/* * upd6408x - NEC Electronics 3-Dimensional Y/C separation input defines * * 2006 by Hans Verkuil (hverkuil@xs4all.nl) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef _UPD64083_H_ #define _UPD64083_H_ /* There are two bits of information that the driver needs in order to select the correct routing: the operating mode and the selection of the Y input (external or internal). The first two operating modes expect a composite signal on the Y input, the second two operating modes use both the Y and C inputs. Normally YCS_MODE is used for tuner and composite inputs, and the YCNR mode is used for S-Video inputs. The external Y-ADC is selected when the composite input comes from a upd64031a ghost reduction device. If this device is not present, or the input is a S-Video signal, then the internal Y-ADC input should be used. */ /* Operating modes: */ /* YCS mode: Y/C separation (burst locked clocking) */ #define UPD64083_YCS_MODE 0 /* YCS+ mode: 2D Y/C separation and YCNR (burst locked clocking) */ #define UPD64083_YCS_PLUS_MODE 1 /* Note: the following two modes cannot be used in combination with the external Y-ADC. */ /* MNNR mode: frame comb type YNR+C delay (line locked clocking) */ #define UPD64083_MNNR_MODE 2 /* YCNR mode: frame recursive YCNR (burst locked clocking) */ #define UPD64083_YCNR_MODE 3 /* Select external Y-ADC: this should be set if this device is used in combination with the upd64031a ghost reduction device. Otherwise leave at 0 (use internal Y-ADC). */ #define UPD64083_EXT_Y_ADC (1 << 2) #endif m'>
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authorAndrei Vagin <avagin@openvz.org>2017-01-04 19:28:14 -0800
committerEric W. Biederman <ebiederm@xmission.com>2017-01-10 13:34:56 +1300
commitadd7c65ca426b7a37184dd3d2172394e23d585d6 (patch)
tree28b08b519540041b06ed0ab0b1c005076b932e8e /include/misc/cxl.h
parent75422726b0f717d67db3283c2eb5bc14fa2619c5 (diff)
pid: fix lockdep deadlock warning due to ucount_lock
========================================================= [ INFO: possible irq lock inversion dependency detected ] 4.10.0-rc2-00024-g4aecec9-dirty #118 Tainted: G W --------------------------------------------------------- swapper/1/0 just changed the state of lock: (&(&sighand->siglock)->rlock){-.....}, at: [<ffffffffbd0a1bc6>] __lock_task_sighand+0xb6/0x2c0 but this lock took another, HARDIRQ-unsafe lock in the past: (ucounts_lock){+.+...} and interrupts could create inverse lock ordering between them. other info that might help us debug this: Chain exists of: &(&sighand->siglock)->rlock --> &(&tty->ctrl_lock)->rlock --> ucounts_lock Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(ucounts_lock); local_irq_disable(); lock(&(&sighand->siglock)->rlock); lock(&(&tty->ctrl_lock)->rlock); <Interrupt> lock(&(&sighand->siglock)->rlock); *** DEADLOCK *** This patch removes a dependency between rlock and ucount_lock. Fixes: f333c700c610 ("pidns: Add a limit on the number of pid namespaces") Cc: stable@vger.kernel.org Signed-off-by: Andrei Vagin <avagin@openvz.org> Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'include/misc/cxl.h')