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treewide: use get_random_u32_below() instead of deprecated function

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This is a simple mechanical transformation done by:

@@
expression E;
@@
- prandom_u32_max
+ get_random_u32_below
  (E)

Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Darrick J. Wong <djwong@kernel.org> # for xfs
Reviewed-by: SeongJae Park <sj@kernel.org> # for damon
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> # for infiniband
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> # for arm
Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # for mmc
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld
2022-10-09 20:44:02 -06:00
parent 7f576b2593
commit 8032bf1233
132 changed files with 280 additions and 280 deletions
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2
net/ipv6/route.c
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@ -1713,7 +1713,7 @@ static int rt6_insert_exception(struct rt6_info *nrt,
net->ipv6.rt6_stats->fib_rt_cache++;
/* Randomize max depth to avoid some side channels attacks. */
max_depth = FIB6_MAX_DEPTH + prandom_u32_max(FIB6_MAX_DEPTH);
max_depth = FIB6_MAX_DEPTH + get_random_u32_below(FIB6_MAX_DEPTH);
while (bucket->depth > max_depth)
rt6_exception_remove_oldest(bucket);