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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: Maninder Singh <maninder1.s@samsung.com>,
	linux-hexagon@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	linux-kernel@vger.kernel.org, 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	[thread overview]
Message-ID: <20230529052821.58175-1-maninder1.s@samsung.com> (raw)
In-Reply-To: CGME20230529052832epcas5p4fa1b8cf25d9810d32bd2ccf012086fb3@epcas5p4.samsung.com

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


       reply	other threads:[~2023-05-29  5:52 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20230529052832epcas5p4fa1b8cf25d9810d32bd2ccf012086fb3@epcas5p4.samsung.com>
2023-05-29  5:28 ` Maninder Singh [this message]
2023-05-29 10:45   ` [PATCH 1/1] arch:hexagon/powerpc: use KSYM_NAME_LEN in array size Miguel Ojeda
     [not found]   ` <CGME20230529052832epcas5p4fa1b8cf25d9810d32bd2ccf012086fb3@epcms5p1>
2023-05-29 10:57     ` Maninder Singh
2023-05-29 14:50       ` Miguel Ojeda
2023-05-30  8:06         ` Petr Mladek
     [not found]         ` <CGME20230529052832epcas5p4fa1b8cf25d9810d32bd2ccf012086fb3@epcms5p8>
2023-05-30  8:14           ` Maninder Singh
2023-05-30 23:14         ` Kees Cook
2023-06-18 14:20           ` Miguel Ojeda

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