linux-kernel - [PATCH 1/1] kbuild: Optimize tests and remove shadowed local variable.

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Date:   Tue, 18 Sep 2018 20:00:02 -0300
From:   Leonardo Brás <leobras.c@...il.com>
To:     Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH 1/1] kbuild: Optimize tests and remove shadowed local
 variable.

Removes an unnecessary shadowed local variable (start).
Optimize test of isdigit:
- If isalpha returns true, isdigit will return false, so no need to test.

Signed-off-by: Leonardo Brás <leobras.c@...il.com>
---
 scripts/asn1_compiler.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/scripts/asn1_compiler.c b/scripts/asn1_compiler.c
index c146020fc783..a0056df4e358 100644
--- a/scripts/asn1_compiler.c
+++ b/scripts/asn1_compiler.c
@@ -413,7 +413,7 @@ static void tokenise(char *buffer, char *end)
 
 			/* Handle string tokens */
 			if (isalpha(*p)) {
-				const char **dir, *start = p;
+				const char **dir;
 
 				/* Can be a directive, type name or element
 				 * name.  Find the end of the name.
@@ -454,10 +454,10 @@ static void tokenise(char *buffer, char *end)
 
 				tokens[tix++].token_type = TOKEN_TYPE_NAME;
 				continue;
-			}
 
-			/* Handle numbers */
-			if (isdigit(*p)) {
+			} else if (isdigit(*p)) {
+				/* Handle numbers */
+
 				/* Find the end of the number */
 				q = p + 1;
 				while (q < nl && (isdigit(*q)))
-- 
2.19.0