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From:   xurui <xurui@kylinos.cn>
To:     viro@zeniv.linux.org.uk
Cc:     trivial@kernel.org, linux-fsdevel@vger.kernel.org,
        linux-kernel@vger.kernel.org, xurui <xurui@kylinos.cn>
Subject: [PATCH] coredump: Fix a compilation issue with CONFIG_ELF_CORE=n
Date:   Wed,  4 Jan 2023 15:36:26 +0800
Message-Id: <20230104073626.1093400-1-xurui@kylinos.cn>
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A compilation issue occurred when CONFIG_ELF_CORE is not set:
fs/coredump.c:841:12: error: ‘dump_emit_page’ defined but not used [-Werror=unused-function]

Signed-off-by: xurui <xurui@kylinos.cn>
---
 fs/coredump.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/coredump.c b/fs/coredump.c
index de78bde2991b..95390a73b912 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -838,6 +838,7 @@ static int __dump_skip(struct coredump_params *cprm, size_t nr)
 	}
 }
 
+#ifdef CONFIG_ELF_CORE
 static int dump_emit_page(struct coredump_params *cprm, struct page *page)
 {
 	struct bio_vec bvec = {
@@ -870,6 +871,7 @@ static int dump_emit_page(struct coredump_params *cprm, struct page *page)
 
 	return 1;
 }
+#endif
 
 int dump_emit(struct coredump_params *cprm, const void *addr, int nr)
 {
-- 
2.25.1