treewide: use get_random_bytes() when possible

The prandom_bytes() function has been a deprecated inline wrapper around
get_random_bytes() for several releases now, and compiles down to the
exact same code. Replace the deprecated wrapper with a direct call to
the real function. This was done as a basic find and replace.

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Yury Norov <yury.norov@gmail.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu> # powerpc
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

3 files changed, 8 insertions, 8 deletions

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index eed98c10ca9d..04cf7684f1b0 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -3874,7 +3874,7 @@ static void bnxt_init_vnics(struct bnxt *bp)
 
 		if (bp->vnic_info[i].rss_hash_key) {
 			if (i == 0)
-				prandom_bytes(vnic->rss_hash_key,
+				get_random_bytes(vnic->rss_hash_key,
 					      HW_HASH_KEY_SIZE);
 			else
 				memcpy(vnic->rss_hash_key,
diff --git a/drivers/net/ethernet/rocker/rocker_main.c b/drivers/net/ethernet/rocker/rocker_main.c
index 5672d952452f..9e59669a93dd 100644
--- a/drivers/net/ethernet/rocker/rocker_main.c
+++ b/drivers/net/ethernet/rocker/rocker_main.c
@@ -224,7 +224,7 @@ static int rocker_dma_test_offset(const struct rocker *rocker,
 	if (err)
 		goto unmap;
 
-	prandom_bytes(buf, ROCKER_TEST_DMA_BUF_SIZE);
+	get_random_bytes(buf, ROCKER_TEST_DMA_BUF_SIZE);
 	for (i = 0; i < ROCKER_TEST_DMA_BUF_SIZE; i++)
 		expect[i] = ~buf[i];
 	err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_INVERT,
diff --git a/drivers/net/wireguard/selftest/allowedips.c b/drivers/net/wireguard/selftest/allowedips.c
index dd897c0740a2..19eac00b2381 100644
--- a/drivers/net/wireguard/selftest/allowedips.c
+++ b/drivers/net/wireguard/selftest/allowedips.c
@@ -284,7 +284,7 @@ static __init bool randomized_test(void)
 	mutex_lock(&mutex);
 
 	for (i = 0; i < NUM_RAND_ROUTES; ++i) {
-		prandom_bytes(ip, 4);
+		get_random_bytes(ip, 4);
 		cidr = prandom_u32_max(32) + 1;
 		peer = peers[prandom_u32_max(NUM_PEERS)];
 		if (wg_allowedips_insert_v4(&t, (struct in_addr *)ip, cidr,
@@ -299,7 +299,7 @@ static __init bool randomized_test(void)
 		}
 		for (j = 0; j < NUM_MUTATED_ROUTES; ++j) {
 			memcpy(mutated, ip, 4);
-			prandom_bytes(mutate_mask, 4);
+			get_random_bytes(mutate_mask, 4);
 			mutate_amount = prandom_u32_max(32);
 			for (k = 0; k < mutate_amount / 8; ++k)
 				mutate_mask[k] = 0xff;
@@ -328,7 +328,7 @@ static __init bool randomized_test(void)
 	}
 
 	for (i = 0; i < NUM_RAND_ROUTES; ++i) {
-		prandom_bytes(ip, 16);
+		get_random_bytes(ip, 16);
 		cidr = prandom_u32_max(128) + 1;
 		peer = peers[prandom_u32_max(NUM_PEERS)];
 		if (wg_allowedips_insert_v6(&t, (struct in6_addr *)ip, cidr,
@@ -343,7 +343,7 @@ static __init bool randomized_test(void)
 		}
 		for (j = 0; j < NUM_MUTATED_ROUTES; ++j) {
 			memcpy(mutated, ip, 16);
-			prandom_bytes(mutate_mask, 16);
+			get_random_bytes(mutate_mask, 16);
 			mutate_amount = prandom_u32_max(128);
 			for (k = 0; k < mutate_amount / 8; ++k)
 				mutate_mask[k] = 0xff;
@@ -381,13 +381,13 @@ static __init bool randomized_test(void)
 
 	for (j = 0;; ++j) {
 		for (i = 0; i < NUM_QUERIES; ++i) {
-			prandom_bytes(ip, 4);
+			get_random_bytes(ip, 4);
 			if (lookup(t.root4, 32, ip) != horrible_allowedips_lookup_v4(&h, (struct in_addr *)ip)) {
 				horrible_allowedips_lookup_v4(&h, (struct in_addr *)ip);
 				pr_err("allowedips random v4 self-test: FAIL\n");
 				goto free;
 			}
-			prandom_bytes(ip, 16);
+			get_random_bytes(ip, 16);
 			if (lookup(t.root6, 128, ip) != horrible_allowedips_lookup_v6(&h, (struct in6_addr *)ip)) {
 				pr_err("allowedips random v6 self-test: FAIL\n");
 				goto free;