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D32370.1776898528.diff
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Index: sys/dev/virtio/mmio/virtio_mmio.c
===================================================================
--- sys/dev/virtio/mmio/virtio_mmio.c
+++ sys/dev/virtio/mmio/virtio_mmio.c
@@ -88,7 +88,7 @@
static uint8_t vtmmio_get_status(device_t);
static void vtmmio_set_status(device_t, uint8_t);
static void vtmmio_read_dev_config(device_t, bus_size_t, void *, int);
-static void vtmmio_write_dev_config(device_t, bus_size_t, void *, int);
+static void vtmmio_write_dev_config(device_t, bus_size_t, const void *, int);
static void vtmmio_describe_features(struct vtmmio_softc *, const char *,
uint64_t);
static void vtmmio_probe_and_attach_child(struct vtmmio_softc *);
@@ -737,7 +737,7 @@
static void
vtmmio_write_dev_config(device_t dev, bus_size_t offset,
- void *src, int length)
+ const void *src, int length)
{
struct vtmmio_softc *sc;
bus_size_t off;
@@ -755,21 +755,21 @@
if (sc->vtmmio_version > 1) {
switch (length) {
case 1:
- vtmmio_write_config_1(sc, off, *(uint8_t *)src);
+ vtmmio_write_config_1(sc, off, *(const uint8_t *)src);
break;
case 2:
vtmmio_write_config_2(sc, off,
- htole16(*(uint16_t *)src));
+ htole16(*(const uint16_t *)src));
break;
case 4:
vtmmio_write_config_4(sc, off,
- htole32(*(uint32_t *)src));
+ htole32(*(const uint32_t *)src));
break;
case 8:
vtmmio_write_config_4(sc, off,
- htole32(*(uint64_t *)src));
+ htole32(*(const uint64_t *)src));
vtmmio_write_config_4(sc, off + 4,
- htole32((*(uint64_t *)src) >> 32));
+ htole32((*(const uint64_t *)src) >> 32));
break;
default:
panic("%s: invalid length %d\n", __func__, length);
Index: sys/dev/virtio/pci/virtio_pci_legacy.c
===================================================================
--- sys/dev/virtio/pci/virtio_pci_legacy.c
+++ sys/dev/virtio/pci/virtio_pci_legacy.c
@@ -97,7 +97,7 @@
static void vtpci_legacy_reinit_complete(device_t);
static void vtpci_legacy_notify_vq(device_t, uint16_t, bus_size_t);
static void vtpci_legacy_read_dev_config(device_t, bus_size_t, void *, int);
-static void vtpci_legacy_write_dev_config(device_t, bus_size_t, void *, int);
+static void vtpci_legacy_write_dev_config(device_t, bus_size_t, const void *, int);
static bool vtpci_legacy_setup_msix(struct vtpci_legacy_softc *sc);
static void vtpci_legacy_teardown_msix(struct vtpci_legacy_softc *sc);
@@ -519,11 +519,11 @@
static void
vtpci_legacy_write_dev_config(device_t dev, bus_size_t offset,
- void *src, int length)
+ const void *src, int length)
{
struct vtpci_legacy_softc *sc;
bus_size_t off;
- uint8_t *s;
+ const uint8_t *s;
int i;
sc = device_get_softc(dev);
Index: sys/dev/virtio/pci/virtio_pci_modern.c
===================================================================
--- sys/dev/virtio/pci/virtio_pci_modern.c
+++ sys/dev/virtio/pci/virtio_pci_modern.c
@@ -123,7 +123,7 @@
static void vtpci_modern_notify_vq(device_t, uint16_t, bus_size_t);
static int vtpci_modern_config_generation(device_t);
static void vtpci_modern_read_dev_config(device_t, bus_size_t, void *, int);
-static void vtpci_modern_write_dev_config(device_t, bus_size_t, void *, int);
+static void vtpci_modern_write_dev_config(device_t, bus_size_t, const void *, int);
static int vtpci_modern_probe_configs(device_t);
static int vtpci_modern_find_cap(device_t, uint8_t, int *);
@@ -686,7 +686,7 @@
}
static void
-vtpci_modern_write_dev_config(device_t dev, bus_size_t offset, void *src,
+vtpci_modern_write_dev_config(device_t dev, bus_size_t offset, const void *src,
int length)
{
struct vtpci_modern_softc *sc;
@@ -700,20 +700,20 @@
switch (length) {
case 1:
- vtpci_modern_write_device_1(sc, offset, *(uint8_t *) src);
+ vtpci_modern_write_device_1(sc, offset, *(const uint8_t *) src);
break;
case 2: {
- uint16_t val = virtio_gtoh16(true, *(uint16_t *) src);
+ uint16_t val = virtio_gtoh16(true, *(const uint16_t *) src);
vtpci_modern_write_device_2(sc, offset, val);
break;
}
case 4: {
- uint32_t val = virtio_gtoh32(true, *(uint32_t *) src);
+ uint32_t val = virtio_gtoh32(true, *(const uint32_t *) src);
vtpci_modern_write_device_4(sc, offset, val);
break;
}
case 8: {
- uint64_t val = virtio_gtoh64(true, *(uint64_t *) src);
+ uint64_t val = virtio_gtoh64(true, *(const uint64_t *) src);
vtpci_modern_write_device_8(sc, offset, val);
break;
}
Index: sys/dev/virtio/virtio.h
===================================================================
--- sys/dev/virtio/virtio.h
+++ sys/dev/virtio/virtio.h
@@ -123,7 +123,7 @@
void virtio_read_device_config(device_t dev, bus_size_t offset,
void *dst, int length);
void virtio_write_device_config(device_t dev, bus_size_t offset,
- void *src, int length);
+ const void *src, int length);
/* Inlined device specific read/write functions for common lengths. */
#define VIRTIO_RDWR_DEVICE_CONFIG(size, type) \
Index: sys/dev/virtio/virtio.c
===================================================================
--- sys/dev/virtio/virtio.c
+++ sys/dev/virtio/virtio.c
@@ -321,7 +321,7 @@
}
void
-virtio_write_device_config(device_t dev, bus_size_t offset, void *dst, int len)
+virtio_write_device_config(device_t dev, bus_size_t offset, const void *dst, int len)
{
VIRTIO_BUS_WRITE_DEVICE_CONFIG(device_get_parent(dev),
Index: sys/dev/virtio/virtio_bus_if.m
===================================================================
--- sys/dev/virtio/virtio_bus_if.m
+++ sys/dev/virtio/virtio_bus_if.m
@@ -107,7 +107,7 @@
METHOD void write_device_config {
device_t dev;
bus_size_t offset;
- void *src;
+ const void *src;
int len;
};

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