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authorRasmus Villemoes <linux@rasmusvillemoes.dk>2018-10-31 01:05:10 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2018-10-31 18:54:12 +0300
commit41e7b1661ffbf562d3aa2b7ce4ad283db50b711a (patch)
tree5eaeb90dd4a5146b1054d63c25f055658c25e6b3 /include/linux/bitmap.h
parentd9873969fa8725dc6a5a21ab788c057fd8719751 (diff)
downloadlinux-41e7b1661ffbf562d3aa2b7ce4ad283db50b711a.tar.xz
linux/bitmap.h: relax comment on compile-time constant nbits
It's not clear what's so horrible about emitting a function call to handle a run-time sized bitmap. Moreover, gcc also emits a function call for a compile-time-constant-but-huge nbits, so the comment isn't even accurate. Link: http://lkml.kernel.org/r/20180818131623.8755-6-linux@rasmusvillemoes.dk Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Yury Norov <ynorov@caviumnetworks.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/bitmap.h')
-rw-r--r--include/linux/bitmap.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index 4032680e629d..f58e97446abc 100644
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -28,8 +28,8 @@
* The available bitmap operations and their rough meaning in the
* case that the bitmap is a single unsigned long are thus:
*
- * Note that nbits should be always a compile time evaluable constant.
- * Otherwise many inlines will generate horrible code.
+ * The generated code is more efficient when nbits is known at
+ * compile-time and at most BITS_PER_LONG.
*
* ::
*