git: d93223f34bee - stable/14 - random: Make random_source definitions const

The branch stable/14 has been updated by markj:

URL: https://cgit.FreeBSD.org/src/commit/?id=d93223f34beeb0f57a8bc67fdb9870899934eea8

commit d93223f34beeb0f57a8bc67fdb9870899934eea8
Author:     Mark Johnston <markj@FreeBSD.org>
AuthorDate: 2025-08-19 14:06:02 +0000
Commit:     Mark Johnston <markj@FreeBSD.org>
CommitDate: 2025-09-21 14:52:38 +0000

    random: Make random_source definitions const
    
    We can do so trivially, so make these tables read-only.  No functional
    change intended.
    
    Reviewed by:    cem, emaste
    MFC after:      2 weeks
    Sponsored by:   Stormshield
    Sponsored by:   Klara, Inc.
    Differential Revision:  https://reviews.freebsd.org/D52003
    
    (cherry picked from commit d5f55356a2fbf8222fb236fe509821e12f1ea456)
---
 sys/crypto/ccp/ccp.c                  | 2 +-
 sys/dev/qcom_rnd/qcom_rnd.c           | 2 +-
 sys/dev/random/armv8rng.c             | 2 +-
 sys/dev/random/darn.c                 | 2 +-
 sys/dev/random/ivy.c                  | 2 +-
 sys/dev/random/nehemiah.c             | 2 +-
 sys/dev/random/random_harvestq.c      | 6 +++---
 sys/dev/random/randomdev.h            | 4 ++--
 sys/dev/virtio/random/virtio_random.c | 2 +-
 9 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/sys/crypto/ccp/ccp.c b/sys/crypto/ccp/ccp.c
index 7db9a27ab059..c3d40f6e99ac 100644
--- a/sys/crypto/ccp/ccp.c
+++ b/sys/crypto/ccp/ccp.c
@@ -79,7 +79,7 @@ static struct pciid {
 	{ 0x15df1022, "AMD CCP-5a" },
 };
 
-static struct random_source random_ccp = {
+static const struct random_source random_ccp = {
 	.rs_ident = "AMD CCP TRNG",
 	.rs_source = RANDOM_PURE_CCP,
 	.rs_read = random_ccp_read,
diff --git a/sys/dev/qcom_rnd/qcom_rnd.c b/sys/dev/qcom_rnd/qcom_rnd.c
index 5d1bdac14981..af89c697f45d 100644
--- a/sys/dev/qcom_rnd/qcom_rnd.c
+++ b/sys/dev/qcom_rnd/qcom_rnd.c
@@ -64,7 +64,7 @@ static int	qcom_rnd_detach(device_t);
 static int	qcom_rnd_harvest(struct qcom_rnd_softc *, void *, size_t *);
 static unsigned	qcom_rnd_read(void *, unsigned);
 
-static struct random_source random_qcom_rnd = {
+static const struct random_source random_qcom_rnd = {
 	.rs_ident = "Qualcomm Entropy Adapter",
 	.rs_source = RANDOM_PURE_QUALCOMM,
 	.rs_read = qcom_rnd_read,
diff --git a/sys/dev/random/armv8rng.c b/sys/dev/random/armv8rng.c
index 61698bfff820..524d80317681 100644
--- a/sys/dev/random/armv8rng.c
+++ b/sys/dev/random/armv8rng.c
@@ -44,7 +44,7 @@
 static u_int random_rndr_read(void *, u_int);
 
 static bool has_rndr;
-static struct random_source random_armv8_rndr = {
+static const struct random_source random_armv8_rndr = {
 	.rs_ident = "Armv8 rndr RNG",
 	.rs_source = RANDOM_PURE_ARMV8,
 	.rs_read = random_rndr_read,
diff --git a/sys/dev/random/darn.c b/sys/dev/random/darn.c
index 4db1718db8f3..a23fdf0343d3 100644
--- a/sys/dev/random/darn.c
+++ b/sys/dev/random/darn.c
@@ -57,7 +57,7 @@
 
 static u_int random_darn_read(void *, u_int);
 
-static struct random_source random_darn = {
+static const struct random_source random_darn = {
 	.rs_ident = "PowerISA DARN random number generator",
 	.rs_source = RANDOM_PURE_DARN,
 	.rs_read = random_darn_read
diff --git a/sys/dev/random/ivy.c b/sys/dev/random/ivy.c
index 114f6e3fe277..4614ccb32ebe 100644
--- a/sys/dev/random/ivy.c
+++ b/sys/dev/random/ivy.c
@@ -52,7 +52,7 @@
 static bool has_rdrand, has_rdseed;
 static u_int random_ivy_read(void *, u_int);
 
-static struct random_source random_ivy = {
+static const struct random_source random_ivy = {
 	.rs_ident = "Intel Secure Key RNG",
 	.rs_source = RANDOM_PURE_RDRAND,
 	.rs_read = random_ivy_read
diff --git a/sys/dev/random/nehemiah.c b/sys/dev/random/nehemiah.c
index e01fdb952108..ddda959c8fd2 100644
--- a/sys/dev/random/nehemiah.c
+++ b/sys/dev/random/nehemiah.c
@@ -45,7 +45,7 @@
 
 static u_int random_nehemiah_read(void *, u_int);
 
-static struct random_source random_nehemiah = {
+static const struct random_source random_nehemiah = {
 	.rs_ident = "VIA Nehemiah Padlock RNG",
 	.rs_source = RANDOM_PURE_NEHEMIAH,
 	.rs_read = random_nehemiah_read
diff --git a/sys/dev/random/random_harvestq.c b/sys/dev/random/random_harvestq.c
index f38fd8e92c36..b1ff99b36720 100644
--- a/sys/dev/random/random_harvestq.c
+++ b/sys/dev/random/random_harvestq.c
@@ -109,7 +109,7 @@ __read_frequently u_int hc_source_mask;
 
 struct random_sources {
 	CK_LIST_ENTRY(random_sources)	 rrs_entries;
-	struct random_source		*rrs_source;
+	const struct random_source	*rrs_source;
 };
 
 static CK_LIST_HEAD(sources_head, random_sources) source_list =
@@ -619,7 +619,7 @@ random_harvest_deregister_source(enum random_entropy_source source)
 }
 
 void
-random_source_register(struct random_source *rsource)
+random_source_register(const struct random_source *rsource)
 {
 	struct random_sources *rrs;
 
@@ -638,7 +638,7 @@ random_source_register(struct random_source *rsource)
 }
 
 void
-random_source_deregister(struct random_source *rsource)
+random_source_deregister(const struct random_source *rsource)
 {
 	struct random_sources *rrs = NULL;
 
diff --git a/sys/dev/random/randomdev.h b/sys/dev/random/randomdev.h
index e1c9ac7b680d..6d742447ea8b 100644
--- a/sys/dev/random/randomdev.h
+++ b/sys/dev/random/randomdev.h
@@ -103,8 +103,8 @@ struct random_source {
 	random_source_read_t		*rs_read;
 };
 
-void random_source_register(struct random_source *);
-void random_source_deregister(struct random_source *);
+void random_source_register(const struct random_source *);
+void random_source_deregister(const struct random_source *);
 
 #endif /* _KERNEL */
 
diff --git a/sys/dev/virtio/random/virtio_random.c b/sys/dev/virtio/random/virtio_random.c
index d54e2e6b70d4..4a661ad0c19d 100644
--- a/sys/dev/virtio/random/virtio_random.c
+++ b/sys/dev/virtio/random/virtio_random.c
@@ -78,7 +78,7 @@ static struct virtio_feature_desc vtrnd_feature_desc[] = {
 	{ 0, NULL }
 };
 
-static struct random_source random_vtrnd = {
+static const struct random_source random_vtrnd = {
 	.rs_ident = "VirtIO Entropy Adapter",
 	.rs_source = RANDOM_PURE_VIRTIO,
 	.rs_read = vtrnd_read,