disp: msm: avoid using #ifdef for configurations

Use #if IS_ENABLED() instead of #ifdef for configurations as vendor module
guidelines.

Use #if IS_ENABLED(CONFIG_XXX) instead of #ifdef CONFIG_XXX to ensure that
the code inside the #if block continues to compile if the config changes
to a tristate config in the future.

The differences are as follows:
	1.#if IS_ENABLED(CONFIG_XXX) evaluates to true when CONFIG_XXX is set to
		module (=m) or built-in (=y).
	2.#ifdef CONFIG_XXX evaluates to true when CONFIG_XXX is set to
		built-in(=y) , but doesn't when CONFIG_XXX is set to module(=m).
		Use this only when you're certain you want to do the same thing
		when the config is set to module or is disabled.

Change-Id: Ia806b9b01ad8414d0e4de027a382cb68e7fb4a6a
Signed-off-by: GG Hou <quic_renjhou@quicinc.com>
This commit is contained in:
GG Hou
2021-12-07 16:10:51 +08:00
parent f42f39e4f8
commit e29493c71d
29 changed files with 97 additions and 82 deletions

View File

@@ -85,7 +85,7 @@ static const struct of_device_id msm_dsi_of_match[] = {
{}
};
#ifdef CONFIG_DEBUG_FS
#if IS_ENABLED(CONFIG_DEBUG_FS)
static ssize_t debugfs_state_info_read(struct file *file,
char __user *buff,
size_t count,