[PATCH 4/4] usb: gadget: configfs: use to_usb_function_instance() in cfg (un)link func
From: Linyu Yuan <hidden>
Date: 2021-11-18 04:53:54
Subsystem:
the rest, usb subsystem · Maintainers:
Linus Torvalds, Greg Kroah-Hartman
replace open-coded container_of() with to_usb_function_instance() helper. Reviewed-by: Jack Pham <redacted> Signed-off-by: Linyu Yuan <redacted> --- drivers/usb/gadget/configfs.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c
index ff0fb33..d4a678c 100644
--- a/drivers/usb/gadget/configfs.c
+++ b/drivers/usb/gadget/configfs.c@@ -416,9 +416,8 @@ static int config_usb_cfg_link( struct config_usb_cfg *cfg = to_config_usb_cfg(usb_cfg_ci); struct gadget_info *gi = cfg_to_gadget_info(cfg); - struct config_group *group = to_config_group(usb_func_ci); - struct usb_function_instance *fi = container_of(group, - struct usb_function_instance, group); + struct usb_function_instance *fi = + to_usb_function_instance(usb_func_ci); struct usb_function_instance *a_fi; struct usb_function *f; int ret;
@@ -466,9 +465,8 @@ static void config_usb_cfg_unlink( struct config_usb_cfg *cfg = to_config_usb_cfg(usb_cfg_ci); struct gadget_info *gi = cfg_to_gadget_info(cfg); - struct config_group *group = to_config_group(usb_func_ci); - struct usb_function_instance *fi = container_of(group, - struct usb_function_instance, group); + struct usb_function_instance *fi = + to_usb_function_instance(usb_func_ci); struct usb_function *f; /*
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2.7.4