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From: SF Markus Elfring <elfring@users.sourceforge.net>
To: linux-s390@vger.kernel.org,
	David Hildenbrand <dahi@linux.vnet.ibm.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Joe Perches <joe@perches.com>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
	kernel-janitors@vger.kernel.org,
	Julia Lawall <julia.lawall@lip6.fr>,
	Paolo Bonzini <pbonzini@redhat.com>
Subject: [PATCH 14/17] s390/debug: Improve a size determination in debug_sprintf_format_fn()
Date: Sat, 3 Sep 2016 14:34:09 +0200	[thread overview]
Message-ID: <40fd0234-45c3-6856-43b3-c7528a794e8e@users.sourceforge.net> (raw)
In-Reply-To: <e4359dc9-9e20-e33b-9743-9ebade853268@users.sourceforge.net>

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Fri, 2 Sep 2016 14:32:08 +0200

Replace a multiplication by a reference for a local array variable
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 arch/s390/kernel/debug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c
index 32ceb5e..6792a9c 100644
--- a/arch/s390/kernel/debug.c
+++ b/arch/s390/kernel/debug.c
@@ -1486,7 +1486,7 @@ debug_sprintf_format_fn(debug_info_t * id, struct debug_view *view,
 	/* number of arguments used for sprintf (without the format string) */
 	num_used_args   = min(DEBUG_SPRINTF_MAX_ARGS, (num_longs - 1));
 
-	memset(index, 0, DEBUG_SPRINTF_MAX_ARGS * sizeof(int));
+	memset(index, 0, sizeof(index));
 
 	for (i = 0; i < num_used_args; i++)
 		index[i] = i;
-- 
2.9.3

  parent reply	other threads:[~2016-09-03 12:34 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <566ABCD9.1060404@users.sourceforge.net>
2016-01-03 10:00 ` [PATCH 0/2] 390/qeth: Fine-tuning for qeth_core_set_online() SF Markus Elfring
2016-01-03 10:02   ` [PATCH 1/2] 390/qeth: Delete an unnecessary variable initialisation in qeth_core_set_online() SF Markus Elfring
2016-01-04 11:29     ` Heiko Carstens
2016-01-07 14:33     ` Ursula Braun
2016-01-08  7:18       ` SF Markus Elfring
2016-01-08  8:25         ` Ursula Braun
2016-01-08 12:00           ` SF Markus Elfring
2016-01-03 10:02   ` [PATCH 2/2] 390/qeth: Refactoring for qeth_core_set_online() SF Markus Elfring
2016-01-04 11:30     ` Heiko Carstens
2016-01-04 13:10       ` SF Markus Elfring
2016-01-04 14:04         ` Heiko Carstens
2016-01-04 14:10           ` SF Markus Elfring
2016-01-05  7:54             ` Heiko Carstens
2016-08-20 17:32 ` [PATCH] s390/tape: Use memdup_user() rather than duplicating its implementation SF Markus Elfring
2016-08-22  6:24   ` Martin Schwidefsky
2016-09-03 12:04 ` [PATCH 00/17] s390/debug: Fine-tuning for several function implementations SF Markus Elfring
2016-09-03 12:10   ` [PATCH 01/17] s390/debug: Use kmalloc_array() in debug_areas_alloc() SF Markus Elfring
2016-09-03 12:13   ` [PATCH 02/17] s390/debug: Delete unnecessary braces SF Markus Elfring
2016-09-03 12:14   ` [PATCH 03/17] s390/debug: Add some spaces for better code readability SF Markus Elfring
2016-09-03 12:16   ` [PATCH 04/17] s390/debug: Rename jump labels in debug_areas_alloc() SF Markus Elfring
2016-09-03 12:18   ` [PATCH 05/17] s390/debug: Fix jump targets in debug_info_alloc() SF Markus Elfring
2016-09-03 12:20   ` [PATCH 06/17] s390/debug: Rename jump labels in debug_info_copy() SF Markus Elfring
2016-09-03 12:21   ` [PATCH 07/17] s390/debug: Rename jump labels in debug_open() SF Markus Elfring
2016-09-03 12:23   ` [PATCH 08/17] s390/debug: Fix a jump target in debug_register_mode() SF Markus Elfring
2016-09-03 12:24   ` [PATCH 09/17] s390/debug: Return directly if a null pointer was passed to debug_unregister() SF Markus Elfring
2016-09-03 12:42     ` walter harms
2016-09-03 12:26   ` [PATCH 10/17] s390/debug: Delete an unnecessary initialisation in debug_prolog_level_fn() SF Markus Elfring
2016-09-03 12:28   ` [PATCH 11/17] s390/debug: Fix indentation in 13 functions SF Markus Elfring
2016-09-03 12:30   ` [PATCH 12/17] s390/debug: Use memdup_user() rather than duplicating its implementation SF Markus Elfring
2016-09-03 13:10     ` kbuild test robot
2016-09-03 12:32   ` [PATCH 13/17] s390/debug: Improve a size determination in debug_open() SF Markus Elfring
2016-09-03 12:34   ` SF Markus Elfring [this message]
2016-09-03 12:36   ` [PATCH 15/17] s390/debug: Improve a size determination in debug_raw_header_fn() SF Markus Elfring
2016-09-03 12:38   ` [PATCH 16/17] s390/debug: Improve determination of sizes in debug_info_alloc() SF Markus Elfring
2016-09-03 12:40   ` [PATCH 17/17] s390/debug: Improve another size determination " SF Markus Elfring
2016-09-05 10:31   ` [PATCH 00/17] s390/debug: Fine-tuning for several function implementations Martin Schwidefsky
2016-09-05 10:40     ` SF Markus Elfring
2016-09-09 16:50     ` SF Markus Elfring

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