Commit bd506c78 authored by Juergen Gross's avatar Juergen Gross
Browse files

xen/dmabuf: switch gntdev-dmabuf to use INVALID_GRANT_REF 



Instead of using a private macro for an invalid grant reference use
the common one.

Signed-off-by: default avatarJuergen Gross <jgross@suse.com>
Reviewed-by: default avatarBoris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: default avatarJuergen Gross <jgross@suse.com>
parent 297ce026

drivers/xen/gntdev-dmabuf.c

+2 −11
Original line number Diff line number Diff line
@@ -24,15 +24,6 @@ 


MODULE_IMPORT_NS(DMA_BUF);



#ifndef GRANT_INVALID_REF

/*

 * Note on usage of grant reference 0 as invalid grant reference:

 * grant reference 0 is valid, but never exposed to a driver,

 * because of the fact it is already in use/reserved by the PV console.

 */

#define GRANT_INVALID_REF	0

#endif



struct gntdev_dmabuf {

	struct gntdev_dmabuf_priv *priv;

	struct dma_buf *dmabuf;
@@ -532,7 +523,7 @@ static void dmabuf_imp_end_foreign_access(u32 *refs, int count) 
	int i;



	for (i = 0; i < count; i++)

		if (refs[i] != GRANT_INVALID_REF)

		if (refs[i] != INVALID_GRANT_REF)

			gnttab_end_foreign_access(refs[i], 0UL);

}
@@ -567,7 +558,7 @@ static struct gntdev_dmabuf *dmabuf_imp_alloc_storage(int count) 
	gntdev_dmabuf->nr_pages = count;



	for (i = 0; i < count; i++)

		gntdev_dmabuf->u.imp.refs[i] = GRANT_INVALID_REF;

		gntdev_dmabuf->u.imp.refs[i] = INVALID_GRANT_REF;



	return gntdev_dmabuf;