add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/virtio/virtio_pci_legacy.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * Virtio PCI driver - legacy device support
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  *
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@@ -11,10 +12,6 @@
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  *  Anthony Liguori  <aliguori@us.ibm.com>
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  *  Rusty Russell <rusty@rustcorp.com.au>
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  *  Michael S. Tsirkin <mst@redhat.com>
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- *
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- * This work is licensed under the terms of the GNU GPL, version 2 or later.
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- * See the COPYING file in the top-level directory.
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- *
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  */
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 #include "virtio_pci_common.h"
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@@ -52,7 +49,8 @@
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 {
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 	struct virtio_pci_device *vp_dev = to_vp_device(vdev);
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 	void __iomem *ioaddr = vp_dev->ioaddr +
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-				VIRTIO_PCI_CONFIG(vp_dev) + offset;
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+			VIRTIO_PCI_CONFIG_OFF(vp_dev->msix_enabled) +
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+			offset;
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 	u8 *ptr = buf;
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 	int i;
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@@ -67,7 +65,8 @@
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 {
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 	struct virtio_pci_device *vp_dev = to_vp_device(vdev);
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 	void __iomem *ioaddr = vp_dev->ioaddr +
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-				VIRTIO_PCI_CONFIG(vp_dev) + offset;
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+			VIRTIO_PCI_CONFIG_OFF(vp_dev->msix_enabled) +
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+			offset;
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 	const u8 *ptr = buf;
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 	int i;
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