Re: [PATCH] 2.5.10 IDE 42

Martin Dalecki
2002-04-26T22:35:18Z

Uz.ytkownik Linus Torvalds napisa?:
>
> On Fri, 26 Apr 2002, Pavel Machek wrote:
>
>>>+ if (stat & READY_STAT)
>>>+ printk("DriveReady ");
>>>+ if (stat & WRERR_STAT)
>>>+ printk("DeviceFault ");
>>>+ if (stat & SEEK_STAT)
>>>+ printk("SeekComplete ");
>>>+ if (stat & DRQ_STAT)
>>>+ printk("DataRequest ");
>>>+ if (stat & ECC_STAT)
>>>+ printk("CorrectedError ");
>>>+ if (stat & INDEX_STAT)
>>>+ printk("Index ");
>>>+ if (stat & ERR_STAT)
>>>+ printk("Error ");
>>
>>I believe this is actually making it *less* readable.
>
>
> Somewhat agreed. Also, the above is just not the right way to do
> printouts.
>
> I'd suggest rewriting the whole big mess as something like
>
> #define STAT_STR(x,s) \
> ((stat & x ##_STAT) ? s " " : "")
>
> ...
>
> printf("IDE: %s%s%s%s%s%s..\n"
> STAT_STR(READY, "DriveReady"),
> STAT_STR(WERR, "DeviceFault"),
> ...
>
> which is pretty certain to generate much smaller code (not to mention
> smaller sources).

Agreed. Making the code more compact was the only reason I was
touching those debugging sections in first place.

BTW> I'm still puzzled that gcc-3.1 eats C++ like randomly
placed variable declarations. Is there someting I did miss in C9X
papers maybe?