From a88a06c213576ab3a96f6d45a6d40338e49f3883 Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Sat, 28 May 2022 08:42:54 +0000
Subject: [PATCH] fsicom: Import dma buffer apis with namespace

fsicom driver uses the  dma buffer which were exported
as EXPORT_SYMBOL_GPL() till K5.15. From k5.16, it is exported
with namespace i.e. EXPORT_SYMBOL_NS_GPL(). This change
needs to import namespace in fsicom driver for K5.16 onwards.

Add support for this.

Change-Id: I11a2dbe871c36dd467041866dce51cc0936331c4
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2719735
Reviewed-by: Rahul Bedarkar <rabedarkar@nvidia.com>
GVS: Gerrit_Virtual_Submit
---
 drivers/platform/tegra/tegra-fsicom.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/platform/tegra/tegra-fsicom.c b/drivers/platform/tegra/tegra-fsicom.c
index 67a5ca3b..db6408cb 100644
--- a/drivers/platform/tegra/tegra-fsicom.c
+++ b/drivers/platform/tegra/tegra-fsicom.c
@@ -11,6 +11,7 @@
 #include <linux/kdev_t.h>
 #include <linux/mailbox_client.h>
 #include <linux/sched/signal.h>
+#include <linux/version.h>
 #include <uapi/linux/tegra-fsicom.h>
 
 
@@ -254,6 +255,10 @@ static struct platform_driver fsicom_client = {
 
 module_platform_driver(fsicom_client);
 
+#if LINUX_VERSION_CODE > KERNEL_VERSION(5, 15, 0)
+MODULE_IMPORT_NS(DMA_BUF);
+#endif
+
 MODULE_DESCRIPTION("FSI-CCPLEX-COM driver");
 MODULE_AUTHOR("Prashant Shaw <pshaw@nvidia.com>");
 MODULE_LICENSE("GPL v2");