/* CMTP implementation for Linux Bluetooth stack (BlueZ). Copyright (C) 2002-2003 Marcel Holtmann This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS SOFTWARE IS DISCLAIMED. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "cmtp.h" static struct bt_sock_list cmtp_sk_list = { .lock = __RW_LOCK_UNLOCKED(cmtp_sk_list.lock) }; static int cmtp_sock_release(struct socket *sock) { struct sock *sk = sock->sk; BT_DBG("sock %p sk %p", sock, sk); if (!sk) return 0; bt_sock_unlink(&cmtp_sk_list, sk); sock_orphan(sk); sock_put(sk); return 0; } static int cmtp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) { struct cmtp_connadd_req ca; struct cmtp_conndel_req cd; struct cmtp_connlist_req cl; struct cmtp_conninfo ci; struct socket *nsock; void __user *argp = (void __user *)arg; int err; BT_DBG("cmd %x arg %lx", cmd, arg); switch (cmd) { case CMTPCONNADD: if (!capable(CAP_NET_ADMIN)) return -EPERM; if (copy_from_user(&ca, argp, sizeof(ca))) return -EFAULT; nsock = sockfd_lookup(ca.sock, &err); if (!nsock) return err; if (nsock->sk->sk_state != BT_CONNECTED) { sockfd_put(nsock); return -EBADFD; } err = cmtp_add_connection(&ca, nsock); if (!err) { if (copy_to_user(argp, &ca, sizeof(ca))) err = -EFAULT; } else sockfd_put(nsock); return err; case CMTPCONNDEL: if (!capable(CAP_NET_ADMIN)) return -EPERM; if (copy_from_user(&cd, argp, sizeof(cd))) return -EFAULT; return cmtp_del_connection(&cd); case CMTPGETCONNLIST: if (copy_from_user(&cl, argp, sizeof(cl))) return -EFAULT; if (cl.cnum <= 0) return -EINVAL; err = cmtp_get_connlist(&cl); if (!err && copy_to_user(argp, &cl, sizeof(cl))) return -EFAULT; return err; case CMTPGETCONNINFO: if (copy_from_user(&ci, argp, sizeof(ci))) return -EFAULT; err = cmtp_get_conninfo(&ci); if (!err && copy_to_user(argp, &ci, sizeof(ci))) return -EFAULT; return err; } return -EINVAL; } #ifdef CONFIG_COMPAT static int cmtp_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) { if (cmd == CMTPGETCONNLIST) { struct cmtp_connlist_req cl; u32 uci; int err; if (get_user(cl.cnum, (u32 __user *) arg) || get_user(uci, (u32 __user *) (arg + 4))) return -EFAULT; cl.ci = compat_ptr(uci); if (cl.cnum <= 0) return -EINVAL; err = cmtp_get_connlist(&cl); if (!err && put_user(cl.cnum, (u32 __user *) arg)) err = -EFAULT; return err; } return cmtp_sock_ioctl(sock, cmd, arg); } #endif static const struct proto_ops cmtp_sock_ops = { .family = PF_BLUETOOTH, .owner = THIS_MODULE, .release = cmtp_sock_release, .ioctl = cmtp_sock_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = cmtp_sock_compat_ioctl, #endif .bind = sock_no_bind, .getname = sock_no_getname, .sendmsg = sock_no_sendmsg, .recvmsg = sock_no_recvmsg, .poll = sock_no_poll, .listen = sock_no_listen, .shutdown = sock_no_shutdown, .setsockopt = sock_no_setsockopt, .getsockopt = sock_no_getsockopt, .connect = sock_no_connect, .socketpair = sock_no_socketpair, .accept = sock_no_accept, .mmap = sock_no_mmap }; static struct proto cmtp_proto = { .name = "CMTP", .owner = THIS_MODULE, .obj_size = sizeof(struct bt_sock) }; static int cmtp_sock_create(struct net *net, struct socket *sock, int protocol, int kern) { struct sock *sk; BT_DBG("sock %p", sock); if (sock->type != SOCK_RAW) return -ESOCKTNOSUPPORT; sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &cmtp_proto, kern); if (!sk) return -ENOMEM; sock_init_data(sock, sk); sock->ops = &cmtp_sock_ops; sock->state = SS_UNCONNECTED; sock_reset_flag(sk, SOCK_ZAPPED); sk->sk_protocol = protocol; sk->sk_state = BT_OPEN; bt_sock_link(&cmtp_sk_list, sk); return 0; } static const struct net_proto_family cmtp_sock_family_ops = { .family = PF_BLUETOOTH, .owner = THIS_MODULE, .create = cmtp_sock_create }; int cmtp_init_sockets(void) { int err; err = proto_register(&cmtp_proto, 0); if (err < 0) return err; err = bt_sock_register(BTPROTO_CMTP, &cmtp_sock_family_ops); if (err < 0) { BT_ERR("Can't register CMTP socket"); goto error; } err = bt_procfs_init(&init_net, "cmtp", &cmtp_sk_list, NULL); if (err < 0) { BT_ERR("Failed to create CMTP proc file"); bt_sock_unregister(BTPROTO_HIDP); goto error; } BT_INFO("CMTP socket layer initialized"); return 0; error: proto_unregister(&cmtp_proto); return err; } void cmtp_cleanup_sockets(void) { bt_procfs_cleanup(&init_net, "cmtp"); bt_sock_unregister(BTPROTO_CMTP); proto_unregister(&cmtp_proto); } tr>
perf/x86/intel/rapl: Make package handling more robust
The package management code in RAPL relies on package mapping being available before a CPU is started. This changed with: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust") because the ACPI/BIOS information turned out to be unreliable, but that left RAPL in broken state. This was not noticed because on a regular boot all CPUs are online before RAPL is initialized. A possible fix would be to reintroduce the mess which allocates a package data structure in CPU prepare and when it turns out to already exist in starting throw it away later in the CPU online callback. But that's a horrible hack and not required at all because RAPL becomes functional for perf only in the CPU online callback. That's correct because user space is not yet informed about the CPU being onlined, so nothing caan rely on RAPL being available on that particular CPU. Move the allocation to the CPU online callback and simplify the hotplug handling. At this point the package mapping is established and correct. This also adds a missing check for available package data in the event_init() function. Reported-by: Yasuaki Ishimatsu <yasu.isimatu@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Stephane Eranian <eranian@google.com> Cc: Vince Weaver <vincent.weaver@maine.edu> Fixes: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust") Link: http://lkml.kernel.org/r/20170131230141.212593966@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/crypto/akcipher.h')