linux-kernel - [PATCH] Avoid implicit constant truncation

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Date:	Wed,  3 Mar 2010 11:01:07 +1100
From:	imunsie@....ibm.com
To:	linux-kernel@...r.kernel.org
Cc:	Ian Munsie <imunsie@....ibm.com>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Matthew Wilcox <matthew@....cx>, Alex Chiang <achiang@...com>,
	Bjorn Helgaas <bjorn.helgaas@...com>,
	Kenji Kaneshige <kaneshige.kenji@...fujitsu.com>,
	linux-pci@...r.kernel.org
Subject: [PATCH] Avoid implicit constant truncation

From: Ian Munsie <imunsie@...ibm.com>

When building on 64 bit platforms, the compiler throws the following
warning:

drivers/pci/probe.c:197: warning: large integer implicitly truncated to unsigned type

This patch adds an explicit truncation to silence the compiler warning.

Signed-off-by: Ian Munsie <imunsie@...ibm.com>
---
 drivers/pci/probe.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 2a94309..c5d9668 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -195,7 +195,7 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
 		res->flags |= pci_calc_resource_flags(l) | IORESOURCE_SIZEALIGN;
 		if (type == pci_bar_io) {
 			l &= PCI_BASE_ADDRESS_IO_MASK;
-			mask = PCI_BASE_ADDRESS_IO_MASK & IO_SPACE_LIMIT;
+			mask = (u32)(PCI_BASE_ADDRESS_IO_MASK & IO_SPACE_LIMIT);
 		} else {
 			l &= PCI_BASE_ADDRESS_MEM_MASK;
 			mask = (u32)PCI_BASE_ADDRESS_MEM_MASK;
-- 
1.6.6.1

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