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    SubjectRe: 2.6.22-rc3-mm1
    On Thu, 31 May 2007 15:10:05 -0700,
    Andrew Morton <akpm@linux-foundation.org> wrote:

    > Cornelia, afaict your patch has no actual delendency upon Dan's
    > dma-mapping-prevent-dma-dependent-code-from-linking-on.patch, correct? If
    > so, I can merge it via James and then merge Dan's patch once James has
    > merged.

    AFAICS there's no dependency in that direction.

    > diff -puN include/scsi/scsi_cmnd.h~scsi-dont-build-scsi_dma_mapunmap-for-has_dma include/scsi/scsi_cmnd.h
    > --- a/include/scsi/scsi_cmnd.h~scsi-dont-build-scsi_dma_mapunmap-for-has_dma
    > +++ a/include/scsi/scsi_cmnd.h
    > @@ -135,8 +135,10 @@ extern void scsi_kunmap_atomic_sg(void *
    > extern struct scatterlist *scsi_alloc_sgtable(struct scsi_cmnd *, gfp_t);
    > extern void scsi_free_sgtable(struct scatterlist *, int);
    >
    > +#ifdef CONFIG_SCSI_DMA
    > extern int scsi_dma_map(struct scsi_cmnd *cmd);
    > extern void scsi_dma_unmap(struct scsi_cmnd *cmd);
    > +#endif
    >
    > #define scsi_sg_count(cmd) ((cmd)->use_sg)
    > #define scsi_sglist(cmd) ((struct scatterlist *)(cmd)->request_buffer)
    >
    > We don't really need the ifdefs here. If someone incorrectly calls these
    > functions then they'll get a link-time failure anyway. The downside of
    > removing these ifdefs is that they won't get a compile-time warning, but I
    > tend to think that this small cost is worth it.

    OK, fine with me.
    -
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