When CONFIG_SYSCTL_SYSCALL isn't defined, do_sysctl doesn't exist and
we fail to link. Fix with an ifdef, the same way sparc64 did.
Also add some minor changes to be more like sparc64.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args)
{
asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args)
{
+#ifndef CONFIG_SYSCTL_SYSCALL
+ return -ENOSYS;
+#else
struct __sysctl_args32 tmp;
int error;
unsigned int oldlen32;
struct __sysctl_args32 tmp;
int error;
unsigned int oldlen32;
- size_t oldlen, *oldlenp = NULL;
+ size_t oldlen, __user *oldlenp = NULL;
unsigned long addr = (((long __force)&args->__unused[0]) + 7) & ~7;
unsigned long addr = (((long __force)&args->__unused[0]) + 7) & ~7;
- extern int do_sysctl(int *name, int nlen, void *oldval, size_t *oldlenp,
- void *newval, size_t newlen);
DBG(("sysctl32(%p)\n", args));
DBG(("sysctl32(%p)\n", args));
- error = do_sysctl((int *)(u64)tmp.name, tmp.nlen, (void *)(u64)tmp.oldval,
- oldlenp, (void *)(u64)tmp.newval, tmp.newlen);
+ error = do_sysctl((int __user *)(u64)tmp.name, tmp.nlen,
+ (void __user *)(u64)tmp.oldval, oldlenp,
+ (void __user *)(u64)tmp.newval, tmp.newlen);
unlock_kernel();
if (oldlenp) {
if (!error) {
unlock_kernel();
if (oldlenp) {
if (!error) {
- if (copy_to_user(&args->__unused[0], tmp.__unused, sizeof(tmp.__unused)))
+ if (copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused)))
error = -EFAULT;
}
return error;
error = -EFAULT;
}
return error;
}
#endif /* CONFIG_SYSCTL */
}
#endif /* CONFIG_SYSCTL */