From: Sascha Hauer <s.hauer@pengutronix.de>
To: barebox@lists.infradead.org
Subject: [PATCH 4/4] ppc: Add missing __ffs implementation
Date: Wed, 16 Jul 2014 10:37:53 +0200 [thread overview]
Message-ID: <1405499873-6385-5-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1405499873-6385-1-git-send-email-s.hauer@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
arch/ppc/include/asm/bitops.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/ppc/include/asm/bitops.h b/arch/ppc/include/asm/bitops.h
index 74f7f6d..c4ed2de 100644
--- a/arch/ppc/include/asm/bitops.h
+++ b/arch/ppc/include/asm/bitops.h
@@ -153,6 +153,11 @@ extern __inline__ int ffz(unsigned int x)
return __ilog2(x & -x);
}
+static __inline__ int __ffs(unsigned long x)
+{
+ return __ilog2(x & -x);
+}
+
/*
* fls: find last (most-significant) bit set.
* Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
--
2.0.1
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prev parent reply other threads:[~2014-07-16 8:38 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-16 8:37 [PATCH] bitops updates Sascha Hauer
2014-07-16 8:37 ` [PATCH 1/4] X86: Move BITS_PER_LONG definition to types.h Sascha Hauer
2014-07-16 8:37 ` [PATCH 2/4] consistently use the same bitops.h file Sascha Hauer
2014-07-16 8:37 ` [PATCH 3/4] ppc: Use generic find_*_bit functions Sascha Hauer
2014-07-16 8:37 ` Sascha Hauer [this message]
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