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authorBjorn Helgaas <bhelgaas@google.com>2014-02-26 22:25:56 +0400
committerBjorn Helgaas <bhelgaas@google.com>2014-02-27 01:42:09 +0400
commitd19cb803a2ff85d1b64b9628e1aec2aa76a9260b (patch)
treead782893ca50522d4285df1e523c5020f7095bfe /include/linux/ioport.h
parent5edb93b89f6cc3089ee283656555e7a9ad36a8a0 (diff)
downloadlinux-d19cb803a2ff85d1b64b9628e1aec2aa76a9260b.tar.xz
vsprintf: Add support for IORESOURCE_UNSET in %pR
Sometimes we have a struct resource where we know the type (MEM/IO/etc.) and the size, but we haven't assigned address space for it. The IORESOURCE_UNSET flag is a way to indicate this situation. For these "unset" resources, the start address is meaningless, so print only the size, e.g., - pci 0000:0c:00.0: reg 184: [mem 0x00000000-0x00001fff 64bit] + pci 0000:0c:00.0: reg 184: [mem size 0x2000 64bit] For %pr (printing with raw flags), we still print the address range, because %pr is mostly used for debugging anyway. Thanks to Fengguang Wu <fengguang.wu@intel.com> for suggesting resource_size(). Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'include/linux/ioport.h')
-rw-r--r--include/linux/ioport.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index 9fcaac8bc4f6..5e3a906cc089 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -51,7 +51,7 @@ struct resource {
#define IORESOURCE_EXCLUSIVE 0x08000000 /* Userland may not map this resource */
#define IORESOURCE_DISABLED 0x10000000
-#define IORESOURCE_UNSET 0x20000000
+#define IORESOURCE_UNSET 0x20000000 /* No address assigned yet */
#define IORESOURCE_AUTO 0x40000000
#define IORESOURCE_BUSY 0x80000000 /* Driver has marked this resource busy */