linux-kernel - [PATCH 1/3] ARM: EXYNOS: pmu: Constify data tables

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 21 Nov 2013 02:21:24 +0800
From:	Daniel Kurtz <djkurtz@...omium.org>
To:	Russell King <linux@....linux.org.uk>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Ben Dooks <ben-linux@...ff.org>
Cc:	Tomasz Figa <t.figa@...sung.com>, Heiko Stuebner <heiko@...ech.de>,
	Amit Daniel Kachhap <amit.daniel@...sung.com>,
	Abhilash Kesavan <a.kesavan@...sung.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
	Doug Andersen <dianders@...omium.org>,
	Daniel Kurtz <djkurtz@...omium.org>
Subject: [PATCH 1/3] ARM: EXYNOS: pmu: Constify data tables

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@...omium.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

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/