diff options
| author | Jan Beulich <JBeulich@suse.com> | 2013-10-21 09:35:20 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-10-26 13:34:39 +0200 |
| commit | 09dc68d958c67c76cf672ec78b7391af453010f8 (patch) | |
| tree | 945770f406cb85bc080b37463a75ab30e6f38c88 /arch/x86/kernel/cpu/umc.c | |
| parent | 88829dfe4b6ea0c1c24d415668b3bfa78e5a5b16 (diff) | |
x86/cpu: Track legacy CPU model data only on 32-bit kernels
struct cpu_dev's c_models is only ever set inside CONFIG_X86_32
conditionals (or code that's being built for 32-bit only), so
there's no use of reserving the (empty) space for the model
names in a 64-bit kernel.
Similarly, c_size_cache is only used in the #else of a
CONFIG_X86_64 conditional, so reserving space for (and in one
case even initializing) that field is pointless for 64-bit
kernels too.
While moving both fields to the end of the structure, I also
noticed that:
- the c_models array size was one too small, potentially causing
table_lookup_model() to return garbage on Intel CPUs (intel.c's
instance was lacking the sentinel with family being zero), so the
patch bumps that by one,
- c_models' vendor sub-field was unused (and anyway redundant
with the base structure's c_x86_vendor field), so the patch deletes it.
Also rename the legacy fields so that their legacy nature stands out
and comment their declarations.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Link: http://lkml.kernel.org/r/5265036802000078000FC4DB@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/cpu/umc.c')
| -rw-r--r-- | arch/x86/kernel/cpu/umc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kernel/cpu/umc.c b/arch/x86/kernel/cpu/umc.c index 202759a1412..75c5ad5d35c 100644 --- a/arch/x86/kernel/cpu/umc.c +++ b/arch/x86/kernel/cpu/umc.c @@ -11,8 +11,8 @@ static const struct cpu_dev umc_cpu_dev = { .c_vendor = "UMC", .c_ident = { "UMC UMC UMC" }, - .c_models = { - { .vendor = X86_VENDOR_UMC, .family = 4, .model_names = + .legacy_models = { + { .family = 4, .model_names = { [1] = "U5D", [2] = "U5S", |