linux-kernel - [PATCH 4.19 320/323] RDMA/netlink: Add __maybe

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Message-Id: <20211124115729.719654512@linuxfoundation.org>
Date:   Wed, 24 Nov 2021 12:58:30 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, kernel test robot <lkp@...el.com>,
        Leon Romanovsky <leonro@...dia.com>,
        Jason Gunthorpe <jgg@...dia.com>
Subject: [PATCH 4.19 320/323] RDMA/netlink: Add __maybe_unused to static inline in C file

From: Leon Romanovsky <leonro@...dia.com>

commit 83dde7498fefeb920b1def317421262317d178e5 upstream.

Like other commits in the tree add __maybe_unused to a static inline in a
C file because some clang compilers will complain about unused code:

>> drivers/infiniband/core/nldev.c:2543:1: warning: unused function '__chk_RDMA_NL_NLDEV'
   MODULE_ALIAS_RDMA_NETLINK(RDMA_NL_NLDEV, 5);
   ^

Fixes: e3bf14bdc17a ("rdma: Autoload netlink client modules")
Link: https://lore.kernel.org/r/4a8101919b765e01d7fde6f27fd572c958deeb4a.1636267207.git.leonro@nvidia.com
Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Leon Romanovsky <leonro@...dia.com>
Signed-off-by: Jason Gunthorpe <jgg@...dia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 include/rdma/rdma_netlink.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/include/rdma/rdma_netlink.h
+++ b/include/rdma/rdma_netlink.h
@@ -24,7 +24,7 @@ enum rdma_nl_flags {
  * constant as well and the compiler checks they are the same.
  */
 #define MODULE_ALIAS_RDMA_NETLINK(_index, _val)                                \
-	static inline void __chk_##_index(void)                                \
+	static inline void __maybe_unused __chk_##_index(void)                 \
 	{                                                                      \
 		BUILD_BUG_ON(_index != _val);                                  \
 	}                                                                      \