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intel_idle: shrink states tables

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There is no reason to define CPUIDLE_STATE_MAX (currently 10) entries
in states tables if the driver always stops iterating over table when
it encounters first .enter == NULL entry.

$ size drivers/idle/intel_idle.o.*
   text    data     bss     dec     hex filename
   2886    5440      32    8358    20a6 drivers/idle/intel_idle.o.before
   2886    3752      32    6670    1a0e drivers/idle/intel_idle.o.after

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2013-08-30 12:25:10 +02:00 committed by Rafael J. Wysocki
parent 4a10c2ac2f
commit eba682a5ae
1 changed files with 6 additions and 6 deletions
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12
drivers/idle/intel_idle.c
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@ -123,7 +123,7 @@ static struct cpuidle_state *cpuidle_state_table;
* which is also the index into the MWAIT hint array. * which is also the index into the MWAIT hint array.
* Thus C0 is a dummy. * Thus C0 is a dummy.
*/ */
static struct cpuidle_state nehalem_cstates[CPUIDLE_STATE_MAX] = { static struct cpuidle_state nehalem_cstates[] = {
{ {
.name = "C1-NHM", .name = "C1-NHM",
.desc = "MWAIT 0x00", .desc = "MWAIT 0x00",
@ -156,7 +156,7 @@ static struct cpuidle_state nehalem_cstates[CPUIDLE_STATE_MAX] = {
.enter = NULL } .enter = NULL }
}; };
static struct cpuidle_state snb_cstates[CPUIDLE_STATE_MAX] = { static struct cpuidle_state snb_cstates[] = {
{ {
.name = "C1-SNB", .name = "C1-SNB",
.desc = "MWAIT 0x00", .desc = "MWAIT 0x00",
@ -196,7 +196,7 @@ static struct cpuidle_state snb_cstates[CPUIDLE_STATE_MAX] = {
.enter = NULL } .enter = NULL }
}; };
static struct cpuidle_state ivb_cstates[CPUIDLE_STATE_MAX] = { static struct cpuidle_state ivb_cstates[] = {
{ {
.name = "C1-IVB", .name = "C1-IVB",
.desc = "MWAIT 0x00", .desc = "MWAIT 0x00",
@ -236,7 +236,7 @@ static struct cpuidle_state ivb_cstates[CPUIDLE_STATE_MAX] = {
.enter = NULL } .enter = NULL }
}; };
static struct cpuidle_state hsw_cstates[CPUIDLE_STATE_MAX] = { static struct cpuidle_state hsw_cstates[] = {
{ {
.name = "C1-HSW", .name = "C1-HSW",
.desc = "MWAIT 0x00", .desc = "MWAIT 0x00",
@ -297,7 +297,7 @@ static struct cpuidle_state hsw_cstates[CPUIDLE_STATE_MAX] = {
.enter = NULL } .enter = NULL }
}; };
static struct cpuidle_state atom_cstates[CPUIDLE_STATE_MAX] = { static struct cpuidle_state atom_cstates[] = {
{ {
.name = "C1E-ATM", .name = "C1E-ATM",
.desc = "MWAIT 0x00", .desc = "MWAIT 0x00",
@ -628,7 +628,7 @@ static int intel_idle_cpu_init(int cpu)
int num_substates, mwait_hint, mwait_cstate, mwait_substate; int num_substates, mwait_hint, mwait_cstate, mwait_substate;
if (cpuidle_state_table[cstate].enter == NULL) if (cpuidle_state_table[cstate].enter == NULL)
continue; break;
if (cstate + 1 > max_cstate) { if (cstate + 1 > max_cstate) {
printk(PREFIX "max_cstate %d reached\n", max_cstate); printk(PREFIX "max_cstate %d reached\n", max_cstate);