Re: [PATCH] SCSI on non-ISA systems

Russell King (rmk@arm.linux.org.uk)
Fri, 8 Nov 2002 13:57:42 +0000

On Fri, Nov 08, 2002 at 02:46:40PM +0100, Geert Uytterhoeven wrote:
> Since 2.5.31, the compilation of kernel/dma.c is conditional on
> CONFIG_GENERIC_ISA_DMA. However, drivers/scsi/hosts.c unconditionally calls
> free_dma(), which breaks machines with SCSI that don't have ISA.

This isn't actually the original purpose of CONFIG_GENERIC_ISA_DMA (it
was to allow an architecture to provide ISA-like DMA without having to
use the ISA DMA request/free functions - eg, they need to claim interrupts
on request_dma() and free them on free_dma()).

However, since this function isn't used on ARM, it doesn't affect me,
and so I don't have any problem with this patch. 8)

-- 
Russell King (rmk@arm.linux.org.uk)                The developer of ARM Linux
             http://www.arm.linux.org.uk/personal/aboutme.html


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