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Commit c6201cd8 authored by Bjorn Helgaas's avatar Bjorn Helgaas
Browse files

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: default avatarBjorn Helgaas <bhelgaas@google.com>
parent 96803199

drivers/pci/pci.c

+0 −33
Original line number Diff line number Diff line
@@ -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);

include/linux/pci.h

+0 −1
Original line number Diff line number Diff line
@@ -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);