staging: gasket: fix compilation on 5.1+
https://lore.kernel.org/patchwork/patch/1039724/
Bug: 158716452
Change-Id: I3c90a6524d3859e5518b7aece5a2817ed1f3efed
diff --git a/drivers/staging/gasket/gasket_page_table.c b/drivers/staging/gasket/gasket_page_table.c
index c42b42c..930c38b 100644
--- a/drivers/staging/gasket/gasket_page_table.c
+++ b/drivers/staging/gasket/gasket_page_table.c
@@ -50,6 +50,7 @@
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/pagemap.h>
+#include <linux/version.h>
#include <linux/vmalloc.h>
#include "gasket_constants.h"
@@ -532,7 +533,12 @@ static int gasket_perform_mapping(struct gasket_page_table *pg_tbl,
return -EINVAL;
/* Page already mapped for DMA. */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 1, 0)
ptes[i].dma_addr = sg_page_iter_dma_address(sg_iter);
+#else
+ ptes[i].dma_addr = sg_page_iter_dma_address(
+ container_of(sg_iter, struct sg_dma_page_iter, base));
+#endif
ptes[i].page = NULL;
offset = 0;
} else if (is_coherent(pg_tbl, host_addr)) {
