[PATCH] video/fbdev: refactor video= cmdline parsing

* [PATCH] video/fbdev: refactor video= cmdline parsing
@ 2019-01-23  9:38 Jani Nikula
  2019-01-23 10:58 ` Daniel Vetter
  0 siblings, 1 reply; 4+ messages in thread
From: Jani Nikula @ 2019-01-23  9:38 UTC (permalink / raw)
  To: linux-fbdev, dri-devel; +Cc: jani.nikula, Bartlomiej Zolnierkiewicz

Make the video_setup() function slightly easier to read by removing the
repeated checks for !global. Remove the misleading return value comment
while at it.

I'm slightly hesitant to change any of this, but here goes anyway, with
hopes that the next person to have to look at this has it a wee bit
easier.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---
 drivers/video/fbdev/core/fb_cmdline.c | 23 ++++++++++-------------
 1 file changed, 10 insertions(+), 13 deletions(-)

diff --git a/drivers/video/fbdev/core/fb_cmdline.c b/drivers/video/fbdev/core/fb_cmdline.c
index 39509ccd92f1..3b5bd666b952 100644
--- a/drivers/video/fbdev/core/fb_cmdline.c
+++ b/drivers/video/fbdev/core/fb_cmdline.c
@@ -75,36 +75,33 @@ EXPORT_SYMBOL(fb_get_options);
  *	NOTE: This function is a __setup and __init function.
  *            It only stores the options.  Drivers have to call
  *            fb_get_options() as necessary.
- *
- *	Returns zero.
- *
  */
 static int __init video_setup(char *options)
 {
-	int i, global = 0;
-
 	if (!options || !*options)
-		global = 1;
+		goto out;
 
-	if (!global && !strncmp(options, "ofonly", 6)) {
+	if (!strncmp(options, "ofonly", 6)) {
 		ofonly = 1;
-		global = 1;
+		goto out;
 	}
 
-	if (!global && !strchr(options, ':')) {
-		fb_mode_option = options;
-		global = 1;
-	}
+	if (strchr(options, ':')) {
+		/* named */
+		int i;
 
-	if (!global) {
 		for (i = 0; i < FB_MAX; i++) {
 			if (video_options[i] = NULL) {
 				video_options[i] = options;
 				break;
 			}
 		}
+	} else {
+		/* global */
+		fb_mode_option = options;
 	}
 
+out:
 	return 1;
 }
 __setup("video=", video_setup);
-- 
2.20.1

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