[Xen-devel] [PATCH v3 6/9] video/xen-fbfront: Further s/MFN/GFN clean-up

[Julien Grall <julien.grall@xxxxxxxxxx>]

The PV driver xen-fbfront is only dealing with GFN and not MFN. Rename
all the occurence of MFN to GFN.

Also take the opportunity to replace to usage of pfn_to_gfn by
xen_page_to_gfn.

Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx>
Reviewed-by: David Vrabel <david.vrabel@xxxxxxxxxx>

---
Cc: Jean-Christophe Plagniol-Villard <plagnioj@xxxxxxxxxxxx>
Cc: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
Cc: linux-fbdev@xxxxxxxxxxxxxxx

    Changes in v3:
        - Typoes in the commit message
        - Renamed page_to_gfn to xen_page_to_gfn

    Changes in v2:
        - Add David's reviewed-by
---
 drivers/video/fbdev/xen-fbfront.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/video/fbdev/xen-fbfront.c 
b/drivers/video/fbdev/xen-fbfront.c
index 25e3cce..0567d51 100644
--- a/drivers/video/fbdev/xen-fbfront.c
+++ b/drivers/video/fbdev/xen-fbfront.c
@@ -46,7 +46,7 @@ struct xenfb_info {
        int                     nr_pages;
        int                     irq;
        struct xenfb_page       *page;
-       unsigned long           *mfns;
+       unsigned long           *gfns;
        int                     update_wanted; /* XENFB_TYPE_UPDATE wanted */
        int                     feature_resize; /* XENFB_TYPE_RESIZE ok */
        struct xenfb_resize     resize;         /* protected by resize_lock */
@@ -402,8 +402,8 @@ static int xenfb_probe(struct xenbus_device *dev,
 
        info->nr_pages = (fb_size + PAGE_SIZE - 1) >> PAGE_SHIFT;
 
-       info->mfns = vmalloc(sizeof(unsigned long) * info->nr_pages);
-       if (!info->mfns)
+       info->gfns = vmalloc(sizeof(unsigned long) * info->nr_pages);
+       if (!info->gfns)
                goto error_nomem;
 
        /* set up shared page */
@@ -530,29 +530,29 @@ static int xenfb_remove(struct xenbus_device *dev)
                framebuffer_release(info->fb_info);
        }
        free_page((unsigned long)info->page);
-       vfree(info->mfns);
+       vfree(info->gfns);
        vfree(info->fb);
        kfree(info);
 
        return 0;
 }
 
-static unsigned long vmalloc_to_mfn(void *address)
+static unsigned long vmalloc_to_gfn(void *address)
 {
-       return pfn_to_gfn(vmalloc_to_pfn(address));
+       return xen_page_to_gfn(vmalloc_to_page(address));
 }
 
 static void xenfb_init_shared_page(struct xenfb_info *info,
                                   struct fb_info *fb_info)
 {
        int i;
-       int epd = PAGE_SIZE / sizeof(info->mfns[0]);
+       int epd = PAGE_SIZE / sizeof(info->gfns[0]);
 
        for (i = 0; i < info->nr_pages; i++)
-               info->mfns[i] = vmalloc_to_mfn(info->fb + i * PAGE_SIZE);
+               info->gfns[i] = vmalloc_to_gfn(info->fb + i * PAGE_SIZE);
 
        for (i = 0; i * epd < info->nr_pages; i++)
-               info->page->pd[i] = vmalloc_to_mfn(&info->mfns[i * epd]);
+               info->page->pd[i] = vmalloc_to_gfn(&info->gfns[i * epd]);
 
        info->page->width = fb_info->var.xres;
        info->page->height = fb_info->var.yres;
-- 
2.1.4


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