PCI/MSI: Remove pci_enable_msi_block_auto()

The new pci_msi_vec_count() interface makes pci_enable_msi_block_auto()
superfluous.

Drivers can use pci_msi_vec_count() to learn the maximum number of MSIs
supported by the device, and then call pci_enable_msi_block().

pci_enable_msi_block_auto() was introduced recently, and its only user is
the AHCI driver, which is also updated by this change.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Tejun Heo <tj@kernel.org>

1 files changed, 0 insertions, 25 deletions

diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index ba6d0a9bdd39..76507ab13beb 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -911,31 +911,6 @@ int pci_enable_msi_block(struct pci_dev *dev, int nvec)
 }
 EXPORT_SYMBOL(pci_enable_msi_block);
 
-int pci_enable_msi_block_auto(struct pci_dev *dev, int *maxvec)
-{
-        int ret, nvec;
-
-        if (dev->current_state != PCI_D0)
-                return -EINVAL;
-
-        ret = pci_msi_vec_count(dev);
-        if (ret < 0)
-                return ret;
-
-        if (maxvec)
-                *maxvec = ret;
-
-        do {
-                nvec = ret;
-                ret = pci_enable_msi_block(dev, nvec);
-        } while (ret > 0);
-
-        if (ret < 0)
-                return ret;
-        return nvec;
-}
-EXPORT_SYMBOL(pci_enable_msi_block_auto);
-
 void pci_msi_shutdown(struct pci_dev *dev)
 {
         struct msi_desc *desc;