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authorLinus Torvalds <torvalds@linux-foundation.org>2016-12-16 19:24:44 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-16 19:24:44 +0100
commit9a19a6db37ee0b7a6db796b3dcd6bb6e7237d6ea (patch)
tree614d68498eea1c6f9120cae07806f916fd9776bc /net/packet
parentMerge tag 'media/v4.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mc... (diff)
parentMerge branches 'work.namei', 'work.dcache' and 'work.iov_iter' into for-linus (diff)
downloadlinux-9a19a6db37ee0b7a6db796b3dcd6bb6e7237d6ea.tar.xz
linux-9a19a6db37ee0b7a6db796b3dcd6bb6e7237d6ea.zip
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs updates from Al Viro: - more ->d_init() stuff (work.dcache) - pathname resolution cleanups (work.namei) - a few missing iov_iter primitives - copy_from_iter_full() and friends. Either copy the full requested amount, advance the iterator and return true, or fail, return false and do _not_ advance the iterator. Quite a few open-coded callers converted (and became more readable and harder to fuck up that way) (work.iov_iter) - several assorted patches, the big one being logfs removal * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: logfs: remove from tree vfs: fix put_compat_statfs64() does not handle errors namei: fold should_follow_link() with the step into not-followed link namei: pass both WALK_GET and WALK_MORE to should_follow_link() namei: invert WALK_PUT logics namei: shift interpretation of LOOKUP_FOLLOW inside should_follow_link() namei: saner calling conventions for mountpoint_last() namei.c: get rid of user_path_parent() switch getfrag callbacks to ..._full() primitives make skb_add_data,{_nocache}() and skb_copy_to_page_nocache() advance only on success [iov_iter] new primitives - copy_from_iter_full() and friends don't open-code file_inode() ceph: switch to use of ->d_init() ceph: unify dentry_operations instances lustre: switch to use of ->d_init()
Diffstat (limited to 'net/packet')
-rw-r--r--net/packet/af_packet.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 89f2e8c1f4dc..49cd0c70a13a 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -2397,14 +2397,11 @@ static int __packet_snd_vnet_parse(struct virtio_net_hdr *vnet_hdr, size_t len)
static int packet_snd_vnet_parse(struct msghdr *msg, size_t *len,
struct virtio_net_hdr *vnet_hdr)
{
- int n;
-
if (*len < sizeof(*vnet_hdr))
return -EINVAL;
*len -= sizeof(*vnet_hdr);
- n = copy_from_iter(vnet_hdr, sizeof(*vnet_hdr), &msg->msg_iter);
- if (n != sizeof(*vnet_hdr))
+ if (!copy_from_iter_full(vnet_hdr, sizeof(*vnet_hdr), &msg->msg_iter))
return -EFAULT;
return __packet_snd_vnet_parse(vnet_hdr, *len);