Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753604AbbFYKGS (ORCPT ); Thu, 25 Jun 2015 06:06:18 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:39830 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753125AbbFYKDh (ORCPT ); Thu, 25 Jun 2015 06:03:37 -0400 From: Luis Henriques To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Nick Meier , "K. Y. Srinivasan" , Greg Kroah-Hartman , Joseph Salisbury , Luis Henriques Subject: [PATCH 3.16.y-ckt 49/71] Drivers: hv: vmbus: Correcting truncation error for constant HV_CRASH_CTL_CRASH_NOTIFY Date: Thu, 25 Jun 2015 11:02:28 +0100 Message-Id: <1435226570-3669-50-git-send-email-luis.henriques@canonical.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1435226570-3669-1-git-send-email-luis.henriques@canonical.com> References: <1435226570-3669-1-git-send-email-luis.henriques@canonical.com> X-Extended-Stable: 3.16 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2387 Lines: 58 3.16.7-ckt14 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Nick Meier commit 5ef5b6927f14f29cacd78fa1fb861661a5367f13 upstream. HV_CRASH_CTL_CRASH_NOTIFY is a 64 bit number. Depending on the usage context, the value may be truncated. This patch is in response from the following email from Wu Fengguang : From: Wu Fengguang Subject: [char-misc:char-misc-testing 25/45] drivers/hv/vmbus_drv.c:67:9: sparse: constant 0x8000000000000000 is so big it is unsigned long tree: git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git char-misc-testing head: b3de8e3719e582f3182bb504295e4a8e43c8c96f commit: 96c1d0581d00f7abe033350edb021a9d947d8d81 [25/45] Drivers: hv: vmbus: Add support for VMBus panic notifier handler reproduce: # apt-get install sparse git checkout 96c1d0581d00f7abe033350edb021a9d947d8d81 make ARCH=x86_64 allmodconfig make C=1 CF=-D__CHECK_ENDIAN__ sparse warnings: (new ones prefixed by >>) drivers/hv/vmbus_drv.c:67:9: sparse: constant 0x8000000000000000 is so big it is unsigned long ... Signed-off-by: Nick Meier Reported-by: Wu Fengguang Signed-off-by: K. Y. Srinivasan Signed-off-by: Greg Kroah-Hartman Cc: Joseph Salisbury Signed-off-by: Luis Henriques --- drivers/hv/hyperv_vmbus.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h index 64318c03002a..ce49de72c0b3 100644 --- a/drivers/hv/hyperv_vmbus.h +++ b/drivers/hv/hyperv_vmbus.h @@ -58,7 +58,7 @@ enum hv_cpuid_function { #define HV_X64_MSR_CRASH_P4 0x40000104 #define HV_X64_MSR_CRASH_CTL 0x40000105 -#define HV_CRASH_CTL_CRASH_NOTIFY 0x8000000000000000 +#define HV_CRASH_CTL_CRASH_NOTIFY (1ULL << 63) /* Define version of the synthetic interrupt controller. */ #define HV_SYNIC_VERSION (1) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/