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Diffstat (limited to 'kernel')
-rw-r--r--kernel/regset.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/kernel/regset.c b/kernel/regset.c
index 0a610983ce43..eaeaefbbd39e 100644
--- a/kernel/regset.c
+++ b/kernel/regset.c
@@ -11,7 +11,7 @@ static int __regset_get(struct task_struct *target,
void *p = *data, *to_free = NULL;
int res;
- if (!regset->get)
+ if (!regset->get && !regset->regset_get)
return -EOPNOTSUPP;
if (size > regset->n * regset->size)
size = regset->n * regset->size;
@@ -20,6 +20,16 @@ static int __regset_get(struct task_struct *target,
if (!p)
return -ENOMEM;
}
+ if (regset->regset_get) {
+ res = regset->regset_get(target, regset,
+ (struct membuf){.p = p, .left = size});
+ if (res < 0) {
+ kfree(to_free);
+ return res;
+ }
+ *data = p;
+ return size - res;
+ }
res = regset->get(target, regset, 0, size, p, NULL);
if (unlikely(res < 0)) {
kfree(to_free);