linux-kernel - [RFC PATCH 57/60] hyper_dmabuf: change type of ref to shared pages to unsigned long

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Date:   Tue, 19 Dec 2017 11:30:13 -0800
From:   Dongwon Kim <dongwon.kim@...el.com>
To:     linux-kernel@...r.kernel.org
Cc:     dri-devel@...ts.freedesktop.org, xen-devel@...ts.xenproject.org,
        mateuszx.potrola@...el.com, dongwon.kim@...el.com
Subject: [RFC PATCH 57/60] hyper_dmabuf: change type of ref to shared pages to unsigned long

From: Mateusz Polrola <mateuszx.potrola@...el.com>

Changed data type of reference for the group of pages to be shared
unsigned long in case it is direct representation of the memory
address.

Signed-off-by: Mateusz Polrola <mateuszx.potrola@...el.com>
Signed-off-by: Dongwon Kim <dongwon.kim@...el.com>
---
 drivers/xen/hyper_dmabuf/hyper_dmabuf_drv.h         | 2 +-
 drivers/xen/hyper_dmabuf/xen/hyper_dmabuf_xen_shm.c | 4 ++--
 drivers/xen/hyper_dmabuf/xen/hyper_dmabuf_xen_shm.h | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/xen/hyper_dmabuf/hyper_dmabuf_drv.h b/drivers/xen/hyper_dmabuf/hyper_dmabuf_drv.h
index 9337d53..c2bb3ce 100644
--- a/drivers/xen/hyper_dmabuf/hyper_dmabuf_drv.h
+++ b/drivers/xen/hyper_dmabuf/hyper_dmabuf_drv.h
@@ -91,7 +91,7 @@ struct hyper_dmabuf_bknd_ops {
 	/* map remotely shared pages on importer's side via
 	 * hypervisor-specific method
 	 */
-	struct page ** (*map_shared_pages)(int, int, int, void **);
+	struct page ** (*map_shared_pages)(unsigned long, int, int, void **);
 
 	/* unmap and free shared pages on importer's side via
 	 * hypervisor-specific method
diff --git a/drivers/xen/hyper_dmabuf/xen/hyper_dmabuf_xen_shm.c b/drivers/xen/hyper_dmabuf/xen/hyper_dmabuf_xen_shm.c
index 16416f8..c6a15f1 100644
--- a/drivers/xen/hyper_dmabuf/xen/hyper_dmabuf_xen_shm.c
+++ b/drivers/xen/hyper_dmabuf/xen/hyper_dmabuf_xen_shm.c
@@ -252,8 +252,8 @@ int xen_be_unshare_pages(void **refs_info, int nents)
 /* Maps provided top level ref id and then return array of pages
  * containing data refs.
  */
-struct page **xen_be_map_shared_pages(int lvl3_gref, int domid,
-				   int nents, void **refs_info)
+struct page **xen_be_map_shared_pages(unsigned long lvl3_gref, int domid,
+				      int nents, void **refs_info)
 {
 	struct page *lvl3_table_page;
 	struct page **lvl2_table_pages;
diff --git a/drivers/xen/hyper_dmabuf/xen/hyper_dmabuf_xen_shm.h b/drivers/xen/hyper_dmabuf/xen/hyper_dmabuf_xen_shm.h
index e02fab0b..d5236b5 100644
--- a/drivers/xen/hyper_dmabuf/xen/hyper_dmabuf_xen_shm.h
+++ b/drivers/xen/hyper_dmabuf/xen/hyper_dmabuf_xen_shm.h
@@ -37,7 +37,7 @@ int xen_be_unshare_pages(void **refs_info, int nents);
 /* Maps provided top level ref id and then return array of pages containing
  * data refs.
  */
-struct page **xen_be_map_shared_pages(int lvl3_gref, int domid,
+struct page **xen_be_map_shared_pages(unsigned long lvl3_gref, int domid,
 				      int nents,
 				      void **refs_info);
 
-- 
2.7.4