From a785115b6e79cfd9e8f2444c2acde072af36b233 Mon Sep 17 00:00:00 2001 From: Anson Huang Date: Fri, 18 Sep 2015 23:55:00 +0800 Subject: [PATCH] MLK-11566-5 drvier: imx_sema4: add dummy function When CONFIG_IMX_SEMA4 is NOT set, some modules may still call SEMA4 APIs, need to add dummy function to make sure build pass. Signed-off-by: Anson Huang (cherry picked from commit 5a2537095621da25c8967a0ccdbb8b0029e14c94) --- include/linux/imx_sema4.h | 21 ++++++++++++++++++++- 1 file changed, 20 insertions(+), 1 deletion(-) diff --git a/include/linux/imx_sema4.h b/include/linux/imx_sema4.h index 83f319f805e9..fe4808908f77 100644 --- a/include/linux/imx_sema4.h +++ b/include/linux/imx_sema4.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2014 Freescale Semiconductor, Inc. + * Copyright (C) 2014-2015 Freescale Semiconductor, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -57,8 +57,27 @@ struct imx_sema4_mutex_device { struct imx_sema4_mutex * imx_sema4_mutex_create(u32 dev_num, u32 mutex_num); +#ifdef CONFIG_IMX_SEMA4 int imx_sema4_mutex_destroy(struct imx_sema4_mutex *mutex_ptr); int imx_sema4_mutex_trylock(struct imx_sema4_mutex *mutex_ptr); int imx_sema4_mutex_lock(struct imx_sema4_mutex *mutex_ptr); int imx_sema4_mutex_unlock(struct imx_sema4_mutex *mutex_ptr); +#else +static inline int imx_sema4_mutex_destroy(struct imx_sema4_mutex *mutex_ptr) +{ + return 0; +} +static inline int imx_sema4_mutex_trylock(struct imx_sema4_mutex *mutex_ptr) +{ + return 0; +} +static inline int imx_sema4_mutex_lock(struct imx_sema4_mutex *mutex_ptr) +{ + return 0; +} +static inline int imx_sema4_mutex_unlock(struct imx_sema4_mutex *mutex_ptr) +{ + return 0; +} +#endif #endif /* __LINUX_IMX_SEMA4_H__ */ -- 2.17.1