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authorBjorn Helgaas <bhelgaas@google.com>2014-02-26 11:25:56 -0700
committerMister Oyster <oysterized@gmail.com>2017-04-11 10:59:15 +0200
commitcb098566d9e67b52f6478a429fdae2d071271c95 (patch)
tree01fadaaf1e9a019c0f453e1aebbf2d8dc57b2264 /include/linux/ioport.h
parent85733caabf3cb0cb6a51363c608967e505233949 (diff)
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 89b7c24a3..dec741499 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 */