driver inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/IB9H0P CVE: NA ---------------------------------------------------------------------- Since the driver doesn't support the mremap, add an error number to show users the fail. Signed-off-by: Yang Shen <shenyang39@huawei.com> Signed-off-by: JiangShui Yang <yangjiangshui@h-partners.com> --- drivers/misc/uacce/uacce.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/misc/uacce/uacce.c b/drivers/misc/uacce/uacce.c index 6e142a04b080..6202a4e2c60f 100644 --- a/drivers/misc/uacce/uacce.c +++ b/drivers/misc/uacce/uacce.c @@ -392,8 +392,14 @@ static void uacce_vma_close(struct vm_area_struct *vma) } } +static int uacce_vma_mremap(struct vm_area_struct *area) +{ + return -EPERM; +} + static const struct vm_operations_struct uacce_vm_ops = { .close = uacce_vma_close, + .mremap = uacce_vma_mremap, }; static int get_sort_base(struct uacce_dma_slice *list, int low, int high, -- 2.43.0