struct mtrr_sentry sentry;
struct mtrr_gentry gentry;
void __user *arg = (void __user *) __arg;
+ unsigned int compat_cmd = cmd;
- switch (cmd) {
+ switch (compat_cmd) {
case MTRRIOC_ADD_ENTRY:
case MTRRIOC_SET_ENTRY:
case MTRRIOC_DEL_ENTRY:
return -EFAULT;
break;
#ifdef CONFIG_COMPAT
- case MTRRIOC32_ADD_ENTRY:
- case MTRRIOC32_SET_ENTRY:
- case MTRRIOC32_DEL_ENTRY:
- case MTRRIOC32_KILL_ENTRY:
- case MTRRIOC32_ADD_PAGE_ENTRY:
- case MTRRIOC32_SET_PAGE_ENTRY:
- case MTRRIOC32_DEL_PAGE_ENTRY:
- case MTRRIOC32_KILL_PAGE_ENTRY: {
+#define MTRR_COMPAT_OP(op, type)\
+ case MTRRIOC32_##op: \
+ cmd = MTRRIOC_##op; \
+ goto compat_get_##type
+
+ MTRR_COMPAT_OP(ADD_ENTRY, sentry);
+ MTRR_COMPAT_OP(SET_ENTRY, sentry);
+ MTRR_COMPAT_OP(DEL_ENTRY, sentry);
+ MTRR_COMPAT_OP(KILL_ENTRY, sentry);
+ MTRR_COMPAT_OP(ADD_PAGE_ENTRY, sentry);
+ MTRR_COMPAT_OP(SET_PAGE_ENTRY, sentry);
+ MTRR_COMPAT_OP(DEL_PAGE_ENTRY, sentry);
+ MTRR_COMPAT_OP(KILL_PAGE_ENTRY, sentry);
+compat_get_sentry: {
struct mtrr_sentry32 __user *s32 = (struct mtrr_sentry32 __user *)__arg;
err = get_user(sentry.base, &s32->base);
err |= get_user(sentry.size, &s32->size);
return err;
break;
}
- case MTRRIOC32_GET_ENTRY:
- case MTRRIOC32_GET_PAGE_ENTRY: {
+ MTRR_COMPAT_OP(GET_ENTRY, gentry);
+ MTRR_COMPAT_OP(GET_PAGE_ENTRY, gentry);
+compat_get_gentry: {
struct mtrr_gentry32 __user *g32 = (struct mtrr_gentry32 __user *)__arg;
err = get_user(gentry.regnum, &g32->regnum);
err |= get_user(gentry.base, &g32->base);
return err;
break;
}
+#undef MTRR_COMPAT_OP
#endif
}
if (err)
return err;
- switch(cmd) {
+ switch(compat_cmd) {
case MTRRIOC_GET_ENTRY:
case MTRRIOC_GET_PAGE_ENTRY:
if (copy_to_user(arg, &gentry, sizeof gentry))