Use C99 style initializers everywhere
This big patch was compiled by vimgrepping for memset calls and changing
to C99 initializer if applicable. One notable exception is the
initialization of union bpf_attr in tc/tc_bpf.c: changing it would break
for older gcc versions (at least <=3.4.6).
Calls to memset for struct rtattr pointer fields for parse_rtattr*()
were just dropped since they are not needed.
The changes here allowed the compiler to discover some unused variables,
so get rid of them, too.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Acked-by: David Ahern <dsa@cumulusnetworks.com>
diff --git a/ip/ipnetns.c b/ip/ipnetns.c
index b3ee23c..af87065 100644
--- a/ip/ipnetns.c
+++ b/ip/ipnetns.c
@@ -61,16 +61,15 @@
struct nlmsghdr n;
struct rtgenmsg g;
char buf[1024];
- } req;
+ } req = {
+ .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtgenmsg)),
+ .n.nlmsg_flags = NLM_F_REQUEST,
+ .n.nlmsg_type = RTM_GETNSID,
+ .g.rtgen_family = AF_UNSPEC,
+ };
int fd;
if (have_rtnl_getnsid < 0) {
- memset(&req, 0, sizeof(req));
- req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtgenmsg));
- req.n.nlmsg_flags = NLM_F_REQUEST;
- req.n.nlmsg_type = RTM_GETNSID;
- req.g.rtgen_family = AF_UNSPEC;
-
fd = open("/proc/self/ns/net", O_RDONLY);
if (fd < 0) {
perror("open(\"/proc/self/ns/net\")");
@@ -96,17 +95,16 @@
struct nlmsghdr n;
struct rtgenmsg g;
char buf[1024];
- } req, answer;
+ } answer, req = {
+ .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtgenmsg)),
+ .n.nlmsg_flags = NLM_F_REQUEST,
+ .n.nlmsg_type = RTM_GETNSID,
+ .g.rtgen_family = AF_UNSPEC,
+ };
struct rtattr *tb[NETNSA_MAX + 1];
struct rtgenmsg *rthdr;
int len, fd;
- memset(&req, 0, sizeof(req));
- req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtgenmsg));
- req.n.nlmsg_flags = NLM_F_REQUEST;
- req.n.nlmsg_type = RTM_GETNSID;
- req.g.rtgen_family = AF_UNSPEC;
-
fd = netns_get_fd(name);
if (fd < 0)
return fd;
@@ -685,15 +683,14 @@
struct nlmsghdr n;
struct rtgenmsg g;
char buf[1024];
- } req;
+ } req = {
+ .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtgenmsg)),
+ .n.nlmsg_flags = NLM_F_REQUEST,
+ .n.nlmsg_type = RTM_NEWNSID,
+ .g.rtgen_family = AF_UNSPEC,
+ };
int fd, err = 0;
- memset(&req, 0, sizeof(req));
- req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtgenmsg));
- req.n.nlmsg_flags = NLM_F_REQUEST;
- req.n.nlmsg_type = RTM_NEWNSID;
- req.g.rtgen_family = AF_UNSPEC;
-
fd = netns_get_fd(name);
if (fd < 0)
return fd;