treewide: use get_random_u32() when possible

The prandom_u32() function has been a deprecated inline wrapper around
get_random_u32() for several releases now, and compiles down to the
exact same code. Replace the deprecated wrapper with a direct call to
the real function. The same also applies to get_random_int(), which is
just a wrapper around get_random_u32(). This was done as a basic find
and replace.

Reviewed-by: Greg Kroah-Hartman <[email protected]>
Reviewed-by: Kees Cook <[email protected]>
Reviewed-by: Yury Norov <[email protected]>
Reviewed-by: Jan Kara <[email protected]> # for ext4
Acked-by: Toke Høiland-Jørgensen <[email protected]> # for sch_cake
Acked-by: Chuck Lever <[email protected]> # for nfsd
Acked-by: Jakub Kicinski <[email protected]>
Acked-by: Mika Westerberg <[email protected]> # for thunderbolt
Acked-by: Darrick J. Wong <[email protected]> # for xfs
Acked-by: Helge Deller <[email protected]> # for parisc
Acked-by: Heiko Carstens <[email protected]> # for s390
Signed-off-by: Jason A. Donenfeld <[email protected]>

3 files changed, 3 insertions, 3 deletions

diff --git a/include/net/netfilter/nf_queue.h b/include/net/netfilter/nf_queue.h
index 980daa6e1e3a..c81021ab07aa 100644
--- a/include/net/netfilter/nf_queue.h
+++ b/include/net/netfilter/nf_queue.h
@@ -43,7 +43,7 @@ void nf_queue_entry_free(struct nf_queue_entry *entry);
 static inline void init_hashrandom(u32 *jhash_initval)
 {
 	while (*jhash_initval == 0)
-		*jhash_initval = prandom_u32();
+		*jhash_initval = get_random_u32();
 }
 
 static inline u32 hash_v4(const struct iphdr *iph, u32 initval)
diff --git a/include/net/red.h b/include/net/red.h
index 454ac2b65d8c..425364de0df7 100644
--- a/include/net/red.h
+++ b/include/net/red.h
@@ -363,7 +363,7 @@ static inline unsigned long red_calc_qavg(const struct red_parms *p,
 
 static inline u32 red_random(const struct red_parms *p)
 {
-	return reciprocal_divide(prandom_u32(), p->max_P_reciprocal);
+	return reciprocal_divide(get_random_u32(), p->max_P_reciprocal);
 }
 
 static inline int red_mark_probability(const struct red_parms *p,
diff --git a/include/net/sock.h b/include/net/sock.h
index 08038a385ef2..9e464f6409a7 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -2109,7 +2109,7 @@ static inline kuid_t sock_net_uid(const struct net *net, const struct sock *sk)
 
 static inline u32 net_tx_rndhash(void)
 {
-	u32 v = prandom_u32();
+	u32 v = get_random_u32();
 
 	return v ?: 1;
 }