[PATCH] init/main.c: simplify repair_env_string

[Michal Suchanek <msuchanek@suse.de>]

Quoting characters are now removed from the parameter so value always
follows directly after the NUL terminating parameter name.

Signed-off-by: Michal Suchanek <msuchanek@suse.de>
---
 init/main.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

Since the previous "[PATCH v9 3/8] lib/cmdline.c: add backslash support to
kernel commandline parsing" adds the memmove in lib/cmdline.c it is now
superfluous in init/main.c

diff --git a/init/main.c b/init/main.c
index 1f5fdedbb293..1e5b1dc940d9 100644
--- a/init/main.c
+++ b/init/main.c
@@ -244,15 +244,10 @@ static int __init repair_env_string(char *param, char *val,
 				    const char *unused, void *arg)
 {
 	if (val) {
-		/* param=val or param="val"? */
-		if (val == param+strlen(param)+1)
-			val[-1] = '=';
-		else if (val == param+strlen(param)+2) {
-			val[-2] = '=';
-			memmove(val-1, val, strlen(val)+1);
-			val--;
-		} else
-			BUG();
+		int parm_len = strlen(param);
+
+		param[parm_len] = '=';
+		BUG_ON(val != param + parm_len + 1);
 	}
 	return 0;
 }
-- 
2.13.6