Messages in this thread Patch in this message | | | From | Olaf Hering <> | Subject | [PATCH] Tools: hv: use full nlmsghdr in netlink_send | Date | Wed, 7 Aug 2013 15:45:12 +0200 |
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There is no need to have a nlmsghdr pointer to another temporary buffer. Instead use a full struct nlmsghdr.
Signed-off-by: Olaf Hering <olaf@aepfle.de> --- tools/hv/hv_kvp_daemon.c | 15 +++++---------- tools/hv/hv_vss_daemon.c | 15 +++++---------- 2 files changed, 10 insertions(+), 20 deletions(-)
diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c index 1bd1ad1..7c05f55 100644 --- a/tools/hv/hv_kvp_daemon.c +++ b/tools/hv/hv_kvp_daemon.c @@ -1393,23 +1393,18 @@ kvp_get_domain_name(char *buffer, int length) static int netlink_send(int fd, struct cn_msg *msg) { - struct nlmsghdr *nlh; + struct nlmsghdr nlh = { .nlmsg_type = NLMSG_DONE }; unsigned int size; struct msghdr message; - char buffer[64]; struct iovec iov[2]; size = sizeof(struct cn_msg) + msg->len; - nlh = (struct nlmsghdr *)buffer; - nlh->nlmsg_seq = 0; - nlh->nlmsg_pid = getpid(); - nlh->nlmsg_type = NLMSG_DONE; - nlh->nlmsg_len = NLMSG_LENGTH(size - sizeof(*nlh)); - nlh->nlmsg_flags = 0; + nlh.nlmsg_pid = getpid(); + nlh.nlmsg_len = NLMSG_LENGTH(size); - iov[0].iov_base = nlh; - iov[0].iov_len = sizeof(*nlh); + iov[0].iov_base = &nlh; + iov[0].iov_len = sizeof(nlh); iov[1].iov_base = msg; iov[1].iov_len = size; diff --git a/tools/hv/hv_vss_daemon.c b/tools/hv/hv_vss_daemon.c index 2f1f53f..8ac0ee7 100644 --- a/tools/hv/hv_vss_daemon.c +++ b/tools/hv/hv_vss_daemon.c @@ -105,23 +105,18 @@ static int vss_operate(int operation) static int netlink_send(int fd, struct cn_msg *msg) { - struct nlmsghdr *nlh; + struct nlmsghdr nlh = { .nlmsg_type = NLMSG_DONE }; unsigned int size; struct msghdr message; - char buffer[64]; struct iovec iov[2]; size = sizeof(struct cn_msg) + msg->len; - nlh = (struct nlmsghdr *)buffer; - nlh->nlmsg_seq = 0; - nlh->nlmsg_pid = getpid(); - nlh->nlmsg_type = NLMSG_DONE; - nlh->nlmsg_len = NLMSG_LENGTH(size - sizeof(*nlh)); - nlh->nlmsg_flags = 0; + nlh.nlmsg_pid = getpid(); + nlh.nlmsg_len = NLMSG_LENGTH(size); - iov[0].iov_base = nlh; - iov[0].iov_len = sizeof(*nlh); + iov[0].iov_base = &nlh; + iov[0].iov_len = sizeof(nlh); iov[1].iov_base = msg; iov[1].iov_len = size;
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