From 009faf132dc47dcfb604b95c93211da7d2c644e2 Mon Sep 17 00:00:00 2001
From: Shaun Tancheff <shaun.tancheff@hpe.com>
Date: Wed, 9 Nov 2022 07:33:40 -0600
Subject: [PATCH] LU-16116 build: Configure tests for rhltable, bitmap_alloc...
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rhel8.6 with kernel 5.18 breaks a couple of compile tests

struct rhltable test fails with:
... error: ‘hlt’ is used uninitialized in this function
    [-Werror=uninitialized]

rdma_wr() test failes with:
... error: assignment discards ‘const’ qualifier from pointer
    target type [-Werror=discarded-qualifiers]
   wr = rdma_wr(NULL);

nla_strdup() test fails due to unused variable 'tmp'

Test-Parameters: trivial
HPE-bug-id: LUS-11191
Signed-off-by: Shaun Tancheff <shaun.tancheff@hpe.com>
Change-Id: Ib2b1d223ac809cea157158fe35fd2535b04367df
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/48361
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Jian Yu <yujian@whamcloud.com>
Reviewed-by: Petros Koutoupis <petros.koutoupis@hpe.com>
---
 libcfs/autoconf/lustre-libcfs.m4 | 3 ++-
 lnet/autoconf/lustre-lnet.m4     | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/libcfs/autoconf/lustre-libcfs.m4 b/libcfs/autoconf/lustre-libcfs.m4
index 7a533ad..badfcf5 100644
--- a/libcfs/autoconf/lustre-libcfs.m4
+++ b/libcfs/autoconf/lustre-libcfs.m4
@@ -784,7 +784,7 @@ LB_CHECK_COMPILE([does 'struct rhltable' exist],
 rhtable, [
 	#include <linux/rhashtable.h>
 ],[
-	struct rhltable *hlt;
+	struct rhltable *hlt = NULL;
 
 	rhltable_destroy(hlt);
 ],[
@@ -1091,6 +1091,7 @@ nla_strdup, [
 	#include <net/netlink.h>
 ],[
 	char *tmp = nla_strdup(NULL, GFP_KERNEL);
+	(void)tmp;
 ],[
 	AC_DEFINE(HAVE_NLA_STRDUP, 1,
 		['nla_strdup' is available])
diff --git a/lnet/autoconf/lustre-lnet.m4 b/lnet/autoconf/lustre-lnet.m4
index 773b10f..7e89069 100644
--- a/lnet/autoconf/lustre-lnet.m4
+++ b/lnet/autoconf/lustre-lnet.m4
@@ -410,7 +410,7 @@ AS_IF([test $ENABLEO2IB != "no"], [
 		#endif
 		#include <rdma/ib_verbs.h>
 	],[
-		struct ib_rdma_wr *wr __attribute__ ((unused));
+		const struct ib_rdma_wr *wr __attribute__ ((unused));
 
 		wr = rdma_wr(NULL);
 	],[
-- 
1.8.3.1