Re: PATCH: fix "ide_scan_direction defined but not used" in ide.c

From: Muli Ben-Yehuda (mulix@mulix.org)
Date: Tue Jan 07 2003 - 11:01:30 EST

On Tue, Jan 07, 2003 at 04:36:17PM +0000, Alan Cox wrote:
> On Tue, 2003-01-07 at 13:10, Muli Ben-Yehuda wrote:
> > ide_scan_drection is only used if CONFIG_BLK_DEV_IDEPCI is defined,
> > giving a compilation warning otherwise. Against 2.5.54-bk.
>
> Please reject. This is uglier than the warning and not the right
> approach

Alan, I bow to your superior knowledge and judgement. However,
'ide_scan_direction' is only used in two places in ide.c, and both of
those are only compiled in if CONFIG_BLK_DEV_IDEPCI:

in ide_setup():

#ifdef CONFIG_BLK_DEV_IDEPCI
        if (!strcmp(s, "ide=reverse")) {
                ide_scan_direction = 1;
                printk(" : Enabled support for IDE inverse scan order.\n");
                return 1;
        }
#endif /* CONFIG_BLK_DEV_IDEPCI */

in probe_for_hwifs():

#ifdef CONFIG_BLK_DEV_IDEPCI
        if (pci_present())
        {
                ide_scan_pcibus(ide_scan_direction);
        }
#endif /* CONFIG_BLK_DEV_IDEPCI */

So protecting the variable with #ifdef .. #endif seems the simplest
and least intrusive way to fix it. How would you prefer I do it? 

-- 
Muli Ben-Yehuda

my opinions may seem crazy. But they all make sense. Insane sense, but
sense nontheless. -- Shlomi Fish on #offtopic.

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