[librm] Correct page table stride calculation

Signed-off-by: Michael Brown <mcb30@ipxe.org>

diff --git a/src/arch/x86/transitions/librm_mgmt.c b/src/arch/x86/transitions/librm_mgmt.c
index 77aecdb7d6122141ed4b20801f1c85443855ecb1..e51f0e6495d16b1796af9ffe4e847f4872f90e73 100644 (file)
--- a/src/arch/x86/transitions/librm_mgmt.c
+++ b/src/arch/x86/transitions/librm_mgmt.c
@@ -307,7 +307,7 @@ static void * ioremap_pages ( unsigned long bus_addr, size_t len ) {
                           sizeof ( io_pages.page[0] ) ) );
 
        /* Round up number of pages to a power of two */
-       stride = ( 1 << ( fls ( count ) - 1 ) );
+       stride = ( 1 << fls ( count - 1 ) );
        assert ( count <= stride );
 
        /* Allocate pages */