rapidio: remove some dead defines

Patch series "rapidio deadcoding".

A couple of rapidio deadcoding patches.  The first of these is a repost
and was originally posted almost a year ago
https://lore.kernel.org/all/20240528002515.211366-1-linux@treblig.org/ but
got no answer.  Other than being rebased and a typo fixed, it's not
changed.


This patch (of 2):

'mport_dma_buf', 'rio_mport_dma_map' and 'MPORT_MAX_DMA_BUFS' were added
in the original commit e8de370 ("rapidio: add mport char device
driver") but never used.

'rio_cm_work' was unused since the original commit b6e8d4a ("rapidio:
add RapidIO channelized messaging driver") but never used.

Remove them.

Link: https://lkml.kernel.org/r/20250419203012.429787-1-linux@treblig.org
Link: https://lkml.kernel.org/r/20250419203012.429787-2-linux@treblig.org
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Cc: Alexandre Bounine <alex.bou9@gmail.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Author: Dr. David Alan Gilbert

drivers/rapidio/devices/rio_mport_cdev.c

@@ -97,18 +97,6 @@ module_param(dbg_level, uint, S_IWUSR | S_IWGRP | S_IRUGO);
 MODULE_PARM_DESC(dbg_level, "Debugging output level (default 0 = none)");
 #endif
 
-/*
- * An internal DMA coherent buffer
- */
-struct mport_dma_buf {
-	void		*ib_base;
-	dma_addr_t	ib_phys;
-	u32		ib_size;
-	u64		ib_rio_base;
-	bool		ib_map;
-	struct file	*filp;
-};
-
 /*
  * Internal memory mapping structure
  */
@@ -131,14 +119,6 @@ struct rio_mport_mapping {
 	struct file *filp;
 };
 
-struct rio_mport_dma_map {
-	int valid;
-	u64 length;
-	void *vaddr;
-	dma_addr_t paddr;
-};
-
-#define MPORT_MAX_DMA_BUFS	16
 #define MPORT_EVENT_DEPTH	10
 
 /*

drivers/rapidio/rio_cm.c

@@ -198,12 +198,6 @@ struct cm_peer {
 	struct rio_dev *rdev;
 };
 
-struct rio_cm_work {
-	struct work_struct work;
-	struct cm_dev *cm;
-	void *data;
-};
-
 struct conn_req {
 	struct list_head node;
 	u32 destid;	/* requester destID */