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From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: barebox@lists.infradead.org
Cc: andrew.smirnov@gmail.com
Subject: [PATCH 3/5] log2: Use fls_long() in __roundup_pow_of_two()
Date: Thu, 23 Aug 2018 19:58:12 -0700	[thread overview]
Message-ID: <20180824025814.20886-4-andrew.smirnov@gmail.com> (raw)
In-Reply-To: <20180824025814.20886-1-andrew.smirnov@gmail.com>

Convert __roundup_pow_of_two() to use fls_long() instead of fls() so
the code would be identical to that found in Linux. This fix also
allowed next patch(taken from Linux kernel verbatim) to apply cleanly.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
---
 include/linux/log2.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/log2.h b/include/linux/log2.h
index 919a22790..c373295f3 100644
--- a/include/linux/log2.h
+++ b/include/linux/log2.h
@@ -54,7 +54,7 @@ bool is_power_of_2(unsigned long n)
 static inline __attribute__((const))
 unsigned long __roundup_pow_of_two(unsigned long n)
 {
-	return 1UL << fls(n - 1);
+	return 1UL << fls_long(n - 1);
 }
 
 /*
-- 
2.17.1


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  parent reply	other threads:[~2018-08-24  2:58 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-24  2:58 [PATCH 0/5] include/linux/log2.h warning fix Andrey Smirnov
2018-08-24  2:58 ` [PATCH 1/5] log2: make order_base_2() behave correctly on const input value zero Andrey Smirnov
2018-08-24  2:58 ` [PATCH 2/5] give up on gcc ilog2() constant optimizations Andrey Smirnov
2018-08-24  2:58 ` Andrey Smirnov [this message]
2018-08-24  2:58 ` [PATCH 4/5] linux/log2.h: fix kernel-doc notation Andrey Smirnov
2018-08-24  2:58 ` [PATCH 5/5] scsi: ilog2: create truly constant version for sparse Andrey Smirnov
2018-08-24  8:23 ` [PATCH 0/5] include/linux/log2.h warning fix Sascha Hauer

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