The patch titled
Subject: drivers/car/random.c: randomize_range(): use random long instead of int
has been added to the -mm tree. Its filename is
randomize_range-use-random-long-instead-of-int.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/randomize_range-use-random-long-instead-of-int.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/randomize_range-use-random-long-instead-of-int.patch
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------------------------------------------------------
From: William Roberts <william.c.roberts@xxxxxxxxx>
Subject: drivers/car/random.c: randomize_range(): use random long instead of int
Use a long when generating the random range rather than an int. This will
produce better random distributions as well as matching all the types at
hand.
Link: http://lkml.kernel.org/r/1469471141-25669-1-git-send-email-william.c.roberts@xxxxxxxxx
Signed-off-by: William Roberts <william.c.roberts@xxxxxxxxx>
Acked-by: Kees Cook <keescook@xxxxxxxxxxxx>
Cc: Theodore Ts'o <tytso@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/char/random.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff -puN drivers/char/random.c~randomize_range-use-random-long-instead-of-int drivers/char/random.c
--- a/drivers/char/random.c~randomize_range-use-random-long-instead-of-int
+++ a/drivers/char/random.c
@@ -1837,7 +1837,8 @@ randomize_range(unsigned long start, uns
if (end <= start + len)
return 0;
- return PAGE_ALIGN(get_random_int() % range + start);
+
+ return PAGE_ALIGN(get_random_long() % range + start);
}
/* Interface for in-kernel drivers of true hardware RNGs.
_
Patches currently in -mm which might be from william.c.roberts@xxxxxxxxx are
randomize_range-use-random-long-instead-of-int.patch
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