#ifndef __DRM_OF_H__ #define __DRM_OF_H__ #include struct component_master_ops; struct component_match; struct device; struct drm_device; struct drm_encoder; struct device_node; #ifdef CONFIG_OF extern uint32_t drm_of_find_possible_crtcs(struct drm_device *dev, struct device_node *port); extern void drm_of_component_match_add(struct device *master, struct component_match **matchptr, int (*compare)(struct device *, void *), struct device_node *node); extern int drm_of_component_probe(struct device *dev, int (*compare_of)(struct device *, void *), const struct component_master_ops *m_ops); extern int drm_of_encoder_active_endpoint(struct device_node *node, struct drm_encoder *encoder, struct of_endpoint *endpoint); #else static inline uint32_t drm_of_find_possible_crtcs(struct drm_device *dev, struct device_node *port) { return 0; } static inline void drm_of_component_match_add(struct device *master, struct component_match **matchptr, int (*compare)(struct device *, void *), struct device_node *node) { } static inline int drm_of_component_probe(struct device *dev, int (*compare_of)(struct device *, void *), const struct component_master_ops *m_ops) { return -EINVAL; } static inline int drm_of_encoder_active_endpoint(struct device_node *node, struct drm_encoder *encoder, struct of_endpoint *endpoint) { return -EINVAL; } #endif static inline int drm_of_encoder_active_endpoint_id(struct device_node *node, struct drm_encoder *encoder) { struct of_endpoint endpoint; int ret = drm_of_encoder_active_endpoint(node, encoder, &endpoint); return ret ?: endpoint.id; } static inline int drm_of_encoder_active_port_id(struct device_node *node, struct drm_encoder *encoder) { struct of_endpoint endpoint; int ret = drm_of_encoder_active_endpoint(node, encoder, &endpoint); return ret ?: endpoint.port; } #endif /* __DRM_OF_H__ */ ?h=nds-private-remove&id=662ec2b7e842c0bb1ef482060497c44afa3f1037'>commitdiff
path: root/include/crypto/chacha20.h
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authorThomas Gleixner <tglx@linutronix.de>2017-01-31 09:37:34 +0100
committerThomas Gleixner <tglx@linutronix.de>2017-01-31 21:47:58 +0100
commit0becc0ae5b42828785b589f686725ff5bc3b9b25 (patch)
treebe6d0e1f37c38ed0a7dd5da2d4b1e93f0fb43101 /include/acpi/pcc.h
parent24c2503255d35c269b67162c397a1a1c1e02f6ce (diff)
x86/mce: Make timer handling more robust
Erik reported that on a preproduction hardware a CMCI storm triggers the BUG_ON in add_timer_on(). The reason is that the per CPU MCE timer is started by the CMCI logic before the MCE CPU hotplug callback starts the timer with add_timer_on(). So the timer is already queued which triggers the BUG. Using add_timer_on() is pretty pointless in this code because the timer is strictlty per CPU, initialized as pinned and all operations which arm the timer happen on the CPU to which the timer belongs. Simplify the whole machinery by using mod_timer() instead of add_timer_on() which avoids the problem because mod_timer() can handle already queued timers. Use __start_timer() everywhere so the earliest armed expiry time is preserved. Reported-by: Erik Veijola <erik.veijola@intel.com> Tested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Borislav Petkov <bp@alien8.de> Cc: Tony Luck <tony.luck@intel.com> Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701310936080.3457@nanos Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/acpi/pcc.h')