#ifndef __ASM_GENERIC_MSI_H #define __ASM_GENERIC_MSI_H #include #ifndef NUM_MSI_ALLOC_SCRATCHPAD_REGS # define NUM_MSI_ALLOC_SCRATCHPAD_REGS 2 #endif struct msi_desc; /** * struct msi_alloc_info - Default structure for MSI interrupt allocation. * @desc: Pointer to msi descriptor * @hwirq: Associated hw interrupt number in the domain * @scratchpad: Storage for implementation specific scratch data * * Architectures can provide their own implementation by not including * asm-generic/msi.h into their arch specific header file. */ typedef struct msi_alloc_info { struct msi_desc *desc; irq_hw_number_t hwirq; union { unsigned long ul; void *ptr; } scratchpad[NUM_MSI_ALLOC_SCRATCHPAD_REGS]; } msi_alloc_info_t; #define GENERIC_MSI_DOMAIN_OPS 1 #endif ' alt='cgit logo'/> index : net-next.git
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authorTejun Heo <tj@kernel.org>2017-01-26 16:47:28 -0500
committerTejun Heo <tj@kernel.org>2017-01-26 16:47:28 -0500
commit07cd12945551b63ecb1a349d50a6d69d1d6feb4a (patch)
tree75f65eba7eac9277971082a2d5a4cf1370562c0c /include/dt-bindings/mfd/st-lpc.h
parent7ce7d89f48834cefece7804d38fc5d85382edf77 (diff)
cgroup: don't online subsystems before cgroup_name/path() are operational
While refactoring cgroup creation, a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") incorrectly onlined subsystems before the new cgroup is associated with it kernfs_node. This is fine for cgroup proper but cgroup_name/path() depend on the associated kernfs_node and if a subsystem makes the new cgroup_subsys_state visible, which they're allowed to after onlining, it can lead to NULL dereference. The current code performs cgroup creation and subsystem onlining in cgroup_create() and cgroup_mkdir() makes the cgroup and subsystems visible afterwards. There's no reason to online the subsystems early and we can simply drop cgroup_apply_control_enable() call from cgroup_create() so that the subsystems are onlined and made visible at the same time. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Fixes: a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") Cc: stable@vger.kernel.org # v4.6+
Diffstat (limited to 'include/dt-bindings/mfd/st-lpc.h')