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xen/pci: Get rid of verbose_request and use dev_dbg() instead

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Information printed under verbose_request is clearly used for debugging
only. Remove it and use dev_dbg() instead.

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/1590719092-8578-1-git-send-email-boris.ostrovsky@oracle.com
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
This commit is contained in:
Boris Ostrovsky 2020-05-28 22:24:52 -04:00
parent 64b3eaf371
commit 4969a3a2cd
5 changed files with 31 additions and 67 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
drivers/pci/xen-pcifront.c
View File

@ -77,9 +77,6 @@ static inline void pcifront_init_sd(struct pcifront_sd *sd,
static DEFINE_SPINLOCK(pcifront_dev_lock);
static struct pcifront_device *pcifront_dev;
static int verbose_request;
module_param(verbose_request, int, 0644);
static int errno_to_pcibios_err(int errno)
{
switch (errno) {
@ -190,18 +187,16 @@ static int pcifront_bus_read(struct pci_bus *bus, unsigned int devfn,
struct pcifront_sd *sd = bus->sysdata;
struct pcifront_device *pdev = pcifront_get_pdev(sd);
if (verbose_request)
dev_info(&pdev->xdev->dev,
"read dev=%04x:%02x:%02x.%d - offset %x size %d\n",
pci_domain_nr(bus), bus->number, PCI_SLOT(devfn),
PCI_FUNC(devfn), where, size);
dev_dbg(&pdev->xdev->dev,
"read dev=%04x:%02x:%02x.%d - offset %x size %d\n",
pci_domain_nr(bus), bus->number, PCI_SLOT(devfn),
PCI_FUNC(devfn), where, size);
err = do_pci_op(pdev, &op);
if (likely(!err)) {
if (verbose_request)
dev_info(&pdev->xdev->dev, "read got back value %x\n",
op.value);
dev_dbg(&pdev->xdev->dev, "read got back value %x\n",
op.value);
*val = op.value;
} else if (err == -ENODEV) {
@ -229,12 +224,10 @@ static int pcifront_bus_write(struct pci_bus *bus, unsigned int devfn,
struct pcifront_sd *sd = bus->sysdata;
struct pcifront_device *pdev = pcifront_get_pdev(sd);
if (verbose_request)
dev_info(&pdev->xdev->dev,
"write dev=%04x:%02x:%02x.%d - "
"offset %x size %d val %x\n",
pci_domain_nr(bus), bus->number,
PCI_SLOT(devfn), PCI_FUNC(devfn), where, size, val);
dev_dbg(&pdev->xdev->dev,
"write dev=%04x:%02x:%02x.%d - offset %x size %d val %x\n",
pci_domain_nr(bus), bus->number,
PCI_SLOT(devfn), PCI_FUNC(devfn), where, size, val);
return errno_to_pcibios_err(do_pci_op(pdev, &op));
}

14
drivers/xen/xen-pciback/conf_space.c
View File

@ -156,9 +156,7 @@ int xen_pcibk_config_read(struct pci_dev *dev, int offset, int size,
* (as if device didn't respond) */
u32 value = 0, tmp_val;
if (unlikely(verbose_request))
dev_printk(KERN_DEBUG, &dev->dev, "read %d bytes at 0x%x\n",
size, offset);
dev_dbg(&dev->dev, "read %d bytes at 0x%x\n", size, offset);
if (!valid_request(offset, size)) {
err = XEN_PCI_ERR_invalid_offset;
@ -197,9 +195,7 @@ int xen_pcibk_config_read(struct pci_dev *dev, int offset, int size,
}
out:
if (unlikely(verbose_request))
dev_printk(KERN_DEBUG, &dev->dev,
"read %d bytes at 0x%x = %x\n", size, offset, value);
dev_dbg(&dev->dev, "read %d bytes at 0x%x = %x\n", size, offset, value);
*ret_val = value;
return xen_pcibios_err_to_errno(err);
@ -214,10 +210,8 @@ int xen_pcibk_config_write(struct pci_dev *dev, int offset, int size, u32 value)
u32 tmp_val;
int field_start, field_end;
if (unlikely(verbose_request))
dev_printk(KERN_DEBUG, &dev->dev,
"write request %d bytes at 0x%x = %x\n", size,
offset, value);
dev_dbg(&dev->dev, "write request %d bytes at 0x%x = %x\n",
size, offset, value);
if (!valid_request(offset, size))
return XEN_PCI_ERR_invalid_offset;

20
drivers/xen/xen-pciback/conf_space_header.c
View File

@ -68,36 +68,30 @@ static int command_write(struct pci_dev *dev, int offset, u16 value, void *data)
dev_data = pci_get_drvdata(dev);
if (!pci_is_enabled(dev) && is_enable_cmd(value)) {
if (unlikely(verbose_request))
dev_printk(KERN_DEBUG, &dev->dev, "enable\n");
dev_dbg(&dev->dev, "enable\n");
err = pci_enable_device(dev);
if (err)
return err;
if (dev_data)
dev_data->enable_intx = 1;
} else if (pci_is_enabled(dev) && !is_enable_cmd(value)) {
if (unlikely(verbose_request))
dev_printk(KERN_DEBUG, &dev->dev, "disable\n");
dev_dbg(&dev->dev, "disable\n");
pci_disable_device(dev);
if (dev_data)
dev_data->enable_intx = 0;
}
if (!dev->is_busmaster && is_master_cmd(value)) {
if (unlikely(verbose_request))
dev_printk(KERN_DEBUG, &dev->dev, "set bus master\n");
dev_dbg(&dev->dev, "set bus master\n");
pci_set_master(dev);
} else if (dev->is_busmaster && !is_master_cmd(value)) {
if (unlikely(verbose_request))
dev_printk(KERN_DEBUG, &dev->dev, "clear bus master\n");
dev_dbg(&dev->dev, "clear bus master\n");
pci_clear_master(dev);
}
if (!(cmd->val & PCI_COMMAND_INVALIDATE) &&
(value & PCI_COMMAND_INVALIDATE)) {
if (unlikely(verbose_request))
dev_printk(KERN_DEBUG, &dev->dev,
"enable memory-write-invalidate\n");
dev_dbg(&dev->dev, "enable memory-write-invalidate\n");
err = pci_set_mwi(dev);
if (err) {
dev_warn(&dev->dev, "cannot enable memory-write-invalidate (%d)\n",
@ -106,9 +100,7 @@ static int command_write(struct pci_dev *dev, int offset, u16 value, void *data)
}
} else if ((cmd->val & PCI_COMMAND_INVALIDATE) &&
!(value & PCI_COMMAND_INVALIDATE)) {
if (unlikely(verbose_request))
dev_printk(KERN_DEBUG, &dev->dev,
"disable memory-write-invalidate\n");
dev_dbg(&dev->dev, "disable memory-write-invalidate\n");
pci_clear_mwi(dev);
}

2
drivers/xen/xen-pciback/pciback.h
View File

@ -186,8 +186,6 @@ void xen_pcibk_do_op(struct work_struct *data);
int xen_pcibk_xenbus_register(void);
void xen_pcibk_xenbus_unregister(void);
extern int verbose_request;
void xen_pcibk_test_and_schedule_op(struct xen_pcibk_device *pdev);
#endif

35
drivers/xen/xen-pciback/pciback_ops.c
View File

@ -15,9 +15,6 @@
#include <linux/sched.h>
#include "pciback.h"
int verbose_request;
module_param(verbose_request, int, 0644);
static irqreturn_t xen_pcibk_guest_interrupt(int irq, void *dev_id);
/* Ensure a device is has the fake IRQ handler "turned on/off" and is
@ -148,9 +145,6 @@ int xen_pcibk_enable_msi(struct xen_pcibk_device *pdev,
struct xen_pcibk_dev_data *dev_data;
int status;
if (unlikely(verbose_request))
dev_printk(KERN_DEBUG, &dev->dev, "enable MSI\n");
if (dev->msi_enabled)
status = -EALREADY;
else if (dev->msix_enabled)
@ -169,8 +163,8 @@ int xen_pcibk_enable_msi(struct xen_pcibk_device *pdev,
* the local domain's IRQ number. */
op->value = dev->irq ? xen_pirq_from_irq(dev->irq) : 0;
if (unlikely(verbose_request))
dev_printk(KERN_DEBUG, &dev->dev, "MSI: %d\n", op->value);
dev_dbg(&dev->dev, "MSI: %d\n", op->value);
dev_data = pci_get_drvdata(dev);
if (dev_data)
@ -183,9 +177,6 @@ static
int xen_pcibk_disable_msi(struct xen_pcibk_device *pdev,
struct pci_dev *dev, struct xen_pci_op *op)
{
if (unlikely(verbose_request))
dev_printk(KERN_DEBUG, &dev->dev, "disable MSI\n");
if (dev->msi_enabled) {
struct xen_pcibk_dev_data *dev_data;
@ -196,8 +187,9 @@ int xen_pcibk_disable_msi(struct xen_pcibk_device *pdev,
dev_data->ack_intr = 1;
}
op->value = dev->irq ? xen_pirq_from_irq(dev->irq) : 0;
if (unlikely(verbose_request))
dev_printk(KERN_DEBUG, &dev->dev, "MSI: %d\n", op->value);
dev_dbg(&dev->dev, "MSI: %d\n", op->value);
return 0;
}
@ -210,8 +202,7 @@ int xen_pcibk_enable_msix(struct xen_pcibk_device *pdev,
struct msix_entry *entries;
u16 cmd;
if (unlikely(verbose_request))
dev_printk(KERN_DEBUG, &dev->dev, "enable MSI-X\n");
dev_dbg(&dev->dev, "enable MSI-X\n");
if (op->value > SH_INFO_MAX_VEC)
return -EINVAL;
@ -244,10 +235,8 @@ int xen_pcibk_enable_msix(struct xen_pcibk_device *pdev,
if (entries[i].vector) {
op->msix_entries[i].vector =
xen_pirq_from_irq(entries[i].vector);
if (unlikely(verbose_request))
dev_printk(KERN_DEBUG, &dev->dev,
"MSI-X[%d]: %d\n", i,
op->msix_entries[i].vector);
dev_dbg(&dev->dev, "MSI-X[%d]: %d\n", i,
op->msix_entries[i].vector);
}
}
} else
@ -267,9 +256,6 @@ static
int xen_pcibk_disable_msix(struct xen_pcibk_device *pdev,
struct pci_dev *dev, struct xen_pci_op *op)
{
if (unlikely(verbose_request))
dev_printk(KERN_DEBUG, &dev->dev, "disable MSI-X\n");
if (dev->msix_enabled) {
struct xen_pcibk_dev_data *dev_data;
@ -284,8 +270,9 @@ int xen_pcibk_disable_msix(struct xen_pcibk_device *pdev,
* an undefined IRQ value of zero.
*/
op->value = dev->irq ? xen_pirq_from_irq(dev->irq) : 0;
if (unlikely(verbose_request))
dev_printk(KERN_DEBUG, &dev->dev, "MSI-X: %d\n", op->value);
dev_dbg(&dev->dev, "MSI-X: %d\n", op->value);
return 0;
}
#endif