From: Yury Norov <yury.norov@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Rasmus Villemoes <linux@rasmusvillemoes.dk>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
"David S . Miller" <davem@davemloft.net>,
Stephen Rothwell <sfr@canb.auug.org.au>,
Amritha Nambiar <amritha.nambiar@intel.com>,
Willem de Bruijn <willemb@google.com>,
Kees Cook <keescook@chromium.org>,
Matthew Wilcox <willy@infradead.org>,
"Tobin C . Harding" <tobin@kernel.org>,
Will Deacon <will.deacon@arm.com>,
Miklos Szeredi <mszeredi@redhat.com>,
Vineet Gupta <vineet.gupta1@synopsys.com>,
Chris Wilson <chris@chris-wilson.co.uk>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
linux-kernel@vger.kernel.org
Cc: Yury Norov <yury.norov@gmail.com>,
Yury Norov <ynorov@marvell.com>, Jens Axboe <axboe@kernel.dk>,
Steffen Klassert <steffen.klassert@secunet.com>
Subject: [PATCH 2/7] bitops: more BITS_TO_* macros
Date: Sun, 21 Jul 2019 14:27:48 -0700 [thread overview]
Message-ID: <20190721212753.3287-3-yury.norov@gmail.com> (raw)
In-Reply-To: <20190721212753.3287-1-yury.norov@gmail.com>
From Yury Norov <ynorov@marvell.com>
Introduce BITS_TO_U64, BITS_TO_U32 and BITS_TO_BYTES as they are handy
in the following patches (BITS_TO_U32 specifically). Reimplement tools/
version of the macros according to the kernel implementation.
Also fix indentation for BITS_PER_TYPE definition.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Yury Norov <ynorov@marvell.com>
Signed-off-by: Yury Norov <yury.norov@gmail.com>
---
include/linux/bitops.h | 5 ++++-
tools/include/linux/bitops.h | 9 +++++----
2 files changed, 9 insertions(+), 5 deletions(-)
diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index cf074bce3eb32..e61c4e6142641 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -4,8 +4,11 @@
#include <asm/types.h>
#include <linux/bits.h>
-#define BITS_PER_TYPE(type) (sizeof(type) * BITS_PER_BYTE)
+#define BITS_PER_TYPE(type) (sizeof(type) * BITS_PER_BYTE)
#define BITS_TO_LONGS(nr) DIV_ROUND_UP(nr, BITS_PER_TYPE(long))
+#define BITS_TO_U64(nr) DIV_ROUND_UP(nr, BITS_PER_TYPE(u64))
+#define BITS_TO_U32(nr) DIV_ROUND_UP(nr, BITS_PER_TYPE(u32))
+#define BITS_TO_BYTES(nr) DIV_ROUND_UP(nr, BITS_PER_TYPE(char))
extern unsigned int __sw_hweight8(unsigned int w);
extern unsigned int __sw_hweight16(unsigned int w);
diff --git a/tools/include/linux/bitops.h b/tools/include/linux/bitops.h
index 0b0ef3abc966e..a8ba37a50d086 100644
--- a/tools/include/linux/bitops.h
+++ b/tools/include/linux/bitops.h
@@ -13,10 +13,11 @@
#include <linux/bits.h>
#include <linux/compiler.h>
-#define BITS_TO_LONGS(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
-#define BITS_TO_U64(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u64))
-#define BITS_TO_U32(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u32))
-#define BITS_TO_BYTES(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE)
+#define BITS_PER_TYPE(type) (sizeof(type) * BITS_PER_BYTE)
+#define BITS_TO_LONGS(nr) DIV_ROUND_UP(nr, BITS_PER_TYPE(long))
+#define BITS_TO_U64(nr) DIV_ROUND_UP(nr, BITS_PER_TYPE(u64))
+#define BITS_TO_U32(nr) DIV_ROUND_UP(nr, BITS_PER_TYPE(u32))
+#define BITS_TO_BYTES(nr) DIV_ROUND_UP(nr, BITS_PER_TYPE(char))
extern unsigned int __sw_hweight8(unsigned int w);
extern unsigned int __sw_hweight16(unsigned int w);
--
2.20.1
next prev parent reply other threads:[~2019-07-21 21:28 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-21 21:27 [PATCH v3 0/7] lib: rework bitmap_parse Yury Norov
2019-07-21 21:27 ` [PATCH 1/7] lib/string: add strnchrnul() Yury Norov
2019-07-21 21:27 ` Yury Norov [this message]
2019-07-21 21:27 ` [PATCH 3/7] lib: add test for bitmap_parse() Yury Norov
2019-07-21 21:27 ` [PATCH 4/7] lib: make bitmap_parse_user a wrapper on bitmap_parse Yury Norov
2019-07-21 21:27 ` [PATCH 5/7] lib: rework bitmap_parse() Yury Norov
2019-07-22 13:37 ` Andy Shevchenko
2019-07-21 21:27 ` [PATCH 6/7] lib: new testcases for bitmap_parse{_user} Yury Norov
2019-07-21 21:27 ` [PATCH 7/7] cpumask: don't calculate length of the input string Yury Norov
-- strict thread matches above, loose matches on Subject: below --
2020-01-02 4:30 [PATCH v5 0/7] lib: rework bitmap_parse Yury Norov
2020-01-02 4:30 ` [PATCH 2/7] bitops: more BITS_TO_* macros Yury Norov
2019-09-09 3:30 [PATCH v4 0/7] lib: rework bitmap_parse Yury Norov
2019-09-09 3:30 ` [PATCH 2/7] bitops: more BITS_TO_* macros Yury Norov
2019-05-01 1:06 [PATCH 0/7] lib: rework bitmap_parse Yury Norov
2019-05-01 1:06 ` [PATCH 2/7] bitops: more BITS_TO_* macros Yury Norov
2019-05-08 8:47 ` Andy Shevchenko
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