openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

PCI/MSI: Remove unused pci_msi_off() 

pci_msi_off() is unused, so remove it.

Removes the exported symbol pci_msi_off().

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Bjorn Helgaas 2015-05-07 09:52:22 -05:00
parent 96803199b7
commit c6201cd851
2 changed files with 0 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
drivers/pci/pci.c
View File

@ -3101,39 +3101,6 @@ bool pci_check_and_unmask_intx(struct pci_dev *dev)
}
EXPORT_SYMBOL_GPL(pci_check_and_unmask_intx);
/**
* pci_msi_off - disables any MSI or MSI-X capabilities
* @dev: the PCI device to operate on
*
* If you want to use MSI, see pci_enable_msi() and friends.
* This is a lower-level primitive that allows us to disable
* MSI operation at the device level.
*/
void pci_msi_off(struct pci_dev *dev)
{
int pos;
u16 control;
/*
* This looks like it could go in msi.c, but we need it even when
* CONFIG_PCI_MSI=n. For the same reason, we can't use
* dev->msi_cap or dev->msix_cap here.
*/
pos = pci_find_capability(dev, PCI_CAP_ID_MSI);
if (pos) {
pci_read_config_word(dev, pos + PCI_MSI_FLAGS, &control);
control &= ~PCI_MSI_FLAGS_ENABLE;
pci_write_config_word(dev, pos + PCI_MSI_FLAGS, control);
}
pos = pci_find_capability(dev, PCI_CAP_ID_MSIX);
if (pos) {
pci_read_config_word(dev, pos + PCI_MSIX_FLAGS, &control);
control &= ~PCI_MSIX_FLAGS_ENABLE;
pci_write_config_word(dev, pos + PCI_MSIX_FLAGS, control);
}
}
EXPORT_SYMBOL_GPL(pci_msi_off);
int pci_set_dma_max_seg_size(struct pci_dev *dev, unsigned int size)
{
return dma_set_max_seg_size(&dev->dev, size);

1
include/linux/pci.h
View File

@ -974,7 +974,6 @@ void pci_intx(struct pci_dev *dev, int enable);
bool pci_intx_mask_supported(struct pci_dev *dev);
bool pci_check_and_mask_intx(struct pci_dev *dev);
bool pci_check_and_unmask_intx(struct pci_dev *dev);
void pci_msi_off(struct pci_dev *dev);
int pci_set_dma_max_seg_size(struct pci_dev *dev, unsigned int size);
int pci_set_dma_seg_boundary(struct pci_dev *dev, unsigned long mask);
int pci_wait_for_pending(struct pci_dev *dev, int pos, u16 mask);