[PATCH] suspend: constify platform_suspend_ops

From: Lionel Debroux
Date: Sun Nov 07 2010 - 08:10:27 EST

While at it, fix two checkpatch errors.

Patch against mainline.

---

Subject: [PATCH] suspend: constify platform_suspend_ops

Inspired by hunks of the grsecurity patch, updated for newer kernels.
Even though platform_suspend_ops is already part of the list of "should be
const" operations structures of 2.6.35 checkpatch.pl, several non-const
struct instances constified by this patch have been added after 2.6.35.

Signed-off-by: Lionel Debroux <lionel_debroux@xxxxxxxx>
---
arch/arm/mach-at91/pm.c | 2 +-
arch/arm/mach-davinci/pm.c | 2 +-
arch/arm/mach-imx/pm-imx27.c | 2 +-
arch/arm/mach-lpc32xx/pm.c | 2 +-
arch/arm/mach-omap1/pm.c | 2 +-
arch/arm/mach-omap2/pm24xx.c | 2 +-
arch/arm/mach-omap2/pm34xx.c | 2 +-
arch/arm/mach-omap2/pm44xx.c | 2 +-
arch/arm/mach-pnx4008/pm.c | 2 +-
arch/arm/mach-pxa/pm.c | 2 +-
arch/arm/mach-pxa/sharpsl_pm.c | 2 +-
arch/arm/mach-sa1100/pm.c | 2 +-
arch/arm/plat-samsung/pm.c | 2 +-
arch/avr32/mach-at32ap/pm.c | 2 +-
arch/blackfin/mach-common/pm.c | 2 +-
arch/mips/alchemy/devboards/pm.c | 2 +-
arch/mips/jz4740/pm.c | 2 +-
arch/mips/loongson/common/pm.c | 2 +-
arch/powerpc/platforms/52xx/lite5200_pm.c | 2 +-
arch/powerpc/platforms/52xx/mpc52xx_pm.c | 2 +-
arch/powerpc/platforms/83xx/suspend.c | 2 +-
arch/powerpc/platforms/pseries/suspend.c | 2 +-
arch/powerpc/sysdev/fsl_pmc.c | 2 +-
arch/sh/boards/mach-hp6xx/pm.c | 2 +-
arch/sh/kernel/cpu/shmobile/pm.c | 2 +-
arch/sh/kernel/dma-nommu.c | 2 +-
drivers/acpi/sleep.c | 4 ++--
drivers/macintosh/via-pmu.c | 2 +-
include/linux/suspend.h | 22 +++++++++++-----------
kernel/power/hibernate.c | 4 ++--
kernel/power/suspend.c | 4 ++--
31 files changed, 44 insertions(+), 44 deletions(-)

diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index dafbacc..ea53f4d 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -301,7 +301,7 @@ static void at91_pm_end(void)
}


-static struct platform_suspend_ops at91_pm_ops ={
+static const struct platform_suspend_ops at91_pm_ops = {
.valid = at91_pm_valid_state,
.begin = at91_pm_begin,
.enter = at91_pm_enter,
diff --git a/arch/arm/mach-davinci/pm.c b/arch/arm/mach-davinci/pm.c
index fab953b..1bd73a0 100644
--- a/arch/arm/mach-davinci/pm.c
+++ b/arch/arm/mach-davinci/pm.c
@@ -110,7 +110,7 @@ static int davinci_pm_enter(suspend_state_t state)
return ret;
}

-static struct platform_suspend_ops davinci_pm_ops = {
+static const struct platform_suspend_ops davinci_pm_ops = {
.enter = davinci_pm_enter,
.valid = suspend_valid_only_mem,
};
diff --git a/arch/arm/mach-imx/pm-imx27.c b/arch/arm/mach-imx/pm-imx27.c
index afc17ce..2153ca7 100644
--- a/arch/arm/mach-imx/pm-imx27.c
+++ b/arch/arm/mach-imx/pm-imx27.c
@@ -32,7 +32,7 @@ static int mx27_suspend_enter(suspend_state_t state)
return 0;
}

-static struct platform_suspend_ops mx27_suspend_ops = {
+static const struct platform_suspend_ops mx27_suspend_ops = {
.enter = mx27_suspend_enter,
.valid = suspend_valid_only_mem,
};
diff --git a/arch/arm/mach-lpc32xx/pm.c b/arch/arm/mach-lpc32xx/pm.c
index a6e2aed..e76d41b 100644
--- a/arch/arm/mach-lpc32xx/pm.c
+++ b/arch/arm/mach-lpc32xx/pm.c
@@ -123,7 +123,7 @@ static int lpc32xx_pm_enter(suspend_state_t state)
return 0;
}

-static struct platform_suspend_ops lpc32xx_pm_ops = {
+static const struct platform_suspend_ops lpc32xx_pm_ops = {
.valid = suspend_valid_only_mem,
.enter = lpc32xx_pm_enter,
};
diff --git a/arch/arm/mach-omap1/pm.c b/arch/arm/mach-omap1/pm.c
index b1d3f9f..4cf3b67 100644
--- a/arch/arm/mach-omap1/pm.c
+++ b/arch/arm/mach-omap1/pm.c
@@ -647,7 +647,7 @@ static struct irqaction omap_wakeup_irq = {



-static struct platform_suspend_ops omap_pm_ops ={
+static const struct platform_suspend_ops omap_pm_ops = {
.prepare = omap_pm_prepare,
.enter = omap_pm_enter,
.finish = omap_pm_finish,
diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c
index a40457d..aa9764e 100644
--- a/arch/arm/mach-omap2/pm24xx.c
+++ b/arch/arm/mach-omap2/pm24xx.c
@@ -326,7 +326,7 @@ static void omap2_pm_finish(void)
enable_hlt();
}

-static struct platform_suspend_ops omap_pm_ops = {
+static const struct platform_suspend_ops omap_pm_ops = {
.prepare = omap2_pm_prepare,
.enter = omap2_pm_enter,
.finish = omap2_pm_finish,
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 75c0cd1..4000c3c 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -594,7 +594,7 @@ static void omap3_pm_end(void)
return;
}

-static struct platform_suspend_ops omap_pm_ops = {
+static const struct platform_suspend_ops omap_pm_ops = {
.begin = omap3_pm_begin,
.end = omap3_pm_end,
.prepare = omap3_pm_prepare,
diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c
index 54544b4..dc8b1ef 100644
--- a/arch/arm/mach-omap2/pm44xx.c
+++ b/arch/arm/mach-omap2/pm44xx.c
@@ -75,7 +75,7 @@ static void omap4_pm_end(void)
return;
}

-static struct platform_suspend_ops omap_pm_ops = {
+static const struct platform_suspend_ops omap_pm_ops = {
.begin = omap4_pm_begin,
.end = omap4_pm_end,
.prepare = omap4_pm_prepare,
diff --git a/arch/arm/mach-pnx4008/pm.c b/arch/arm/mach-pnx4008/pm.c
index ee3c29c..f3e60a0 100644
--- a/arch/arm/mach-pnx4008/pm.c
+++ b/arch/arm/mach-pnx4008/pm.c
@@ -119,7 +119,7 @@ static int pnx4008_pm_valid(suspend_state_t state)
(state == PM_SUSPEND_MEM);
}

-static struct platform_suspend_ops pnx4008_pm_ops = {
+static const struct platform_suspend_ops pnx4008_pm_ops = {
.enter = pnx4008_pm_enter,
.valid = pnx4008_pm_valid,
};
diff --git a/arch/arm/mach-pxa/pm.c b/arch/arm/mach-pxa/pm.c
index 166c15f..978e1b2 100644
--- a/arch/arm/mach-pxa/pm.c
+++ b/arch/arm/mach-pxa/pm.c
@@ -96,7 +96,7 @@ void pxa_pm_finish(void)
pxa_cpu_pm_fns->finish();
}

-static struct platform_suspend_ops pxa_pm_ops = {
+static const struct platform_suspend_ops pxa_pm_ops = {
.valid = pxa_pm_valid,
.enter = pxa_pm_enter,
.prepare = pxa_pm_prepare,
diff --git a/arch/arm/mach-pxa/sharpsl_pm.c b/arch/arm/mach-pxa/sharpsl_pm.c
index 8fed027..02874e9 100644
--- a/arch/arm/mach-pxa/sharpsl_pm.c
+++ b/arch/arm/mach-pxa/sharpsl_pm.c
@@ -868,7 +868,7 @@ static void sharpsl_apm_get_power_status(struct apm_power_info *info)
}

#ifdef CONFIG_PM
-static struct platform_suspend_ops sharpsl_pm_ops = {
+static const struct platform_suspend_ops sharpsl_pm_ops = {
.prepare = pxa_pm_prepare,
.finish = pxa_pm_finish,
.enter = corgi_pxa_pm_enter,
diff --git a/arch/arm/mach-sa1100/pm.c b/arch/arm/mach-sa1100/pm.c
index c83fdc8..ab9fc44 100644
--- a/arch/arm/mach-sa1100/pm.c
+++ b/arch/arm/mach-sa1100/pm.c
@@ -120,7 +120,7 @@ unsigned long sleep_phys_sp(void *sp)
return virt_to_phys(sp);
}

-static struct platform_suspend_ops sa11x0_pm_ops = {
+static const struct platform_suspend_ops sa11x0_pm_ops = {
.enter = sa11x0_pm_enter,
.valid = suspend_valid_only_mem,
};
diff --git a/arch/arm/plat-samsung/pm.c b/arch/arm/plat-samsung/pm.c
index 27cfca5..5bf3f2f 100644
--- a/arch/arm/plat-samsung/pm.c
+++ b/arch/arm/plat-samsung/pm.c
@@ -355,7 +355,7 @@ static void s3c_pm_finish(void)
s3c_pm_check_cleanup();
}

-static struct platform_suspend_ops s3c_pm_ops = {
+static const struct platform_suspend_ops s3c_pm_ops = {
.enter = s3c_pm_enter,
.prepare = s3c_pm_prepare,
.finish = s3c_pm_finish,
diff --git a/arch/avr32/mach-at32ap/pm.c b/arch/avr32/mach-at32ap/pm.c
index f021edf..32d680e 100644
--- a/arch/avr32/mach-at32ap/pm.c
+++ b/arch/avr32/mach-at32ap/pm.c
@@ -176,7 +176,7 @@ out:
return 0;
}

-static struct platform_suspend_ops avr32_pm_ops = {
+static const struct platform_suspend_ops avr32_pm_ops = {
.valid = avr32_pm_valid_state,
.enter = avr32_pm_enter,
};
diff --git a/arch/blackfin/mach-common/pm.c b/arch/blackfin/mach-common/pm.c
index 80884b1..745af2d 100644
--- a/arch/blackfin/mach-common/pm.c
+++ b/arch/blackfin/mach-common/pm.c
@@ -233,7 +233,7 @@ static int bfin_pm_enter(suspend_state_t state)
return 0;
}

-struct platform_suspend_ops bfin_pm_ops = {
+static const struct platform_suspend_ops bfin_pm_ops = {
.enter = bfin_pm_enter,
.valid = bfin_pm_valid,
};
diff --git a/arch/mips/alchemy/devboards/pm.c b/arch/mips/alchemy/devboards/pm.c
index 4bbd313..acaf91b 100644
--- a/arch/mips/alchemy/devboards/pm.c
+++ b/arch/mips/alchemy/devboards/pm.c
@@ -110,7 +110,7 @@ static void db1x_pm_end(void)

}

-static struct platform_suspend_ops db1x_pm_ops = {
+static const struct platform_suspend_ops db1x_pm_ops = {
.valid = suspend_valid_only_mem,
.begin = db1x_pm_begin,
.enter = db1x_pm_enter,
diff --git a/arch/mips/jz4740/pm.c b/arch/mips/jz4740/pm.c
index a999458..902d5b5 100644
--- a/arch/mips/jz4740/pm.c
+++ b/arch/mips/jz4740/pm.c
@@ -42,7 +42,7 @@ static int jz4740_pm_enter(suspend_state_t state)
return 0;
}

-static struct platform_suspend_ops jz4740_pm_ops = {
+static const struct platform_suspend_ops jz4740_pm_ops = {
.valid = suspend_valid_only_mem,
.enter = jz4740_pm_enter,
};
diff --git a/arch/mips/loongson/common/pm.c b/arch/mips/loongson/common/pm.c
index 6c1fd90..f55e07a 100644
--- a/arch/mips/loongson/common/pm.c
+++ b/arch/mips/loongson/common/pm.c
@@ -147,7 +147,7 @@ static int loongson_pm_valid_state(suspend_state_t state)
}
}

-static struct platform_suspend_ops loongson_pm_ops = {
+static const struct platform_suspend_ops loongson_pm_ops = {
.valid = loongson_pm_valid_state,
.enter = loongson_pm_enter,
};
diff --git a/arch/powerpc/platforms/52xx/lite5200_pm.c b/arch/powerpc/platforms/52xx/lite5200_pm.c
index 80234e5..eda0fc2 100644
--- a/arch/powerpc/platforms/52xx/lite5200_pm.c
+++ b/arch/powerpc/platforms/52xx/lite5200_pm.c
@@ -232,7 +232,7 @@ static void lite5200_pm_end(void)
lite5200_pm_target_state = PM_SUSPEND_ON;
}

-static struct platform_suspend_ops lite5200_pm_ops = {
+static const struct platform_suspend_ops lite5200_pm_ops = {
.valid = lite5200_pm_valid,
.begin = lite5200_pm_begin,
.prepare = lite5200_pm_prepare,
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pm.c b/arch/powerpc/platforms/52xx/mpc52xx_pm.c
index 568cef6..8310e8b 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_pm.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_pm.c
@@ -186,7 +186,7 @@ void mpc52xx_pm_finish(void)
iounmap(mbar);
}

-static struct platform_suspend_ops mpc52xx_pm_ops = {
+static const struct platform_suspend_ops mpc52xx_pm_ops = {
.valid = mpc52xx_pm_valid,
.prepare = mpc52xx_pm_prepare,
.enter = mpc52xx_pm_enter,
diff --git a/arch/powerpc/platforms/83xx/suspend.c b/arch/powerpc/platforms/83xx/suspend.c
index 75ae77f..fd4f2f2 100644
--- a/arch/powerpc/platforms/83xx/suspend.c
+++ b/arch/powerpc/platforms/83xx/suspend.c
@@ -311,7 +311,7 @@ static int mpc83xx_is_pci_agent(void)
return ret;
}

-static struct platform_suspend_ops mpc83xx_suspend_ops = {
+static const struct platform_suspend_ops mpc83xx_suspend_ops = {
.valid = mpc83xx_suspend_valid,
.begin = mpc83xx_suspend_begin,
.enter = mpc83xx_suspend_enter,
diff --git a/arch/powerpc/platforms/pseries/suspend.c b/arch/powerpc/platforms/pseries/suspend.c
index ed72098..a8ca289 100644
--- a/arch/powerpc/platforms/pseries/suspend.c
+++ b/arch/powerpc/platforms/pseries/suspend.c
@@ -153,7 +153,7 @@ static struct sysdev_class suspend_sysdev_class = {
.name = "power",
};

-static struct platform_suspend_ops pseries_suspend_ops = {
+static const struct platform_suspend_ops pseries_suspend_ops = {
.valid = suspend_valid_only_mem,
.begin = pseries_suspend_begin,
.prepare_late = pseries_prepare_late,
diff --git a/arch/powerpc/sysdev/fsl_pmc.c b/arch/powerpc/sysdev/fsl_pmc.c
index 44de855..e9381bf 100644
--- a/arch/powerpc/sysdev/fsl_pmc.c
+++ b/arch/powerpc/sysdev/fsl_pmc.c
@@ -53,7 +53,7 @@ static int pmc_suspend_valid(suspend_state_t state)
return 1;
}

-static struct platform_suspend_ops pmc_suspend_ops = {
+static const struct platform_suspend_ops pmc_suspend_ops = {
.valid = pmc_suspend_valid,
.enter = pmc_suspend_enter,
};
diff --git a/arch/sh/boards/mach-hp6xx/pm.c b/arch/sh/boards/mach-hp6xx/pm.c
index 4499a37..adc9b4b 100644
--- a/arch/sh/boards/mach-hp6xx/pm.c
+++ b/arch/sh/boards/mach-hp6xx/pm.c
@@ -143,7 +143,7 @@ static int hp6x0_pm_enter(suspend_state_t state)
return 0;
}

-static struct platform_suspend_ops hp6x0_pm_ops = {
+static const struct platform_suspend_ops hp6x0_pm_ops = {
.enter = hp6x0_pm_enter,
.valid = suspend_valid_only_mem,
};
diff --git a/arch/sh/kernel/cpu/shmobile/pm.c b/arch/sh/kernel/cpu/shmobile/pm.c
index e559687..a6f95ae 100644
--- a/arch/sh/kernel/cpu/shmobile/pm.c
+++ b/arch/sh/kernel/cpu/shmobile/pm.c
@@ -141,7 +141,7 @@ static int sh_pm_enter(suspend_state_t state)
return 0;
}

-static struct platform_suspend_ops sh_pm_ops = {
+static const struct platform_suspend_ops sh_pm_ops = {
.enter = sh_pm_enter,
.valid = suspend_valid_only_mem,
};
diff --git a/arch/sh/kernel/dma-nommu.c b/arch/sh/kernel/dma-nommu.c
index 3c55b87..92ccab3 100644
--- a/arch/sh/kernel/dma-nommu.c
+++ b/arch/sh/kernel/dma-nommu.c
@@ -62,7 +62,7 @@ static void nommu_sync_sg(struct device *dev, struct scatterlist *sg,
}
#endif

-struct dma_map_ops nommu_dma_ops = {
+const struct dma_map_ops nommu_dma_ops = {
.alloc_coherent = dma_generic_alloc_coherent,
.free_coherent = dma_generic_free_coherent,
.map_page = nommu_map_page,
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 721d93b..acfa8c3 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -319,7 +319,7 @@ static int acpi_suspend_state_valid(suspend_state_t pm_state)
}
}

-static struct platform_suspend_ops acpi_suspend_ops = {
+static const struct platform_suspend_ops acpi_suspend_ops = {
.valid = acpi_suspend_state_valid,
.begin = acpi_suspend_begin,
.prepare_late = acpi_pm_prepare,
@@ -347,7 +347,7 @@ static int acpi_suspend_begin_old(suspend_state_t pm_state)
* The following callbacks are used if the pre-ACPI 2.0 suspend ordering has
* been requested.
*/
-static struct platform_suspend_ops acpi_suspend_ops_old = {
+static const struct platform_suspend_ops acpi_suspend_ops_old = {
.valid = acpi_suspend_state_valid,
.begin = acpi_suspend_begin_old,
.prepare_late = acpi_pm_pre_suspend,
diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index cd29c82..8b021eb 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -2257,7 +2257,7 @@ static int pmu_sleep_valid(suspend_state_t state)
&& (pmac_call_feature(PMAC_FTR_SLEEP_STATE, NULL, 0, -1) >= 0);
}

-static struct platform_suspend_ops pmu_pm_ops = {
+static const struct platform_suspend_ops pmu_pm_ops = {
.enter = powerbook_sleep,
.valid = pmu_sleep_valid,
};
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index 2669751..0fc6088 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -106,15 +106,15 @@ typedef int __bitwise suspend_state_t;
* which require special recovery actions in that situation.
*/
struct platform_suspend_ops {
- int (*valid)(suspend_state_t state);
- int (*begin)(suspend_state_t state);
- int (*prepare)(void);
- int (*prepare_late)(void);
- int (*enter)(suspend_state_t state);
- void (*wake)(void);
- void (*finish)(void);
- void (*end)(void);
- void (*recover)(void);
+ int (* const valid)(suspend_state_t state);
+ int (* const begin)(suspend_state_t state);
+ int (* const prepare)(void);
+ int (* const prepare_late)(void);
+ int (* const enter)(suspend_state_t state);
+ void (* const wake)(void);
+ void (* const finish)(void);
+ void (* const end)(void);
+ void (* const recover)(void);
};

#ifdef CONFIG_SUSPEND
@@ -122,7 +122,7 @@ struct platform_suspend_ops {
* suspend_set_ops - set platform dependent suspend operations
* @ops: The new suspend operations to set.
*/
-extern void suspend_set_ops(struct platform_suspend_ops *ops);
+extern void suspend_set_ops(const struct platform_suspend_ops *ops);
extern int suspend_valid_only_mem(suspend_state_t state);

/**
@@ -147,7 +147,7 @@ extern int pm_suspend(suspend_state_t state);
#else /* !CONFIG_SUSPEND */
#define suspend_valid_only_mem NULL

-static inline void suspend_set_ops(struct platform_suspend_ops *ops) {}
+static inline void suspend_set_ops(const struct platform_suspend_ops *ops) {}
static inline int pm_suspend(suspend_state_t state) { return -ENOSYS; }
#endif /* !CONFIG_SUSPEND */

diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index 657272e..491b81a 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -51,14 +51,14 @@ enum {

static int hibernation_mode = HIBERNATION_SHUTDOWN;

-static struct platform_hibernation_ops *hibernation_ops;
+static const struct platform_hibernation_ops *hibernation_ops;

/**
* hibernation_set_ops - set the global hibernate operations
* @ops: the hibernation operations to use in subsequent hibernation transitions
*/

-void hibernation_set_ops(struct platform_hibernation_ops *ops)
+void hibernation_set_ops(const struct platform_hibernation_ops *ops)
{
if (ops && !(ops->begin && ops->end && ops->pre_snapshot
&& ops->prepare && ops->finish && ops->enter && ops->pre_restore
diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c
index 7335952..80051bd 100644
--- a/kernel/power/suspend.c
+++ b/kernel/power/suspend.c
@@ -30,13 +30,13 @@ const char *const pm_states[PM_SUSPEND_MAX] = {
[PM_SUSPEND_MEM] = "mem",
};

-static struct platform_suspend_ops *suspend_ops;
+static const struct platform_suspend_ops *suspend_ops;

/**
* suspend_set_ops - Set the global suspend method table.
* @ops: Pointer to ops structure.
*/
-void suspend_set_ops(struct platform_suspend_ops *ops)
+void suspend_set_ops(const struct platform_suspend_ops *ops)
{
mutex_lock(&pm_mutex);
suspend_ops = ops;
--
1.7.3.2.161.g3089c


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