reference to `qat_vfmig_destroy'
x86_64-linux-ld: drivers/vfio/pci/qat/main.o: in function `qat_vf_resume_write':
main.c:(.text+0x308): undefined reference to `qat_vfmig_load_setup'
x86_64-linux-ld: drivers/vfio/pci/qat/main.o: in function `qat_vf_save_device_data':
main.c:(.text+0x64c): undefined reference to `qat_vfmig_save_state'
x86_64-linux-ld: main.c:(.text+0x677): undefined reference to `qat_vfmig_save_setup'
x86_64-linux-ld: drivers/vfio/pci/qat/main.o: in function `qat_vf_pci_aer_reset_done':
main.c:(.text+0x82d): undefined reference to `qat_vfmig_reset'
x86_64-linux-ld: drivers/vfio/pci/qat/main.o: in function `qat_vf_pci_close_device':
main.c:(.text+0x862): undefined reference to `qat_vfmig_close'
x86_64-linux-ld: drivers/vfio/pci/qat/main.o: in function `qat_vf_pci_set_device_state':
main.c:(.text+0x9af): undefined reference to `qat_vfmig_suspend'
x86_64-linux-ld: main.c:(.text+0xa14): undefined reference to `qat_vfmig_save_state'
x86_64-linux-ld: main.c:(.text+0xb37): undefined reference to `qat_vfmig_resume'
x86_64-linux-ld: main.c:(.text+0xbc7): undefined reference to `qat_vfmig_load_state'

Add this as a second dependency.

Fixes: bb208810b1ab ("vfio/qat: Add vfio_pci driver for Intel QAT SR-IOV VF devices")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/vfio/pci/qat/Kconfig | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/vfio/pci/qat/Kconfig b/drivers/vfio/pci/qat/Kconfig
index bf52cfa4b595..fae9d6cb8ccb 100644
--- a/drivers/vfio/pci/qat/Kconfig
+++ b/drivers/vfio/pci/qat/Kconfig
@@ -1,8 +1,9 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config QAT_VFIO_PCI
 	tristate "VFIO support for QAT VF PCI devices"
-	select VFIO_PCI_CORE
 	depends on CRYPTO_DEV_QAT_4XXX
+	depends on PCI_IOV
+	select VFIO_PCI_CORE
 	help
 	  This provides migration support for Intel(R) QAT Virtual Function
 	  using the VFIO framework.
-- 
2.39.2