Linux Kernels

s390/virtio: remove unused header file kvm_virtio.h

This change “s390/virtio: remove unused header file kvm_virtio.h” (commit a401917) in Linux kernel is authored by Christian Borntraeger <borntraeger [at] de.ibm.com> on Thu Nov 9 08:57:47 2017 +0100.

Description of "s390/virtio: remove unused header file kvm_virtio.h"

The change “s390/virtio: remove unused header file kvm_virtio.h” introduces changes as follows.

s390/virtio: remove unused header file kvm_virtio.h

With commit 7fb2b2d51244 ("s390/virtio: remove the old KVM virtio
transport") the pre-ccw virtio transport for s390 was removed. To
complete the removal the uapi header file that contains the related data
structures must also be removed.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>

Linux kernel releases containing commit a401917

The Linux kernel releases containing this commit are as follows.

Linux kernel code changes from "s390/virtio: remove unused header file kvm_virtio.h"

There are 65 lines of Linux source code added/deleted in this change. Code changes to Linux kernel are as follows.

 arch/s390/include/uapi/asm/kvm_virtio.h | 64 -------------------------
 arch/s390/kernel/setup.c                |  1 -
 2 files changed, 65 deletions(-)
 delete mode 100644 arch/s390/include/uapi/asm/kvm_virtio.h
 
diff --git a/arch/s390/include/uapi/asm/kvm_virtio.h b/arch/s390/include/uapi/asm/kvm_virtio.h
deleted file mode 100644
index 44a438ca9e72..000000000000
--- a/arch/s390/include/uapi/asm/kvm_virtio.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * definition for virtio for kvm on s390
- *
- * Copyright IBM Corp. 2008
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License (version 2 only)
- * as published by the Free Software Foundation.
- *
- *    Author(s): Christian Borntraeger <borntraeger@de.ibm.com>
- */
-
-#ifndef __KVM_S390_VIRTIO_H
-#define __KVM_S390_VIRTIO_H
-
-#include <linux/types.h>
-
-struct kvm_device_desc {
-	/* The device type: console, network, disk etc.  Type 0 terminates. */
-	__u8 type;
-	/* The number of virtqueues (first in config array) */
-	__u8 num_vq;
-	/*
-	 * The number of bytes of feature bits.  Multiply by 2: one for host
-	 * features and one for guest acknowledgements.
-	 */
-	__u8 feature_len;
-	/* The number of bytes of the config array after virtqueues. */
-	__u8 config_len;
-	/* A status byte, written by the Guest. */
-	__u8 status;
-	__u8 config[0];
-};
-
-/*
- * This is how we expect the device configuration field for a virtqueue
- * to be laid out in config space.
- */
-struct kvm_vqconfig {
-	/* The token returned with an interrupt. Set by the guest */
-	__u64 token;
-	/* The address of the virtio ring */
-	__u64 address;
-	/* The number of entries in the virtio_ring */
-	__u16 num;
-
-};
-
-#define KVM_S390_VIRTIO_NOTIFY		0
-#define KVM_S390_VIRTIO_RESET		1
-#define KVM_S390_VIRTIO_SET_STATUS	2
-
-/* The alignment to use between consumer and producer parts of vring.
- * This is pagesize for historical reasons. */
-#define KVM_S390_VIRTIO_RING_ALIGN	4096
-
-
-/* These values are supposed to be in ext_params on an interrupt */
-#define VIRTIO_PARAM_MASK		0xff
-#define VIRTIO_PARAM_VRING_INTERRUPT	0x0
-#define VIRTIO_PARAM_CONFIG_CHANGED	0x1
-#define VIRTIO_PARAM_DEV_ADD		0x2
-
-#endif
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index b0943ef8cc31..b5baaef11f9b 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -61,7 +61,6 @@
 #include <asm/ptrace.h>
 #include <asm/sections.h>
 #include <asm/ebcdic.h>
-#include <asm/kvm_virtio.h>
 #include <asm/diag.h>
 #include <asm/os_info.h>
 #include <asm/sclp.h>

The commit for this change in Linux stable tree is a401917 (patch).

Last modified: 2020/01/11 06:38