diff options
| author | Kumar Kartikeya Dwivedi <memxor@gmail.com> | 2021-06-19 07:14:54 +0300 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2021-06-22 18:04:02 +0300 |
| commit | ee62a5c6bb100b6fb07f3da3818c10a24d440e10 (patch) | |
| tree | 270269a64537986921e4e3338ae5594395b04be1 | |
| parent | 0ae64fb6b645e0f976e08bc3c05e518856f19d00 (diff) | |
| download | linux-ee62a5c6bb100b6fb07f3da3818c10a24d440e10.tar.xz | |
libbpf: Switch to void * casting in netlink helpers
Netlink helpers I added in 8bbb77b7c7a2 ("libbpf: Add various netlink
helpers") used char * casts everywhere, and there were a few more that
existed from before.
Convert all of them to void * cast, as it is treated equivalently by
clang/gcc for the purposes of pointer arithmetic and to follow the
convention elsewhere in the kernel/libbpf.
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210619041454.417577-2-memxor@gmail.com
| -rw-r--r-- | tools/lib/bpf/netlink.c | 2 | ||||
| -rw-r--r-- | tools/lib/bpf/nlattr.c | 2 | ||||
| -rw-r--r-- | tools/lib/bpf/nlattr.h | 8 |
3 files changed, 6 insertions, 6 deletions
diff --git a/tools/lib/bpf/netlink.c b/tools/lib/bpf/netlink.c index bfaa9a5c50f3..39f25e09b51e 100644 --- a/tools/lib/bpf/netlink.c +++ b/tools/lib/bpf/netlink.c @@ -524,7 +524,7 @@ static int get_tc_info(struct nlmsghdr *nh, libbpf_dump_nlmsg_t fn, struct nlattr *tb[TCA_MAX + 1]; libbpf_nla_parse(tb, TCA_MAX, - (struct nlattr *)((char *)tc + NLMSG_ALIGN(sizeof(*tc))), + (struct nlattr *)((void *)tc + NLMSG_ALIGN(sizeof(*tc))), NLMSG_PAYLOAD(nh, sizeof(*tc)), NULL); if (!tb[TCA_KIND]) return NL_CONT; diff --git a/tools/lib/bpf/nlattr.c b/tools/lib/bpf/nlattr.c index b607fa9852b1..f57e77a6e40f 100644 --- a/tools/lib/bpf/nlattr.c +++ b/tools/lib/bpf/nlattr.c @@ -27,7 +27,7 @@ static struct nlattr *nla_next(const struct nlattr *nla, int *remaining) int totlen = NLA_ALIGN(nla->nla_len); *remaining -= totlen; - return (struct nlattr *) ((char *) nla + totlen); + return (struct nlattr *)((void *)nla + totlen); } static int nla_ok(const struct nlattr *nla, int remaining) diff --git a/tools/lib/bpf/nlattr.h b/tools/lib/bpf/nlattr.h index 76cbfeb21955..4d15ae2ff812 100644 --- a/tools/lib/bpf/nlattr.h +++ b/tools/lib/bpf/nlattr.h @@ -81,7 +81,7 @@ struct libbpf_nla_req { */ static inline void *libbpf_nla_data(const struct nlattr *nla) { - return (char *) nla + NLA_HDRLEN; + return (void *)nla + NLA_HDRLEN; } static inline uint8_t libbpf_nla_getattr_u8(const struct nlattr *nla) @@ -118,12 +118,12 @@ int libbpf_nla_dump_errormsg(struct nlmsghdr *nlh); static inline struct nlattr *nla_data(struct nlattr *nla) { - return (struct nlattr *)((char *)nla + NLA_HDRLEN); + return (struct nlattr *)((void *)nla + NLA_HDRLEN); } static inline struct nlattr *req_tail(struct libbpf_nla_req *req) { - return (struct nlattr *)((char *)req + NLMSG_ALIGN(req->nh.nlmsg_len)); + return (struct nlattr *)((void *)req + NLMSG_ALIGN(req->nh.nlmsg_len)); } static inline int nlattr_add(struct libbpf_nla_req *req, int type, @@ -158,7 +158,7 @@ static inline struct nlattr *nlattr_begin_nested(struct libbpf_nla_req *req, int static inline void nlattr_end_nested(struct libbpf_nla_req *req, struct nlattr *tail) { - tail->nla_len = (char *)req_tail(req) - (char *)tail; + tail->nla_len = (void *)req_tail(req) - (void *)tail; } #endif /* __LIBBPF_NLATTR_H */ |