Update to kernel headers v4.12.3.

Test: Built angler.
Change-Id: Icbcf4fac2334de8409b049ed7a3b4c24b4e98ce9
diff --git a/libc/kernel/uapi/linux/smc_diag.h b/libc/kernel/uapi/linux/smc_diag.h
new file mode 100644
index 0000000..66f93f0
--- /dev/null
+++ b/libc/kernel/uapi/linux/smc_diag.h
@@ -0,0 +1,80 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ***   To edit the content of this header, modify the corresponding
+ ***   source file (e.g. under external/kernel-headers/original/) then
+ ***   run bionic/libc/kernel/tools/update_all.py
+ ***
+ ***   Any manual change here will be lost the next time this script will
+ ***   be run. You've been warned!
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _UAPI_SMC_DIAG_H_
+#define _UAPI_SMC_DIAG_H_
+#include <linux/types.h>
+#include <linux/inet_diag.h>
+#include <rdma/ib_user_verbs.h>
+struct smc_diag_req {
+  __u8 diag_family;
+  __u8 pad[2];
+  __u8 diag_ext;
+  struct inet_diag_sockid id;
+};
+struct smc_diag_msg {
+  __u8 diag_family;
+  __u8 diag_state;
+  __u8 diag_fallback;
+  __u8 diag_shutdown;
+  struct inet_diag_sockid id;
+  __u32 diag_uid;
+  __u64 diag_inode;
+};
+enum {
+  SMC_DIAG_NONE,
+  SMC_DIAG_CONNINFO,
+  SMC_DIAG_LGRINFO,
+  SMC_DIAG_SHUTDOWN,
+  __SMC_DIAG_MAX,
+};
+#define SMC_DIAG_MAX (__SMC_DIAG_MAX - 1)
+struct smc_diag_cursor {
+  __u16 reserved;
+  __u16 wrap;
+  __u32 count;
+};
+struct smc_diag_conninfo {
+  __u32 token;
+  __u32 sndbuf_size;
+  __u32 rmbe_size;
+  __u32 peer_rmbe_size;
+  struct smc_diag_cursor rx_prod;
+  struct smc_diag_cursor rx_cons;
+  struct smc_diag_cursor tx_prod;
+  struct smc_diag_cursor tx_cons;
+  __u8 rx_prod_flags;
+  __u8 rx_conn_state_flags;
+  __u8 tx_prod_flags;
+  __u8 tx_conn_state_flags;
+  struct smc_diag_cursor tx_prep;
+  struct smc_diag_cursor tx_sent;
+  struct smc_diag_cursor tx_fin;
+};
+struct smc_diag_linkinfo {
+  __u8 link_id;
+  __u8 ibname[IB_DEVICE_NAME_MAX];
+  __u8 ibport;
+  __u8 gid[40];
+  __u8 peer_gid[40];
+};
+struct smc_diag_lgrinfo {
+  struct smc_diag_linkinfo lnk[1];
+  __u8 role;
+};
+#endif