mmc: dw_mmc: constify dw_mci_idmac_ops in exynos back-end

The of_device_id match data is now marked as const and
must not be modified. This changes the dw_mmc to mark
all pointers passing the dw_mci_drv_data or dw_mci_dma_ops
structures as const, and also marks the static definitions
as const.

drivers/mmc/host/dw_mmc-exynos.c: In function 'dw_mci_exynos_probe':
drivers/mmc/host/dw_mmc-exynos.c:234:11: warning: assignment discards 'const' qualifier from pointer target type [enabled by default]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Thomas Abraham <thomas.abraham@linaro.org>
Cc: Will Newton <will.newton@imgtec.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c
index 0147ac3..4d50da6 100644 (file)
--- a/drivers/mmc/host/dw_mmc-exynos.c
+++ b/drivers/mmc/host/dw_mmc-exynos.c
@@ -208,7 +208,7 @@ static unsigned long exynos5250_dwmmc_caps[4] = {
        MMC_CAP_CMD23,
 };
 
-static struct dw_mci_drv_data exynos5250_drv_data = {
+static const struct dw_mci_drv_data exynos5250_drv_data = {
        .caps                   = exynos5250_dwmmc_caps,
        .init                   = dw_mci_exynos_priv_init,
        .setup_clock            = dw_mci_exynos_setup_clock,
@@ -220,14 +220,14 @@ static struct dw_mci_drv_data exynos5250_drv_data = {
 
 static const struct of_device_id dw_mci_exynos_match[] = {
        { .compatible = "samsung,exynos5250-dw-mshc",
-                       .data = (void *)&exynos5250_drv_data, },
+                       .data = &exynos5250_drv_data, },
        {},
 };
 MODULE_DEVICE_TABLE(of, dw_mci_exynos_match);
 
 int dw_mci_exynos_probe(struct platform_device *pdev)
 {
-       struct dw_mci_drv_data *drv_data;
+       const struct dw_mci_drv_data *drv_data;
        const struct of_device_id *match;
 
        match = of_match_node(dw_mci_exynos_match, pdev->dev.of_node);

diff --git a/drivers/mmc/host/dw_mmc-pltfm.c b/drivers/mmc/host/dw_mmc-pltfm.c
index e595721..917936b 100644 (file)
--- a/drivers/mmc/host/dw_mmc-pltfm.c
+++ b/drivers/mmc/host/dw_mmc-pltfm.c
@@ -24,7 +24,7 @@
 #include "dw_mmc.h"
 
 int dw_mci_pltfm_register(struct platform_device *pdev,
-                               struct dw_mci_drv_data *drv_data)
+                               const struct dw_mci_drv_data *drv_data)
 {
        struct dw_mci *host;
        struct resource *regs;

diff --git a/drivers/mmc/host/dw_mmc-pltfm.h b/drivers/mmc/host/dw_mmc-pltfm.h
index 301f245..2ac37b8 100644 (file)
--- a/drivers/mmc/host/dw_mmc-pltfm.h
+++ b/drivers/mmc/host/dw_mmc-pltfm.h
@@ -13,7 +13,7 @@
 #define _DW_MMC_PLTFM_H_
 
 extern int dw_mci_pltfm_register(struct platform_device *pdev,
-                               struct dw_mci_drv_data *drv_data);
+                               const struct dw_mci_drv_data *drv_data);
 extern int __devexit dw_mci_pltfm_remove(struct platform_device *pdev);
 extern const struct dev_pm_ops dw_mci_pltfm_pmops;
 

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index b087f66..c0667c8 100644 (file)
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -435,7 +435,7 @@ static int dw_mci_idmac_init(struct dw_mci *host)
        return 0;
 }
 
-static struct dw_mci_dma_ops dw_mci_idmac_ops = {
+static const struct dw_mci_dma_ops dw_mci_idmac_ops = {
        .init = dw_mci_idmac_init,
        .start = dw_mci_idmac_start_dma,
        .stop = dw_mci_idmac_stop_dma,

diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h
index 3141676..9653166 100644 (file)
--- a/include/linux/mmc/dw_mmc.h
+++ b/include/linux/mmc/dw_mmc.h
@@ -137,7 +137,7 @@ struct dw_mci {
 
        dma_addr_t              sg_dma;
        void                    *sg_cpu;
-       struct dw_mci_dma_ops   *dma_ops;
+       const struct dw_mci_dma_ops     *dma_ops;
 #ifdef CONFIG_MMC_DW_IDMAC
        unsigned int            ring_size;
 #else
@@ -162,7 +162,7 @@ struct dw_mci {
        u16                     data_offset;
        struct device           *dev;
        struct dw_mci_board     *pdata;
-       struct dw_mci_drv_data  *drv_data;
+       const struct dw_mci_drv_data    *drv_data;
        void                    *priv;
        struct clk              *biu_clk;
        struct clk              *ciu_clk;