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Date: Thu, 5 Sep 2019 15:59:21 +0800
From: Liu Yi L <yi.l.liu@...el.com>
To: alex.williamson@...hat.com, kwankhede@...dia.com
Cc: kevin.tian@...el.com, baolu.lu@...ux.intel.com, yi.l.liu@...el.com,
yi.y.sun@...el.com, joro@...tes.org, linux-kernel@...r.kernel.org,
kvm@...r.kernel.org, yan.y.zhao@...el.com, shaopeng.he@...el.com,
chenbo.xia@...el.com, jun.j.tian@...el.com
Subject: [PATCH v2 04/13] vfio_pci: make common functions be extern
This patch makes the common functions (module agnostic functions) in
vfio_pci.c to extern. So that such functions could be moved to a common
source file.
*) vfio_pci_set_vga_decode
*) vfio_pci_enable
*) vfio_pci_disable
*) vfio_pci_ioctl
*) vfio_pci_read
*) vfio_pci_write
*) vfio_pci_mmap
*) vfio_pci_request
*) vfio_pci_fill_ids
*) vfio_pci_reflck_attach
*) vfio_pci_reflck_put
*) vfio_pci_probe_power_state
Cc: Kevin Tian <kevin.tian@...el.com>
Cc: Lu Baolu <baolu.lu@...ux.intel.com>
Signed-off-by: Liu Yi L <yi.l.liu@...el.com>
---
drivers/vfio/pci/vfio_pci.c | 30 +++++++++++++-----------------
drivers/vfio/pci/vfio_pci_private.h | 15 +++++++++++++++
2 files changed, 28 insertions(+), 17 deletions(-)
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c
index 722c041..90a44a7 100644
--- a/drivers/vfio/pci/vfio_pci.c
+++ b/drivers/vfio/pci/vfio_pci.c
@@ -62,7 +62,7 @@ MODULE_PARM_DESC(disable_idle_d3,
* has no way to get to it and routing can be disabled externally at the
* bridge.
*/
-static unsigned int vfio_pci_set_vga_decode(void *opaque, bool single_vga)
+unsigned int vfio_pci_set_vga_decode(void *opaque, bool single_vga)
{
struct vfio_pci_device *vdev = opaque;
struct pci_dev *tmp = NULL, *pdev = vdev->pdev;
@@ -163,7 +163,6 @@ static void vfio_pci_probe_mmaps(struct vfio_pci_device *vdev)
}
static void vfio_pci_try_bus_reset(struct vfio_pci_device *vdev);
-static void vfio_pci_disable(struct vfio_pci_device *vdev);
/*
* INTx masking requires the ability to disable INTx signaling via PCI_COMMAND
@@ -194,7 +193,7 @@ static bool vfio_pci_nointx(struct pci_dev *pdev)
return false;
}
-static void vfio_pci_probe_power_state(struct vfio_pci_device *vdev)
+void vfio_pci_probe_power_state(struct vfio_pci_device *vdev)
{
struct pci_dev *pdev = vdev->pdev;
u16 pmcsr;
@@ -245,7 +244,7 @@ int vfio_pci_set_power_state(struct vfio_pci_device *vdev, pci_power_t state)
return ret;
}
-static int vfio_pci_enable(struct vfio_pci_device *vdev)
+int vfio_pci_enable(struct vfio_pci_device *vdev)
{
struct pci_dev *pdev = vdev->pdev;
int ret;
@@ -352,7 +351,7 @@ static int vfio_pci_enable(struct vfio_pci_device *vdev)
return ret;
}
-static void vfio_pci_disable(struct vfio_pci_device *vdev)
+void vfio_pci_disable(struct vfio_pci_device *vdev)
{
struct pci_dev *pdev = vdev->pdev;
struct vfio_pci_dummy_resource *dummy_res, *tmp;
@@ -666,8 +665,8 @@ int vfio_pci_register_dev_region(struct vfio_pci_device *vdev,
return 0;
}
-static long vfio_pci_ioctl(void *device_data,
- unsigned int cmd, unsigned long arg)
+long vfio_pci_ioctl(void *device_data,
+ unsigned int cmd, unsigned long arg)
{
struct vfio_pci_device *vdev = device_data;
unsigned long minsz;
@@ -1152,7 +1151,7 @@ static ssize_t vfio_pci_rw(void *device_data, char __user *buf,
return -EINVAL;
}
-static ssize_t vfio_pci_read(void *device_data, char __user *buf,
+ssize_t vfio_pci_read(void *device_data, char __user *buf,
size_t count, loff_t *ppos)
{
if (!count)
@@ -1161,7 +1160,7 @@ static ssize_t vfio_pci_read(void *device_data, char __user *buf,
return vfio_pci_rw(device_data, buf, count, ppos, false);
}
-static ssize_t vfio_pci_write(void *device_data, const char __user *buf,
+ssize_t vfio_pci_write(void *device_data, const char __user *buf,
size_t count, loff_t *ppos)
{
if (!count)
@@ -1170,7 +1169,7 @@ static ssize_t vfio_pci_write(void *device_data, const char __user *buf,
return vfio_pci_rw(device_data, (char __user *)buf, count, ppos, true);
}
-static int vfio_pci_mmap(void *device_data, struct vm_area_struct *vma)
+int vfio_pci_mmap(void *device_data, struct vm_area_struct *vma)
{
struct vfio_pci_device *vdev = device_data;
struct pci_dev *pdev = vdev->pdev;
@@ -1232,7 +1231,7 @@ static int vfio_pci_mmap(void *device_data, struct vm_area_struct *vma)
req_len, vma->vm_page_prot);
}
-static void vfio_pci_request(void *device_data, unsigned int count)
+void vfio_pci_request(void *device_data, unsigned int count)
{
struct vfio_pci_device *vdev = device_data;
struct pci_dev *pdev = vdev->pdev;
@@ -1264,9 +1263,6 @@ static const struct vfio_device_ops vfio_pci_ops = {
.request = vfio_pci_request,
};
-static int vfio_pci_reflck_attach(struct vfio_pci_device *vdev);
-static void vfio_pci_reflck_put(struct vfio_pci_reflck *reflck);
-
static int vfio_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct vfio_pci_device *vdev;
@@ -1469,7 +1465,7 @@ static int vfio_pci_reflck_find(struct pci_dev *pdev, void *data)
return 0;
}
-static int vfio_pci_reflck_attach(struct vfio_pci_device *vdev)
+int vfio_pci_reflck_attach(struct vfio_pci_device *vdev)
{
bool slot = !pci_probe_reset_slot(vdev->pdev->slot);
@@ -1495,7 +1491,7 @@ static void vfio_pci_reflck_release(struct kref *kref)
mutex_unlock(&reflck_lock);
}
-static void vfio_pci_reflck_put(struct vfio_pci_reflck *reflck)
+void vfio_pci_reflck_put(struct vfio_pci_reflck *reflck)
{
kref_put_mutex(&reflck->kref, vfio_pci_reflck_release, &reflck_lock);
}
@@ -1619,7 +1615,7 @@ static void __exit vfio_pci_cleanup(void)
vfio_pci_uninit_perm_bits();
}
-static void __init vfio_pci_fill_ids(char *ids, struct pci_driver *driver)
+void __init vfio_pci_fill_ids(char *ids, struct pci_driver *driver)
{
char *p, *id;
int rc;
diff --git a/drivers/vfio/pci/vfio_pci_private.h b/drivers/vfio/pci/vfio_pci_private.h
index 68521d2..53d0385 100644
--- a/drivers/vfio/pci/vfio_pci_private.h
+++ b/drivers/vfio/pci/vfio_pci_private.h
@@ -182,6 +182,21 @@ extern int vfio_pci_register_dev_region(struct vfio_pci_device *vdev,
extern int vfio_pci_set_power_state(struct vfio_pci_device *vdev,
pci_power_t state);
+extern unsigned int vfio_pci_set_vga_decode(void *opaque, bool single_vga);
+extern int vfio_pci_enable(struct vfio_pci_device *vdev);
+extern void vfio_pci_disable(struct vfio_pci_device *vdev);
+extern long vfio_pci_ioctl(void *device_data,
+ unsigned int cmd, unsigned long arg);
+extern ssize_t vfio_pci_read(void *device_data, char __user *buf,
+ size_t count, loff_t *ppos);
+extern ssize_t vfio_pci_write(void *device_data, const char __user *buf,
+ size_t count, loff_t *ppos);
+extern int vfio_pci_mmap(void *device_data, struct vm_area_struct *vma);
+extern void vfio_pci_request(void *device_data, unsigned int count);
+extern void vfio_pci_fill_ids(char *ids, struct pci_driver *driver);
+extern int vfio_pci_reflck_attach(struct vfio_pci_device *vdev);
+extern void vfio_pci_reflck_put(struct vfio_pci_reflck *reflck);
+extern void vfio_pci_probe_power_state(struct vfio_pci_device *vdev);
#ifdef CONFIG_VFIO_PCI_IGD
extern int vfio_pci_igd_init(struct vfio_pci_device *vdev);
--
2.7.4
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