/* 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. */ #ifndef __CMTP_H #define __CMTP_H #include #include #define BTNAMSIZ 18 /* CMTP ioctl defines */ #define CMTPCONNADD _IOW('C', 200, int) #define CMTPCONNDEL _IOW('C', 201, int) #define CMTPGETCONNLIST _IOR('C', 210, int) #define CMTPGETCONNINFO _IOR('C', 211, int) #define CMTP_LOOPBACK 0 struct cmtp_connadd_req { int sock; /* Connected socket */ __u32 flags; }; struct cmtp_conndel_req { bdaddr_t bdaddr; __u32 flags; }; struct cmtp_conninfo { bdaddr_t bdaddr; __u32 flags; __u16 state; int num; }; struct cmtp_connlist_req { __u32 cnum; struct cmtp_conninfo __user *ci; }; int cmtp_add_connection(struct cmtp_connadd_req *req, struct socket *sock); int cmtp_del_connection(struct cmtp_conndel_req *req); int cmtp_get_connlist(struct cmtp_connlist_req *req); int cmtp_get_conninfo(struct cmtp_conninfo *ci); /* CMTP session defines */ #define CMTP_INTEROP_TIMEOUT (HZ * 5) #define CMTP_INITIAL_MSGNUM 0xff00 struct cmtp_session { struct list_head list; struct socket *sock; bdaddr_t bdaddr; unsigned long state; unsigned long flags; uint mtu; char name[BTNAMSIZ]; atomic_t terminate; struct task_struct *task; wait_queue_head_t wait; int ncontroller; int num; struct capi_ctr ctrl; struct list_head applications; unsigned long blockids; int msgnum; struct sk_buff_head transmit; struct sk_buff *reassembly[16]; }; struct cmtp_application { struct list_head list; unsigned long state; int err; __u16 appl; __u16 mapping; __u16 msgnum; }; struct cmtp_scb { int id; int data; }; int cmtp_attach_device(struct cmtp_session *session); void cmtp_detach_device(struct cmtp_session *session); void cmtp_recv_capimsg(struct cmtp_session *session, struct sk_buff *skb); /* CMTP init defines */ int cmtp_init_sockets(void); void cmtp_cleanup_sockets(void); #endif /* __CMTP_H */ git.cgi/linux/net-next.git/commit/?h=nds-private-remove&id=54791b276b4000b307339f269d3bf7db877d536f'>root/drivers/usb/host/ehci-tegra.c
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authorDavid S. Miller <davem@davemloft.net>2017-01-30 14:28:22 -0800
committerDavid S. Miller <davem@davemloft.net>2017-01-30 14:28:22 -0800
commit54791b276b4000b307339f269d3bf7db877d536f (patch)
tree1c2616bd373ce5ea28aac2a53e32f5b5834901ce /drivers/usb/host/ehci-tegra.c
parent5d0e7705774dd412a465896d08d59a81a345c1e4 (diff)
parent047487241ff59374fded8c477f21453681f5995c (diff)
Merge branch 'sparc64-non-resumable-user-error-recovery'
Liam R. Howlett says: ==================== sparc64: Recover from userspace non-resumable PIO & MEM errors A non-resumable error from userspace is able to cause a kernel panic or trap loop due to the setup and handling of the queued traps once in the kernel. This patch series addresses both of these issues. The queues are fixed by simply zeroing the memory before use. PIO errors from userspace will result in a SIGBUS being sent to the user process. The MEM errors form userspace will result in a SIGKILL and also cause the offending pages to be claimed so they are no longer used in future tasks. SIGKILL is used to ensure that the process does not try to coredump and result in an attempt to read the memory again from within kernel space. Although there is a HV call to scrub the memory (mem_scrub), there is no easy way to guarantee that the real memory address(es) are not used by other tasks. Clearing the error with mem_scrub would zero the memory and cause the other processes to proceed with bad data. The handling of other non-resumable errors remain unchanged and will cause a panic. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/usb/host/ehci-tegra.c')