Messages in this thread Patch in this message | | | From | Geert Uytterhoeven <> | Subject | [PATCH/RFC 5/6] scsi: Add NO_DMA dummies for SCSI DMA mapping API | Date | Tue, 6 Feb 2018 11:14:51 +0100 |
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Add dummies for scsi_dma_{,un}map(), to allow compile-testing if NO_DMA=y.
This prevents the following from showing up later:
ERROR: "scsi_dma_unmap" [drivers/firewire/firewire-sbp2.ko] undefined! ERROR: "scsi_dma_map" [drivers/firewire/firewire-sbp2.ko] undefined!
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> --- include/scsi/scsi_cmnd.h | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h index d8d4a902a88dedbc..6a123d1dd2f80624 100644 --- a/include/scsi/scsi_cmnd.h +++ b/include/scsi/scsi_cmnd.h @@ -171,8 +171,13 @@ extern void scsi_kunmap_atomic_sg(void *virt); extern int scsi_init_io(struct scsi_cmnd *cmd); +#ifdef CONFIG_SCSI_DMA extern int scsi_dma_map(struct scsi_cmnd *cmd); extern void scsi_dma_unmap(struct scsi_cmnd *cmd); +#else /* !CONFIG_SCSI_DMA */ +static inline int scsi_dma_map(struct scsi_cmnd *cmd) { return -ENOSYS; } +static inline void scsi_dma_unmap(struct scsi_cmnd *cmd) { } +#endif /* !CONFIG_SCSI_DMA */ static inline unsigned scsi_sg_count(struct scsi_cmnd *cmd) { -- 2.7.4
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