Re: [PATCH v5 1/8] clocksource: dmtimer: Remove all the exports

[Ladislav Michl]

Keerthy,

On Tue, Dec 12, 2017 at 11:42:10AM +0530, Keerthy wrote:
> Remove all the unwanted exports from the driver

I'm adding event capture capability to the pwm-omap driver and so far used
v4.15-rc3 as codebase.

Intended use is an IR receiver; for that I need to measure pulses width and
spaces between pulses. So DM timer was setup to generate interupt after
both TCAR1 and TCAR2 are filled, values are passed to IR decoder and
TCAR_IT_FLAG is cleared.

Of course, this is just proof of concept and needs to be polished and
generalized, but to make it at least work I need functions you just
unexported (plus some new).

Question is whenever we need this level of indirection (omap_dm_timer_ops)
or plain exports are enough.

Thank you,
	ladis

> Signed-off-by: Keerthy <j-keerthy@xxxxxx>
> Reviewed-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxxxx>
> ---
> Changes in v3:
> 
>   * Added Sebastian's Reviewed-by.
> 
> Changes in v2:
> 
>   * No code changes in this v2 version. Only enhanced patch
>     statistics for renames.
> 
>  arch/arm/plat-omap/dmtimer.c | 27 ---------------------------
>  1 file changed, 27 deletions(-)
> 
> diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
> index d443e48..72565fc 100644
> --- a/arch/arm/plat-omap/dmtimer.c
> +++ b/arch/arm/plat-omap/dmtimer.c
> @@ -302,7 +302,6 @@ struct omap_dm_timer *omap_dm_timer_request(void)
>  {
>  	return _omap_dm_timer_request(REQUEST_ANY, NULL);
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_request);
>  
>  struct omap_dm_timer *omap_dm_timer_request_specific(int id)
>  {
> @@ -315,7 +314,6 @@ struct omap_dm_timer *omap_dm_timer_request_specific(int id)
>  
>  	return _omap_dm_timer_request(REQUEST_BY_ID, &id);
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_request_specific);
>  
>  /**
>   * omap_dm_timer_request_by_cap - Request a timer by capability
> @@ -330,7 +328,6 @@ struct omap_dm_timer *omap_dm_timer_request_by_cap(u32 cap)
>  {
>  	return _omap_dm_timer_request(REQUEST_BY_CAP, &cap);
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_request_by_cap);
>  
>  /**
>   * omap_dm_timer_request_by_node - Request a timer by device-tree node
> @@ -346,7 +343,6 @@ struct omap_dm_timer *omap_dm_timer_request_by_node(struct device_node *np)
>  
>  	return _omap_dm_timer_request(REQUEST_BY_NODE, np);
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_request_by_node);
>  
>  int omap_dm_timer_free(struct omap_dm_timer *timer)
>  {
> @@ -359,7 +355,6 @@ int omap_dm_timer_free(struct omap_dm_timer *timer)
>  	timer->reserved = 0;
>  	return 0;
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_free);
>  
>  void omap_dm_timer_enable(struct omap_dm_timer *timer)
>  {
> @@ -379,13 +374,11 @@ void omap_dm_timer_enable(struct omap_dm_timer *timer)
>  		}
>  	}
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_enable);
>  
>  void omap_dm_timer_disable(struct omap_dm_timer *timer)
>  {
>  	pm_runtime_put_sync(&timer->pdev->dev);
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_disable);
>  
>  int omap_dm_timer_get_irq(struct omap_dm_timer *timer)
>  {
> @@ -393,7 +386,6 @@ int omap_dm_timer_get_irq(struct omap_dm_timer *timer)
>  		return timer->irq;
>  	return -EINVAL;
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_get_irq);
>  
>  #if defined(CONFIG_ARCH_OMAP1)
>  #include <mach/hardware.h>
> @@ -429,7 +421,6 @@ __u32 omap_dm_timer_modify_idlect_mask(__u32 inputmask)
>  
>  	return inputmask;
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_modify_idlect_mask);
>  
>  #else
>  
> @@ -439,7 +430,6 @@ struct clk *omap_dm_timer_get_fclk(struct omap_dm_timer *timer)
>  		return timer->fclk;
>  	return NULL;
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_get_fclk);
>  
>  __u32 omap_dm_timer_modify_idlect_mask(__u32 inputmask)
>  {
> @@ -447,7 +437,6 @@ __u32 omap_dm_timer_modify_idlect_mask(__u32 inputmask)
>  
>  	return 0;
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_modify_idlect_mask);
>  
>  #endif
>  
> @@ -461,7 +450,6 @@ int omap_dm_timer_trigger(struct omap_dm_timer *timer)
>  	omap_dm_timer_write_reg(timer, OMAP_TIMER_TRIGGER_REG, 0);
>  	return 0;
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_trigger);
>  
>  int omap_dm_timer_start(struct omap_dm_timer *timer)
>  {
> @@ -482,7 +470,6 @@ int omap_dm_timer_start(struct omap_dm_timer *timer)
>  	timer->context.tclr = l;
>  	return 0;
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_start);
>  
>  int omap_dm_timer_stop(struct omap_dm_timer *timer)
>  {
> @@ -506,7 +493,6 @@ int omap_dm_timer_stop(struct omap_dm_timer *timer)
>  	omap_dm_timer_disable(timer);
>  	return 0;
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_stop);
>  
>  int omap_dm_timer_set_source(struct omap_dm_timer *timer, int source)
>  {
> @@ -569,7 +555,6 @@ int omap_dm_timer_set_source(struct omap_dm_timer *timer, int source)
>  
>  	return ret;
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_set_source);
>  
>  int omap_dm_timer_set_load(struct omap_dm_timer *timer, int autoreload,
>  			    unsigned int load)
> @@ -595,7 +580,6 @@ int omap_dm_timer_set_load(struct omap_dm_timer *timer, int autoreload,
>  	omap_dm_timer_disable(timer);
>  	return 0;
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_set_load);
>  
>  /* Optimized set_load which removes costly spin wait in timer_start */
>  int omap_dm_timer_set_load_start(struct omap_dm_timer *timer, int autoreload,
> @@ -625,7 +609,6 @@ int omap_dm_timer_set_load_start(struct omap_dm_timer *timer, int autoreload,
>  	timer->context.tcrr = load;
>  	return 0;
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_set_load_start);
>  
>  int omap_dm_timer_set_match(struct omap_dm_timer *timer, int enable,
>  			     unsigned int match)
> @@ -650,7 +633,6 @@ int omap_dm_timer_set_match(struct omap_dm_timer *timer, int enable,
>  	omap_dm_timer_disable(timer);
>  	return 0;
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_set_match);
>  
>  int omap_dm_timer_set_pwm(struct omap_dm_timer *timer, int def_on,
>  			   int toggle, int trigger)
> @@ -676,7 +658,6 @@ int omap_dm_timer_set_pwm(struct omap_dm_timer *timer, int def_on,
>  	omap_dm_timer_disable(timer);
>  	return 0;
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_set_pwm);
>  
>  int omap_dm_timer_set_prescaler(struct omap_dm_timer *timer, int prescaler)
>  {
> @@ -699,7 +680,6 @@ int omap_dm_timer_set_prescaler(struct omap_dm_timer *timer, int prescaler)
>  	omap_dm_timer_disable(timer);
>  	return 0;
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_set_prescaler);
>  
>  int omap_dm_timer_set_int_enable(struct omap_dm_timer *timer,
>  				  unsigned int value)
> @@ -716,7 +696,6 @@ int omap_dm_timer_set_int_enable(struct omap_dm_timer *timer,
>  	omap_dm_timer_disable(timer);
>  	return 0;
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_set_int_enable);
>  
>  /**
>   * omap_dm_timer_set_int_disable - disable timer interrupts
> @@ -747,7 +726,6 @@ int omap_dm_timer_set_int_disable(struct omap_dm_timer *timer, u32 mask)
>  	omap_dm_timer_disable(timer);
>  	return 0;
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_set_int_disable);
>  
>  unsigned int omap_dm_timer_read_status(struct omap_dm_timer *timer)
>  {
> @@ -762,7 +740,6 @@ unsigned int omap_dm_timer_read_status(struct omap_dm_timer *timer)
>  
>  	return l;
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_read_status);
>  
>  int omap_dm_timer_write_status(struct omap_dm_timer *timer, unsigned int value)
>  {
> @@ -773,7 +750,6 @@ int omap_dm_timer_write_status(struct omap_dm_timer *timer, unsigned int value)
>  
>  	return 0;
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_write_status);
>  
>  unsigned int omap_dm_timer_read_counter(struct omap_dm_timer *timer)
>  {
> @@ -784,7 +760,6 @@ unsigned int omap_dm_timer_read_counter(struct omap_dm_timer *timer)
>  
>  	return __omap_dm_timer_read_counter(timer, timer->posted);
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_read_counter);
>  
>  int omap_dm_timer_write_counter(struct omap_dm_timer *timer, unsigned int value)
>  {
> @@ -799,7 +774,6 @@ int omap_dm_timer_write_counter(struct omap_dm_timer *timer, unsigned int value)
>  	timer->context.tcrr = value;
>  	return 0;
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timer_write_counter);
>  
>  int omap_dm_timers_active(void)
>  {
> @@ -816,7 +790,6 @@ int omap_dm_timers_active(void)
>  	}
>  	return 0;
>  }
> -EXPORT_SYMBOL_GPL(omap_dm_timers_active);
>  
>  static const struct of_device_id omap_timer_match[];
>  
> -- 
> 1.9.1
> 
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