linux-kernel - [PATCH 3/3] genwqe: Remove unused parameter in some functions

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Message-Id: <20171214143406.14652-4-gpiccoli@linux.vnet.ibm.com>
Date:   Thu, 14 Dec 2017 12:34:06 -0200
From:   "Guilherme G. Piccoli" <gpiccoli@...ux.vnet.ibm.com>
To:     haver@...ux.vnet.ibm.com, linux-kernel@...r.kernel.org
Cc:     arnd@...db.de, gregkh@...uxfoundation.org,
        gpiccoli@...ux.vnet.ibm.com
Subject: [PATCH 3/3] genwqe: Remove unused parameter in some functions

This is a clean-up patch, no functional changes intended.

It removes the unused parameter of type "struct ddcb_requ*" from
the functions genwqe_user_vmap() and genwqe_user_vunmap().

Signed-off-by: Guilherme G. Piccoli <gpiccoli@...ux.vnet.ibm.com>
---
 drivers/misc/genwqe/card_base.h  |  6 ++----
 drivers/misc/genwqe/card_dev.c   | 12 ++++++------
 drivers/misc/genwqe/card_utils.c |  5 ++---
 3 files changed, 10 insertions(+), 13 deletions(-)

diff --git a/drivers/misc/genwqe/card_base.h b/drivers/misc/genwqe/card_base.h
index a9314b06b97b..1c3967f10f55 100644
--- a/drivers/misc/genwqe/card_base.h
+++ b/drivers/misc/genwqe/card_base.h
@@ -490,11 +490,9 @@ int  genwqe_read_app_id(struct genwqe_dev *cd, char *app_name, int len);
 
 /* Memory allocation/deallocation; dma address handling */
 int  genwqe_user_vmap(struct genwqe_dev *cd, struct dma_mapping *m,
-		      void *uaddr, unsigned long size,
-		      struct ddcb_requ *req);
+		      void *uaddr, unsigned long size);
 
-int  genwqe_user_vunmap(struct genwqe_dev *cd, struct dma_mapping *m,
-			struct ddcb_requ *req);
+int  genwqe_user_vunmap(struct genwqe_dev *cd, struct dma_mapping *m);
 
 static inline bool dma_mapping_used(struct dma_mapping *m)
 {
diff --git a/drivers/misc/genwqe/card_dev.c b/drivers/misc/genwqe/card_dev.c
index 9ca6d18e52e7..0dd6b5ef314a 100644
--- a/drivers/misc/genwqe/card_dev.c
+++ b/drivers/misc/genwqe/card_dev.c
@@ -226,7 +226,7 @@ static void genwqe_remove_mappings(struct genwqe_file *cfile)
 			kfree(dma_map);
 		} else if (dma_map->type == GENWQE_MAPPING_SGL_TEMP) {
 			/* we use dma_map statically from the request */
-			genwqe_user_vunmap(cd, dma_map, NULL);
+			genwqe_user_vunmap(cd, dma_map);
 		}
 	}
 }
@@ -249,7 +249,7 @@ static void genwqe_remove_pinnings(struct genwqe_file *cfile)
 		 * deleted.
 		 */
 		list_del_init(&dma_map->pin_list);
-		genwqe_user_vunmap(cd, dma_map, NULL);
+		genwqe_user_vunmap(cd, dma_map);
 		kfree(dma_map);
 	}
 }
@@ -790,7 +790,7 @@ static int genwqe_pin_mem(struct genwqe_file *cfile, struct genwqe_mem *m)
 		return -ENOMEM;
 
 	genwqe_mapping_init(dma_map, GENWQE_MAPPING_SGL_PINNED);
-	rc = genwqe_user_vmap(cd, dma_map, (void *)map_addr, map_size, NULL);
+	rc = genwqe_user_vmap(cd, dma_map, (void *)map_addr, map_size);
 	if (rc != 0) {
 		dev_err(&pci_dev->dev,
 			"[%s] genwqe_user_vmap rc=%d\n", __func__, rc);
@@ -820,7 +820,7 @@ static int genwqe_unpin_mem(struct genwqe_file *cfile, struct genwqe_mem *m)
 		return -ENOENT;
 
 	genwqe_del_pin(cfile, dma_map);
-	genwqe_user_vunmap(cd, dma_map, NULL);
+	genwqe_user_vunmap(cd, dma_map);
 	kfree(dma_map);
 	return 0;
 }
@@ -841,7 +841,7 @@ static int ddcb_cmd_cleanup(struct genwqe_file *cfile, struct ddcb_requ *req)
 
 		if (dma_mapping_used(dma_map)) {
 			__genwqe_del_mapping(cfile, dma_map);
-			genwqe_user_vunmap(cd, dma_map, req);
+			genwqe_user_vunmap(cd, dma_map);
 		}
 		if (req->sgls[i].sgl != NULL)
 			genwqe_free_sync_sgl(cd, &req->sgls[i]);
@@ -947,7 +947,7 @@ static int ddcb_cmd_fixups(struct genwqe_file *cfile, struct ddcb_requ *req)
 					m->write = 0;
 
 				rc = genwqe_user_vmap(cd, m, (void *)u_addr,
-						      u_size, req);
+						      u_size);
 				if (rc != 0)
 					goto err_out;
 
diff --git a/drivers/misc/genwqe/card_utils.c b/drivers/misc/genwqe/card_utils.c
index 0593105991da..8f2e6442d88b 100644
--- a/drivers/misc/genwqe/card_utils.c
+++ b/drivers/misc/genwqe/card_utils.c
@@ -571,7 +571,7 @@ static int genwqe_free_user_pages(struct page **page_list,
  * Return: 0 if success
  */
 int genwqe_user_vmap(struct genwqe_dev *cd, struct dma_mapping *m, void *uaddr,
-		     unsigned long size, struct ddcb_requ *req)
+		     unsigned long size)
 {
 	int rc = -EINVAL;
 	unsigned long data, offs;
@@ -641,8 +641,7 @@ int genwqe_user_vmap(struct genwqe_dev *cd, struct dma_mapping *m, void *uaddr,
  * @cd:         pointer to genwqe device
  * @m:          mapping params
  */
-int genwqe_user_vunmap(struct genwqe_dev *cd, struct dma_mapping *m,
-		       struct ddcb_requ *req)
+int genwqe_user_vunmap(struct genwqe_dev *cd, struct dma_mapping *m)
 {
 	struct pci_dev *pci_dev = cd->pci_dev;
 
-- 
2.15.0