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From: djkurtz@chromium.org (Daniel Kurtz)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/3] ARM: EXYNOS: pmu: Constify data tables
Date: Thu, 21 Nov 2013 02:21:24 +0800	[thread overview]
Message-ID: <1384971686-7208-1-git-send-email-djkurtz@chromium.org> (raw)

These tables are all immutable, make them const to save 4416 bytes of RAM.

size arch/arm/mach-exynos/pmu.o
   text	   data	    bss
    848	   4420	      4		// before
   5264	      4	      4		// after

Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
---
 arch/arm/mach-exynos/pmu.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/arm/mach-exynos/pmu.c b/arch/arm/mach-exynos/pmu.c
index 97d6885..6609145 100644
--- a/arch/arm/mach-exynos/pmu.c
+++ b/arch/arm/mach-exynos/pmu.c
@@ -17,9 +17,9 @@
 
 #include "common.h"
 
-static struct exynos_pmu_conf *exynos_pmu_config;
+static const struct exynos_pmu_conf *exynos_pmu_config;
 
-static struct exynos_pmu_conf exynos4210_pmu_config[] = {
+static const struct exynos_pmu_conf exynos4210_pmu_config[] = {
 	/* { .reg = address, .val = { AFTR, LPA, SLEEP } */
 	{ S5P_ARM_CORE0_LOWPWR,			{ 0x0, 0x0, 0x2 } },
 	{ S5P_DIS_IRQ_CORE0,			{ 0x0, 0x0, 0x0 } },
@@ -95,7 +95,7 @@ static struct exynos_pmu_conf exynos4210_pmu_config[] = {
 	{ PMU_TABLE_END,},
 };
 
-static struct exynos_pmu_conf exynos4x12_pmu_config[] = {
+static const struct exynos_pmu_conf exynos4x12_pmu_config[] = {
 	{ S5P_ARM_CORE0_LOWPWR,			{ 0x0, 0x0, 0x2 } },
 	{ S5P_DIS_IRQ_CORE0,			{ 0x0, 0x0, 0x0 } },
 	{ S5P_DIS_IRQ_CENTRAL0,			{ 0x0, 0x0, 0x0 } },
@@ -203,7 +203,7 @@ static struct exynos_pmu_conf exynos4x12_pmu_config[] = {
 	{ PMU_TABLE_END,},
 };
 
-static struct exynos_pmu_conf exynos4412_pmu_config[] = {
+static const struct exynos_pmu_conf exynos4412_pmu_config[] = {
 	{ S5P_ARM_CORE2_LOWPWR,			{ 0x0, 0x0, 0x2 } },
 	{ S5P_DIS_IRQ_CORE2,			{ 0x0, 0x0, 0x0 } },
 	{ S5P_DIS_IRQ_CENTRAL2,			{ 0x0, 0x0, 0x0 } },
@@ -213,7 +213,7 @@ static struct exynos_pmu_conf exynos4412_pmu_config[] = {
 	{ PMU_TABLE_END,},
 };
 
-static struct exynos_pmu_conf exynos5250_pmu_config[] = {
+static const struct exynos_pmu_conf exynos5250_pmu_config[] = {
 	/* { .reg = address, .val = { AFTR, LPA, SLEEP } */
 	{ EXYNOS5_ARM_CORE0_SYS_PWR_REG,		{ 0x0, 0x0, 0x2} },
 	{ EXYNOS5_DIS_IRQ_ARM_CORE0_LOCAL_SYS_PWR_REG,	{ 0x0, 0x0, 0x0} },
@@ -317,7 +317,7 @@ static struct exynos_pmu_conf exynos5250_pmu_config[] = {
 	{ PMU_TABLE_END,},
 };
 
-static void __iomem *exynos5_list_both_cnt_feed[] = {
+static void __iomem * const exynos5_list_both_cnt_feed[] = {
 	EXYNOS5_ARM_CORE0_OPTION,
 	EXYNOS5_ARM_CORE1_OPTION,
 	EXYNOS5_ARM_COMMON_OPTION,
@@ -331,7 +331,7 @@ static void __iomem *exynos5_list_both_cnt_feed[] = {
 	EXYNOS5_TOP_PWR_SYSMEM_OPTION,
 };
 
-static void __iomem *exynos5_list_diable_wfi_wfe[] = {
+static void __iomem * const exynos5_list_diable_wfi_wfe[] = {
 	EXYNOS5_ARM_CORE1_OPTION,
 	EXYNOS5_FSYS_ARM_OPTION,
 	EXYNOS5_ISP_ARM_OPTION,
-- 
1.8.4.1

             reply	other threads:[~2013-11-20 18:21 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-11-20 18:21 Daniel Kurtz [this message]
2013-11-20 18:21 ` [PATCH 2/3] ARM: SAMSUNG: Let s3c_pm_do_restore_*() take const sleep_save Daniel Kurtz
2013-12-09 13:27   ` Tomasz Figa
2013-11-20 18:21 ` [PATCH 3/3] ARM: EXYNOS: Constify clksrc immutable register restore tables Daniel Kurtz
2013-12-09 13:14 ` [PATCH 1/3] ARM: EXYNOS: pmu: Constify data tables Tomasz Figa
2013-12-09 16:11   ` Daniel Kurtz
2013-12-09 16:15     ` Tomasz Figa
2013-12-09 21:00       ` Kukjin Kim

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