diff options
| author | Rasmus Villemoes <linux@rasmusvillemoes.dk> | 2014-07-10 14:05:11 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2014-07-10 16:49:15 -0600 |
| commit | 8e2614bbf619e210674c3eae7f087db7c55ff89b (patch) | |
| tree | b077643ce3e160719532e67871295a07020a61ae | |
| parent | 20cde694027e7477cc532833e38ab9fcaa83fb64 (diff) | |
PCI: Add include guard to include/linux/pci_ids.h
Adding an include guard frees the preprocessor from reparsing over 2600
#defines in the cases where pci_ids.h is somehow included more than once.
This gives a tiny-but-measurable performance improvement when compiling
such files.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
| -rw-r--r-- | include/linux/pci_ids.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 7fa31731c85..6ed0bb73a86 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -6,6 +6,8 @@ * Do not add new entries to this file unless the definitions * are shared between multiple drivers. */ +#ifndef _LINUX_PCI_IDS_H +#define _LINUX_PCI_IDS_H /* Device classes and subclasses */ @@ -2968,3 +2970,5 @@ #define PCI_DEVICE_ID_XEN_PLATFORM 0x0001 #define PCI_VENDOR_ID_OCZ 0x1b85 + +#endif /* _LINUX_PCI_IDS_H */ |