Cast line_size to address width before using for alignment.

ok kettenis@

diff --git a/sys/arch/riscv64/dev/sfcc.c b/sys/arch/riscv64/dev/sfcc.c
index b05401d..7b87447 100644 (file)
--- a/sys/arch/riscv64/dev/sfcc.c
+++ b/sys/arch/riscv64/dev/sfcc.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: sfcc.c,v 1.1 2021/05/05 19:26:51 kettenis Exp $       */
+/*     $OpenBSD: sfcc.c,v 1.2 2021/05/22 17:07:28 drahn Exp $  */
 /*
  * Copyright (c) 2021 Mark Kettenis <kettenis@openbsd.org>
  *
@@ -98,7 +98,7 @@ sfcc_cache_wbinv_range(paddr_t pa, paddr_t len)
        struct sfcc_softc *sc = sfcc_sc;
 
        len += pa & (sc->sc_line_size - 1);
-       pa &= ~(sc->sc_line_size - 1);
+       pa &= ~((paddr_t)sc->sc_line_size - 1);
 
        __asm volatile ("fence iorw,iorw" ::: "memory");
        while (len > 0) {