linux-kernel - [PATCH] Kbuild: Handle too long symbols in kallsyms.c

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Message-Id: <1547765160-15502-1-git-send-email-eugene.loh@oracle.com>
Date:   Thu, 17 Jan 2019 14:46:00 -0800
From:   eugene.loh@...cle.com
To:     linux-kernel@...r.kernel.org, ard.biesheuvel@...aro.org,
        ak@...ux.intel.com, andi@...stfloor.org
Subject: [PATCH] Kbuild: Handle too long symbols in kallsyms.c

From: Eugene Loh <eugene.loh@...cle.com>

When checking for symbols with excessively long names,
account for null terminating character.

Fixes: f3462aa952cf ("Kbuild: Handle longer symbols in kallsyms.c")
Signed-off-by: Eugene Loh <eugene.loh@...cle.com>
---
 scripts/kallsyms.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index 77cebad..f75e7bd 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -118,8 +118,8 @@ static int read_symbol(FILE *in, struct sym_entry *s)
 			fprintf(stderr, "Read error or end of file.\n");
 		return -1;
 	}
-	if (strlen(sym) > KSYM_NAME_LEN) {
-		fprintf(stderr, "Symbol %s too long for kallsyms (%zu vs %d).\n"
+	if (strlen(sym) >= KSYM_NAME_LEN) {
+		fprintf(stderr, "Symbol %s too long for kallsyms (%zu >= %d).\n"
 				"Please increase KSYM_NAME_LEN both in kernel and kallsyms.c\n",
 			sym, strlen(sym), KSYM_NAME_LEN);
 		return -1;
-- 
1.8.3.1