1 /* 2 * Copyright (c) 2020 François Tigeot <ftigeot@wolfpond.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice unmodified, this list of conditions, and the following 10 * disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTIRQ_WORKUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef _LINUX_IRQ_WORK_H_ 28 #define _LINUX_IRQ_WORK_H_ 29 30 #include <linux/llist.h> 31 32 #include <linux/workqueue.h> 33 34 struct irq_work { 35 struct work_struct ws; 36 }; 37 38 static inline void 39 init_irq_work(struct irq_work *work, void (*func)(struct irq_work *)) 40 { 41 INIT_WORK(&work->ws, (void (*)(struct work_struct *))func); 42 } 43 44 static inline bool 45 irq_work_queue(struct irq_work *work) 46 { 47 /* XXX: irq_works are supposed to be processed in hardirq context */ 48 queue_work(system_highpri_wq, &work->ws); 49 50 return true; 51 } 52 53 #endif /* _LINUX_IRQ_WORK_H_ */ 54