From 76a490bb98dcfe03be9b4453b8fe401cc2a77f7f Mon Sep 17 00:00:00 2001
From: Ankit Kumar <ankit.kumar@samsung.com>
Date: Tue, 31 May 2022 19:01:48 +0530
Subject: [PATCH] configure: check nvme uring command support

Modify configure to check availability of nvme_uring_cmd, but only
when the target OS is Linux. This way in the follow up patch we
can define the missing structure to prevent compilation errors.

Signed-off-by: Ankit Kumar <ankit.kumar@samsung.com>
Link: https://lore.kernel.org/r/20220531133155.17493-3-ankit.kumar@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 configure | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/configure b/configure
index 4ee536a0..8182322b 100755
--- a/configure
+++ b/configure
@@ -2587,6 +2587,27 @@ if test "$libzbc" != "no" ; then
 fi
 print_config "libzbc engine" "$libzbc"
 
+if test "$targetos" = "Linux" ; then
+##########################################
+# Check NVME_URING_CMD support
+cat > $TMPC << EOF
+#include <linux/nvme_ioctl.h>
+int main(void)
+{
+  struct nvme_uring_cmd *cmd;
+
+  return sizeof(struct nvme_uring_cmd);
+}
+EOF
+if compile_prog "" "" "nvme uring cmd"; then
+  output_sym "CONFIG_NVME_URING_CMD"
+  nvme_uring_cmd="yes"
+else
+  nvme_uring_cmd="no"
+fi
+print_config "NVMe uring command support" "$nvme_uring_cmd"
+fi
+
 ##########################################
 # Check if we have xnvme
 if test "$xnvme" != "yes" ; then
-- 
2.25.1