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| author | Chen Li <chenli@uniontech.com> | 2021-06-07 04:44:35 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-06-10 22:51:33 +0300 |
| commit | d409989b59ad0b8d108706db25e17c320a9664eb (patch) | |
| tree | d06d6c55ba7cc6a535ef46bf209c1d0bba419c37 | |
| parent | 0d155170d6eebbd6c50e16bc928c31b3f5473025 (diff) | |
| download | linux-d409989b59ad0b8d108706db25e17c320a9664eb.tar.xz | |
netlink: simplify NLMSG_DATA with NLMSG_HDRLEN
The NLMSG_LENGTH(0) may confuse the API users,
NLMSG_HDRLEN is much more clear.
Besides, some code style problems are also fixed.
Signed-off-by: Chen Li <chenli@uniontech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/uapi/linux/netlink.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/uapi/linux/netlink.h b/include/uapi/linux/netlink.h index 3d94269bbfa8..4c0cde075c27 100644 --- a/include/uapi/linux/netlink.h +++ b/include/uapi/linux/netlink.h @@ -91,9 +91,10 @@ struct nlmsghdr { #define NLMSG_HDRLEN ((int) NLMSG_ALIGN(sizeof(struct nlmsghdr))) #define NLMSG_LENGTH(len) ((len) + NLMSG_HDRLEN) #define NLMSG_SPACE(len) NLMSG_ALIGN(NLMSG_LENGTH(len)) -#define NLMSG_DATA(nlh) ((void*)(((char*)nlh) + NLMSG_LENGTH(0))) +#define NLMSG_DATA(nlh) ((void *)(((char *)nlh) + NLMSG_HDRLEN)) #define NLMSG_NEXT(nlh,len) ((len) -= NLMSG_ALIGN((nlh)->nlmsg_len), \ - (struct nlmsghdr*)(((char*)(nlh)) + NLMSG_ALIGN((nlh)->nlmsg_len))) + (struct nlmsghdr *)(((char *)(nlh)) + \ + NLMSG_ALIGN((nlh)->nlmsg_len))) #define NLMSG_OK(nlh,len) ((len) >= (int)sizeof(struct nlmsghdr) && \ (nlh)->nlmsg_len >= sizeof(struct nlmsghdr) && \ (nlh)->nlmsg_len <= (len)) |