s390/pci: reduce iomap size (even more)

Commit c506fff3d3a8 ("s390/pci: resize iomap") reduced the iomap
to NR_FUNCTIONS * PCI_BAR_COUNT elements. Since we only support
functions with 64bit BARs we can cut that number in half.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index e6cb96a1171fe28cea7c1c55b1205fca60e44e62..ba56b9d9c765c3b4e34a4258cc98ffba4290f0c1 100644 (file)
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -69,7 +69,7 @@ static struct airq_struct zpci_airq = {
 };
 
 #define ZPCI_IOMAP_ENTRIES                                             \
-       min(((unsigned long) CONFIG_PCI_NR_FUNCTIONS * PCI_BAR_COUNT),  \
+       min(((unsigned long) ZPCI_NR_DEVICES * PCI_BAR_COUNT / 2),      \
            ZPCI_IOMAP_MAX_ENTRIES)
 
 static DEFINE_SPINLOCK(zpci_iomap_lock);