diff options
| author | Kevin Winchester <kjwinchester@gmail.com> | 2011-12-20 20:52:22 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-12-21 09:25:09 +0100 |
| commit | 141168c36cdee3ff23d9c7700b0edc47cb65479f (patch) | |
| tree | 9b307514252062a7bd0cfa593e56e1843975e1c2 /arch/x86/include/asm/processor.h | |
| parent | b49d7d877ff96428c8cd2076b33ba72bf85ceaba (diff) | |
x86: Simplify code by removing a !SMP #ifdefs from 'struct cpuinfo_x86'
Several fields in struct cpuinfo_x86 were not defined for the
!SMP case, likely to save space. However, those fields still
have some meaning for UP, and keeping them allows some #ifdef
removal from other files. The additional size of the UP kernel
from this change is not significant enough to worry about
keeping up the distinction:
text data bss dec hex filename
4737168 506459 972040 6215667 5ed7f3 vmlinux.o.before
4737444 506459 972040 6215943 5ed907 vmlinux.o.after
for a difference of 276 bytes for an example UP config.
If someone wants those 276 bytes back badly then it should
be implemented in a cleaner way.
Signed-off-by: Kevin Winchester <kjwinchester@gmail.com>
Cc: Steffen Persvold <sp@numascale.com>
Link: http://lkml.kernel.org/r/1324428742-12498-1-git-send-email-kjwinchester@gmail.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm/processor.h')
| -rw-r--r-- | arch/x86/include/asm/processor.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index b650435ffb5..aa9088c2693 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -99,7 +99,6 @@ struct cpuinfo_x86 { u16 apicid; u16 initial_apicid; u16 x86_clflush_size; -#ifdef CONFIG_SMP /* number of cores as seen by the OS: */ u16 booted_cores; /* Physical processor id: */ @@ -110,7 +109,6 @@ struct cpuinfo_x86 { u8 compute_unit_id; /* Index into per_cpu list: */ u16 cpu_index; -#endif u32 microcode; } __attribute__((__aligned__(SMP_CACHE_BYTES))); |