From 272be41c99a463ca7f110fdd96361432c70c9f97 Mon Sep 17 00:00:00 2001
From: Manish Bhardwaj <mbhardwaj@nvidia.com>
Date: Fri, 30 Sep 2022 00:18:17 +0530
Subject: [PATCH] nvidia: vblk: fix compilation error

in Linux v5.18 the following upstream commit removes
genhd.h and now only blkdev.h is needed.
commit 322cbb50de711814c42fb088f6d31901502c711a
Author: Christoph Hellwig <hch@lst.de>
Date:   Mon Jan 24 10:39:13 2022 +0100

    block: remove genhd.h

Using this change we are fixing below compilation
error while upgrading the stable kernel.
/dvs/git/dirty/git-master_linux/out/nvidia/kernel-nvidia-oot/
nvidia-oot/drivers/block/tegra_virt_storage/tegra_vblk.h:9:10:
fatal error: linux/genhd.h: No such file or directory
    9 | #include <linux/genhd.h>
      |          ^~~~~~~~~~~~~~~
compilation terminated.

Bug 3733730

Signed-off-by: Manish Bhardwaj <mbhardwaj@nvidia.com>
Change-Id: Ib110b749ca48fed092fcadb9a6ab47d81cc25397
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2784497
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
---
 drivers/block/tegra_virt_storage/tegra_vblk.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/block/tegra_virt_storage/tegra_vblk.h b/drivers/block/tegra_virt_storage/tegra_vblk.h
index 94ddcb8c..5f032c90 100644
--- a/drivers/block/tegra_virt_storage/tegra_vblk.h
+++ b/drivers/block/tegra_virt_storage/tegra_vblk.h
@@ -6,7 +6,10 @@
 #ifndef _TEGRA_VBLK_H_
 #define _TEGRA_VBLK_H_
 
+#include <linux/version.h>
+#if KERNEL_VERSION(5, 19, 0) > LINUX_VERSION_CODE
 #include <linux/genhd.h>
+#endif
 #include <linux/blkdev.h>
 #include <linux/blk-mq.h>
 #include <linux/bio.h>