The signature for __iowrite64_copy() requires the number of 64 bit
quantities, not bytes. Multiple by 8 to get to a byte length before
invoking zpci_memcpy_toio()
Fixes: 87bc359b9822 ("s390/pci: speed up __iowrite64_copy by using pci store block insn")
Acked-by: Niklas Schnelle <schnelle@xxxxxxxxxxxxx>
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
---
arch/s390/pci/pci.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 676ac74026a82b..52a44e353796c0 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -252,7 +252,7 @@ resource_size_t pcibios_align_resource(void *data, const struct resource *res,
/* combine single writes by using store-block insn */
void __iowrite64_copy(void __iomem *to, const void *from, size_t count)
{
- zpci_memcpy_toio(to, from, count);
+ zpci_memcpy_toio(to, from, count * 8);
}
void __iomem *ioremap_prot(phys_addr_t phys_addr, size_t size,
base-commit: cf4f722d8b48e66de348f2fe8d0e19c01d3e6b72
--
2.43.2
