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| author |   Al Viro <viro@zeniv.linux.org.uk> | 2020-05-07 21:39:29 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2020-05-29 11:06:32 -0400 |
| commit | fd8ec4dd4a79d5ad51d31d4a7664b5f82d108316 (patch) | |
| tree | 77877cf8b122207c9250f8285927e762d50ca65f /drivers/infiniband | |
| parent | usb: get rid of pointless access_ok() calls (diff) | |
| download | wireguard-linux-fd8ec4dd4a79d5ad51d31d4a7664b5f82d108316.tar.xz wireguard-linux-fd8ec4dd4a79d5ad51d31d4a7664b5f82d108316.zip | |
hfi1: get rid of pointless access_ok()
pin_user_pages_fast() doesn't need that from its caller.
NB: only reachable from ->ioctl(), and only under USER_DS
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/user_exp_rcv.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/drivers/infiniband/hw/hfi1/user_exp_rcv.c b/drivers/infiniband/hw/hfi1/user_exp_rcv.c index 4da03f823474..f81ca20f4b69 100644 --- a/drivers/infiniband/hw/hfi1/user_exp_rcv.c +++ b/drivers/infiniband/hw/hfi1/user_exp_rcv.c @@ -206,13 +206,6 @@ static int pin_rcv_pages(struct hfi1_filedata *fd, struct tid_user_buf *tidbuf) return -EINVAL; } - /* Verify that access is OK for the user buffer */ - if (!access_ok((void __user *)vaddr, - npages * PAGE_SIZE)) { - dd_dev_err(dd, "Fail vaddr %p, %u pages, !access_ok\n", - (void *)vaddr, npages); - return -EFAULT; - } /* Allocate the array of struct page pointers needed for pinning */ pages = kcalloc(npages, sizeof(*pages), GFP_KERNEL); if (!pages) |