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Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 101 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190113.822954939@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
40 lines
934 B
C
40 lines
934 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* aQuantia Corporation Network Driver
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* Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved
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*/
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/* File aq_utils.h: Useful macro and structures used in all layers of driver. */
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#ifndef AQ_UTILS_H
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#define AQ_UTILS_H
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#include "aq_common.h"
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static inline void aq_utils_obj_set(atomic_t *flags, u32 mask)
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{
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unsigned long flags_old, flags_new;
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do {
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flags_old = atomic_read(flags);
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flags_new = flags_old | (mask);
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} while (atomic_cmpxchg(flags, flags_old, flags_new) != flags_old);
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}
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static inline void aq_utils_obj_clear(atomic_t *flags, u32 mask)
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{
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unsigned long flags_old, flags_new;
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do {
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flags_old = atomic_read(flags);
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flags_new = flags_old & ~(mask);
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} while (atomic_cmpxchg(flags, flags_old, flags_new) != flags_old);
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}
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static inline bool aq_utils_obj_test(atomic_t *flags, u32 mask)
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{
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return atomic_read(flags) & mask;
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}
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#endif /* AQ_UTILS_H */
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