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From:   Maninder Singh <maninder1.s@samsung.com>
To:     bcain@quicinc.com, mpe@ellerman.id.au, npiggin@gmail.com,
        christophe.leroy@csgroup.eu, keescook@chromium.org,
        nathanl@linux.ibm.com, ustavoars@kernel.org, alex.gaynor@gmail.com,
        gary@garyguo.net, ojeda@kernel.org, pmladek@suse.com,
        wedsonaf@google.com
Cc:     linux-hexagon@vger.kernel.org, linux-kernel@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org,
        Maninder Singh <maninder1.s@samsung.com>,
        Onkarnath <onkarnath.1@samsung.com>
Subject: [PATCH 1/1] arch:hexagon/powerpc: use KSYM_NAME_LEN in array size
Date:   Mon, 29 May 2023 10:58:21 +0530
Message-Id: <20230529052821.58175-1-maninder1.s@samsung.com>
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References: <CGME20230529052832epcas5p4fa1b8cf25d9810d32bd2ccf012086fb3@epcas5p4.samsung.com>
Precedence: bulk

kallsyms_lookup which in turn calls for kallsyms_lookup_buildid()
writes on index "KSYM_NAME_LEN - 1".

Thus array size should be KSYM_NAME_LEN.

for powerpc and hexagon it was defined as "128" directly.
and commit '61968dbc2d5d' changed define value to 512,
So both were missed to update with new size.

Fixes: 61968dbc2d5d ("kallsyms: increase maximum kernel symbol length to 512")
Signed-off-by: Onkarnath <onkarnath.1@samsung.com>
Signed-off-by: Maninder Singh <maninder1.s@samsung.com>
---
 arch/hexagon/kernel/traps.c | 2 +-
 arch/powerpc/xmon/xmon.c    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/hexagon/kernel/traps.c b/arch/hexagon/kernel/traps.c
index 6447763ce5a9..65b30b6ea226 100644
--- a/arch/hexagon/kernel/traps.c
+++ b/arch/hexagon/kernel/traps.c
@@ -82,7 +82,7 @@ static void do_show_stack(struct task_struct *task, unsigned long *fp,
 	const char *name = NULL;
 	unsigned long *newfp;
 	unsigned long low, high;
-	char tmpstr[128];
+	char tmpstr[KSYM_NAME_LEN];
 	char *modname;
 	int i;
 
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 728d3c257e4a..70c4c59a1a8f 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -88,7 +88,7 @@ static unsigned long ndump = 64;
 static unsigned long nidump = 16;
 static unsigned long ncsum = 4096;
 static int termch;
-static char tmpstr[128];
+static char tmpstr[KSYM_NAME_LEN];
 static int tracing_enabled;
 
 static long bus_error_jmp[JMP_BUF_LEN];
-- 
2.17.1