linux-kernel - [PATCH 3/3] page-flags: rectify forward declaration

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Date:	Sat, 19 Sep 2015 22:42:59 +0530
From:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:	Haavard Skinnemoen <hskinnemoen@...il.com>,
	Hans-Christian Egtvedt <egtvedt@...fundet.no>,
	Felipe Balbi <balbi@...com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Sudip Mukherjee <sudipm.mukherjee@...il.com>
Subject: [PATCH 3/3] page-flags: rectify forward declaration

compound_head is defined as inline in page-flags.h but in the forward
declaration of compound_head in the same file missed "inline". As a result
we got plenty of build warnings while building for some architecture
like avr32. The warning showed as:
warning: 'compound_head' declared inline after being called.
warning: previous declaration of 'compound_head' was here

Signed-off-by: Sudip Mukherjee <sudip@...torindia.org>
---

tested build with avr32 and also with x86_64 allmodconfig to verify that
nothing breaks due to this change.

 include/linux/page-flags.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index ab1a0e9..2a2391c 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -227,7 +227,7 @@ static inline int __TestClearPage##uname(struct page *page) { return 0; }
 struct page;
 static inline int PageCompound(struct page *page);
 static inline int PageTail(struct page *page);
-static struct page *compound_head(struct page *page);
+static inline struct page *compound_head(struct page *page);
 
 __PAGEFLAG(Locked, locked, PF_NO_TAIL)
 PAGEFLAG(Error, error, PF_NO_COMPOUND) TESTCLEARFLAG(Error, error, PF_NO_COMPOUND)
-- 
1.9.1

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