From 0a82edd011f5cd3de1eded8fe1d78cef370b2083 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 4 Mar 2016 21:06:43 -0300 Subject: [PATCH] [media] hide unused functions for !MEDIA_CONTROLLER Some functions in the au0828 driver are only used when CONFIG_MEDIA_CONTROLLER is enabled, and otherwise defined as empty functions: media/usb/au0828/au0828-core.c:208:13: error: 'au0828_media_graph_notify' defined but not used [-Werror=unused-function] media/usb/au0828/au0828-core.c:262:12: error: 'au0828_enable_source' defined but not used [-Werror=unused-function] media/usb/au0828/au0828-core.c:412:13: error: 'au0828_disable_source' defined but not used [-Werror=unused-function] This moves the #ifdef so the entire definitions are hidden in this case. [mchehab@osg.samsung.com: As pointed by Shuah Khan, a return 0 can be removed] Signed-off-by: Arnd Bergmann Signed-off-by: Mauro Carvalho Chehab --- drivers/media/usb/au0828/au0828-core.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/drivers/media/usb/au0828/au0828-core.c b/drivers/media/usb/au0828/au0828-core.c index 4ffaa3b2e905..7fc3dba5e2b6 100644 --- a/drivers/media/usb/au0828/au0828-core.c +++ b/drivers/media/usb/au0828/au0828-core.c @@ -205,10 +205,10 @@ static int au0828_media_device_init(struct au0828_dev *dev, return 0; } +#ifdef CONFIG_MEDIA_CONTROLLER static void au0828_media_graph_notify(struct media_entity *new, void *notify_data) { -#ifdef CONFIG_MEDIA_CONTROLLER struct au0828_dev *dev = (struct au0828_dev *) notify_data; int ret; struct media_entity *entity, *mixer = NULL, *decoder = NULL; @@ -256,13 +256,11 @@ create_link: dev_err(&dev->usbdev->dev, "Mixer Pad Link Create Error: %d\n", ret); } -#endif } static int au0828_enable_source(struct media_entity *entity, struct media_pipeline *pipe) { -#ifdef CONFIG_MEDIA_CONTROLLER struct media_entity *source, *find_source; struct media_entity *sink; struct media_link *link, *found_link = NULL; @@ -405,13 +403,10 @@ end: pr_debug("au0828_enable_source() end %s %d %d\n", entity->name, entity->function, ret); return ret; -#endif - return 0; } static void au0828_disable_source(struct media_entity *entity) { -#ifdef CONFIG_MEDIA_CONTROLLER int ret = 0; struct media_device *mdev = entity->graph_obj.mdev; struct au0828_dev *dev; @@ -453,8 +448,8 @@ static void au0828_disable_source(struct media_entity *entity) end: mutex_unlock(&mdev->graph_mutex); -#endif } +#endif static int au0828_media_device_register(struct au0828_dev *dev, struct usb_device *udev) -- 2.20.1