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Message-Id: <20221128135056.325-1-jszhang@kernel.org>
Date:   Mon, 28 Nov 2022 21:50:56 +0800
From:   Jisheng Zhang <jszhang@...nel.org>
To:     Alexander Viro <viro@...iv.linux.org.uk>
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] coredump: fix compile warning when ELF_CORE=n while COREDUMP=y

fix below build warning when ELF_CORE=n while COREDUMP=y:

fs/coredump.c:834:12: warning: ‘dump_emit_page’ defined but not used [-Wunused-function]
  834 | static int dump_emit_page(struct coredump_params *cprm, struct
      page *page)
      |            ^~~~~~~~~~~~~~

Signed-off-by: Jisheng Zhang <jszhang@...nel.org>
---
 fs/coredump.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/coredump.c b/fs/coredump.c
index 7bad7785e8e6..8663042ebe9c 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -831,6 +831,7 @@ 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 = {
@@ -863,6 +864,7 @@ 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)
 {
-- 
2.37.2

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