[U-Boot] [PATCH 5/6] ARM: tegra: MASK_BITS_ no longer needs specific values

Stephen Warren swarren at wwwdotorg.org
Fri Jan 24 18:09:51 CET 2014


On 01/24/2014 06:50 AM, Thierry Reding wrote:
> On Wed, Jan 22, 2014 at 01:20:35PM -0700, Stephen Warren wrote:
>> From: Stephen Warren <swarren at nvidia.com>
>>
>> Since all code that sets or interprets MASK_BITS_* now uses the enums
>> to define/compare the values, there is no need for MASK_BITS_* to have
>> a specific integer value. In fact, having a specific integer value may
>> encourage people to hard-code those values, or interpret the values in
>> incorrect ways.
>>
>> As such, remove the logic that assigns a specific value to the enum
>> values in order to make it completely clear that it's just an enum, not
>> something that directly represents some integer value.
> 
> Ah yes, that's a nice way to clean it up as well, so my earlier comment
> about turning these into defines can be considered obsolete.

I guess I should read all the replies first:-)

>> diff --git a/arch/arm/include/asm/arch-tegra/clock.h b/arch/arm/include/asm/arch-tegra/clock.h

>>  enum {
>> -	MASK_BITS_31_30	= 2,	/* num of bits used to specify clock source */
>> +	MASK_BITS_31_30,	/* num of bits used to specify clock source */
> 
> Should the comment not be removed as well now?

Well, it the enum name still defines the position (and size), just not
the value any more:-)

But yes, it's obvious enough without the commment, so I'll remove that.



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