Several functions are only ever referenced locally, so make them static.
Of those functions, many of them are protected by an #if. However, the
code which can compile fine in either case.
Now that (1) the unneeded code is marked 'static' and (2) the code is
only used under a C 'if (IS_ENABLED(CONFIG_FB_FSL_DIU))', the compiler
can automatically remove the unneeded code, and we don't need the #if or
the empty stub functions.
Signed-off-by: Brian Norris <computersforpe...@gmail.com>
---
Based off of Gerhard Sittig's patch:
powerpc/mpc512x: silence build warning upon disabled DIU
Compile-tested with CONFIG_FB_FSL_DIU=n
arch/powerpc/platforms/512x/mpc512x_shared.c | 19 ++++++-------------
arch/powerpc/sysdev/fsl_soc.h | 3 +--
2 files changed, 7 insertions(+), 15 deletions(-)
diff --git a/arch/powerpc/platforms/512x/mpc512x_shared.c
b/arch/powerpc/platforms/512x/mpc512x_shared.c
index 1a7b1d0..48e0718 100644
--- a/arch/powerpc/platforms/512x/mpc512x_shared.c
+++ b/arch/powerpc/platforms/512x/mpc512x_shared.c
@@ -60,8 +60,6 @@ void mpc512x_restart(char *cmd)
;
}
-#if IS_ENABLED(CONFIG_FB_FSL_DIU)
-
struct fsl_diu_shared_fb {
u8 gamma[0x300]; /* 32-bit aligned! */
struct diu_ad ad0; /* 32-bit aligned! */
@@ -71,7 +69,7 @@ struct fsl_diu_shared_fb {
};
#define DIU_DIV_MASK 0x000000ff
-void mpc512x_set_pixel_clock(unsigned int pixclock)
+static void mpc512x_set_pixel_clock(unsigned int pixclock)
{
unsigned long bestval, bestfreq, speed, busfreq;
unsigned long minpixclock, maxpixclock, pixval;
@@ -164,7 +162,7 @@ void mpc512x_set_pixel_clock(unsigned int pixclock)
iounmap(ccm);
}
-enum fsl_diu_monitor_port
+static enum fsl_diu_monitor_port
mpc512x_valid_monitor_port(enum fsl_diu_monitor_port port)
{
return FSL_DIU_PORT_DVI;
@@ -179,7 +177,7 @@ static inline void mpc512x_free_bootmem(struct page *page)
free_reserved_page(page);
}
-void mpc512x_release_bootmem(void)
+static void mpc512x_release_bootmem(void)
{
unsigned long addr = diu_shared_fb.fb_phys & PAGE_MASK;
unsigned long size = diu_shared_fb.fb_len;
@@ -205,7 +203,7 @@ void mpc512x_release_bootmem(void)
* address range will be reserved in setup_arch() after bootmem
* allocator is up.
*/
-void __init mpc512x_init_diu(void)
+static void __init mpc512x_init_diu(void)
{
struct device_node *np;
struct diu __iomem *diu_reg;
@@ -274,7 +272,7 @@ out:
iounmap(diu_reg);
}
-void __init mpc512x_setup_diu(void)
+static void __init mpc512x_setup_diu(void)
{
int ret;
@@ -303,11 +301,6 @@ void __init mpc512x_setup_diu(void)
diu_ops.release_bootmem = mpc512x_release_bootmem;
}
-#else
-void __init mpc512x_setup_diu(void) { /* EMPTY */ }
-void __init mpc512x_init_diu(void) { /* EMPTY */ }
-#endif
-
void __init mpc512x_init_IRQ(void)
{
struct device_node *np;
@@ -340,7 +333,7 @@ static struct of_device_id __initdata of_bus_ids[] = {
{},
};
-void __init mpc512x_declare_of_platform_devices(void)
+static void __init mpc512x_declare_of_platform_devices(void)
{
if (of_platform_bus_probe(NULL, of_bus_ids, NULL))
printk(KERN_ERR __FILE__ ": "
diff --git a/arch/powerpc/sysdev/fsl_soc.h b/arch/powerpc/sysdev/fsl_soc.h
index c6d0073..f845ffd 100644
--- a/arch/powerpc/sysdev/fsl_soc.h
+++ b/arch/powerpc/sysdev/fsl_soc.h
@@ -21,8 +21,6 @@ struct device_node;
extern void fsl_rstcr_restart(char *cmd);
-#if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE)
-
/* The different ports that the DIU can be connected to */
enum fsl_diu_monitor_port {
FSL_DIU_PORT_DVI, /* DVI */
@@ -42,6 +40,7 @@ struct platform_diu_data_ops {
void (*release_bootmem)(void);
};
+#if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE)
extern struct platform_diu_data_ops diu_ops;
#endif
--
1.8.4
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