linux-kernel - [PATCH 18/19] APEI GHES: 32-bit buildfix

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-id: <2c39c2e0b2d8414cfd8b9067ed1c3aac4ed303c1.1312323131.git.len.brown@intel.com>
Date:	Tue, 02 Aug 2011 18:14:51 -0400
From:	Len Brown <lenb@...nel.org>
To:	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org
Cc:	Len Brown <len.brown@...el.com>
Subject: [PATCH 18/19] APEI GHES: 32-bit buildfix

From: Len Brown <len.brown@...el.com>

drivers/acpi/apei/ghes.c:542: warning: integer overflow in expression
drivers/acpi/apei/ghes.c:619: warning: integer overflow in expression

ghes.c:(.text+0x46289): undefined reference to `__udivdi3'
  in function ghes_estatus_cache_add().

Reported-by: Randy Dunlap <rdunlap@...otime.net>
Signed-off-by: Len Brown <len.brown@...el.com>
---
 drivers/acpi/apei/ghes.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index e92c47c..0784f99 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -65,7 +65,7 @@
 
 #define GHES_ESTATUS_CACHES_SIZE	4
 
-#define GHES_ESTATUS_IN_CACHE_MAX_NSEC	(10 * NSEC_PER_SEC)
+#define GHES_ESTATUS_IN_CACHE_MAX_NSEC	10000000000ULL
 /* Prevent too many caches are allocated because of RCU */
 #define GHES_ESTATUS_CACHE_ALLOCED_MAX	(GHES_ESTATUS_CACHES_SIZE * 3 / 2)
 
@@ -622,7 +622,8 @@ static void ghes_estatus_cache_add(
 			break;
 		}
 		count = atomic_read(&cache->count);
-		period = duration / (count + 1);
+		period = duration;
+		do_div(period, (count + 1));
 		if (period > max_period) {
 			max_period = period;
 			slot = i;
-- 
1.7.6.396.ge0613

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/