From 03102a4ded430586936445a733d0d29660f4d7c1 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Fri, 3 Apr 2009 00:56:30 -0700 Subject: sysctl: sparc Use the compat_sys_sysctl Now that we have a generic 32bit compatibility implementation there is no need for sparc to implement it's own. Acked-by: David S. Miller Signed-off-by: Eric W. Biederman --- arch/sparc/kernel/sys_sparc32.c | 57 ----------------------------------------- 1 file changed, 57 deletions(-) (limited to 'arch/sparc/kernel/sys_sparc32.c') diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c index 04e28b2671c8..f862372074bc 100644 --- a/arch/sparc/kernel/sys_sparc32.c +++ b/arch/sparc/kernel/sys_sparc32.c @@ -591,63 +591,6 @@ out: return ret; } -struct __sysctl_args32 { - u32 name; - int nlen; - u32 oldval; - u32 oldlenp; - u32 newval; - u32 newlen; - u32 __unused[4]; -}; - -asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args) -{ -#ifndef CONFIG_SYSCTL_SYSCALL - return -ENOSYS; -#else - struct __sysctl_args32 tmp; - int error; - size_t oldlen, __user *oldlenp = NULL; - unsigned long addr = (((unsigned long)&args->__unused[0]) + 7UL) & ~7UL; - - if (copy_from_user(&tmp, args, sizeof(tmp))) - return -EFAULT; - - if (tmp.oldval && tmp.oldlenp) { - /* Duh, this is ugly and might not work if sysctl_args - is in read-only memory, but do_sysctl does indirectly - a lot of uaccess in both directions and we'd have to - basically copy the whole sysctl.c here, and - glibc's __sysctl uses rw memory for the structure - anyway. */ - if (get_user(oldlen, (u32 __user *)(unsigned long)tmp.oldlenp) || - put_user(oldlen, (size_t __user *)addr)) - return -EFAULT; - oldlenp = (size_t __user *)addr; - } - - lock_kernel(); - error = do_sysctl((int __user *)(unsigned long) tmp.name, - tmp.nlen, - (void __user *)(unsigned long) tmp.oldval, - oldlenp, - (void __user *)(unsigned long) tmp.newval, - tmp.newlen); - unlock_kernel(); - if (oldlenp) { - if (!error) { - if (get_user(oldlen, (size_t __user *)addr) || - put_user(oldlen, (u32 __user *)(unsigned long) tmp.oldlenp)) - error = -EFAULT; - } - if (copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused))) - error = -EFAULT; - } - return error; -#endif -} - long sys32_lookup_dcookie(unsigned long cookie_high, unsigned long cookie_low, char __user *buf, size_t len) -- cgit v1.2.2