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Message-Id: <20230223034309.13375-1-rdunlap@infradead.org>
Date:   Wed, 22 Feb 2023 19:43:09 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     linux-kernel@...r.kernel.org
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Christoph Hellwig <hch@....de>, linux-ia64@...r.kernel.org
Subject: [PATCH] ia64: salinfo: placate defined-but-not-used warning

When CONFIG_PROC_FS is not set, proc_salinfo_show() is not used.
Mark the function as __maybe_unused to quieten the warning message.

../arch/ia64/kernel/salinfo.c:584:12: warning: 'proc_salinfo_show' defined but not used [-Wunused-function]
  584 | static int proc_salinfo_show(struct seq_file *m, void *v)
      |            ^~~~~~~~~~~~~~~~~

Fixes: 3f3942aca6da ("proc: introduce proc_create_single{,_data}")
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Christoph Hellwig <hch@....de>
Cc: linux-ia64@...r.kernel.org
---
The entire salinfo.c file looks like it should be conditional on
CONFIG_PROC_FS, but I'm just addressing warnings/errors here.

 arch/ia64/kernel/salinfo.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -- a/arch/ia64/kernel/salinfo.c b/arch/ia64/kernel/salinfo.c
--- a/arch/ia64/kernel/salinfo.c
+++ b/arch/ia64/kernel/salinfo.c
@@ -581,7 +581,7 @@ static int salinfo_cpu_pre_down(unsigned
  * 'data' contains an integer that corresponds to the feature we're
  * testing
  */
-static int proc_salinfo_show(struct seq_file *m, void *v)
+static int __maybe_unused proc_salinfo_show(struct seq_file *m, void *v)
 {
 	unsigned long data = (unsigned long)v;
 	seq_puts(m, (sal_platform_features & data) ? "1\n" : "0\n");

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