diff options
author | Jason A. Donenfeld <Jason@zx2c4.com> | 2022-10-10 05:44:02 +0300 |
---|---|---|
committer | Jason A. Donenfeld <Jason@zx2c4.com> | 2022-11-18 04:18:02 +0300 |
commit | e8a533cbeb79809206f8724e89961e0079508c3c (patch) | |
tree | b81da4151f67029174482ab2fdbee7dc8c98c931 /drivers/infiniband/hw | |
parent | d247aabd391c3b2fa4f26874ed9136a7a142fcfd (diff) | |
download | linux-e8a533cbeb79809206f8724e89961e0079508c3c.tar.xz |
treewide: use get_random_u32_inclusive() when possible
These cases were done with this Coccinelle:
@@
expression H;
expression L;
@@
- (get_random_u32_below(H) + L)
+ get_random_u32_inclusive(L, H + L - 1)
@@
expression H;
expression L;
expression E;
@@
get_random_u32_inclusive(L,
H
- + E
- - E
)
@@
expression H;
expression L;
expression E;
@@
get_random_u32_inclusive(L,
H
- - E
- + E
)
@@
expression H;
expression L;
expression E;
expression F;
@@
get_random_u32_inclusive(L,
H
- - E
+ F
- + E
)
@@
expression H;
expression L;
expression E;
expression F;
@@
get_random_u32_inclusive(L,
H
- + E
+ F
- - E
)
And then subsequently cleaned up by hand, with several automatic cases
rejected if it didn't make sense contextually.
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> # for infiniband
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Diffstat (limited to 'drivers/infiniband/hw')
-rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_ah.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_ah.c b/drivers/infiniband/hw/hns/hns_roce_ah.c index b37d2a81584d..e77fcc74f15c 100644 --- a/drivers/infiniband/hw/hns/hns_roce_ah.c +++ b/drivers/infiniband/hw/hns/hns_roce_ah.c @@ -41,9 +41,8 @@ static inline u16 get_ah_udp_sport(const struct rdma_ah_attr *ah_attr) u16 sport; if (!fl) - sport = get_random_u32_below(IB_ROCE_UDP_ENCAP_VALID_PORT_MAX + - 1 - IB_ROCE_UDP_ENCAP_VALID_PORT_MIN) + - IB_ROCE_UDP_ENCAP_VALID_PORT_MIN; + sport = get_random_u32_inclusive(IB_ROCE_UDP_ENCAP_VALID_PORT_MIN, + IB_ROCE_UDP_ENCAP_VALID_PORT_MAX); else sport = rdma_flow_label_to_udp_sport(fl); |