The patch titled
Subject: linux/bits.h: clarify macro argument names
has been added to the -mm tree. Its filename is
linux-bitsh-clarify-macro-argument-names.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/linux-bitsh-clarify-macro-argument-names.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/linux-bitsh-clarify-macro-argument-names.patch
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------------------------------------------------------
From: Rikard Falkeborn <rikard.falkeborn@xxxxxxxxx>
Subject: linux/bits.h: clarify macro argument names
Be a little more verbose to improve readability.
Link: http://lkml.kernel.org/r/20190801230358.4193-1-rikard.falkeborn@xxxxxxxxx
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@xxxxxxxxx>
Cc: Joe Perches <joe@xxxxxxxxxxx>
Cc: https://lore.kernel.org/r/20190729143109.18683-1-johannes@xxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
Cc: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/bits.h | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
--- a/include/linux/bits.h~linux-bitsh-clarify-macro-argument-names
+++ a/include/linux/bits.h
@@ -14,16 +14,16 @@
#define BITS_PER_BYTE 8
/*
- * Create a contiguous bitmask starting at bit position @l and ending at
- * position @h. For example
+ * Create a contiguous bitmask starting at bit position @low and ending at
+ * position @high. For example
* GENMASK_ULL(39, 21) gives us the 64bit vector 0x000000ffffe00000.
*/
-#define GENMASK(h, l) \
- (((~UL(0)) - (UL(1) << (l)) + 1) & \
- (~UL(0) >> (BITS_PER_LONG - 1 - (h))))
+#define GENMASK(high, low) \
+ (((~UL(0)) - (UL(1) << (low)) + 1) & \
+ (~UL(0) >> (BITS_PER_LONG - 1 - (high))))
-#define GENMASK_ULL(h, l) \
- (((~ULL(0)) - (ULL(1) << (l)) + 1) & \
- (~ULL(0) >> (BITS_PER_LONG_LONG - 1 - (h))))
+#define GENMASK_ULL(high, low) \
+ (((~ULL(0)) - (ULL(1) << (low)) + 1) & \
+ (~ULL(0) >> (BITS_PER_LONG_LONG - 1 - (high))))
#endif /* __LINUX_BITS_H */
_
Patches currently in -mm which might be from rikard.falkeborn@xxxxxxxxx are
linux-bitsh-clarify-macro-argument-names.patch
linux-bitsh-add-compile-time-sanity-check-of-genmask-inputs.patch
