ARM: 7409/1: Do not call flush_cache_user_range with mmap_sem held
[linux/fpc-iii.git] / drivers / net / bna / bfa_wc.h
blobd0e4caee67b05f2546d7eb8e25991dec9e690e41
1 /*
2 * Linux network driver for Brocade Converged Network Adapter.
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License (GPL) Version 2 as
6 * published by the Free Software Foundation
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
14 * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
15 * All rights reserved
16 * www.brocade.com
19 /**
20 * @file bfa_wc.h Generic wait counter.
23 #ifndef __BFA_WC_H__
24 #define __BFA_WC_H__
26 typedef void (*bfa_wc_resume_t) (void *cbarg);
28 struct bfa_wc {
29 bfa_wc_resume_t wc_resume;
30 void *wc_cbarg;
31 int wc_count;
34 static inline void
35 bfa_wc_up(struct bfa_wc *wc)
37 wc->wc_count++;
40 static inline void
41 bfa_wc_down(struct bfa_wc *wc)
43 wc->wc_count--;
44 if (wc->wc_count == 0)
45 wc->wc_resume(wc->wc_cbarg);
48 /**
49 * Initialize a waiting counter.
51 static inline void
52 bfa_wc_init(struct bfa_wc *wc, bfa_wc_resume_t wc_resume, void *wc_cbarg)
54 wc->wc_resume = wc_resume;
55 wc->wc_cbarg = wc_cbarg;
56 wc->wc_count = 0;
57 bfa_wc_up(wc);
60 /**
61 * Wait for counter to reach zero
63 static inline void
64 bfa_wc_wait(struct bfa_wc *wc)
66 bfa_wc_down(wc);
69 #endif