linux-kernel - [PATCH 3.12 009/235] m68k: Fix ndelay() macro

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Message-Id: <13e993f84eebae3672f94509cb858a7eae139aa0.1485514374.git.jslaby@suse.cz>
Date:   Fri, 27 Jan 2017 11:52:22 +0100
From:   Jiri Slaby <jslaby@...e.cz>
To:     stable@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Boris Brezillon <boris.brezillon@...e-electrons.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 009/235] m68k: Fix ndelay() macro

From: Boris Brezillon <boris.brezillon@...e-electrons.com>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

commit 7e251bb21ae08ca2e4fb28cc0981fac2685a8efa upstream.

The current ndelay() macro definition has an extra semi-colon at the
end of the line thus leading to a compilation error when ndelay is used
in a conditional block without curly braces like this one:

	if (cond)
		ndelay(t);
	else
		...

which, after the preprocessor pass gives:

	if (cond)
		m68k_ndelay(t);;
	else
		...

thus leading to the following gcc error:

	error: 'else' without a previous 'if'

Remove this extra semi-colon.

Signed-off-by: Boris Brezillon <boris.brezillon@...e-electrons.com>
Fixes: c8ee038bd1488 ("m68k: Implement ndelay() based on the existing udelay() logic")
Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 arch/m68k/include/asm/delay.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/m68k/include/asm/delay.h b/arch/m68k/include/asm/delay.h
index d28fa8fe26fe..c598d847d56b 100644
--- a/arch/m68k/include/asm/delay.h
+++ b/arch/m68k/include/asm/delay.h
@@ -114,6 +114,6 @@ static inline void __udelay(unsigned long usecs)
  */
 #define	HZSCALE		(268435456 / (1000000 / HZ))
 
-#define ndelay(n) __delay(DIV_ROUND_UP((n) * ((((HZSCALE) >> 11) * (loops_per_jiffy >> 11)) >> 6), 1000));
+#define ndelay(n) __delay(DIV_ROUND_UP((n) * ((((HZSCALE) >> 11) * (loops_per_jiffy >> 11)) >> 6), 1000))
 
 #endif /* defined(_M68K_DELAY_H) */
-- 
2.11.0