linux-kernel - [PATCH] ACPI: processor_idle: delete use of NOP CPUIDLE

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Message-id: <alpine.LFD.2.02.1101120229060.19140@x980>
Date:	Wed, 12 Jan 2011 02:30:31 -0500 (EST)
From:	Len Brown <lenb@...nel.org>
To:	Thomas Renninger <trenn@...e.de>
Cc:	linux-perf-users@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	arjan@...ux.intel.com, j-pihet@...com, linux-acpi@...r.kernel.org,
	linux-pm@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: [PATCH] ACPI: processor_idle: delete use of NOP CPUIDLE_FLAGs

From: Len Brown <len.brown@...el.com>

CPUIDLE_FLAG_SHALLOW
CPUIDLE_FLAG_BALANCED
CPUIDLE_FLAG_DEEP
CPUIDLE_FLAG_CHECK_BM

were set by acpi_processor_setup_cpuidle(),
but never used by cpuidle or by acpi_idle.
So stop setting them.

Signed-off-by: Len Brown <len.brown@...el.com>
---
 drivers/acpi/processor_idle.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index eefd4aa..70599d2 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -1023,7 +1023,6 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr)
 		state->flags = 0;
 		switch (cx->type) {
 			case ACPI_STATE_C1:
-			state->flags |= CPUIDLE_FLAG_SHALLOW;
 			if (cx->entry_method == ACPI_CSTATE_FFH)
 				state->flags |= CPUIDLE_FLAG_TIME_VALID;
 
@@ -1032,16 +1031,13 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr)
 			break;
 
 			case ACPI_STATE_C2:
-			state->flags |= CPUIDLE_FLAG_BALANCED;
 			state->flags |= CPUIDLE_FLAG_TIME_VALID;
 			state->enter = acpi_idle_enter_simple;
 			dev->safe_state = state;
 			break;
 
 			case ACPI_STATE_C3:
-			state->flags |= CPUIDLE_FLAG_DEEP;
 			state->flags |= CPUIDLE_FLAG_TIME_VALID;
-			state->flags |= CPUIDLE_FLAG_CHECK_BM;
 			state->enter = pr->flags.bm_check ?
 					acpi_idle_enter_bm :
 					acpi_idle_enter_simple;
-- 
1.7.4.rc1.7.g2cf08


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