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regset: kill ->get()

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2020-06-16 15:34:20 -04:00
parent dcad7854fc
commit 1e6986c9db
2 changed files with 5 additions and 41 deletions
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24
kernel/regset.c
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@@ -11,7 +11,7 @@ static int __regset_get(struct task_struct *target,
void *p = *data, *to_free = NULL;
int res;
if (!regset->get && !regset->regset_get)
if (!regset->regset_get)
return -EOPNOTSUPP;
if (size > regset->n * regset->size)
size = regset->n * regset->size;
@@ -20,28 +20,14 @@ 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)) {
res = regset->regset_get(target, regset,
(struct membuf){.p = p, .left = size});
if (res < 0) {
kfree(to_free);
return res;
}
*data = p;
if (regset->get_size) { // arm64-only kludge, will go away
unsigned max_size = regset->get_size(target, regset);
if (size > max_size)
size = max_size;
}
return size;
return size - res;
}
int regset_get(struct task_struct *target,