diff options
| author | Pavel Begunkov <asml.silence@gmail.com> | 2022-07-12 23:52:29 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-07-20 00:20:42 +0300 |
| commit | 7c701d92b2b5e5175dbfec875816474b802b0c45 (patch) | |
| tree | 974616dd04936290206960cea47e7366b1bc0392 /net | |
| parent | 2e07a521e1e424787af3bfc59615de4220856c35 (diff) | |
| download | linux-7c701d92b2b5e5175dbfec875816474b802b0c45.tar.xz | |
skbuff: carry external ubuf_info in msghdr
Make possible for network in-kernel callers like io_uring to pass in a
custom ubuf_info by setting it in a new field of struct msghdr.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/compat.c | 1 | ||||
| -rw-r--r-- | net/socket.c | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/net/compat.c b/net/compat.c index 210fc3b4d0d8..6cd2e7683dd0 100644 --- a/net/compat.c +++ b/net/compat.c @@ -80,6 +80,7 @@ int __get_compat_msghdr(struct msghdr *kmsg, return -EMSGSIZE; kmsg->msg_iocb = NULL; + kmsg->msg_ubuf = NULL; *ptr = msg.msg_iov; *len = msg.msg_iovlen; return 0; diff --git a/net/socket.c b/net/socket.c index 96300cdc0625..82af3882b876 100644 --- a/net/socket.c +++ b/net/socket.c @@ -2106,6 +2106,7 @@ int __sys_sendto(int fd, void __user *buff, size_t len, unsigned int flags, msg.msg_control = NULL; msg.msg_controllen = 0; msg.msg_namelen = 0; + msg.msg_ubuf = NULL; if (addr) { err = move_addr_to_kernel(addr, addr_len, &address); if (err < 0) @@ -2405,6 +2406,7 @@ int __copy_msghdr_from_user(struct msghdr *kmsg, return -EMSGSIZE; kmsg->msg_iocb = NULL; + kmsg->msg_ubuf = NULL; *uiov = msg.msg_iov; *nsegs = msg.msg_iovlen; return 0; |