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# Qualcomm IPC Router configuration
#

config QRTR
	tristate "Qualcomm IPC Router support"
	depends on ARCH_QCOM || COMPILE_TEST
	---help---
	  Say Y if you intend to use Qualcomm IPC router protocol.  The
	  protocol is used to communicate with services provided by other
	  hardware blocks in the system.

	  In order to do service lookups, a userspace daemon is required to
	  maintain a service listing.

if QRTR

config QRTR_SMD
	tristate "SMD IPC Router channels"
	depends on QCOM_SMD || (COMPILE_TEST && QCOM_SMD=n)
	---help---
	  Say Y here to support SMD based ipcrouter channels.  SMD is the
	  most common transport for IPC Router.

endif # QRTR
1300 commitadd7c65ca426b7a37184dd3d2172394e23d585d6 (patch) tree28b08b519540041b06ed0ab0b1c005076b932e8e /include/uapi/rdma/hns-abi.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/uapi/rdma/hns-abi.h')