linux-kernel - Re: [2.6 patch] acpi/battery.c: make 2 functions static

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Message-ID: <20080301183550.GC25835@cs181133002.pp.htv.fi>
Date:	Sat, 1 Mar 2008 20:35:50 +0200
From:	Adrian Bunk <bunk@...nel.org>
To:	Alexey Starikovskiy <aystarik@...il.com>
Cc:	lenb@...nel.org, astarikovskiy@...e.de, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [2.6 patch] acpi/battery.c: make 2 functions static

On Sat, Mar 01, 2008 at 09:26:41PM +0300, Alexey Starikovskiy wrote:
> May I keep them inline?

The problem with such manual inlines is that we force gcc to always 
inline them - and history has shown that functions grow without the 
"inline" being removed.

And for static functions gcc should (at least in theory) know best when 
to inline them.

> Thanks,
> Alex.
> Adrian Bunk wrote:
>> This patch makes the following functions static instead of global inline:
>> - acpi_battery_present()
>> - acpi_battery_units()
>>
>> Signed-off-by: Adrian Bunk <bunk@...nel.org>
>>
>> ---
>>
>>  drivers/acpi/battery.c |    4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> 9cfc2b0a3162d8e2f23537faefb6937c97513f38 foobar
>> diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
>> index f6215e8..d941c5a 100644
>> --- a/drivers/acpi/battery.c
>> +++ b/drivers/acpi/battery.c
>> @@ -116,7 +116,7 @@ struct acpi_battery {
>>   #define to_acpi_battery(x) container_of(x, struct acpi_battery, bat);
>>  -inline int acpi_battery_present(struct acpi_battery *battery)
>> +static int acpi_battery_present(struct acpi_battery *battery)
>>  {
>>  	return battery->device->status.battery_present;
>>  }
>> @@ -235,7 +235,7 @@ static enum power_supply_property energy_battery_props[] = {
>>  #endif
>>   #ifdef CONFIG_ACPI_PROCFS_POWER
>> -inline char *acpi_battery_units(struct acpi_battery *battery)
>> +static char *acpi_battery_units(struct acpi_battery *battery)
>>  {
>>  	return (battery->power_unit)?"mA":"mW";
>>  }

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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