diff options
Diffstat (limited to 'arch/sparc64/kernel/sunos_ioctl32.c')
| -rw-r--r-- | arch/sparc64/kernel/sunos_ioctl32.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/sparc64/kernel/sunos_ioctl32.c b/arch/sparc64/kernel/sunos_ioctl32.c index a0bfb47ef..d32ea68c2 100644 --- a/arch/sparc64/kernel/sunos_ioctl32.c +++ b/arch/sparc64/kernel/sunos_ioctl32.c @@ -1,4 +1,4 @@ -/* $Id: sunos_ioctl32.c,v 1.9 1998/03/29 10:10:53 davem Exp $ +/* $Id: sunos_ioctl32.c,v 1.10 1998/08/15 20:42:46 davem Exp $ * sunos_ioctl32.c: SunOS ioctl compatability on sparc64. * * Copyright (C) 1995 Miguel de Icaza (miguel@nuclecu.unam.mx) @@ -24,7 +24,14 @@ #include <linux/smp_lock.h> #include <asm/kbio.h> -#define A(x) ((unsigned long)x) +/* Use this to get at 32-bit user passed pointers. */ +#define A(__x) \ +({ unsigned long __ret; \ + __asm__ ("srl %0, 0, %0" \ + : "=r" (__ret) \ + : "0" (__x)); \ + __ret; \ +}) #define SUNOS_NR_OPEN 256 |