diff options
| author | Andrew Morton <akpm@osdl.org> | 2004-01-19 05:13:14 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@home.osdl.org> | 2004-01-19 05:13:14 -0800 |
| commit | ce65cade5848263c483eda1b7ffe9ed5a01a0c8f (patch) | |
| tree | b03a447bf8b90154f16dd143dfa75d03f11e05ba /include | |
| parent | d91341a903501da6249a38f0c35528f176b5f533 (diff) | |
[PATCH] Arrange for EFI-related code to be compiled away
From: David Mosberger <davidm@napali.hpl.hp.com>
There is some EFI-related code which is present in the ia64 build but is not
needed: variable efi_enabled is always zero.
The patch fiddles with the efi_enabled definition to arrange for
`efi_enabled' to be constant zero or constant one in those situations where
this can be guaranteed.
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/efi.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/include/linux/efi.h b/include/linux/efi.h index d6cac7ce314d..a1764b1fb106 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -301,10 +301,18 @@ extern inline unsigned long __init efi_get_time(void); extern inline int __init efi_set_rtc_mmss(unsigned long nowtime); extern struct efi_memory_map memmap; +/* + * We play games with efi_enabled so that the compiler will, if possible, remove + * EFI-related code altogether. + */ #ifdef CONFIG_EFI -extern int efi_enabled; +# ifdef CONFIG_X86 + extern int efi_enabled; +# else +# define efi_enabled 1 +# endif #else -#define efi_enabled 0 +# define efi_enabled 0 #endif /* |