Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753829Ab3H0ScT (ORCPT ); Tue, 27 Aug 2013 14:32:19 -0400 Received: from e23smtp05.au.ibm.com ([202.81.31.147]:42760 "EHLO e23smtp05.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751715Ab3H0ScQ (ORCPT ); Tue, 27 Aug 2013 14:32:16 -0400 Subject: [PATCH V6 4/7] pseries/cpuidle: Remove MAX_IDLE_STATE macro. To: linux-pm@lists.linux-foundation.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org From: Deepthi Dharwar Cc: b.zolnierkie@samsung.com, benh@kernel.crashing.org, daniel.lezcano@linaro.org, dongsheng.wang@freescale.com, michael@ellerman.id.au, scottwood@freescale.com, srivatsa.bhat@linux.vnet.ibm.com, preeti@linux.vnet.ibm.com, svaidy@linux.vnet.ibm.com Date: Wed, 28 Aug 2013 00:01:28 +0530 Message-ID: <20130827183126.18579.80649.stgit@deepthi.in.ibm.com> In-Reply-To: <20130827183016.18579.16595.stgit@deepthi.in.ibm.com> References: <20130827183016.18579.16595.stgit@deepthi.in.ibm.com> User-Agent: StGit/0.16 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-TM-AS-MML: No X-Content-Scanned: Fidelis XPS MAILER x-cbid: 13082718-1396-0000-0000-0000037668ED Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2819 Lines: 84 This patch removes the usage of MAX_IDLE_STATE macro and dead code around it. The number of states are determined at run time based on the cpuidle state table selected on a given platform Signed-off-by: Deepthi Dharwar --- drivers/cpuidle/cpuidle-ibm-power.c | 26 +++++++++----------------- 1 file changed, 9 insertions(+), 17 deletions(-) diff --git a/drivers/cpuidle/cpuidle-ibm-power.c b/drivers/cpuidle/cpuidle-ibm-power.c index 262db3c..14ebdb4 100644 --- a/drivers/cpuidle/cpuidle-ibm-power.c +++ b/drivers/cpuidle/cpuidle-ibm-power.c @@ -25,9 +25,7 @@ struct cpuidle_driver pseries_idle_driver = { .owner = THIS_MODULE, }; -#define MAX_IDLE_STATE_COUNT 2 - -static int max_idle_state = MAX_IDLE_STATE_COUNT - 1; +static int max_idle_state; static struct cpuidle_state *cpuidle_state_table; static inline void idle_loop_prolog(unsigned long *in_purr) @@ -133,7 +131,7 @@ static int shared_cede_loop(struct cpuidle_device *dev, /* * States for dedicated partition case. */ -static struct cpuidle_state dedicated_states[MAX_IDLE_STATE_COUNT] = { +static struct cpuidle_state dedicated_states[] = { { /* Snooze */ .name = "snooze", .desc = "snooze", @@ -153,7 +151,7 @@ static struct cpuidle_state dedicated_states[MAX_IDLE_STATE_COUNT] = { /* * States for shared partition case. */ -static struct cpuidle_state shared_states[MAX_IDLE_STATE_COUNT] = { +static struct cpuidle_state shared_states[] = { { /* Shared Cede */ .name = "Shared Cede", .desc = "Shared Cede", @@ -223,11 +221,7 @@ static int pseries_cpuidle_driver_init(void) struct cpuidle_driver *drv = &pseries_idle_driver; drv->state_count = 0; - - for (idle_state = 0; idle_state < MAX_IDLE_STATE_COUNT; ++idle_state) { - - if (idle_state > max_idle_state) - break; + for (idle_state = 0; idle_state < max_idle_state; ++idle_state) { /* is the state not enabled? */ if (cpuidle_state_table[idle_state].enter == NULL) @@ -252,16 +246,14 @@ static int pseries_idle_probe(void) if (cpuidle_disable != IDLE_NO_OVERRIDE) return -ENODEV; - if (max_idle_state == 0) { - printk(KERN_DEBUG "pseries processor idle disabled.\n"); - return -EPERM; - } - if (firmware_has_feature(FW_FEATURE_SPLPAR)) { - if (get_lppaca()->shared_proc) + if (get_lppaca()->shared_proc) { cpuidle_state_table = shared_states; - else + max_idle_state = ARRAY_SIZE(shared_states); + } else { cpuidle_state_table = dedicated_states; + max_idle_state = ARRAY_SIZE(dedicated_states); + } } else return -ENODEV; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/