Re: Sparse warning in AHCI

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On Mon, 08 Sep 2008 21:12:10 +0200
Tejun Heo <htejun@xxxxxxxxx> wrote:

> Stephen Hemminger wrote:
> > Not sure how you want to fix this:
> > 
> >   CHECK   drivers/acpi/pci_irq.c
> > drivers/ata/ahci.c:323:2: warning: Initializer entry defined twice
> > drivers/ata/ahci.c:324:3:   also defined here
> > 
> > This happens because macro ATA_BASE_SHT(drv_name) defines .can_queue
> > then then later in the initializer for ahci_sht, it gets redefined.
> > 
> > Granted it probably works now, but sparse is correct to complain that
> > this is bad usage.
> > 
> 
> Hmm... That use is pretty much intentional to provide generic default
> initial value and allow specific drivers to override if necessary and I
> believe it's a valid C usage, no?

IANAL as Viro
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