iomap: fix 64 bits resources on 32 bits

Almost all implementations of pci_iomap() in the kernel, including the generic
lib/iomap.c one, copies the content of a struct resource into unsigned long's
which will break on 32 bits platforms with 64 bits resources.

This fixes all definitions of pci_iomap() to use resource_size_t.  I also
"fixed" the 64bits arch for consistency.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
index baf5756..36ab22a 100644 (file)
--- a/arch/alpha/kernel/pci.c
+++ b/arch/alpha/kernel/pci.c
@@ -514,8 +514,8 @@ sys_pciconfig_iobase(long which, unsigned long bus, unsigned long dfn)
 
 void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
 {
-       unsigned long start = pci_resource_start(dev, bar);
-       unsigned long len = pci_resource_len(dev, bar);
+       resource_size_t start = pci_resource_start(dev, bar);
+       resource_size_t len = pci_resource_len(dev, bar);
        unsigned long flags = pci_resource_flags(dev, bar);
 
        if (!len || !start)

diff --git a/arch/arm/mm/iomap.c b/arch/arm/mm/iomap.c
index 62066f3..7429f8c 100644 (file)
--- a/arch/arm/mm/iomap.c
+++ b/arch/arm/mm/iomap.c
@@ -26,8 +26,8 @@ EXPORT_SYMBOL(ioport_unmap);
 #ifdef CONFIG_PCI
 void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
 {
-       unsigned long start = pci_resource_start(dev, bar);
-       unsigned long len   = pci_resource_len(dev, bar);
+       resource_size_t start = pci_resource_start(dev, bar);
+       resource_size_t len   = pci_resource_len(dev, bar);
        unsigned long flags = pci_resource_flags(dev, bar);
 
        if (!len || !start)

diff --git a/arch/frv/mb93090-mb00/pci-iomap.c b/arch/frv/mb93090-mb00/pci-iomap.c
index 068fa04..35f6df2 100644 (file)
--- a/arch/frv/mb93090-mb00/pci-iomap.c
+++ b/arch/frv/mb93090-mb00/pci-iomap.c
@@ -13,8 +13,8 @@
 
 void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
 {
-       unsigned long start = pci_resource_start(dev, bar);
-       unsigned long len = pci_resource_len(dev, bar);
+       resource_size_t start = pci_resource_start(dev, bar);
+       resource_size_t len = pci_resource_len(dev, bar);
        unsigned long flags = pci_resource_flags(dev, bar);
 
        if (!len || !start)

diff --git a/arch/mips/lib/iomap-pci.c b/arch/mips/lib/iomap-pci.c
index c11b249..2ab899c 100644 (file)
--- a/arch/mips/lib/iomap-pci.c
+++ b/arch/mips/lib/iomap-pci.c
@@ -45,8 +45,8 @@ static void __iomem *ioport_map_pci(struct pci_dev *dev,
  */
 void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
 {
-       unsigned long start = pci_resource_start(dev, bar);
-       unsigned long len = pci_resource_len(dev, bar);
+       resource_size_t start = pci_resource_start(dev, bar);
+       resource_size_t len = pci_resource_len(dev, bar);
        unsigned long flags = pci_resource_flags(dev, bar);
 
        if (!len || !start)

diff --git a/arch/mn10300/unit-asb2305/pci-iomap.c b/arch/mn10300/unit-asb2305/pci-iomap.c
index dbceae4..c1a8d8f 100644 (file)
--- a/arch/mn10300/unit-asb2305/pci-iomap.c
+++ b/arch/mn10300/unit-asb2305/pci-iomap.c
@@ -16,8 +16,8 @@
  */
 void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
 {
-       unsigned long start = pci_resource_start(dev, bar);
-       unsigned long len = pci_resource_len(dev, bar);
+       resource_size_t start = pci_resource_start(dev, bar);
+       resource_size_t len = pci_resource_len(dev, bar);
        unsigned long flags = pci_resource_flags(dev, bar);
 
        if (!len || !start)

diff --git a/arch/parisc/lib/iomap.c b/arch/parisc/lib/iomap.c
index f4a8116..9abed07 100644 (file)
--- a/arch/parisc/lib/iomap.c
+++ b/arch/parisc/lib/iomap.c
@@ -438,8 +438,8 @@ void ioport_unmap(void __iomem *addr)
 /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
 void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
 {
-       unsigned long start = pci_resource_start(dev, bar);
-       unsigned long len = pci_resource_len(dev, bar);
+       resource_size_t start = pci_resource_start(dev, bar);
+       resource_size_t len = pci_resource_len(dev, bar);
        unsigned long flags = pci_resource_flags(dev, bar);
 
        if (!len || !start)

diff --git a/arch/ppc/kernel/pci.c b/arch/ppc/kernel/pci.c
index 50ce83f..df3ef6d 100644 (file)
--- a/arch/ppc/kernel/pci.c
+++ b/arch/ppc/kernel/pci.c
@@ -1121,8 +1121,8 @@ void __init pci_init_resource(struct resource *res, resource_size_t start,
 
 void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
 {
-       unsigned long start = pci_resource_start(dev, bar);
-       unsigned long len = pci_resource_len(dev, bar);
+       resource_size_t start = pci_resource_start(dev, bar);
+       resource_size_t len = pci_resource_len(dev, bar);
        unsigned long flags = pci_resource_flags(dev, bar);
 
        if (!len)

diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c
index 49b435c..08d2e73 100644 (file)
--- a/arch/sh/drivers/pci/pci.c
+++ b/arch/sh/drivers/pci/pci.c
@@ -191,8 +191,8 @@ void __init pcibios_update_irq(struct pci_dev *dev, int irq)
 
 void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
 {
-       unsigned long start = pci_resource_start(dev, bar);
-       unsigned long len = pci_resource_len(dev, bar);
+       resource_size_t start = pci_resource_start(dev, bar);
+       resource_size_t len = pci_resource_len(dev, bar);
        unsigned long flags = pci_resource_flags(dev, bar);
 
        if (unlikely(!len || !start))

diff --git a/arch/sparc/lib/iomap.c b/arch/sparc/lib/iomap.c
index 54501c1..9ef37e1 100644 (file)
--- a/arch/sparc/lib/iomap.c
+++ b/arch/sparc/lib/iomap.c
@@ -21,8 +21,8 @@ EXPORT_SYMBOL(ioport_unmap);
 /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
 void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
 {
-       unsigned long start = pci_resource_start(dev, bar);
-       unsigned long len = pci_resource_len(dev, bar);
+       resource_size_t start = pci_resource_start(dev, bar);
+       resource_size_t len = pci_resource_len(dev, bar);
        unsigned long flags = pci_resource_flags(dev, bar);
 
        if (!len || !start)

diff --git a/arch/sparc64/lib/iomap.c b/arch/sparc64/lib/iomap.c
index ac556db..7120ebb 100644 (file)
--- a/arch/sparc64/lib/iomap.c
+++ b/arch/sparc64/lib/iomap.c
@@ -21,8 +21,8 @@ EXPORT_SYMBOL(ioport_unmap);
 /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
 void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
 {
-       unsigned long start = pci_resource_start(dev, bar);
-       unsigned long len = pci_resource_len(dev, bar);
+       resource_size_t start = pci_resource_start(dev, bar);
+       resource_size_t len = pci_resource_len(dev, bar);
        unsigned long flags = pci_resource_flags(dev, bar);
 
        if (!len || !start)

diff --git a/arch/v850/kernel/rte_mb_a_pci.c b/arch/v850/kernel/rte_mb_a_pci.c
index 7165478..687e367 100644 (file)
--- a/arch/v850/kernel/rte_mb_a_pci.c
+++ b/arch/v850/kernel/rte_mb_a_pci.c
@@ -790,8 +790,8 @@ pci_free_consistent (struct pci_dev *pdev, size_t size, void *cpu_addr,
 
 void __iomem *pci_iomap (struct pci_dev *dev, int bar, unsigned long max)
 {
-       unsigned long start = pci_resource_start (dev, bar);
-       unsigned long len = pci_resource_len (dev, bar);
+       resource_size_t start = pci_resource_start (dev, bar);
+       resource_size_t len = pci_resource_len (dev, bar);
 
        if (!start || len == 0)
                return 0;

diff --git a/lib/iomap.c b/lib/iomap.c
index dd6ca48..37a3ea4 100644 (file)
--- a/lib/iomap.c
+++ b/lib/iomap.c
@@ -257,7 +257,7 @@ EXPORT_SYMBOL(ioport_unmap);
 void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
 {
        resource_size_t start = pci_resource_start(dev, bar);
-       unsigned long len = pci_resource_len(dev, bar);
+       resource_size_t len = pci_resource_len(dev, bar);
        unsigned long flags = pci_resource_flags(dev, bar);
 
        if (!len || !start)